{"id":807,"date":"2018-10-09T08:30:45","date_gmt":"2018-10-08T23:30:45","guid":{"rendered":"https:\/\/vongg.com\/?p=807"},"modified":"2018-10-09T08:38:11","modified_gmt":"2018-10-08T23:38:11","slug":"%e5%88%a9%e7%94%a8iptables%e7%9a%84snat%e5%8a%9f%e8%83%bd%e5%ae%9e%e7%8e%b0%e5%b1%80%e5%9f%9f%e7%bd%91%e5%85%b1%e4%ba%ab%e4%b8%8a%e7%bd%91","status":"publish","type":"post","link":"https:\/\/vongg.com\/?p=807","title":{"rendered":"\u5229\u7528iptables\u7684SNAT\u529f\u80fd\u5b9e\u73b0\u5c40\u57df\u7f51\u5171\u4eab\u4e0a\u7f51"},"content":{"rendered":"<p>\u60c5\u666f\u4ecb\u7ecd\uff1a\u5c40\u57df\u7f51\u5185\u76845\u53f0\u673a\u5668\u7684IP\u5730\u5740\u5206\u522b\u662f<br \/>\n192.168.180.121-node1<br \/>\n192.168.180.122-node2<br \/>\n192.168.180.123-node3<br \/>\n192.168.180.124-node4<br \/>\n192.168.180.125-node5<\/p>\n<p>\u6bcf\u53f0\u673a\u5668\u90fd\u67092\u5757\u7f51\u5361(eth0\u548ceth1)\uff0c\u6211\u4eec\u4e0a\u9762\u7ed9\u51fa\u76845\u4e2a\u5185\u7f51IP\u90fd\u662f\u914d\u7f6e\u5728\u6bcf\u4e00\u53f0\u673a\u5668\u7684eth0\u8fd9\u5757\u7f51\u5361\u4e0a\u9762\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u6211\u4eec\u5c06node1\u8fd9\u4e2a\u673a\u5668\u4e0a\u7684eth1\u7f51\u5361\u914d\u7f6e\u4e00\u4e2a\u5916\u7f51IP\uff08119.75.218.76\uff09\u3002<br \/>\n\u5f00\u542fnode1\u8fd9\u53f0\u673a\u5668\u7684ipv4\u8f6c\u53d1\u529f\u80fd\uff1a<br \/>\necho 1 &gt; \/proc\/sys\/net\/ipv4\/ip_forward<br \/>\n(\u5c31\u662f\u56e0\u4e3a\u8fd9\u4e2a\u5fd8\u8bb0\u4e86\uff0c\u6298\u817e\u4e86\u597d\u4e45\uff01)<br \/>\n\u8fd8\u6709\uff0c\u8fd9\u4e2a\u4fee\u6539\u5728\u673a\u5668\u91cd\u542f\u7684\u65f6\u5019\u4ecd\u7136\u4f1a\u5931\u6548\u3002\u8981\u60f3\u6c38\u4e45\u6709\u6548\uff0c\u8fd8\u8981\u628a\/etc\/sysctl.conf\u6587\u4ef6\u91cc\u8fb9\u7684net.ipv4.ip_forward\u7684\u503c\u6539\u4e3a1\u3002<br \/>\n\u4fee\u6539\u5176\u4ed6\u673a\u5668\u7684\u9ed8\u8ba4\u7f51\u5173\uff1a<br \/>\n\u56e0\u4e3a\u8981\u8ba9 node1 \u8fd9\u53f0\u673a\u5668\u5e2e\u6211\u4eec\u8f6c\u53d1\u6d41\u91cf\uff0c\u6240\u4ee5\uff0c\u5c06\u5176\u4ed6\u673a\u5668\u7684\u9ed8\u8ba4\u7f51\u5173\u8bbe\u7f6e\u6210 node1 \u7684\u5185\u7f51IP\uff08\u4e5f\u5c31\u662f192.168.180.121\uff09<br \/>\n\u5728node1 \u673a\u5668\u4e0a\u4f7f\u7528iptables \u547d\u4ee4\u8fdb\u884c\u8bbe\u7f6e\uff0c\u5c06\u5176\u4ed6\u673a\u5668\u7684\u6d41\u91cf\u901a\u8fc7\u8fd9\u4e2a\u53ef\u4ee5\u8bbf\u95ee\u5916\u7f51\u7684\u673a\u5668\u8f6c\u53d1\u51fa\u53bb\uff1a<br \/>\niptables -F<br \/>\niptables -X<br \/>\niptables -Z<br \/>\n\u8fd9\u4e09\u6761\u547d\u4ee4\u5c06\u9632\u706b\u5899\u89c4\u5219\u6e05\u7a7a\u3002<br \/>\n\u4e4b\u540e\uff0c\u4f7f\u7528\u4e0b\u9762\u7684\u547d\u4ee4\u8fdb\u884c\u6d41\u91cf\u8f6c\u53d1\uff1a<br \/>\niptables -t nat -A POSTROUTING -s 192.168.180.0\/24 -o eth1 -j SNAT \u2013to-source 119.75.218.76<\/p>\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p>\u518d\u52a0 node2\uff0c3\uff0c4\uff0c5\u7684DNS\u670d\u52a1\u5668\u8bbe\u5b9a\u3002<\/p>\n<p>\u8bbe\u5b9a\u4e3a\u516c\u5171DNS\u670d\u52a1\u5668\u5373\u53ef\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u60c5\u666f\u4ecb\u7ecd\uff1a\u5c40\u57df\u7f51\u5185\u76845\u53f0\u673a\u5668\u7684IP\u5730\u5740\u5206\u522b\u662f 192.168.180.121-node1 192.168.18 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[130,27],"tags":[],"_links":{"self":[{"href":"https:\/\/vongg.com\/index.php?rest_route=\/wp\/v2\/posts\/807"}],"collection":[{"href":"https:\/\/vongg.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vongg.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vongg.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vongg.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=807"}],"version-history":[{"count":3,"href":"https:\/\/vongg.com\/index.php?rest_route=\/wp\/v2\/posts\/807\/revisions"}],"predecessor-version":[{"id":810,"href":"https:\/\/vongg.com\/index.php?rest_route=\/wp\/v2\/posts\/807\/revisions\/810"}],"wp:attachment":[{"href":"https:\/\/vongg.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=807"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vongg.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=807"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vongg.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=807"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}