Centos6.4 安装fail2ban防暴力破解

Centos6.4 安装fail2ban防暴力破解

 

一. 安装

 

curl -O https://codeload.github.com/fail2ban/fail2ban/tar.gz/0.9.0

mv 0.9.0 0.9.0.tar.gz
tar zxvf 0.9.0.tar.gz
cd fail2ban-0.9.0/

python setup.py build
python setup.py install

 

二.配置(防ssh暴力)

　　

vi /etc/fail2ban/jail.conf

[ssh-iptables]

enabled  = true
filter   = sshd
action   = iptables[name=SSH, port=ssh, protocol=tcp]
           sendmail-whois[name=SSH, dest=caoguo@admin.com, sender=root@localhost, sendername="192.168.1.25"]
logpath  = /var/log/secure
maxretry = 5

 

　　

 

三.配置开机启动脚本

fail2ban-client -x start
fail2ban-client -x stop
fail2ban-client -x reload



[root@gateway ~]# cat /etc/init.d/fail2ban 
#!/bin/bash
#
# chkconfig: - 92 08
# processname: fail2ban-server
# config: /etc/fail2ban/fail2ban.conf
# pidfile: /var/run/fail2ban/fail2ban.pid
# description: fail2ban is a daemon to ban hosts that cause multiple authentication errors
#
### BEGIN INIT INFO
# Provides: fail2ban
# Required-Start: $local_fs $remote_fs
# Required-Stop: $local_fs $remote_fs
# Should-Start: $time $network $syslog iptables firehol shorewall ferm
# Should-Stop: $network $syslog iptables firehol shorewall ferm
# Default-Start: 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start/Stop fail2ban
# Description: Start/Stop fail2ban, a daemon to ban hosts that cause multiple authentication errors
### END INIT INFO

# Source function library.
. /etc/rc.d/init.d/functions

# Check that the config file exists
[ -f /etc/fail2ban/fail2ban.conf ] || exit 0

FAIL2BAN="/usr/bin/fail2ban-client"
prog=fail2ban-server
lockfile=${LOCKFILE-/var/lock/subsys/fail2ban}
socket=${SOCKET-/var/run/fail2ban/fail2ban.sock}
pidfile=${PIDFILE-/var/run/fail2ban/fail2ban.pid}
RETVAL=0

start() {
    echo -n $"Starting fail2ban: "
    ${FAIL2BAN} -x start > /dev/null
    RETVAL=$?
    if [ $RETVAL = 0 ]; then
        touch ${lockfile}
        echo_success
    else
        echo_failure
    fi
    echo
    return $RETVAL
}

stop() {
    echo -n $"Stopping fail2ban: "
    ${FAIL2BAN} stop > /dev/null
    RETVAL=$?
    if [ $RETVAL = 0 ]; then
        rm -f ${lockfile} ${pidfile}
        echo_success
    else
        echo_failure
    fi
    echo
    return $RETVAL
}

reload() {
    echo "Reloading fail2ban: "
    ${FAIL2BAN} reload
    RETVAL=$?
    echo
    return $RETVAL
}

# See how we were called.
case "$1" in
    start)
        status -p ${pidfile} ${prog} >/dev/null 2>&1 && exit 0
        start
        ;;
    stop)
        stop
        ;;
    reload)
        reload
        ;;
    restart)
        stop
        start
        ;;
    status)
        status -p ${pidfile} ${prog}
        RETVAL=$?
        [ $RETVAL = 0 ] && ${FAIL2BAN} status
        ;;
    *)
        echo $"Usage: fail2ban {start|stop|restart|reload|status}"
        RETVAL=2
esac

exit $RETVAL

 

四.启动

chkconfig fail2ban on
/etc/init.d/fail2ban start