Optimizing linux server

In order to optimize a linux server FOR hosting business (serving WEB and FTP only), I think we should turn off unnecessary applications/services.

My question is, which one of the services below can be turned off (because it's unnecessary) ?

For example, NFS, I think we dont need NFS right ? but I dont know which one.

Do we need apmd ? I tought it's only for laptop/notebook ? is it ?

S05kudzu
S14nfslock
S28autofs
S95atd
S17keytable
S97rhnsd
S20random
S56rawdevices
S90crond
S99local
S25netfs
S56xinetd
S90xfs
S13portmap
S26apmd
S95anacron

Thanks a lot for any input.

 

 

 

 

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