few scripting questions

[Bob Chiodini]

On Wed, 2005-04-13 at 19:26 +0200, Alexander Dalloz wrote:
> Am Mi, den 13.04.2005 schrieb rado um 18:55:
> 
> > 1. when syncing mail from one machine to another, right now I shut down
> > sendmail copy the mail over then service sendmail start. Wondering if I
> > just couldn't shut down port 25? If so how to shut down and open ports
> > in a script?
> 
> close: /sbin/iptables -I INPUT -p tcp -m tcp --dport 25 -j REJECT
> --reject-with icmp-port-unreachable
> open: /sbin/iptables -D INPUT -p tcp -m tcp --dport 25 -j REJECT
> --reject-with icmp-port-unreachable
> 
> > 2. Is there anyway to log out/logon users in a script?
> 
> Which users? You could kill the shells of logged in users.
> 
> > John Rose
> 
> Alexander
> 
> 
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Killing X will log off the local X user.  Consequences to him may be
extreme, however.

Bob...