autoscript/userlimitssh.sh at master · thirdza056/autoscript · GitHub

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#!/bin/bash

PARAM=$1
echo -n > /tmp/pid2
ps ax|grep sshd > /tmp/pid
cat /tmp/pid | grep -i 'sshd -p' > /tmp/pids
cat /var/log/auth.log |  grep -i "Accepted password for" > /tmp/sks
perl -pi -e 's/Accepted password for for//g' /tmp/sks
perl -pi -e 's/sshd//g' /tmp/sks

cat /tmp/pid | while read line;do
set -- $line
p=$1
var=`cat /tmp/sks | grep -i $1`
set -- $var
l=$6
if [ "$6" != '' ]
then
echo "$p $l" | cat - /tmp/pid2 > /tmp/temp && mv /tmp/temp /tmp/pid2
fi
 done
case $PARAM in
1)
echo -n > /tmp/user1
cat /tmp/pid2 | while read line;do
set -- $line
p=$1
u=$2
cat /tmp/user1 | grep -i $u > /dev/null
if [ $? = 1 ];then
echo $line >> /tmp/user1
else
kill $p
echo "kill $p user $u"
fi
done
rm -f /tmp/pid
rm -f /tmp/pid2
rm -f /tmp/pids
rm -f /tmp/sks
rm -f /tmp/user1
exit 0
;;
2)
echo -n > /tmp/user1
echo -n > /tmp/user2
cat /tmp/pid2 | while read line;do
set -- $line
p=$1
u=$2
cat /tmp/user1 | grep -i $u > /dev/null
if [ $? = 1 ];then
echo $line >> /tmp/user1
else
cat /tmp/user2 | grep -i $u > /dev/null
if [ $? = 1 ];then
echo $line >> /tmp/user2
else
kill $p
echo "kill $p user $u"
fi
fi
done
rm -f /tmp/pid
rm -f /tmp/pid2
rm -f /tmp/pids
rm -f /tmp/sks
rm -f /tmp/user1
rm -f /tmp/user2
exit 0
;;
*)
  echo " gunakan perintah userlimitssh 1 untuk limit 1 login saja"
  echo " atau userlimitssh 2  untuk melimit max 2 login"
rm -f /tmp/pid
rm -f /tmp/pid2
rm -f /tmp/pids
rm -f /tmp/sks
exit 1
;;

esac