cPanel Out of Memory Errors

I’ve seen several features of cPanel appear to malfunction, and upon reviewing /usr/local/cpanel/logs/error_log, I’d see something similar to this: Out of memory during request for 2180 bytes, total sbrk() is 130234368 bytes! Common places this has been known to occur: In Webmail (Horde and Roundcube) when opening large attachments Using cPanel’s perl module installer You…

Read more

Installing DomainKeys and SPF Records

DomainKeys (DKIM) and SPF records are becoming a common, and annoying, demand among email providers, mainly Yahoo and Hotmail. In short, both are methods of email authentication designed to verify email integrity, by linking a sender to a specific server or hostname. In other words, DomainKeys and SPF records specify what servers can send email…

Read more

The cPanel Backup System

Us cPanel system admins pity those who neglect to back up their sites and then blame their hosts when something goes awry…especially when cPanel makes it so damn easy to back up your entire account in just a few clicks — And we’re going to tell you how to do it. Of course, we’re not…

Read more

Adding IP Addresses to a Server

In a hosted multi-site environment you may find yourself needing to add multiple IP addresses to a server. Luckily, cPanel makes it very easy to add IP addresses. This article will go over adding IP addresses to standalone servers, both through WHM and from command line on a cPanel server.   You probably already know…

Read more

Upgrading or Downgrading MySQL

Update 2/15/14:  These instructions have been updated for cPanel 11.36+. You can easily change the major version of MySQL running on your server, keeping in mind that the actual version will be dependent on what cPanel has released in their repository and what cPanel version you’re running.  For example, if you’re running cPanel 11.40, you…

Read more

Log in