Hack The Sec-Leading Resource Of Linux Tutorial: virtualization

How to Install oVirt on CentOS 7

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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">oVirt is an open-source distributed virtualization solution, designed to manage your entire enterprise infrastructure. oVirt uses the trusted KVM hypervisor and is built upon several other community projects, including libvirt, Gluster, PatternFly, and Ansible. It was founded by Red Hat as a community project on which Red Hat Enterprise Virtualization is based. It allows centralized management of virtual machines, compute, storage and networking resources, from an easy-to-use web-based front-end with platform independent access. KVM on x86-64 and PPC architecture are the only hypervisors supported, but there is an ongoing effort to support ARM architecture in the future releases. .</span></span><br />
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">For more  about </span></span><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">oVirt - https://en.wikipedia.org/wiki/OVirt</span></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgUmaYcnufdZ74HLER1yvih8QP3cAzLo327L5b1AR0gS0nlgaiJsH3s7rzY7KPd0o0yuKzcEArIMRVHweF0TtOxIb01TYZMmmrEMNz3XzWePl5TTouAvELaaijP_IVFJlP5Kx5h0gb2fos_/s1600/OVirt-logo-highres.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="200" data-original-width="450" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgUmaYcnufdZ74HLER1yvih8QP3cAzLo327L5b1AR0gS0nlgaiJsH3s7rzY7KPd0o0yuKzcEArIMRVHweF0TtOxIb01TYZMmmrEMNz3XzWePl5TTouAvELaaijP_IVFJlP5Kx5h0gb2fos_/s1600/OVirt-logo-highres.png" /></a></div>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><b>oVirt Engine Packages Installation Process</b><br />===========================</span></span></div>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">First, add the oVirt repository on your Centos 7 using below command. </span></span></div>
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">yum install http://resources.ovirt.org/pub/yum-repo/ovirt-release42.rpm</span></span></pre>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvY6CRUPsDN1G1CjYjs1AGTNfQQOhv4781aaZascTh4TyZMibZIvHxtiNg5IXxU3m-C7vryrHI1A89SxcoSKdgWYkcMiNfrVTIGaK0iHP23ZCt3fqlw0MQq4tCzD2otHUa7HIJTP2pUGYj/s1600/oVirt_repo_hackthesec.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="495" data-original-width="797" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvY6CRUPsDN1G1CjYjs1AGTNfQQOhv4781aaZascTh4TyZMibZIvHxtiNg5IXxU3m-C7vryrHI1A89SxcoSKdgWYkcMiNfrVTIGaK0iHP23ZCt3fqlw0MQq4tCzD2otHUa7HIJTP2pUGYj/s1600/oVirt_repo_hackthesec.png" /></a></div>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Now update your centos 7 packages using below command.</span></span></div>
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">yum update -y</span></span></pre>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Now, Run the following command to install the ovirt-engine package and dependencies.</span></span></div>
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">yum install ovirt-engine -y</span></span></pre>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikRgxvS2fMhi7JVoX3P-NAUnxY5OOgoO2G3gmk23HeZGPUH82y6j_hyphenhyphenHTYoKV5BymScffam9gS09PDY9jbchpwgBAHDug7K7yUTYQcwPp7NVEngG0Bp8LN_6UNJhAwcDzj8f9UoA9-bh2l/s1600/oVirt_install_hackthesec.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="502" data-original-width="801" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikRgxvS2fMhi7JVoX3P-NAUnxY5OOgoO2G3gmk23HeZGPUH82y6j_hyphenhyphenHTYoKV5BymScffam9gS09PDY9jbchpwgBAHDug7K7yUTYQcwPp7NVEngG0Bp8LN_6UNJhAwcDzj8f9UoA9-bh2l/s1600/oVirt_install_hackthesec.png" /></a></div>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><u><b>Configuring oVirt</b></u></span></span></div>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">After complete installation run the <span style="color: red;">engine-setup</span> command for configuration the oVirt Engine. </span></span></div>
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">engine-setup</span></span></pre>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"> Pres Enter to configure the engine:</span></span></div>
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">[root@hackthesec ~]# engine-setup
[ <span style="color: lime;">INFO  </span>] Stage: Initializing
[ <span style="color: lime;">INFO  </span>] Stage: Environment setup
          Configuration files: ['/etc/ovirt-engine-setup.conf.d/10-packaging-jboss.conf', '/etc/ovirt-engine-setup.conf.d/10-packaging.conf']
          Log file: /var/log/ovirt-engine/setup/ovirt-engine-setup-20190102113015-mptgj3.log
          Version: otopi-1.7.8 (otopi-1.7.8-1.el7)
[ <span style="color: lime;">INFO  </span>] Stage: Environment packages setup
[ <span style="color: lime;">INFO  </span>] Stage: Programs detection
[ <span style="color: lime;">INFO  </span>] Stage: Environment setup
[ <span style="color: lime;">INFO  </span>] Stage: Environment customization

--== PRODUCT OPTIONS ==--

Configure Engine on this host (Yes, No) [Yes]: yes
          Configure ovirt-provider-ovn (Yes, No) [Yes]: yes
          Configure Image I/O Proxy on this host (Yes, No) [Yes]: yes
          Configure WebSocket Proxy on this host (Yes, No) [Yes]: yes

* Please note * : Data Warehouse is required for the engine.
          If you choose to not configure it on this host, you have to configure
          it on a remote host, and then configure the engine on this host so
          that it can access the database of the remote Data Warehouse host.
          Configure Data Warehouse on this host (Yes, No) [Yes]: yes
          Configure VM Console Proxy on this host (Yes, No) [Yes]: yes

--== PACKAGES ==--

[ <span style="color: lime;">INFO  </span>] Checking for product updates...
[ <span style="color: lime;">INFO  </span>] No product updates found

--== NETWORK CONFIGURATION ==--

Host fully qualified DNS name of this server [hackthesec]:
[WARNING] Host name hackthesec has no domain suffix
[WARNING] Failed to resolve hackthesec using DNS, it can be resolved only locally
[WARNING] Host name hackthesec has no domain suffix
[WARNING] Host name hackthesec has no domain suffix
[WARNING] Host name hackthesec has no domain suffix

