System Tuning Info for Linux Servers

NOTE: Most of the info on this page is about 3 years, and one or two kernel versions out of date.

This page is about optimizing and tuning Linux based systems for server oriented tasks. Most of the info presented here I’ve used myself, and have found it to be beneficial. I’ve tried to avoid the well tread ground (hdparm, turning off hostname lookups in apache, etc) as that info is easy to find elsewhere.
Some cases where you might want to apply some of benchmarking, high traffic web sites, or in case of any load spike (say, a web transfered virus is pegging your servers with bogus requests)

1. Disk Tuning
2. File system Tuning
3. SCSI Tuning
4. Disk I/O Elevators
5. Network Interface Tuning
6. TCP Tuning
7. File limits
8. Process limits
9. Threads
10. NFS
11. Apache and other web servers
12. Samba
13. Openldap tuning
14. Sys V shm
15. Ptys and ttys
16. Benchmarks
17. System Monitoring
18. Utilities
19. System Tuning Links
20. Music
21. Thanks
22. TODO
23. Changes

(people.redhat.com)