====== Diagnosis ======

  * [[DNS]]
  * [[Network Diagnosis]]
  * [[PHP Errors]]
  * [[Slow Website]]
  * [[SSH Diagnosis]]
==== Server Diagnosis ====

== System Access ==

If a server is having issues and you can still access it through one or more services (SSH, MySQL, HTTPD, etc.), then check these areas:

  * monit: What is the system load?  What is the memory usage?
  * collectd: Are there any trends of increasing loads or memory usage?
  * System, Apache, MySQL logs: check for anomalies

== No Access ==

If you can't access a server through any services, then run these tests:

  * Check DNS records to see if they are resolving correctly
  * Log into web hosting control panel to see status

==== Todo ====

  * pidstat