--== DATABASE CONFIGURATION ==--

Where is the DWH database located? (Local, Remote) [Local]:
          Setup can configure the local postgresql server automatically for the DWH to run. This may conflict with existing applications.
          Would you like Setup to automatically configure postgresql and create DWH database, or prefer to perform that manually? (Automatic, Manual) [Automatic]:
          Where is the Engine database located? (Local, Remote) [Local]:
          Setup can configure the local postgresql server automatically for the engine to run. This may conflict with existing applications.
          Would you like Setup to automatically configure postgresql and create Engine database, or prefer to perform that manually? (Automatic, Manual) [Automatic]:

--== OVIRT ENGINE CONFIGURATION ==--

Engine admin password:
          Confirm engine admin password:
[WARNING] Password is weak: it is too short
          Use weak password? (Yes, No) [No]: yes
          Application mode (Virt, Gluster, Both) [Both]: Both
          Use default credentials (admin@internal) for ovirt-provider-ovn (Yes, No) [Yes]: yes

--== STORAGE CONFIGURATION ==--

Default SAN wipe after delete (Yes, No) [No]: No

--== PKI CONFIGURATION ==--

Organization name for certificate [Test]:

--== APACHE CONFIGURATION ==--

Setup can configure the default page of the web server to present the application home page. This may conflict with existing applications.
          Do you wish to set the application as the default page of the web server? (Yes, No) [Yes]: yes
          Setup can configure apache to use SSL using a certificate issued from the internal CA.
          Do you wish Setup to configure that, or prefer to perform that manually? (Automatic, Manual) [Automatic]:

--== SYSTEM CONFIGURATION ==--

--== MISC CONFIGURATION ==--

Please choose Data Warehouse sampling scale:
          (1) Basic
          (2) Full
          (1, 2)[1]: 1

--== END OF CONFIGURATION ==--

[ <span style="color: lime;">INFO  </span>] Stage: Setup validation
[WARNING] Warning: Not enough memory is available on the host. Minimum requirement is 4096MB, and 16384MB is recommended.
          Do you want Setup to continue, with amount of memory less than recommended? (Yes, No) [No]: yes

--== CONFIGURATION PREVIEW ==--

Application mode                        : both
          Default SAN wipe after delete           : False
          Update Firewall                         : False
          Host FQDN                               : hackthesec
          Configure local Engine database         : True
          Set application as default page         : True
          Configure Apache SSL                    : True
          Engine database secured connection      : False
          Engine database user name               : engine
          Engine database name                    : engine
          Engine database host                    : localhost
          Engine database port                    : 5432
          Engine database host name validation    : False
          Engine installation                     : True
          PKI organization                        : Test
          Set up ovirt-provider-ovn               : True
          Configure WebSocket Proxy               : True
          DWH installation                        : True
          DWH database host                       : localhost
          DWH database port                       : 5432
          Configure local DWH database            : True
          Configure Image I/O Proxy               : True
          Configure VMConsole Proxy               : True

Please confirm installation settings (OK, Cancel) [OK]: OK
[ <span style="color: lime;">INFO  </span>] Stage: Transaction setup
[ <span style="color: lime;">INFO  </span>] Stopping engine service
[ <span style="color: lime;">INFO  </span>] Stopping ovirt-fence-kdump-listener service
[ <span style="color: lime;">INFO  </span>] Stopping dwh service
[ <span style="color: lime;">INFO  </span>] Stopping Image I/O Proxy service
[ <span style="color: lime;">INFO  </span>] Stopping vmconsole-proxy service
[ <span style="color: lime;">INFO  </span>] Stopping websocket-proxy service
[ <span style="color: lime;">INFO  </span>] Stage: Misc configuration
[ <span style="color: lime;">INFO  </span>] Stage: Package installation
[ <span style="color: lime;">INFO  </span>] Stage: Misc configuration
[ <span style="color: lime;">INFO  </span>] Upgrading CA
[ <span style="color: lime;">INFO  </span>] Initializing PostgreSQL
[ <span style="color: lime;">INFO  </span>] Creating PostgreSQL 'engine' database
[ <span style="color: lime;">INFO  </span>] Configuring PostgreSQL
[ <span style="color: lime;">INFO  </span>] Creating PostgreSQL 'ovirt_engine_history' database
[ <span style="color: lime;">INFO  </span>] Configuring PostgreSQL
[ <span style="color: lime;">INFO  </span>] Creating CA
[ <span style="color: lime;">INFO  </span>] Creating/refreshing DWH database schema
[ <span style="color: lime;">INFO  </span>] Configuring Image I/O Proxy
[ <span style="color: lime;">INFO  </span>] Setting up ovirt-vmconsole proxy helper PKI artifacts
[ <span style="color: lime;">INFO  </span>] Setting up ovirt-vmconsole SSH PKI artifacts
[ <span style="color: lime;">INFO  </span>] Configuring WebSocket Proxy
[ <span style="color: lime;">INFO  </span>] Creating/refreshing Engine database schema
[ <span style="color: lime;">INFO  </span>] Creating/refreshing Engine 'internal' domain database schema
[ <span style="color: lime;">INFO  </span>] Creating default mac pool range
[ <span style="color: lime;">INFO  </span>] Adding default OVN provider to database
[ <span style="color: lime;">INFO  </span>] Adding OVN provider secret to database
[ <span style="color: lime;">INFO  </span>] Setting a password for internal user admin
[ <span style="color: lime;">INFO  </span>] Generating post install configuration file '/etc/ovirt-engine-setup.conf.d/20-setup-ovirt-post.conf'
[ <span style="color: lime;">INFO  </span>] Stage: Transaction commit
[ <span style="color: lime;">INFO  </span>] Stage: Closing up
[ <span style="color: lime;">INFO  </span>] Starting engine service
[ <span style="color: lime;">INFO  </span>] Starting dwh service
[ <span style="color: lime;">INFO  </span>] Restarting ovirt-vmconsole proxy service

