[CentOS] Processes to disable

[Bogdan Nicolescu]

----- Original Message ----
> From: David Lemcoe <forum at lemcoe.com>
> To: CentOS mailing list <centos at centos.org>
> Sent: Thursday, April 9, 2009 10:39:40 AM
> Subject: Re: [CentOS] Processes to disable
> 
> Thanks for the tool. I have two servers, a just Apache/FTP and a
> MySQL. I was told that I can basically have NOTHING except for the
> daemon running, but that seems a little extreme :)
> 
> Thanks again,
> 
> David
> 
> On 4/9/09, Hakan Koseoglu wrote:
> > Hi David,
> >
> > On Thu, Apr 9, 2009 at 3:21 PM, David Lemcoe wrote:
> >> I was told by some more-experienced Cent users that there are a bunch
> >> of processes I should kill and get out of the startup folder. He said
> >> that Cent (even with a small install) has a bunch of processes that
> >> really aren't needed and just burn up processes. Which ones should I
> >> get rid of for just a webserver? MySQL server?
> >
> > Depends on what you've installed and what you need.
> >
> > Serviceconf is a nice way of graphically checking what background and
> > on-demand services are configured for your system and what they are.
> >
> > If you don't need MySQL or Web servers, you should have not installed
> > them from start. :-)
> >
> > --
> > Hakan (m1fcj) - http://www.hititgunesi.org
> > _______________________________________________
> > CentOS mailing list
> > CentOS at centos.org
> > http://lists.centos.org/mailman/listinfo/centos
> >
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See http://www.scribd.com/doc/3000159/RHELCentOSMinimalServicesSetup

>From the author's short list...
anacron and crond - "schedulers", used among other things for cleaning up logs
iptables - firewall
kudzu - hardware detection and configuration
network is what it says (if disabled you will not have network access)
sendmail is what it says
sshd - secure shell deamon
syslog - logs various system messages 

To list, enable, and disable services use chkconfig (from a terminal)
(you need to have root access)

http://www.linuxcommand.org/man_pages/chkconfig8.html 

to see all services for all levels type:
chkconfig --list 

Level 3 is for terminal mode, Level 5 is for GUI mode

to disable/enable a service:
chkconfig --level <levels> service-name off/on
i.e.
chkconfig --level 3 sshd off
Disables sshd for levels 3

chkconfig --level 35 sshd on
Enables sshd for level 3 and 5

To see the names of all the services installed on your system:
ls /etc/rc.d/init.d