{"id":43190,"date":"2024-10-04T20:36:48","date_gmt":"2024-10-04T12:36:48","guid":{"rendered":"https:\/\/server.hk\/cnblog\/43190\/"},"modified":"2024-10-04T20:36:48","modified_gmt":"2024-10-04T12:36:48","slug":"centos-7-%e4%b8%8a%e5%af%a6%e7%8f%be-lvs-%e8%b2%a0%e8%bc%89%e5%9d%87%e8%a1%a1%e7%be%a4%e9%9b%86%e4%b9%8b-nat-%e8%bd%89%e6%8f%9b%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/43190\/","title":{"rendered":"CentOS 7 \u4e0a\u5be6\u73fe LVS \u8ca0\u8f09\u5747\u8861\u7fa4\u96c6\u4e4b NAT \u8f49\u63db\u6a21\u5f0f"},"content":{"rendered":"<h1 id=\"centos-7-%e4%b8%8a%e5%af%a6%e7%8f%be-lvs-%e8%b2%a0%e8%bc%89%e5%9d%87%e8%a1%a1%e7%be%a4%e9%9b%86%e4%b9%8b-nat-%e8%bd%89%e6%8f%9b%e6%a8%a1%e5%bc%8f-PZlzgWrmZD\">CentOS 7 \u4e0a\u5be6\u73fe LVS \u8ca0\u8f09\u5747\u8861\u7fa4\u96c6\u4e4b NAT \u8f49\u63db\u6a21\u5f0f<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u8ca0\u8f09\u5747\u8861\u6280\u8853\u5df2\u6210\u70ba\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u7684\u95dc\u9375\u3002Linux Virtual Server\uff08LVS\uff09\u662f\u4e00\u7a2e\u6d41\u884c\u7684\u8ca0\u8f09\u5747\u8861\u89e3\u6c7a\u65b9\u6848\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528 CentOS 7 \u7684\u74b0\u5883\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 CentOS 7 \u4e0a\u5be6\u73fe LVS \u8ca0\u8f09\u5747\u8861\u7fa4\u96c6\uff0c\u4e26\u5c08\u6ce8\u65bc NAT \u8f49\u63db\u6a21\u5f0f\u7684\u914d\u7f6e\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-lvs%ef%bc%9f-PZlzgWrmZD\">\u4ec0\u9ebc\u662f LVS\uff1f<\/h2>\n<p>LVS \u662f\u4e00\u500b\u57fa\u65bc Linux \u7684\u8ca0\u8f09\u5747\u8861\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u5c07\u7528\u6236\u7684\u8acb\u6c42\u5206\u914d\u5230\u591a\u500b\u5f8c\u7aef\u4f3a\u670d\u5668\u4e0a\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u7528\u6027\u548c\u64f4\u5c55\u6027\u3002LVS \u652f\u6301\u591a\u7a2e\u8ca0\u8f09\u5747\u8861\u6a21\u5f0f\uff0c\u5176\u4e2d NAT\uff08Network Address Translation\uff09\u6a21\u5f0f\u662f\u6700\u5e38\u7528\u7684\u4e00\u7a2e\u3002<\/p>\n<h2 id=\"nat-%e6%a8%a1%e5%bc%8f%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-PZlzgWrmZD\">NAT \u6a21\u5f0f\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>NAT \u6a21\u5f0f\u4e0b\uff0cLVS \u4f3a\u670d\u5668\u6703\u5c07\u7528\u6236\u7684\u8acb\u6c42\u8f49\u767c\u5230\u5f8c\u7aef\u4f3a\u670d\u5668\uff0c\u4e26\u5c07\u56de\u61c9\u8fd4\u56de\u7d66\u7528\u6236\u3002\u9019\u610f\u5473\u8457\u7528\u6236\u7684\u8acb\u6c42\u548c\u56de\u61c9\u90fd\u6703\u7d93\u904e LVS \u4f3a\u670d\u5668\u3002\u9019\u7a2e\u6a21\u5f0f\u7684\u512a\u9ede\u662f\u7c21\u55ae\u6613\u7528\uff0c\u4f46\u4e5f\u6703\u589e\u52a0 LVS \u4f3a\u670d\u5668\u7684\u8ca0\u64d4\u3002<\/p>\n<h2 id=\"%e7%92%b0%e5%a2%83%e6%ba%96%e5%82%99-PZlzgWrmZD\">\u74b0\u5883\u6e96\u5099<\/h2>\n<p>\u5728\u958b\u59cb\u914d\u7f6e LVS \u4e4b\u524d\uff0c\u60a8\u9700\u8981\u6e96\u5099\u4ee5\u4e0b\u74b0\u5883\uff1a<\/p>\n<ul>\n<li>\u4e00\u53f0 CentOS 7 \u4f3a\u670d\u5668\u4f5c\u70ba LVS \u4f3a\u670d\u5668<\/li>\n<li>\u591a\u53f0 CentOS 7 \u4f3a\u670d\u5668\u4f5c\u70ba\u5f8c\u7aef\u4f3a\u670d\u5668<\/li>\n<li>\u5b89\u88dd\u5fc5\u8981\u7684\u8edf\u4ef6\u5305\uff0c\u5982 ipvsadm<\/li>\n<\/ul>\n<h2 id=\"%e5%ae%89%e8%a3%9d-lvs-PZlzgWrmZD\">\u5b89\u88dd LVS<\/h2>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u5728 LVS \u4f3a\u670d\u5668\u4e0a\u5b89\u88dd ipvsadm \u5de5\u5177\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u9032\u884c\u5b89\u88dd\uff1a<\/p>\n<pre><code>sudo yum install ipvsadm<\/code><\/pre>\n<h2 id=\"%e9%85%8d%e7%bd%ae-lvs-PZlzgWrmZD\">\u914d\u7f6e LVS<\/h2>\n<p>\u63a5\u4e0b\u4f86\uff0c\u60a8\u9700\u8981\u914d\u7f6e