--== SUMMARY ==--

[ <span style="color: lime;">INFO  </span>] Restarting httpd
          In order to configure firewalld, copy the files from
              /etc/ovirt-engine/firewalld to /etc/firewalld/services
              and execute the following commands:
              firewall-cmd --permanent --add-service ovirt-postgres
              firewall-cmd --permanent --add-service ovirt-https
              firewall-cmd --permanent --add-service ovn-central-firewall-service
              firewall-cmd --permanent --add-service ovirt-fence-kdump-listener
              firewall-cmd --permanent --add-service ovirt-imageio-proxy
              firewall-cmd --permanent --add-service ovirt-websocket-proxy
              firewall-cmd --permanent --add-service ovirt-http
              firewall-cmd --permanent --add-service ovirt-vmconsole-proxy
              firewall-cmd --permanent --add-service ovirt-provider-ovn
              firewall-cmd --reload
          The following network ports should be opened:
              tcp:2222
              tcp:35357
              tcp:443
              tcp:5432
              tcp:54323
              tcp:6100
              tcp:6641
              tcp:6642
              tcp:80
              tcp:9696
              udp:7410
          An example of the required configuration for iptables can be found at:
              /etc/ovirt-engine/iptables.example
          Please use the user 'admin@internal' and password specified in order to login
          Web access is enabled at:
              http://hackthesec:80/ovirt-engine
              https://hackthesec:443/ovirt-engine
          Internal CA 18:E6:C2:E8:91:62:B1:66:96:6A:89:0F:2E:E7:BF:01:10:C8:D61
          SSH fingerprint: SHA256:sMTFaRt94ic/+LT3ASGtj4Fla3qK7zSNSEXbvgkzObI
[WARNING] Warning: Not enough memory is available on the host. Minimum requirement is 4096MB, and 16384MB is recommended.

--== END OF SUMMARY ==--

[ <span style="color: lime;">INFO  </span>] Stage: Clean up
          Log file is located at /var/log/ovirt-engine/setup/ovirt-engine-setup-20190102113015-mptgj3.log
[ <span style="color: lime;">INFO  </span>] Generating answer file '/var/lib/ovirt-engine/setup/answers/20190102113350-setup.conf'
[ <span style="color: lime;">INFO  </span>] Stage: Pre-termination
[ <span style="color: lime;">INFO  </span>] Stage: Termination
[ <span style="color: lime;">INFO  </span>] Execution of setup completed successfully
[root@hackthesec ~]#
</span></span></pre>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><u><b>Configure firewall </b></u></span></span></div>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">For access the oVirt web based management interface you have to open HTTP and HTTPS ports using below commands.</span></span></div>
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">[root@hackthesec ~]# firewall-cmd --add-service=http --permanent</span></span></pre>
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">[root@hackthesec ~]# firewall-cmd --add-service=https --permanent</span></span></pre>
<pre style="background: rgb(68, 67, 65); border-radius: 6px; border: 1px solid rgb(227, 227, 227); box-sizing: border-box; clear: none !important; margin-bottom: 10px !important; margin-top: 10px !important; overflow: auto; padding: 10px !important; width: auto !important; word-break: break-all;"><span style="color: white; font-family: monospace , serif;"><span style="font-size: 14px;">[root@hackthesec ~]# firewall-cmd --reload </span></span></pre>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><u><b>Now You Can Access oVirt Management Interface</b></u><br /><br />using your Ip address - https://192.168.1.1<br />or<br />https://ovirt.hackthesec.co.in</span></span></div>
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<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Thanks,<br />Hack The Sec</span></span></div>
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How to Install oVirt on CentOS 7

oVirt is an open-source distributed virtualization solution, designed to manage your entire enterprise infrastructure. oVirt uses the trust...

