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RE: SYN attacks

From: Mark Picone (wts666iprimus.com.au)
Date: Tue Apr 06 2004 - 19:56:33 CDT


You could try adding this to /etc/sysctl.conf

sysctl net.inet.tcp.drop_synfin=1

-----Original Message-----
From: owner-freebsd-securityfreebsd.org
[mailto:owner-freebsd-securityfreebsd.org] On Behalf Of Spades
Sent: Wednesday, 7 April 2004 3:02 am
To: freebsd-questionsfreebsd.org
Cc: freebsd-securityfreebsd.org
Subject: SYN attacks

Heya,

FREEBSD 4.9-STABLE

Is there anyway to block SYN attacks and prevent it from bring down my
server?

Its been attacking for sometime.
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