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Re: [PLUG] A simple question...
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Removing something from /etc/services will not turn that service off. The
/etc/services file is just a useful list of well-known port numbers. It
*is* used by the system but not for determining what services should be
running. It's use is best illustrated by a example. When I issue the
command "netstat -ta" I see the following line (among others):
tcp 0 0 *:ssh *:* LISTEN
Right away I know that this port is a ssh port. I have the following line
in /etc/services:
ssh 22/tcp
If I didn't have that line the output from the netstat command would have
been:
tcp 0 0 *:22 *:* LISTEN
Not all that informative unless I already know what port 22 is for.
On to what you want to do....
Most of the services that may be running will probably be in
/etc/inetd.conf. Just find the line in /etc/inetd.conf where a particular
service is configured and comment it out (or delete it if you're sure
you'll never want it again). Then issue the command "killall -HUP inetd".
This will restart the inetd and all the services you got rid of will be
gone. You might have services running that aren't listed in
/etc/inetd.conf. For example, the default slackware install starts a few
Sun RPC services that aren't listed in inetd.conf. You'll have to go
through your rc.* scripts to find out where they are being started and
remove them.
On Tue, 2 May 2000 DrexelDG@aol.com wrote:
> How do I make changes to the
>
> /etc/services file
>
> And reactive the changes WITHOUT rebooting my machine?
> :P
>
> Its along the lines of the firewall questions I had yesterday.... I want to
> deny some services to all uses by commenting them out in aforementioned
> file.... thanks for your help all.
>
> Anthony
>
> ______________________________________________________________________
> Philadelphia Linux Users Group - http://plug.nothinbut.net
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>
______________________________________________________________________
Philadelphia Linux Users Group - http://plug.nothinbut.net
Announcements - http://lists.nothinbut.net/mail/listinfo/plug-announce
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