\u9700\u8981\u5c06\u5916\u7f51\u8bbf\u95ee\u672c\u5730IP(192.168.75.5)\u768480\u7aef\u53e3\u8f6c\u6362\u4e3a\u8bbf\u95ee192.168.75.3\u76848000\u7aef\u53e3\uff0c\u8fd9\u5c31\u9700\u8981\u7528\u5230iptables\u7684\u7aef\u53e3\u6620\u5c04\u3002<\/p>\n
\u5b9e\u73b0\uff1a
\n1. \u9700\u8981\u5148\u5f00\u542flinux\u7684\u6570\u636e\u8f6c\u53d1\u529f\u80fd<\/p>\n
# vi \/etc\/sysctl.conf\uff0c\u5c06net.ipv4.ip_forward=0\u66f4\u6539\u4e3anet.ipv4.ip_forward=1
\n# sysctl -p \/\/\u4f7f\u6570\u636e\u8f6c\u53d1\u529f\u80fd\u751f\u6548<\/p>\n
2. \u66f4\u6539iptables\uff0c\u4f7f\u4e4b\u5b9e\u73b0nat\u6620\u5c04\u529f\u80fd<\/p>\n
\u5c06\u5916\u7f51\u8bbf\u95ee192.168.75.5\u768480\u7aef\u53e3\u8f6c\u53d1\u5230192.168.75.3:8000\u7aef\u53e3\u3002
\n# iptables -t nat -A PREROUTING -d 192.168.75.5 -p tcp –dport 80 -j DNAT –to-destination 192.168.75.3:8000<\/p>\n
\u5c06192.168.75.3 8000\u7aef\u53e3\u5c06\u6570\u636e\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u65f6\uff0c\u5c06\u6e90ip\u6539\u4e3a192.168.75.5
\n# iptables -t nat -A POSTROUTING -d 192.168.75.3 -p tcp –dport 8000 -j SNAT 192.168.75.5<\/p>\n
3. \u67e5\u770bnat\uff0c\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4\uff1aiptables -t nat \u2013list\u68c0\u67e5nat\u5217\u8868\u4fe1\u606f\uff0c\u7ed3\u679c\u5982\u4e0b\u56fe\u6240\u793a
\niptables<\/p>\n
\u5907\u6ce8\uff1a\u4ee5\u4e0a\u662f\u9488\u5bf9\u4ece\u4e00\u53f0\u673a\u5230\u53e6\u4e00\u53f0\u673a\u7684\u7aef\u53e3\u8f6c\u53d1\uff0c\u5982\u679c\u8981\u9488\u5bf9\u672c\u673a\u8fdb\u884c\u7aef\u53e3\u8f6c\u53d1\uff0c\u5c31\u9700\u8981\u6309\u5982\u4e0b\u64cd\u4f5c<\/p>\n
\u5c06\u5916\u7f51\u8bbf\u95ee80\u7aef\u53e3\u7684\u6570\u636e\u8f6c\u53d1\u52308080\u7aef\u53e3
\n# iptables -t nat -A PREROUTING -p tcp –dport 80 -j REDIRECT –to-ports 8080<\/p>\n
\u5c06\u672c\u673a\u8bbf\u95ee80\u7aef\u53e3\u7684\u8f6c\u53d1\u5230\u672c\u673a8080
\n# iptables -t nat -A OUTPUT -p tcp -d 127.0.0.1 –dport 80 -j DNAT –to 127.0.0.1:8080
\n# iptables -t nat -A OUTPUT -p tcp -d 192.168.4.177 –dport 80 -j DNAT –to 127.0.0.1:8080
\n\u672c\u5730\u8fde\u63a5\u6307\u7684\u662f\u5728\u672c\u673a\u4e0a\uff0c\u7528 127.0.0.1 \u6216\u8005\u672c\u673a IP \u6765\u8bbf\u95ee\u672c\u673a\u7684\u7aef\u53e3\u3002\u672c\u5730\u8fde\u63a5\u7684\u6570\u636e\u5305\u4e0d\u4f1a\u901a\u8fc7\u7f51\u5361\uff0c\u800c\u662f\u7531\u5185\u6838\u5904\u7406\u540e\u76f4\u63a5\u53d1\u7ed9\u672c\u5730\u8fdb\u7a0b\u3002\u8fd9\u79cd\u6570\u636e\u5305\u5728 iptables \u4e2d\u53ea\u7ecf\u8fc7 OUTPUT \u94fe\uff0c\u800c\u4e0d\u4f1a\u7ecf\u8fc7 PREROUTING \u94fe\u3002\u6240\u4ee5\u9700\u8981\u5728 OUTPUT \u94fe\u4e2d\u8fdb\u884c DNAT\u3002\u9664\u4e86\u5bf9 127.0.0.1 \u4e4b\u5916\uff0c\u5bf9\u672c\u673a IP (\u5373 192.168.4.177) \u7684\u8bbf\u95ee\u4e5f\u5c5e\u4e8e\u672c\u5730\u8fde\u63a5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"