How to Create, List & Delete Docker Containers on Linux

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<u><span style="color: #990000;">Create, List & Delete Docker Containers on Linux</span></u></h2>
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<span style="color: #222222; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><a href="http://www.hackthesec.co.in/search/label/docker">Docker </a>is an open-source project that automates the deployment of applications inside software containers, by providing an additional layer of abstraction and automation of operating-system-level virtualization on <a href="http://www.hackthesec.co.in/search/label/Linux">Linux</a>.Docker uses the resource isolation </span></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEicfK2zPAWfWft9ZqDzctd3DLhN_uckKfAejxj8l8y9jAqHe-ut_I7jpl1IHtjWFYKW0QZmxQsgvp-DmSqfX-lp4qo9N3rmL9uyCwovMZt8uOWKqU72bSJcgBdbbzUHBq-dtyByE25nL9hk/s1600/docker_centos_www.hackthesec.co.in.png" imageanchor="1"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEicfK2zPAWfWft9ZqDzctd3DLhN_uckKfAejxj8l8y9jAqHe-ut_I7jpl1IHtjWFYKW0QZmxQsgvp-DmSqfX-lp4qo9N3rmL9uyCwovMZt8uOWKqU72bSJcgBdbbzUHBq-dtyByE25nL9hk/s1600/docker_centos_www.hackthesec.co.in.png" /></a></div>
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<span style="color: #222222; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">features of the Linux kernel such as cgroups and kernel namespaces, and a union-capable filesystem such as aufs and others to allow independent "containers" to run within a single Linux instance, avoiding the overhead of starting and maintaining virtual machines.</span></span></div>
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<a href="http://www.hackthesec.co.in/2016/02/how-to-install-and-manage-docker-on-ubuntu.html" itemprop="url" style="background-color: white; display: block; font-family: 'Open Sans', serif, sans-serif; font-size: 18.6px; font-weight: 600; text-decoration: none;"></a><ul style="text-align: left;"><a href="http://www.hackthesec.co.in/2016/02/how-to-install-and-manage-docker-on-ubuntu.html" itemprop="url" style="background-color: white; display: block; font-family: 'Open Sans', serif, sans-serif; font-size: 18.6px; font-weight: 600; text-decoration: none;"></a>
<li><a href="http://www.hackthesec.co.in/2016/02/how-to-install-and-manage-docker-on-ubuntu.html" itemprop="url" style="background-color: white; display: block; font-family: 'Open Sans', serif, sans-serif; font-size: 18.6px; font-weight: 600; text-decoration: none;"></a><a href="http://www.hackthesec.co.in/2016/02/how-to-install-and-manage-docker-on-ubuntu.html" itemprop="url" style="display: inline !important; font-size: 18.6px; text-decoration: none;"><span style="color: red;">How to Install and Manage Docker on Ubuntu 15.10 and 14.04 LTS</span></a></li>
<li><a href="http://www.hackthesec.co.in/2016/02/how-to-install-docker-on-centos-7-rhel-7.html" itemprop="url" style="display: inline !important; font-size: 18.6px; text-decoration: none;"><span style="color: red;">How to install Docker on CentOS 7 / RHEL 7</span></a></li>
</ul>
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<div style="font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
<b><u><span style="color: #0b5394;">Launch Docker Container</span></u></b></div>
<div style="color: #222222; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">
To launch a new Docker container using below command. This will start a new container and provide you access of that container with <b>/bin/bash</b> shell.</div>
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<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: large;"><span style="line-height: 20.8px;"># docker run [OPTIONS] <IMAGE NAME> [COMMAND] [ARG...]</span></span></pre>
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<span style="color: #222222; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">For example below command will create new docker container using image named "ubuntu". To list all available images use docker images command.</span></span></div>
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<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: large;"><span style="line-height: 20.8px;"># docker run -i -t ubuntu /bin/bash</span></span></pre>
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<span style="color: #222222; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">To exit from docker container type CTRL + P + Q. This will leave container running in background an provide you host system console. If you used exit command, it will stop the current container. <a href="https://docs.docker.com/engine/reference/run/">Click here</a> to read for more options about docker run command.</span></span></div>
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<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>List Docker Containers</u></b></span></span></div>
<div>
<span style="color: #222222; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">After existing from Docker container, execute below command to list all running containers.</span></span></div>
</div>
<div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); color: white; line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="font-size: 0.9em;"># </span><span style="font-size: large;">docker ps</span><span style="font-size: 0.9em;">

CONTAINER ID     IMAGE     COMMAND        CREATED        STATUS        PORTS    NAMES
g25536g95fgd     ubuntu    "/bin/bash"    1 hours ago    Up 1 hours             first_ubuntu</span></pre>
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<div>
<span style="color: #222222; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">By default Above command will list only running containers. To list all containers (including stopped container) use following command.</span></span></div>
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<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); color: white; line-height: 1.3em; margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="font-size: 0.9em;"># </span><span style="font-size: large;">docker ps -a</span><span style="font-size: 0.9em;">

CONTAINER ID   IMAGE   COMMAND        CREATED        STATUS        PORTS    NAMES
g25536g95fgd   ubuntu  "/bin/bash"    1 hours ago    Up 1 hours             first_ubuntu
j555io5jkdkd   centos  "/bin/bash"    1 days ago     Exited (0) 24 hours ago   ubuntu-web</span></pre>
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<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Start/Stop/Attach Container</u></b></span></span></div>
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<span style="color: #222222; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">You can start, stop or attach to any containers with following commands. To start container use following command.</span></span></div>
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<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: large;"><span style="line-height: 20.8px;"># docker start <CONTAINER ID|NAME></span></span></pre>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: large;"><span style="line-height: 20.8px;"># docker stop <CONTAINER ID|NAME></span></span></pre>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: large;"><span style="line-height: 20.8px;"># docker attach <CONTAINER ID|NAME></span></span></pre>
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<div>
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Drop Docker Container</u></b></span></span></div>
<div>
<span style="color: #222222; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Before deleting any container make sure that container is stopped. You can use ‘docker ps -a’ command to list status of containers. If container is still running first stop that container using given commands in above step.</span></span></div>
<div>
<span style="color: #222222; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div>
<div>
<span style="color: #222222; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Now use following command to delete single or multiple containers use following command.</span></span></div>
</div>
<div>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: large;"><span style="line-height: 20.8px;"># docker rm <CONTAINER ID|NAME> <CONTAINER ID|NAME></span></span></pre>
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<div>
<span style="color: #222222; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">You can also delete all stopped containers at once using following command.</span></span></div>
<div>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: large;"><span style="line-height: 20.8px;"># docker rm $(docker ps -a -q)</span></span></pre>
<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;"><a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></span></span></pre>
</div>
</div>
</div>

How to Create, List & Delete Docker Containers on Linux

Create, List & Delete Docker Containers on Linux Docker is an open-source project that automates the deployment of applications insi...

