A web and systems development journal (from a–too busy–web developer who does a lot of various IT work.)
source: http://forums.cpanel.net/showthread.php?t=50700&highlight=spamd+failed
wget http://layer1.cpanel.net/perl587installer.tar.gz
tar zxf perl587installer.tar.gz
cd perl587installer
./install
Fixing Log Rotation Problems
Since installing cpanel on some of our server, we noticed the logs in /usr/local/apache/logs/* growing out of control without ever being rotated. In /etc/logrotate.d the script called "httpd" is the reason why. Its totally wrong. Its looking for files located in /var/log/httpd/ and that is not where my log files are located. In fact, we dont even have files in this directory. Its completely empty.
hit control+c if script seems to stop working...
source: http://servermove.us/forum/viewtopic.php?t=251
Below are the Minimum Settings for proper security on your server. Failure to do so may (take this seriously) result in either server termination and/or support time charged to locate spamming issues and or hacks and kiddie scripts and hacks. This will also repair and keep repaired Fantastico if you are having the sourceguardian issue.
After a recent update to cPanel/WHM 9.9.9, outgoing emails stopped working on the RHE server (CentOS server wasn't affected).
Found this fix:
/scripts/exim4
/scripts/upcp
if that doesn't work... do
RESOLUTION: When mail should be delivered off-server for a domain, the domain should be:
1. Removed from /etc/localdomains
2. Added to /etc/remotedomains
optional: then run /scripts/mailperm
HOW-TO: Setting up Nameservers w/o Using Primary Server IP
There have been a number of threads with various bits and pieces of this process, but I haven't seen the entire thing in one place, so here goes. As always, modifying your server is done at your own risk and I accept no responsibility for anything that may happen.
you can disable exim's virus scanner in the following way:
-------
in /etc/exim.conf find #!!# message_filter renamed system_filter
system_filter = /etc/antivirus.exim
change it to
#!!# message_filter renamed system_filter
#system_filter = /etc/antivirus.exim
In this tutorial you will learn how to modify the Cpanel bandwidth exceeded page. This page is shown for clients automatically when they run out of bandwidth. Bandwidth counts are reset every month.
This guide will show you the ropes in how to setup cpanel nameservers and configure them properly so you can run ns1 and ns2.yoursite.com. Once your nameservers are setup clients can then use your own private nameservers for their domains.
1. Regiser your domain
Register the domain name you would like to use, you can register a domain here if you need one.This domain will be used as your nameservers - eg ns1.yourdomain.com and ns2.yourdomain.com
2. Additional IPs
Have 2 available IP addresses for your server that aren't in use.You will need to contact you provider to obtain these IP addreses.
3. Registering the Nameservers ÂÂ
Now login to your domain management page for the domain you registered and  register ns1.newdomain.com and ns2.newdomain.com as nameservers (registries normally have a special facility for doing that). The registry may also have a facility to propogate these nameservers around the foreign registries - if so, you should use this facility.
This guide assumes you already have Cpanel installed......this is meant to be a breif overview of some important features - not a complete WHM guide - that should be the responsibility of DarkOrb (www.cpanel.net)
If you do not have Cpanel installed please read the guide from DarkOrb - http://cpanel.net/docs.htm