Table of Contents
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
