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2003 Jul 16
6
HOWTO: Temporary dynamic blocking with Shorewall and Portsentry
...h TCP and
UDP. Do NOT use the advanced or stealth modes.
5. My shell script to drop and then later allow the attacking IP
address:
#!/bin/bash
# portsentry.temp.block
# Rodolfo J. Paiz <rpaiz@simpaticus.com>
# version 2003.07.01
# Usage: portsentry.temp.block <bad_ip> <bad_port>
# portsentry.temp.block is a small script intended to be run by portsentry
# when its sensors are triggered. It uses iptables (more specifically, it
# uses the dynamic blacklisting capabilities of Shorewall) to deny all
# access to the server from the attacking host. Then, a set time interval...