1. What's the output of $ ls -l /sbin/pfctl ?
-r-xr-xr-x 1 root bin 528664 Aug 17 2011 /sbin/pfctl
2. What's the output of $ sysctl kern.version ?
kern.version=OpenBSD 5.0 (GENERIC.MP) #63: Wed Aug 17 10:14:30 MDT 2011
deraadt@amd64.openbsd.org:/usr/src/s...ile/GENERIC.MP