How to Install and Setup LXC Linux Containers on CentOS / RHEL / Ubuntu

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<u><span style="color: red;"><i>Install and Setup LXC Linux Containers on <a href="http://www.hackthesec.co.in/search/label/Centos" target="_blank">CentOS </a>/ <a href="http://www.hackthesec.co.in/search/label/RHEL" target="_blank">RHEL</a> / <a href="http://www.hackthesec.co.in/search/label/Ubuntu" target="_blank">Ubuntu</a></i></span></u></h1>
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LXC stands for Linux Containers.</div>
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Linux containers are light-weight “<b><a href="http://www.hackthesec.co.in/search/label/virtualization" target="_blank">virtualization</a></b>” methods that runs multiple virtual units simultaneously on a single control host on a single Linux kernel.</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOZeXvFNPHWXn8Isj3wRhdre9lDCWekmwavYmO8_49JrfLx2pyB2IgZ4aavWENrUkTf8SZUvLSChpYL22ynG5Bx7xJfWsV-R7HrsZpEajWd0zJOiTfbB_FAFC8jfxIQxYQcunCTzZUr0Qn/s1600/containers_LXC-www.hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="184" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOZeXvFNPHWXn8Isj3wRhdre9lDCWekmwavYmO8_49JrfLx2pyB2IgZ4aavWENrUkTf8SZUvLSChpYL22ynG5Bx7xJfWsV-R7HrsZpEajWd0zJOiTfbB_FAFC8jfxIQxYQcunCTzZUr0Qn/s200/containers_LXC-www.hackthesec.co.in.png" width="200" /></a></div>
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The Linux kernel contains cgroups for resource isolation (CPU, memory, block I/O, network, etc, ), which does not require starting any virtual machines.<br />
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Cgroups also provides namespace isolation to completely isolate application view of the operating environment, including process trees, networks, userids and mounted filesystems.</div>
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LXC is open source software and licensed under GNU LGPLv2.1+ license.</div>
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Containers actually make use of kernel features called namespaces, cgroups, and chroots, to carve off a contained area.</div>
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So, the end result of LXC looks much like a virtual machine, but without any hypervisor.</div>
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<span style="color: #0b5394;"><u>1. Pre-req for LXC Install</u></span></h3>
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Before you install LXC, make sure your system is up-to-date using yum update as shown below.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: white; font-size: medium;">yum </span><span style="color: lime; font-size: medium;">update</span></span></pre>
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LXC is dependent on two libraries; libpcap and libcgroup. This also requires busybox and bridge utilities.</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhj9V8hkUx0b10oO6a9hvyvmS8h2F4G6jqX7UWF_yTwtUEvPWkxQZW6zPposJThw21KP_eVnfznGW8tLa1s7e6hO5Uz-i3vEKxBzBydLaJ8bna3xonl2UrS9cG1lOsId__VnE2D-YR5KkIC/s1600/lxc-architecture-www.hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhj9V8hkUx0b10oO6a9hvyvmS8h2F4G6jqX7UWF_yTwtUEvPWkxQZW6zPposJThw21KP_eVnfznGW8tLa1s7e6hO5Uz-i3vEKxBzBydLaJ8bna3xonl2UrS9cG1lOsId__VnE2D-YR5KkIC/s320/lxc-architecture-www.hackthesec.co.in.jpg" width="242" /></a></div>
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Install the following required packages for our LXC install.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: white; font-size: medium;">yum install </span><span style="color: lime; font-size: medium;">libcap-devel libcgroup busybox wget bridge-utils</span></span></pre>
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Let us make sure we got all the compilers and related development tools that are required to compile and install any software from source code.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: white; font-size: medium;">yum groupinstall "</span><span style="color: lime; font-size: medium;">Development tools</span><span style="color: white; font-size: medium;">"</span></span></pre>
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<u><span style="color: #0b5394;">2. Download LXC Linux Containers</span></u></h3>
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Download the latest version of the LXC from <a href="https://linuxcontainers.org/lxc/downloads/" style="color: #dd0000; margin: 0px; padding: 0px; word-wrap: break-word;">Linux Containers Project</a>.</div>
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Use wget to download the tar ball of the latest stable version of LXC to your machine as shown below.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: lime; font-size: medium;">wget </span><span style="color: white; font-size: medium;">http://linuxcontainers.org/downloads/lxc-1.1.5.tar.gz</span></span></pre>
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If you get a certificate related error message while using the above wget, then use the no-check-certificate option as shown below.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: lime; font-size: medium;">wget --no-check-certificate</span><span style="color: white; font-size: medium;"> https://linuxcontainers.org/downloads/lxc-1.1.5.tar.gz</span></span></pre>
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Alternatively, if you prefer, you can also use git clone to download the latest development version or stable version as shown below.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: lime; font-size: medium;">git clone</span><span style="color: white; font-size: medium;"> git://github.com/lxc/lxc -b {branch}</span></span></pre>
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In the above command, the {branch} can either be “master” for the current development branch, or “stable-1.0″ for the stable update branch of the 1.0 version.</div>
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<u><span style="color: #0b5394;">3. Configure Bridged Adapter</span></u></h3>
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Next, create a bridged adapter and configure the static IP on the bridged adapter as shown in the following ifcfg-eth0 example. Ensure your physical adapter points to this bridged adapter in ifcfg-eth0.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$</span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: white; font-size: medium;"> cd /etc/sysconfig/</span><span style="color: lime; font-size: medium;">network-scripts</span><span style="color: white; font-size: medium;">

</span></span><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$</span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: white; font-size: medium;"> vi </span><span style="color: lime; font-size: medium;">ifcfg-br0</span><span style="color: white; font-size: medium;">

DEVICE="br0"
BOOTPROTO="static"
IPADDR="xxx.xxx.xxx.xxx"
NETMASK="255.255.255.xxx"
ONBOOT="yes"
TYPE="Bridge"
NM_CONTROLLED="no"</span></span></pre>
<div style="background-color: white; color: #111111; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 16px; line-height: 26px; margin-bottom: 26px; padding: 0px; word-wrap: break-word;">
Replace all the “xxx” in the above file with the values that matches your ip-address and networkmask. For example, change the IPADDR value in the above file to the ip-address of your machine.</div>
<h3 style="background-color: white; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 1.286em; line-height: 1.222em; margin: 1.833em 0px 0.611em; padding: 0px; word-wrap: break-word;">
<u><span style="color: #0b5394;">4. Install LXC Linux Container</span></u></h3>
<div style="background-color: white; color: #111111; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 16px; line-height: 26px; margin-bottom: 26px; padding: 0px; word-wrap: break-word;">
Next, untar the LXC tar ball, that we downloaded earlier, execute the ./configure, and do make and make install, to install the LXC on your system as shown below.</div>
<div style="background-color: white; color: #111111; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 16px; line-height: 26px; margin-bottom: 26px; padding: 0px; word-wrap: break-word;">
By default, this will install all the lxc binaries under /usr/local/bin directory.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: white; font-size: medium;">tar xvfz </span><span style="color: lime; font-size: medium;">lxc-1.1.5.tar.gz</span><span style="color: white; font-size: medium;">

