按照网上教程配置 fail2ban，做一下安全防御，最后出现了 Job for fail2ban.service failed 错误，怎么办？

[kmdd33]

错误提示：＃ sudo service fail2ban restart Redirecting to /bin/systemctl restart fail2ban.service Job for fail2ban.service failed because the control process exited with error code. See "systemctl status fail2ban.service" and "journalctl -xe" for details.

参考的教程是这个： https://linux.cn/article-5067-1.html

然后我输入 journalctl -xe 出现了如下情况： fail2ban.service" and "journalctl -xe" for details. [root@xiaoshu tmp]# journalctl -xe Feb 01 14:32:13 xiaoshu fail2ban-client[27696]: 'enabled = true\n' Feb 01 14:32:13 xiaoshu systemd[1]: fail2ban.service: control process exited, code=exited status=255 Feb 01 14:32:13 xiaoshu systemd[1]: Failed to start Fail2Ban Service. -- Subject: Unit fail2ban.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel

-- Unit fail2ban.service has failed.

-- The result is failed. Feb 01 14:32:13 xiaoshu systemd[1]: Unit fail2ban.service entered failed state. Feb 01 14:32:13 xiaoshu systemd[1]: fail2ban.service failed. Feb 01 14:32:13 xiaoshu systemd[1]: fail2ban.service holdoff time over, scheduling restart. Feb 01 14:32:13 xiaoshu systemd[1]: start request repeated too quickly for fail2ban.service Feb 01 14:32:13 xiaoshu systemd[1]: Failed to start Fail2Ban Service. -- Subject: Unit fail2ban.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel

-- Unit fail2ban.service has failed.

-- The result is failed. Feb 01 14:32:13 xiaoshu systemd[1]: Unit fail2ban.service entered failed state. Feb 01 14:32:13 xiaoshu systemd[1]: fail2ban.service failed. lines 2481-2504/2504 (END)

[Devin]

selinux 问题，新手实在搞不定就关了吧

[msg7086]

其实我也不知道怎么配。我就直接 apt 安装上 fail2ban 结束，应该已经自动配置好了不用我管的。