Hack The Sec-Leading Resource Of Linux Tutorial: Web

<div dir="ltr" style="text-align: left;" trbidi="on">
<h1 class="post-title entry-title" style="background-color: white; border: 0px; font-family: Raleway, Arial, sans-serif; font-stretch: inherit; font-variant-numeric: inherit; letter-spacing: -1px; line-height: 1.3em; margin: 0px 0px 10px; padding: 0px; text-align: center; vertical-align: baseline; word-wrap: break-word;">
<span style="color: #0b5394; font-size: large;"><u>Enabling email authentication (SPF and DKIM)</u></span></h1>
<div style="text-align: left;">
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">cPanel is a <a href="http://www.hackthesec.co.in/search/label/Linux%20Tutorial">Linux-based</a> web hosting control panel that provides a graphical interface and automation tools designed to simplify the process of hosting a web site. cPanel utilizes a 3 tier structure that provides capabilities for administrators, resellers, and end-user website owners to control the various aspects of website and server administration through a standard web browser.</span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><br /></span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">In addition to the GUI, cPanel also has command line and API-based access that allows third party software vendors, web hosting organizations, and developers to automate standard system administration processes.</span></span></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAkJl6hJop48ubGUcohyjiYe7l2NlI19NrUPyIFcoYjEgQnYB2tzK_DfQWZN353P70nxXNTldw9E01BCXn92E0K9Zap-kxI-Sdghj0DDkLVz_5H7gNr55rPnszn138M4gEskTn7ScUsrxe/s1600/cpanel.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAkJl6hJop48ubGUcohyjiYe7l2NlI19NrUPyIFcoYjEgQnYB2tzK_DfQWZN353P70nxXNTldw9E01BCXn92E0K9Zap-kxI-Sdghj0DDkLVz_5H7gNr55rPnszn138M4gEskTn7ScUsrxe/s1600/cpanel.jpg" /></a></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><br /></span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">cPanel is designed to function either as a dedicated server or virtual private server. The latest cPanel version supports installation on CentOS, Red Hat Enterprise Linux (RHEL), and CloudLinux OS. cPanel 11.30 is the last major version to support FreeBSD.</span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><br /></span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Application-based support includes Apache, PHP, MySQL, PostgreSQL, Perl, and BIND (DNS). Email based support includes POP3, IMAP, and SMTP services. cPanel is accessed via https on port 2083</span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><br /></span></span></div>
<div>
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"></span></span><br />
<div>
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><b><u><span style="color: #0b5394;">cPanel script to enable SPF via commandline:</span></u></b></span></span></div>
<span style="font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">
<div style="clear: both; margin: 10px 0;">
<center>
<script async="" src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>

<ins class="adsbygoogle" data-ad-client="ca-pub-5744890361111211" data-ad-slot="1658755283" style="display: inline-block; height: 15px; width: 728px;"></ins></center>
</div>
<div style="color: #333333;">
Syntax</div>
</span></span></div>
<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;"># /usr/local/cpanel/bin/spf_installer $username</span></span></pre>
</div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Where, $username is the cPanel user name</span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif; font-size: 15px;"><br /></span></div>
<div>
<span style="font-family: "verdana" , "geneva" , sans-serif; font-size: 15px;"><b><u><span style="color: #0b5394;">cPanel script to enable DKIM via commandline:</span></u></b></span><span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"></span><br />
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><br /></span></span></div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;">
<div>
<span style="font-size: 15px;">Syntax</span></div>
</span></div>
<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;">#  /usr/local/cpanel/bin/dkim_keys_install $username</span></span></pre>
</div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;">Replace $username with the actual cPanel username.</span></span></div>
<div>
<span style="color: #333333; font-family: "verdana" , "geneva" , sans-serif;"><span style="font-size: 15px;"><br /></span></span></div>
<div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px;">
The above commands will help you to enable email authentications for single cPanel users. If you have hundreds of accounts and you want to enable SPF and DKIM for all accounts, please follow the simple for loop.</div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px;">
<br /></div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px;">
Here we can get the cPanel usernames from "/var/cpanel/users". Then give that to installations scripts. Please see the sample script below:</div>
<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;">for username in `ls -A /var/cpanel/users` ; do
       /usr/local/cpanel/bin/dkim_keys_install $username  &&
       /usr/local/cpanel/bin/spf_installer $username ; done</span></span></pre>
</div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px;">
Thanks for support</div>
</div>
<div style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px;">
<a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></div>
</div>
</div>