If you use the pf OS fingerprinting feature you want to apply the following diff to your system or -current OpenBSD boxes will not be identified as beeing OpenBSD.
To apply the patch just use: cd /etc patch < this_mail pfctl -f /etc/pf.conf -- :wq Claudio Index: pf.os =================================================================== RCS file: /cvs/src/etc/pf.os,v retrieving revision 1.22 diff -u -p -r1.22 pf.os --- pf.os 8 Aug 2009 09:24:51 -0000 1.22 +++ pf.os 1 Oct 2010 14:11:04 -0000 @@ -298,12 +298,15 @@ S22:64:1:52:M*,N,N,S,N,W0: Linux:2.2:ts: # ----------------- OpenBSD ----------------- 16384:64:0:60:M*,N,W0,N,N,T: OpenBSD:2.6::NetBSD 1.3 (or OpenBSD 2.6) -16384:64:1:64:M*,N,N,S,N,W0,N,N,T: OpenBSD:3.0-4.0::OpenBSD 3.0-4.0 -16384:64:0:64:M*,N,N,S,N,W0,N,N,T: OpenBSD:3.0-4.0:no-df:OpenBSD 3.0-4.0 (scrub no-df) +16384:64:1:64:M*,N,N,S,N,W0,N,N,T: OpenBSD:3.0-4.8::OpenBSD 3.0-4.8 +16384:64:0:64:M*,N,N,S,N,W0,N,N,T: OpenBSD:3.0-4.8:no-df:OpenBSD 3.0-4.8 (scrub no-df) 57344:64:1:64:M*,N,N,S,N,W0,N,N,T: OpenBSD:3.3-4.0::OpenBSD 3.3-4.0 57344:64:0:64:M*,N,N,S,N,W0,N,N,T: OpenBSD:3.3-4.0:no-df:OpenBSD 3.3-4.0 (scrub no-df) 65535:64:1:64:M*,N,N,S,N,W0,N,N,T: OpenBSD:3.0-4.0:opera:OpenBSD 3.0-4.0 (Opera) + +16384:64:1:64:M*,N,N,S,N,W3,N,N,T: OpenBSD:4.9::OpenBSD 4.9 +16384:64:0:64:M*,N,N,S,N,W3,N,N,T: OpenBSD:4.9:no-df:OpenBSD 4.9 (scrub no-df) # ----------------- Solaris -----------------
