centos7安装fail2ban

fail2ban是一款非常实用的安全软件，通过监视系统日志，设置错误登陆次数，可阻挡暴力密码攻击。

1.安装epel

yum install epel-release -y

2.安装fail2ban

yum install fail2ban -y

3.配置

cd /etc/fail2ban/

cp jail.conf jail.local

vim jail.local

[DEFAULT]

bantime = 3600

[sshd]

enabled = true

maxretry = 3

4.启动

systemctl start fail2ban

systemctl enable fail2ban

5.查看日志

fail2ban-client status

tailf /var/log/fail2ban.log