今天装完开源邮箱服务(EwoMail)之后发现防火墙被屏蔽了,执行相关所有firewall的命令都失效,提示如下:
Failed to ** firewalld.service: Unit is masked.
执行下
systemctl unmask firewalld
即可解除屏蔽
国产开源太可怕.....