Protection Of SSH from Hackers

This Is used to add an additional layer to The System Security

# !/bin/sh
#
# swatch This shell script takes care of starting and stopping
# swatch.
#
# chkconfig: 2345 81 31
# description: Swatch is a System WATCHdog program that we are
# using here to block repeated failed ssh logins.
# processname: swatch


RETVAL=0
test -x /usr/bin/swatch || exit 0
start(){
echo "Starting swatch"
# Spawn a new swatch program
/usr/bin/swatch --config-file=/etc/swatchrc --tail-file=/var/log/secure --awk-field-syntax --tail-args "-F" &
echo $PID
return $RETVAL
}
stop () {
# stop daemon
echo "Stopping swatch:" $PROG
killall swatch
return $RETVAL
}
restart () {
stop
start
RETVAL=$?
return $RETVAL
}

case "$1" in
start)
start
;;
stop)
stop
;;
restart)
restart
;;
*)
echo "Usage: $0 {start|stop|restart}"
RETVAL=1
esac
exit $RETVAL