If you are using CPanel 11 (the latest version available at this time) you can easily install ruby on your system using CPanel. Previously, you had to do this using operating system packages or manually from sources. Now, we can just run /scripts/installruby and this will do everything for us:

• download, compile and install ruby
• download and install RubyGems and some gems like rails and mongrel

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This post is also a response to a reader question: how to remove completely from his Cpanel server RVskin?

You just have to run the following command as root on the server:
perl /root/rvadmin/uninstall.pl
if for some reason RVskin was installed in a different location, change the path accordingly.

To complete this, restart cpanel:
/etc/rc.d/init.d/cpanel restart

This short post is a response to the question I received from one reader that wanted to know how to remove completely from his Cpanel server Fantastico.
Why would you want to do that? (assuming you have it already installed, it means you have a license also). Well, maybe the datacenter installed it by default and you don’t need Fantastico on your server; or maybe you just have a broken install and want to start fresh and remove it first. Regardless why you would want to do this, here are the steps you need to follow to completely remove Fantastico:

Login your server via SSH as root, and run the following commands:
rm -rf /var/netenberg/
rm -rf /usr/local/cpanel/whostmgr/docroot/cgi/fantastico/
rm -rf /usr/local/cpanel/3rdparty/fantastico*
rm -rf /usr/local/cpanel/base/frontend/*/fantastico
rm -f /usr/local/cpanel/base/frontend/x/cells/fantastico.html
rm -f /usr/local/cpanel/whostmgr/docroot/cgi/addon_fantastico.cgi

Note: if you have installed fantastico in a different location than the default folder: /var/netenberg/, then you should replace the first line accordingly (this might be /opt/netenberg/, or /home/netenberg/, etc.).

Once you have prepared your system as shown in my previous post “Preparing for CPanel 11” you can now safely proceed with the actual CPanel upgrade. This is done as any regular CPanel upgrade:
- you can run from the command line upcp:

/scripts/upcp

- or from inside WHM you run https://Server_IP_or_Hostname:2087/scripts2/upcpform

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As announced in CPanel’s ‘Release Schedule‘ by the 2nd of July all the branches including STABLE will be upgradeable to the new version 11. The second stage will be also finished by 10 July on all branches. This means that by that time if you have CPanel set to automatically update this will happen (or it might have already happened for you, depending on the release you are using – EDGE/CURRENT/RELEASE/STABLE):

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Traditionally CPanel has been using MBOX for the mailboxes storage and its internal pop3 server (cpop). It took them some time to realize that this was not the best solution and to offer a solution to migrate to MAILDIR and courier as the pop3/imap server. This has been available for a while (since Nov 2005) but it was never the default and because of that, not active on so many servers. The process to migrate to maildir is very simple, but it needs manual intervention and the sysadmin to know about this feature.

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CPanel v11 is the latest version of the popular commercial control panel that was released a few days ago. With this new release all their website was also redesigned and now it is looking more like a commercial site … The site is build around the release 11 showing the new features found in CPanel11:
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This is a well known issue, and it puzzles me that so many peoples don’t know about it. Still whenever I hear of peoples having random crashes with their systems, and they are running RHEL3, the first thing to check is if auditd is still enabled. Disabling auditd is the first things that I would recommend doing, and only after that if the problem still persists to look further into it. After recently doing this on several servers (you would think that most peoples took care of this by now, but it is not so…), I decided to post this in a separate blog entry so I can refer it, as a small step by step instructions anyone can do.
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CPanel is working to change its look. You can already see a new look on their site (www.cpanel.net) that replaces the old spartan site with a more pleasant and modern look. If you ask me, I never understood why they were not presenting a more professional web site, as if you compare their old site with Plesk website for example, you will see a huge difference. Still the plesk site is much better in my opinion from all points of view but it is nice to see that they are working on this…

Now the reason for this post is not to bring attention to the new look of CPanel site, but to announce the changes that we will soon see on the CPanel/WHM interface on our servers. They are working on a new theme called Evolution that you can already see it in action on CPanel demo site:
http://demo.cpanel.net
There are rumors that this will replace the old cpanel theme X, and many peoples will not be very happy if X will no longer be available in the next versions of CPanel. We can expect to see Evolution soon take over our CPanel in the next release.

If you are using CPanel you already know that its mail server (exim) uses a mechanism to allow pop-before-smtp relaying for sending outgoing emails. The IPs allowed to relay on the server are added dynamically to the file /etc/relayhosts by the antirelayd daemon.

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