</span></span><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: lime; font-size: medium;">make && make install</span></span></pre>
<div style="background-color: white; color: #111111; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 16px; line-height: 26px; margin-bottom: 26px; padding: 0px; word-wrap: break-word;">
The following are few of the last few lines from the output for the above ./configure command.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: white; font-size: medium;">./configure
...
...
config.status: creating src/python-lxc/setup.py
config.status: creating src/lua-lxc/Makefile
config.status: executing depfiles commands
</span><span style="color: lime; font-size: medium;">config.status: executing default commands
</span><span style="color: white; font-size: medium;">----------------------------
Environment:
 - compiler: gcc
 - distribution: <a href="http://www.hackthesec.co.in/search/label/Centos" target="_blank">centos</a>
</span><span style="color: lime; font-size: medium;"> - init script type(s): sysvinit
</span><span style="color: white; font-size: medium;"> - rpath: no
 - GnuTLS: no
</span><span style="color: lime; font-size: medium;"> - Bash integration: yes
</span><span style="color: white; font-size: medium;">Security features:
 - Apparmor: no
</span><span style="color: lime; font-size: medium;"> - Linux capabilities: yes
</span><span style="color: white; font-size: medium;"> - seccomp: no
 - SELinux: no
 - cgmanager: no
Bindings:
 - lua: no
 - python3: no
Documentation:
 - examples: yes
 - API documentation: yes
 - user documentation: no
Debugging:
 - tests: no
</span><span style="color: lime; font-size: medium;"> - mutex debugging: no
</span><span style="color: lime; font-size: medium;">Paths:
</span><span style="color: lime; font-size: medium;"> - Logs in configpath: no</span></span></pre>
<div style="background-color: white; color: #111111; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 16px; line-height: 26px; margin-bottom: 26px; padding: 0px; word-wrap: break-word;">
The following are the last few lines from the output for the above make command.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: lime; font-size: medium;">make</span><span style="color: white; font-size: medium;">
...
Building full member lists recursively...
Adding members to member groups.
...
</span><span style="color: lime; font-size: medium;">Generating style sheet...
</span><span style="color: white; font-size: medium;">Generating index page...
</span><span style="color: lime; font-size: medium;">Generating page index...
</span><span style="color: white; font-size: medium;">Generating example documentation...
Generating file sources...
</span><span style="color: lime; font-size: medium;">Generating code for file /usr/save/lxc-1.1.5/src/lxc/attach_options.h...
</span><span style="color: white; font-size: medium;">Generating code for file /usr/save/lxc-1.1.5/src/lxc/lxccontainer.h...
Generating code for file /usr/save/lxc-1.1.5/src/lxc/lxclock.h...
</span><span style="color: lime; font-size: medium;">Generating file documentation...
Generating docs for file /usr/save/lxc-1.1.5/src/lxc/attach_options.h...</span><span style="color: white; font-size: medium;">
...
Generating file member index...
make[2]: Leaving directory `/usr/save/lxc-1.1.5/doc/api'
make[2]: Entering directory `/usr/save/lxc-1.1.5/doc'
...
</span><span style="color: lime; font-size: medium;">Making all in hooks
make[1]: Entering directory `/usr/save/lxc-1.1.5/hooks'
make[1]: Nothing to be done for `all'</span><span style="color: white; font-size: medium;">.
...</span></span></pre>
<div style="background-color: white; color: #111111; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 16px; line-height: 26px; margin-bottom: 26px; padding: 0px; word-wrap: break-word;">
The following are the last few lines from the output for the above make install command.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: lime; font-size: medium;">make install</span><span style="color: white; font-size: medium;">
...
Making install in hooks
make[1]: Entering directory `/usr/save/lxc-1.1.5/hooks'
 /bin/mkdir -p '/usr/local/share/lxc/hooks'
</span><span style="color: lime; font-size: medium;"> /usr/bin/install -c clonehostname mountecryptfsroot ubuntu-cloud-prep squid-deb-proxy-client '/usr/local/share/lxc/hooks'
</span><span style="color: white; font-size: medium;">...
/bin/mkdir -p /usr/local/var/lib/lxc
/bin/mkdir -p /usr/local/var/cache/lxc
 /bin/mkdir -p '/usr/local/lib/pkgconfig'
</span><span style="color: lime; font-size: medium;"> /usr/bin/install -c -m 644 lxc.pc '/usr/local/lib/pkgconfig'
</span><span style="color: white; font-size: medium;">...</span></span></pre>
<h3 style="background-color: white; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 1.286em; line-height: 1.222em; margin: 1.833em 0px 0.611em; padding: 0px; word-wrap: break-word;">
<u><span style="color: #0b5394;">5. Create Soft Link for LXC Shared Libraries</span></u></h3>
<div style="background-color: white; color: #111111; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 16px; line-height: 26px; margin-bottom: 26px; padding: 0px; word-wrap: break-word;">
Execute lxc-info to verify that the LXC is installed successfully. If everything is installed properly, we’ll see a message saying that the give container name (for example, test) doesn’t exist. We have not created any container at this stage. We just want to make sure this command is not throwing any shared library related errors.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: lime; font-size: medium;">lxc-info --name test</span><span style="color: white; font-size: medium;">
test doesn't exist</span></span></pre>
<div style="background-color: white; color: #111111; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 16px; line-height: 26px; margin-bottom: 26px; padding: 0px; word-wrap: break-word;">
Depending on how things on configured on your system, you might also get the following liblxc.so.1 library related error message.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: white; font-size: medium;">lxc-info --name test
</span><span style="color: lime; font-size: medium;">lxc-info: error while loading shared libraries: liblxc.so.1: cannot open shared object file: No such file or directory</span></span></pre>
<div style="background-color: white; color: #111111; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 16px; line-height: 26px; margin-bottom: 26px; padding: 0px; word-wrap: break-word;">
In this case, to fix it, create a link called libxc.so.1 as shown below, which will point to the correct version of the liblxc.so.x.x.x file.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: white; font-size: medium;">ln -s </span><span style="color: lime; font-size: medium;">/usr/local/lib/liblxc.so.1.1.5 /lib64/liblxc.so.1</span><span style="color: white; font-size: medium;">

