**Questions about Unix / Linux Servers which are running Network Protocols or a Firewall –** Questions about firewalling or network protocols such as OSPF running on linux / unix servers... to qualify under this category: - The system *must not* be purpose-built by a vendor specifically for routing / switching / firewall purposes - The system *must not* have commercial support option for the required routing / switching / firewall function Example questions: - http://networkengineering.stackexchange.com/questions/2660/ospf-lsa-checksum-error - "How do I configure `iptables` to rewrite to a different TCP port?" I personally think these should go to serverfault, but I hope the community will vote on the matter. If you want things such as an IBM server running Quagga to be on-topic, upvote. If you agree with me, downvote :-)