- 安装:
yum update -y
yum install fail2ban -y

- 复制配置文件
cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local
- 编辑配置文件:
vi /etc/fail2ban/jail.conf


上面是我找的相关配置。配置上即可
- 启动
systemctl start fail2ban
开机自启
systemctl enable fail2ban
- 查看日志:
tail -10f /var/log/fail2ban.log

- 查看状态:
fail2ban-client status sshd

- 解封,手动封禁命令:
#封禁 非常烦的在那爆破机器
fail2ban-client set sshd banip 104.244.18.32
#解禁
fail2ban-client set sshd unbanip 104.244.18.32