</span></span><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: white; font-size: medium;">ls -l /lib64/liblxc.so.1
</span><span style="color: lime; font-size: medium;">lrwxrwxrwx. 1 root root 30 Jan 20 09:17 /lib64/liblxc.so.1 -> /usr/local/lib/liblxc.so.1.1.5</span></span></pre>
<h3 style="background-color: white; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 1.286em; line-height: 1.222em; margin: 1.833em 0px 0.611em; padding: 0px; word-wrap: break-word;">
<u><span style="color: #0b5394;">6. Verify LXC Setup and Configuration</span></u></h3>
<div style="background-color: white; color: #111111; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 16px; line-height: 26px; margin-bottom: 26px; padding: 0px; word-wrap: break-word;">
Next, you can also execute the lxc-checkconfig to verify that your lxc environment is setup correctly.</div>
<div style="background-color: white; color: #111111; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 16px; line-height: 26px; margin-bottom: 26px; padding: 0px; word-wrap: break-word;">
The following will have output in four different sections: 1) Namespaces, 2) Control Groups 3) Misc and 4) Checkpoint/Restore. Partial output is shown below.</div>
<pre style="background: none 0px 0px repeat scroll rgb(60, 60, 60); border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium; line-height: 1.3em;">root@hackthesec:~$ </span><span style="background-color: transparent; line-height: 15.6px;"><span style="color: lime; font-size: medium;">lxc-checkconfig</span><span style="color: white; font-size: medium;">
Kernel configuration not found at /proc/config.gz; searching...
</span><span style="color: lime; font-size: medium;">Kernel configuration found at /boot/config-2.6.32-431.el6.x86_64
</span><span style="color: white; font-size: medium;">--- Namespaces ---
Namespaces: enabled
Utsname namespace: enabled
Ipc namespace: enabled
Pid namespace: enabled
</span><span style="color: lime; font-size: medium;">User namespace: enabled
</span><span style="color: white; font-size: medium;">Network namespace: enabled
</span><span style="color: lime; font-size: medium;">Multiple /dev/pts instances: enabled
</span><span style="color: white; font-size: medium;">--- Control groups ---
Cgroup: enabled
Cgroup namespace: enabled
Cgroup device: enabled
Cgroup sched: enabled
Cgroup cpu account: enabled
..
--- Misc ---
</span><span style="color: lime; font-size: medium;">Veth pair device: enabled
</span><span style="color: white; font-size: medium;">Macvlan: enabled
Vlan: enabled
Bridges: enabled
</span><span style="color: lime; font-size: medium;">Advanced netfilter: enabled
</span><span style="color: white; font-size: medium;">..
</span><span style="color: lime; font-size: medium;">--- Checkpoint/Restore ---
CONFIG_EVENTFD: enabled
CONFIG_EPOLL: enabled</span><span style="color: white; font-size: medium;">
..
Note : Before booting a new kernel, you can check its configuration
</span><span style="color: lime; font-size: medium;">usage : CONFIG=/path/to/config /usr/local/bin/lxc-checkconfig</span></span></pre>
<div style="background-color: white; color: #111111; font-family: Georgia, 'Times New Roman', Times, serif; font-size: 16px; line-height: 26px; margin-bottom: 26px; padding: 0px; word-wrap: break-word;">
If everything is configured properly on your system, in the above output, all of the options in the above groups should say “enabled”.</div>
<div style="background-color: white; margin-bottom: 26px; padding: 0px; word-wrap: break-word;">
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How to Install and Setup LXC Linux Containers on CentOS / RHEL / Ubuntu

Install and Setup LXC Linux Containers on CentOS / RHEL / Ubuntu LXC stands for Linux Containers. Linux containers are light-weight ...

