@ -266,6 +266,10 @@ ls /usr/local/nginx | tee -a test.txt #查看并以追加的形式写入内容
#### nmap 命令
```
nmap ip #查看开放端口
nmap ip -p 端口 #查看指定端口是否开启
nmap -sS -P0 -sV -O ip #查看主机系统信息
```
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