Iptables-外网地址及端口映射到内网地址及端口

梦里梦外; 2022-05-22 08:44 429阅读 0赞

**1.要求：**

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   <td><p><span style="font-family:SimSun;font-size:18px;">把外部IP地址及端口映射到内部服务器地址及端口</span></p><span style="font-family:SimSun;font-size:18px;">在10段主机可以通过访问10.0.0.141：80，即可访问到192.168.1.17:9000 提供的web服务</span></td> 
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**2.192.168.1.17主机web环境搭建**

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   <td><p><span style="font-family:SimSun;font-size:18px;">[root@test ~]# yum install epel-release -yum</span></p><span style="font-family:SimSun;font-size:18px;">[root@test ~]# yum install nginx -y &nbsp;&nbsp;<br>[root@test ~]# systemctl start nginx<br>[root@test nginx]# egrep -v "#|^$" nginx.conf.default &gt; nginx.conf<br><br><br>[root@test nginx]# mkdir html/www/ -p<br>[root@test nginx]# echo test &gt; html/www/index.html<br>[root@test nginx]# cat &nbsp;nginx.conf<br>worker_processes &nbsp;1;<br>events { <br>&nbsp; &nbsp; worker_connections &nbsp;1024;<br>}<br>http { <br>&nbsp; &nbsp; include &nbsp; &nbsp; &nbsp; mime.types;<br>&nbsp; &nbsp; default_type &nbsp;application/octet-stream;<br>&nbsp; &nbsp; sendfile &nbsp; &nbsp; &nbsp; &nbsp;on;<br>&nbsp; &nbsp; keepalive_timeout &nbsp;65;<br>&nbsp; &nbsp; server { <br>&nbsp; &nbsp; &nbsp; &nbsp; listen &nbsp; &nbsp; &nbsp; 9000;<br>&nbsp; &nbsp; &nbsp; &nbsp; server_name &nbsp;www.test.com;<br>&nbsp; &nbsp; &nbsp; &nbsp; location / { <br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; root &nbsp; /etc/nginx/html/www;<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; index &nbsp;index.html index.htm;<br>&nbsp; &nbsp; &nbsp; &nbsp; }<br>&nbsp; &nbsp; }<br>}<br>[root@test nginx]# systemctl restart nginx<br><br></span></td> 
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**3.10.0.0.17配置**

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   <td><span style="font-family:SimSun;font-size:18px;">[root@liang ~]# echo "192.168.1.17 www.test.com" &gt;&gt; /etc/hosts<br>[root@liang ~]# curl www.test.com:9000<br>test<br>[root@liang ~]# iptables -t nat -A PREROUTING -d 10.0.0.141 -p tcp --dport 80 \<br>-j DNAT --to-destination 192.168.1.17:9000<br></span></td> 
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**4.测试：**