# 操作命令

- [CentOS 8开放防火墙端口](/linux-fu-wu-qi/readme/centos-8-kai-fang-fang-huo-qiang-duan-kou.md)
- [Linux 自定义欢迎界面](/linux-fu-wu-qi/readme/linux-zi-ding-yi-huan-ying-jie-mian.md)