mirror of
https://github.com/Ponce/slackbuilds
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56 lines
1.5 KiB
Bash
56 lines
1.5 KiB
Bash
#!/bin/bash
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if [ ! $UID ]; then
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echo "You must be root to use SSHblock."
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exit 1;
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fi
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case "$1" in
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'start')
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swatch -c /etc/swatch/sshblock -t /var/log/messages &> /dev/null &
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if [ ! `ls /etc/cron.hourly | grep sshunblock` ]; then
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ln -s /usr/sbin/sshunblock.pl /etc/cron.hourly
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fi
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;;
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'stop')
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pid=`ps auxwww | grep swatch | grep -v grep | grep sshblock | awk '{print $2}'`
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kill $pid
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;;
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'clear')
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for ip in `iptables -nL INPUT | tail +3 | grep DROP | grep dpt:22 | awk '{print $4}'`; do
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iptables -D INPUT -p tcp -s $ip --dport 22 --syn -j DROP
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done
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;;
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'list')
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echo "Blocked IP addresses:"
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iptables -nL INPUT | tail +3 | grep DROP | grep dpt:22 | awk '{print $4}'
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;;
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'status')
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blocking=`ps auxwww | grep swatch | grep -v grep | grep sshblock | wc -l`
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blocked=`iptables -nL INPUT | tail +3 | grep DROP | grep dpt:22 | wc -l`
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unblocking=`ls -l /etc/cron.hourly | grep sshunblock | wc -l`
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if [ $blocked -eq 1 ]; then
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pl=''
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verb='is'
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else
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pl='es'
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verb='are'
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fi
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if [ $blocking -gt 0 ]; then
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echo "SSHblock is active"
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else
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echo "SSHblock is not running"
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fi
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echo "There $verb currently $blocked address$pl blocked."
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;;
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*)
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echo "Usage: $0 [start|stop|clear|status|list]"
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echo " "
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echo "start: Start SSHblock system"
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echo "stop: Stop blocking new IPs; old ones will still expire at the usual rate"
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echo "clear: Clear all blocked addresses"
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echo "status: Report whether SSHblock is running, how many IPs are blocked"
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echo "list: List all blocked IP addresses"
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exit
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;;
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esac
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