Slow servers
Real fixes for common problems: connection errors, boot issues, slow servers, email delivery and website errors.
- Disk full: find what fills it and free space safely A full disk stops databases, websites and even SSH logins. Find what uses the space, free it safely and stop it from filling up again. Beginner 12 min
- High CPU or memory usage: find the cause and fix it A slow server is busy with something. Find out what, decide whether to fix the software or give it more resources, and confirm the result. Intermediate 15 min