From: Bryan Christ <bryan.christ@filefront.com>
To: netfilter@lists.netfilter.org
Subject: Setting up a local firewall
Date: Sun, 31 Jul 2005 21:24:07 -0500 [thread overview]
Message-ID: <42ED87C7.207@filefront.com> (raw)
I locked myself out of my server until I rebooted it. My goal was to lock down everything and allow only SSH connectivity. Can anyone show me where my logic went wrong? Here was the fatal script which I wrote:
/sbin/iptables -F INPUT
/sbin/iptables -A INPUT -s 0/0 -j DROP
/sbin/iptables -A INPUT -s 0/0 -m state --state NEW,ESTABLISHED -p tcp --dport 22 -j ACCEPT
My guess is that I missed accepting syn packets, but I'm not ready to "try" again.
Thanks in advance,
Bryan
next reply other threads:[~2005-08-01 2:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-01 2:24 Bryan Christ [this message]
2005-08-01 12:20 ` Setting up a local firewall Jan Engelhardt
2005-08-01 12:49 ` Bjørn Ruberg
2005-08-01 12:51 ` Jörg Harmuth
2005-08-01 12:54 ` /dev/rob0
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