Timothy Murphy wrote: > I'm running CentOS-6 on an HP MicroServer (since this morning) > and I'd like to open an non-standard port, > for use on a laptop attached to the internet through the server. > > Do I have to explicitly add an iptables rule? > If so, and I want to open (say) udp port 500 , > what command should I give? > > I've always used shorewall in the past, > and will probably do so now if the default firewall is difficult to use. > But I thought I would try it first as an experiment. > > My recollection is that in old versions of CentOS > one could non-standard ports through system-config-firewall ; > but it seems that now this can only be used for standard ports; > > I looked at <http://wiki.centos.org/HowTos/Network/IPTables> > but didn't find it very enlightening. > > Any advice or suggestions gratefully received. > Use System -> Administration -> Firewall from GUI. Or "/usr/bin/system-config-firewall" from SSH/console TUI. Ljubomir