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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CPanel has included support for MySQL 5 in all its latest releases - 10.8.2-xxx - (Stable/Release/Current). I find this very cool and it is a big difference in trying to get MySQL4 to run on Plesk for example. Anyway the upgrade process is very simple, and probably no one will need any additional information to complete this safely. I just wanted to point out some of the problems you might encounter in performing this upgrade.
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This is just a short note showing how you can add a range of IPs in Cpanel/WHM accompanying my previous post “Linux Tips: How to quickly bind a range of IPs on RedHat based systems“.
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After a long time being supported only as beta (and this by CPanel meaning no support at all), CPanel is finally offering full support for PHP5 on all its latest versions - 10.8.2 - (Stable/Release/Current). I have been using PHP5 on some CPanel servers for a long time without any problems, but now probably they will push towards making this the default choice. Still PHP 4.4.2 is the default version that CPanel will install, but I assume that this will change soon. So it might be a good idea to try to upgrade to PHP5 (or start updating your applications to work on PHP5 as this will soon be needed).

We can choose from various versions of PHP5: 5.0.4, 5.0.5, 5.1.2, 5.1.4… Hmm I feel that they could have added some more :-). My choice was (as I assume most of the peoples will do) the latest version available PHP 5.1.4… Anyway I have not seen any problems on the servers I am using php5 (centos/rhel) besides some application incompatibilities that are being worked on by the developers.

To upgrade your CPanel to PHP5 just use the regular buildapache method. For more details you can see my previous post: “Upgrade php on CPanel/WHM”.