端口
端口 related cheatsheet collection - 4 quick reference guides. Find fast, copy directly. The essential online command reference for developers and SRE.
Linux Troubleshooting Cheatsheet - System Fault Diagnosis Command Reference
One-page Linux troubleshooting reference covering CPU diagnosis, memory analysis, disk I/O, network troubleshooting, and process management. Quick find, direct copy.
lsof Cheatsheet - Linux Process & Port Diagnostics Reference
一页速查 Linux lsof 进程与端口排查命令，覆盖按进程、端口、文件、网络连接查找打开的文件和连接等核心功能。快速查找，直接复制。
netstat Cheatsheet - Linux Network Troubleshooting Reference
一页速查 Linux netstat 网络排查命令，覆盖查看网络连接、端口监听、路由表、接口统计、协议状态等核心功能。快速查找，直接复制。
netcat Cheatsheet - Network Debugging
一页速查 Netcat (nc) 网络调试命令，覆盖端口扫描、文件传输、端口监听、HTTP 调试、代理转发等核心功能。快速查找，直接复制。