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[OT] Re: [cobalt-users] Annoying email "service" seems to be "servicing" my RaQ3
- Subject: [OT] Re: [cobalt-users] Annoying email "service" seems to be "servicing" my RaQ3
- From: Nico Meijer <nico.meijer@xxxxxxxxx>
- Date: Fri Feb 15 07:00:02 2002
- List-id: Mailing list for users to share thoughts on Cobalt products. <cobalt-users.list.cobalt.com>
Hi,
Meanwhile, now I'm REALLY confused. I've routed him, chained him, and
killed him, and the SOB keeps coming back with the SYN... Possibly IP spoofing?
Probably not, but could happen in the future; very annoying when that
happens...
Just to be certain about IP spoofing / SYN flooding, add the following line
at the end of /etc/rc.d/rc.local:
echo "1" > /proc/sys/net/ipv4/tcp_syncookies
Good luck... Nico