[3.1.1 常见工作总结](3.1.1%E5%B8%B8%E8%A7%81%E5%B7%A5%E4%BD%9C%E6%80%BB%E7%BB%93.md) [3.1.2 常见服务使用和部署](3.1.2%E5%B8%B8%E8%A7%81%E6%9C%8D%E5%8A%A1%E9%83%A8%E7%BD%B2.md) [3.1.3 操作系统优化](3.1.3%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F%E4%BC%98%E5%8C%96.md) [3.1.4 常用命令（Centos8）](3.1.4%E5%B8%B8%E7%94%A8%E5%91%BD%E4%BB%A4%EF%BC%88Centos8%EF%BC%89.md)