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Message-ID: <20030813192301.31425.qmail@web80603.mail.yahoo.com>
From: geggam692000 at yahoo.com (D B)
Subject: OpenBSD protect windows update ?
wouldnt something like this work in pf to prevent a
syn flood ?
im no expert at this so feel free to modify
assuming xl0 is windows.update.com
and xl1 is an internal network that serves the updates
set loginterface xl0
set optimization aggressive
set block-policy drop
set limit { states 200000, frags 200000 }
scrub in on $ext_if all fragment reassemble random-id
nat on xl0 from xl1 to any -> xl0
rdr on xl0 proto tcp from any to any port 80 -> x11
port 8080
block in all port 80 flags FUP/FUP
block in quick on x10 proto {tcp,udp,icmp} from any to
any
"....if all else fails, get a bigger hammer."
D B
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