LVS\u3002\u4ee5\u4e0b\u662f\u914d\u7f6e\u7684\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e8%a8%ad%e7%bd%ae%e8%99%9b%e6%93%ac-ip-PZlzgWrmZD\">1. \u8a2d\u7f6e\u865b\u64ec IP<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u8a2d\u7f6e\u4e00\u500b\u865b\u64ec IP\uff08VIP\uff09\uff0c\u9019\u662f\u7528\u6236\u5c07\u8a2a\u554f\u7684\u5730\u5740\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8a2d\u7f6e VIP\uff1a<\/p>\n<pre><code>ip addr add 192.168.1.100\/24 dev eth0<\/code><\/pre>\n<h3 id=\"2-%e9%85%8d%e7%bd%ae-lvs-PZlzgWrmZD\">2. \u914d\u7f6e LVS<\/h3>\n<p>\u4f7f\u7528 ipvsadm \u547d\u4ee4\u4f86\u914d\u7f6e LVS\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\u547d\u4ee4\uff0c\u5c07\u6d41\u91cf\u8f49\u767c\u5230\u5169\u53f0\u5f8c\u7aef\u4f3a\u670d\u5668\uff1a<\/p>\n<pre><code>ipvsadm -A -t 192.168.1.100:80 -s rr\nipvsadm -a -t 192.168.1.100:80 -r 192.168.1.101:80 -m\nipvsadm -a -t 192.168.1.100:80 -r 192.168.1.102:80 -m<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c-A \u7528\u65bc\u6dfb\u52a0\u865b\u64ec\u670d\u52d9\uff0c-a \u7528\u65bc\u6dfb\u52a0\u5f8c\u7aef\u4f3a\u670d\u5668\uff0c-s \u7528\u65bc\u8a2d\u7f6e\u8abf\u5ea6\u7b97\u6cd5\uff08\u9019\u88e1\u4f7f\u7528\u7684\u662f\u8f2a\u8a62\u7b97\u6cd5\uff09\u3002<\/p>\n<h3 id=\"3-%e5%95%9f%e7%94%a8-ip-%e8%bd%89%e7%99%bc-PZlzgWrmZD\">3. \u555f\u7528 IP \u8f49\u767c<\/h3>\n<p>\u70ba\u4e86\u4f7f LVS \u6b63\u5e38\u5de5\u4f5c\uff0c\u60a8\u9700\u8981\u555f\u7528 IP \u8f49\u767c\u3002\u7de8\u8f2f \/etc\/sysctl.conf \u6587\u4ef6\uff0c\u4e26\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre><code>net.ipv4.ip_forward = 1<\/code><\/pre>\n<p>\u7136\u5f8c\u904b\u884c\u4ee5\u4e0b\u547d\u4ee4\u4f7f\u66f4\u6539\u751f\u6548\uff1a<\/p>\n<pre><code>sudo sysctl -p<\/code><\/pre>\n<h2 id=\"%e6%b8%ac%e8%a9%a6-lvs-%e9%85%8d%e7%bd%ae-PZlzgWrmZD\">\u6e2c\u8a66 LVS \u914d\u7f6e<\/h2>\n<p>\u5b8c\u6210\u914d\u7f6e\u5f8c\uff0c\u60a8\u53ef\u4ee5\u901a\u904e\u8a2a\u554f\u865b\u64ec IP \u4f86\u6e2c\u8a66 LVS \u662f\u5426\u6b63\u5e38\u5de5\u4f5c\u3002\u4f7f\u7528\u700f\u89bd\u5668\u6216 curl \u547d\u4ee4\u4f86\u6aa2\u67e5\u662f\u5426\u80fd\u5920\u6210\u529f\u8a2a\u554f\u5f8c\u7aef\u4f3a\u670d\u5668\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-PZlzgWrmZD\">\u7e3d\u7d50<\/h2>\n<p>\u5728 CentOS 7 \u4e0a\u5be6\u73fe LVS \u8ca0\u8f09\u5747\u8861\u7fa4\u96c6\u7684 NAT \u8f49\u63db\u6a21\u5f0f\u662f\u4e00\u500b\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u53ef\u7528\u6027\u548c\u6027\u80fd\u3002\u901a\u904e\u6b63\u78ba\u7684\u914d\u7f6e\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u5c07\u6d41\u91cf\u5206\u914d\u5230\u591a\u53f0\u5f8c\u7aef\u4f3a\u670d\u5668\u4e0a\uff0c\u5f9e\u800c\u5be6\u73fe\u9ad8\u6548\u7684\u8ca0\u8f09\u5747\u8861\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u5c0b\u627e\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5728 CentOS 7 \u4e0a\u5be6\u73fe LVS \u8ca0\u8f09\u5747\u8861\u7fa4\u96c6\u7684 NAT \u8f49\u63db\u6a21\u5f0f\uff0c\u63d0\u5347\u4f3a\u670d\u5668\u6548\u80fd\u8207\u53ef\u7528\u6027\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-43190","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/43190","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=43190"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/43190\/revisions"}],"predecessor-version":[{"id":43191,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/43190\/revisions\/43191"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=43190"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=43190"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=43190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}