Linux Redhat 7.1/7.3 Setup menu

[Ryanblakdeth]

I have installed Linux RedHat 7.1 and 7.3 with my firewall settings set to "no firewall" so that all incoming traffic will be accepted. However, after both installations were complete, the firewall settings are set to "high" security, allowing no incoming connections. When I change the firewall settings in the Setup menu (and every other item for that matter - Network configuration, system services, etc.), the changes do not take effect at all. I am using a D-Link DI-604 router with DHCP enabled and have tried setting the DMZ to the linux machine and to other machines with this same result. Any help and/or ideas on why I cannot change any options in the Setup menu are highly appreciated.

(I need to get rid of the firewall to set up FTP and Telnet servers.)

- Ryan

[baz2]

Not having done what you are trying to do, I cannot offer any tips from experience. But firewall settings are contained in ipchains. The first thing I would do if I were you (assuming you haven't already) is read Chapter 7 (http://www.redhat.com/docs/manuals/linux/RHL-7.3-Manual/custom-guide/ch-gnomelokkit.html) of the Red Hat Linux Customization Guide. There you will find help on using GNOME Lokkit to reconfigure your firewall settings.

If this doesn't help, then maybe there is something more that has to be done to set up Linux to work behind a router. There are some details about doing that here (http://www.draconpern.com/Linux/dsl_masq_redhat7.html).

[pcghost]

Remember, Red Hat 7.3 ships with both ipchains and iptables firewalls. They are started at boot by default. If you shut down ipchains make sure you shut down iptables as well...

chkconfig ipchains off
chkconfig iptables off
:p