SYN attacks (correction)

[Mark Picone]

you should add
net.inet.tcp.drop_synfin=1 to /etc/sysctl.conf so it gets piped into sysctl
on boot
or just run sysctl net.inet.tcp.drop_synfin=1 as root

-----Original Message-----
From: owner-freebsd-security at freebsd.org
[mailto:owner-freebsd-security at freebsd.org] On Behalf Of Mark Picone
Sent: Wednesday, 7 April 2004 10:57 am
To: freebsd-security at freebsd.org
Subject: RE: SYN attacks

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

sysctl net.inet.tcp.drop_synfin=1

-----Original Message-----
From: owner-freebsd-security at freebsd.org
[mailto:owner-freebsd-security at freebsd.org] On Behalf Of Spades
Sent: Wednesday, 7 April 2004 3:02 am
To: freebsd-questions at freebsd.org
Cc: freebsd-security at freebsd.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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