[CentOS] Block network at logoff on workstation

nate centos at linuxpowered.net
Thu Feb 4 03:02:08 UTC 2010

David McGuffey wrote:

> I was wondering how to best block all network access to it when I log
> off...then unblock it when I log on. Changing iptables requires root
> access...as does running ifdown and ifup scripts.

You could use sudo to call them.. But I don't really understand your
concern, if your behind two pretty tight firewalls then there shouldn't
be anything to worry about. Myself I just have one firewall(OpenBSD),
no local firewall on my system(at home).

If your physically at the system(which I assume you are since your
blocking network access while your not logged on), perhaps simply
pulling the network cable out of the system is simplest.


More information about the CentOS mailing list