Video webinar here: http://videos.cpanel.net/cpanel-whm-admin-essentials/
cPanel
cPanel & WHM Admin Essentials
Log file to look for PHP errors
Path: /usr/local/apache/logs/error_log
tail -f /usr/local/apache/logs/error_log
Part 1: How I Built a cPanel Hosting Environment on Amazon AWS
Link: http://blog.cpanel.net/part-1-how-i-built-a-cpanel-hosting-environment-on-amazon-aws/
Part 2: How I Built a cPanel Hosting Environment on Amazon AWS
Link: http://blog.cpanel.net/part-2-how-i-built-a-cpanel-hosting-environment-on-amazon-aws/
Part 3: How I Built a cPanel Hosting Environment on Amazon AWS
Link: http://blog.cpanel.net/part-3-how-i-built-a-cpanel-hosting-environment-on-amazon-aws/
Setting up Nameservers in a cPanel & WHM Environment
Link: http://etwiki.cpanel.net/twiki/pub/AllDocumentation/WHMDocs/DNSNewbieGuide.pdf