pf is the OpenBSD Packet Filter, a feature-rich IP-layer firewall used on FreeBSD, NetBSD, and Mac OS X, as well as in the pfSense open-source firewall appliance software.

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Disable ALTQ for internal network traffic

I currently have a FreeBSD 8.2 media server set up on my LAN that I use to stream my music from. I also have an SSH login that I use to do file transfers to and from this server remotely. I would ...
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FreeBSD machine not responding to first few packets of a stream

I have two machines running as reverse proxy caches/load balancers in front of a site I admin. Recently at peak times I've been seeing a problem where the first few packets from any stream of packets ...
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Using NTPD on OpenBSD to get time from Linux using portforwarding

This is a rehash of another question, now that I understand things a bit better. I have the following network set up: NTP 10.21.3.169 | \______________ | \ ...
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carp versus proxy arp

Currently I have a redundant pfSense firewall system set up for our corporate server farm. The main router IPs are sharing an IP address through Carp. Our two public /27 networks are assigned as ...
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pf firewall server configuration

I am trying to configure a fire wall for a server that host http, smtp and ssh on a custom port. When I initialize pf, I get an error at the command line: No ALTQ support in kernel and my ssh ...