davesdatasystems wrote:This may be a stupid question.
If i go into the firewall on OpenSUSE and stop all services and add only the external ip addresses i need to. Do i also need to do the internal network ip addresses?
The answer to this question depends on your overall configuration and differs mainly based on whether you have a public AND private IP (both) for this server or if the server works with a single IP.
IF you have both public and private IPs (two nic cards, of course), you can set the internal NIC card in the yast firewall to "internal" and unprotected. Then you do not need to add your local IPs to the exception list.
yast firewall -> Interfaces -> {choose NIC} -> Interface Zone (Internal for the local/private network and External for the public network)
If you use this method, do NOT check the "Protect firewall from internal zone" box in "Allowed Services".
IF you have only a private IP, you need to put your internal network's range in the custom list to allow them past the firewall. Technically this is a violation since a hacker could spoof private IPs through your firewall, but I've never seen someone actually get hacked this way (although I've seen many attempts).
IF you have only a public IP, you will NOT be allowing your private IPs through the firewall as they do not access the server through a private IP at all.
We recommend Dynamic Good Guys firewall available Free at ViciWiki.com (because we wrote it). Makes some of this much easier to manage. Not yet upgraded for Vicibox 7.0.0.