How to Install VirtualBox on OpenSUSE 13.1 & 13.2

<div dir="ltr" style="text-align: left;" trbidi="on">
<h1 class="post-title" style="background-color: white; border: 0px; font-family: 'PT Serif', serif; font-size: 38px; font-stretch: inherit; font-weight: 400; letter-spacing: -1px; line-height: 1.3em; margin: 0px 0px 10px; padding: 0px; vertical-align: baseline; word-wrap: break-word;">
<span style="color: #990000;"><u><i>VirtualBox on OpenSUSE 13.1 & 13.2</i></u></span></h1>
<div>
<div style="background-color: white; border: 0px; font-size: 16px; font-stretch: inherit; line-height: 22.4px; margin-bottom: 1em; padding: 0px; text-align: justify; vertical-align: baseline;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjWF4doyMGSKTabq9yA-gyr_x3SEcBwcWRJr4csb5HrHrvAoau1A8y-vNO5HTTjq1KKPXPeSzW9g5GdLcka_0g0yX0FIdYnnAZuLHrB6OBQa4vXieA_w6qlQkM5P_JzsxxG8sn9J5ir494v/s1600/vbox_www.hackthesec.co.in.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjWF4doyMGSKTabq9yA-gyr_x3SEcBwcWRJr4csb5HrHrvAoau1A8y-vNO5HTTjq1KKPXPeSzW9g5GdLcka_0g0yX0FIdYnnAZuLHrB6OBQa4vXieA_w6qlQkM5P_JzsxxG8sn9J5ir494v/s1600/vbox_www.hackthesec.co.in.png" /></a><span style="font-family: "georgia" , "times new roman" , serif;"><b>VirtualBox </b>is the <b>virtualization </b>software used at desktop level in linux like operating system .It allows us to install and run multiple Virtual Machines ( VM) at the same time. In this article we will install <b>VirtualBox-4.3</b> on <b>OpenSUSE </b>13.1 / 13.2.</span></div>
<div style="background-color: white; border: 0px; font-size: 16px; font-stretch: inherit; line-height: 22.4px; margin-bottom: 1em; padding: 0px; text-align: justify; vertical-align: baseline;">
<span style="font-family: "georgia" , "times new roman" , serif;"><br /></span></div>
<h5 style="background-color: white; border: 0px; font-family: 'PT Serif', serif; font-size: 20px; font-stretch: inherit; line-height: 1.3em; margin: 0px 0px 14px; padding: 0px; vertical-align: baseline; word-wrap: break-word;">
<span style="color: #0b5394;">Step:1 Enable VirtualBox Repository</span></h5>
<div style="background-color: white; border: 0px; font-size: 16px; font-stretch: inherit; line-height: 22.4px; margin-bottom: 1em; padding: 0px; vertical-align: baseline;">
<span style="font-family: "georgia" , "times new roman" , serif;">Open the terminal and enable the virtualbox repository because its packages are not available in the default opensuse repository</span></div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="color: white; font-size: large;">linux-</span><span style="color: white; font-size: large;">hackthesec</span><span style="font-size: large;"><span style="color: white;">:~ # cd /etc/</span><span style="color: lime;">zypp/repos.d/</span></span><span style="color: white;">
</span><span style="color: white; font-size: large;">linux-</span><span style="color: white; font-size: large;">hackthesec</span><span style="color: white; font-size: large;">:/etc/zypp/repos.d # wget http://download.virtualbox.org/virtualbox/rpm/opensuse/12.3/</span><span style="font-size: large;"><span style="color: lime;">virtualbox.repo</span></span></pre>
<h5 style="background-color: white; border: 0px; font-family: 'PT Serif', serif; font-size: 20px; font-stretch: inherit; line-height: 1.3em; margin: 0px 0px 14px; padding: 0px; vertical-align: baseline; word-wrap: break-word;">
<span style="color: #0b5394;">Step:2 Refresh the repository using below Command</span></h5>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;"><span style="color: white;">linux-hackthesec:~ # </span><span style="color: lime;">zypper </span><span style="color: white;">refresh</span></span></pre>
<div style="background-color: white; border: 0px; font-size: 16px; font-stretch: inherit; line-height: 22.4px; margin-bottom: 1em; padding: 0px; vertical-align: baseline;">
<span style="font-family: "georgia" , "times new roman" , serif;">Before starting installation , please make sure following packages are install , if not then use the below command :</span></div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-family: Monaco, 'Courier New', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace; font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-size: large;"><span style="color: white;">linux-hackthesec:~ # zypper install gcc make automake autoconf </span><span style="color: lime;">kernel-source kernel-syms</span></span></pre>
<h5 style="background-color: white; border: 0px; font-family: 'PT Serif', serif; font-size: 20px; font-stretch: inherit; line-height: 1.3em; margin: 0px 0px 14px; padding: 0px; vertical-align: baseline; word-wrap: break-word;">
<span style="color: #0b5394;">Step:3 Install Virtualbox-4.3 using below zypper command</span></h5>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="color: white; font-family: "courier new" , "courier" , monospace; font-size: large;">linux-</span><span style="color: white; font-family: "monaco" , "courier new" , "dejavu sans mono" , "bitstream vera sans mono" , monospace; font-size: large;">hackthesec</span><span style="font-family: "courier new" , "courier" , monospace; font-size: large;"><span style="color: white;">:~ # </span><span style="color: lime;">zypper </span><span style="color: white;">install VirtualBox-4.3</span></span></pre>
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<span style="font-family: "georgia" , "times new roman" , serif;">Apart from the <b>Zypper </b>Command We can also install Virtualbox package using <b>Yast2 </b>, example is shown below :</span></div>
<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="color: white; font-family: "courier new" , "courier" , monospace; font-size: large;">linux-</span><span style="color: white; font-family: "monaco" , "courier new" , "dejavu sans mono" , "bitstream vera sans mono" , monospace; font-size: large;">hackthesec</span><span style="font-family: "courier new" , "courier" , monospace; font-size: large;"><span style="color: white;">:~ # </span><span style="color: lime;">yast2</span></span></pre>
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<span style="line-height: 22.4px;"><span style="font-family: "georgia" , "times new roman" , serif;">Select <b>VirtualBox-4.3</b> and mark for installation.</span></span></div>
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<span style="line-height: 22.4px;"><span style="font-family: "georgia" , "times new roman" , serif;">Click on Apply</span></span></div>
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<span style="color: #0b5394;">Step:4 Now Access the VirtualBox</span></h5>
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<span style="font-family: "georgia" , "times new roman" , serif;">Click on the <b>Virtualbox </b>Icon.</span></div>
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<span style="font-family: "georgia" , "times new roman" , serif;"><span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: 600; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;"><span style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;"><span style="color: #0b5394;">Troubleshooting </span></span><span style="border: 0px; color: #333399; font-size: inherit; font-stretch: inherit; font-style: inherit; font-variant: inherit; font-weight: inherit; line-height: inherit; margin: 0px; padding: 0px; vertical-align: baseline;">:</span></span> In my case when i started Virtualbox, i was getting below error message :</span></div>
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<span style="font-family: "georgia" , "times new roman" , serif;">To resolve this problem i have upgraded my Current Kernel version and then execute below command :</span></div>
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<pre style="background: rgb(54, 54, 54); border-radius: 7px; border: 1px solid rgb(221, 221, 221); font-stretch: inherit; line-height: 19px; margin-bottom: 15px; margin-top: 15px; overflow-x: auto; overflow-y: hidden; padding: 18px 20px; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: "courier new" , "courier" , monospace; font-size: large;"><span style="color: white;">linux-hackthesec:~ # /etc/init.d/</span><span style="color: lime;">vboxdrv </span><span style="color: white;">setup
</span><span style="color: lime;">Stopping </span><span style="color: white;">VirtualBox kernel modules          done
Recompiling VirtualBox </span><span style="color: lime;">kernel modules       done</span><span style="color: white;">
</span><span style="color: lime;">Starting VirtualBox kernel modules          done</span></span><span style="color: white; font-family: "monaco" , "courier new" , "dejavu sans mono" , "bitstream vera sans mono" , monospace; font-size: 12px;">
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How to Install VirtualBox on OpenSUSE 13.1 & 13.2

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