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OpenBSD PF: rdr Outgoing port range
Name: Six Date: October 23, 2004 at 19:34:13 Pacific OS: OpenBSD 3.5 CPU/Ram: 500mhz/256mb
Comment:
This problem eludes me and google alike. I am new to PF and would like to forward the outgoing TCP & UDP port range 1024:65535 to any computer's port 53 for a DNS proxy. Using OpenBSD 3.5.
Name: iamc Date: October 24, 2004 at 05:02:51 Pacific
Reply:
You don't need to forward ports for outgoing traffic. Port forwarding is typically used with NAT, and for incoming traffic only.
Additionally, DNS does not use ephemeral ports. Just allow outgoing port 53. The method for doing this depends on what firewalling and/or NAT sofware you are running.
Also, why not just run a local caching DNS server? Seems like that would be a much simpler solution than whatever you have in mind.
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