{"id":44212,"date":"2024-10-06T13:49:59","date_gmt":"2024-10-06T05:49:59","guid":{"rendered":"https:\/\/server.hk\/cnblog\/44212\/"},"modified":"2024-10-06T13:49:59","modified_gmt":"2024-10-06T05:49:59","slug":"centos-%e4%b8%8b%e7%9a%84-tcp_wrappers-%e6%87%89%e7%94%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/44212\/","title":{"rendered":"CentOS \u4e0b\u7684 TCP_Wrappers \u61c9\u7528"},"content":{"rendered":"<h1 id=\"centos-%e4%b8%8b%e7%9a%84-tcp_wrappers-%e6%87%89%e7%94%a8-WItDdYDEDT\">CentOS \u4e0b\u7684 TCP_Wrappers \u61c9\u7528<\/h1>\n<p>\u5728\u4f3a\u670d\u5668\u7ba1\u7406\u4e2d\uff0c\u5b89\u5168\u6027\u662f\u6bcf\u4f4d\u7cfb\u7d71\u7ba1\u7406\u54e1\u5fc5\u9808\u91cd\u8996\u7684\u8ab2\u984c\u3002TCP_Wrappers \u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u7db2\u8def\u8a2a\u554f\u7684\u5de5\u5177\uff0c\u7279\u5225\u662f\u5728 CentOS \u7cfb\u7d71\u4e2d\uff0c\u5b83\u80fd\u5920\u6709\u6548\u5730\u589e\u5f37\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e TCP_Wrappers \u7684\u57fa\u672c\u6982\u5ff5\u3001\u5b89\u88dd\u6b65\u9a5f\u53ca\u5176\u5728 CentOS \u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-tcp_wrappers%ef%bc%9f-WItDdYDEDT\">\u4ec0\u9ebc\u662f TCP_Wrappers\uff1f<\/h2>\n<p>TCP_Wrappers \u662f\u4e00\u500b\u7528\u65bc\u9650\u5236\u548c\u63a7\u5236\u7db2\u8def\u670d\u52d9\u8a2a\u554f\u7684\u5b89\u5168\u5de5\u5177\u3002\u5b83\u901a\u904e\u6aa2\u67e5\u4f86\u81ea\u5ba2\u6236\u7aef\u7684 IP \u5730\u5740\uff0c\u4f86\u6c7a\u5b9a\u662f\u5426\u5141\u8a31\u6216\u62d2\u7d55\u8a2a\u554f\u7279\u5b9a\u7684\u670d\u52d9\u3002\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u6709\u6548\u5730\u9632\u6b62\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\uff0c\u4e26\u63d0\u9ad8\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002<\/p>\n<h2 id=\"tcp_wrappers-%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-WItDdYDEDT\">TCP_Wrappers \u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>TCP_Wrappers \u901a\u904e\u5169\u500b\u4e3b\u8981\u7684\u914d\u7f6e\u6587\u4ef6\u4f86\u904b\u4f5c\uff1a<code>\/etc\/hosts.allow<\/code> \u548c <code>\/etc\/hosts.deny<\/code>\u3002\u9019\u5169\u500b\u6587\u4ef6\u7528\u65bc\u5b9a\u7fa9\u54ea\u4e9b\u4e3b\u6a5f\u53ef\u4ee5\u8a2a\u554f\u54ea\u4e9b\u670d\u52d9\u3002<\/p>\n<ul>\n<li><code>\/etc\/hosts.allow<\/code>\uff1a\u9019\u500b\u6587\u4ef6\u5217\u51fa\u4e86\u88ab\u5141\u8a31\u8a2a\u554f\u670d\u52d9\u7684\u4e3b\u6a5f\u3002<\/li>\n<li><code>\/etc\/hosts.deny<\/code>\uff1a\u9019\u500b\u6587\u4ef6\u5217\u51fa\u4e86\u88ab\u62d2\u7d55\u8a2a\u554f\u670d\u52d9\u7684\u4e3b\u6a5f\u3002<\/li>\n<\/ul>\n<p>\u7576\u4e00\u500b\u5ba2\u6236\u7aef\u5617\u8a66\u9023\u63a5\u5230\u4f3a\u670d\u5668\u4e0a\u7684\u67d0\u500b\u670d\u52d9\u6642\uff0cTCP_Wrappers \u6703\u9996\u5148\u6aa2\u67e5 <code>\/etc\/hosts.allow<\/code> \u6587\u4ef6\u3002\u5982\u679c\u5ba2\u6236\u7aef\u7684 IP \u5730\u5740\u5728\u9019\u500b\u6587\u4ef6\u4e2d\uff0c\u5247\u5141\u8a31\u8a2a\u554f\uff1b\u5982\u679c\u4e0d\u5728\uff0c\u5247\u6aa2\u67e5 <code>\/etc\/hosts.deny<\/code> \u6587\u4ef6\u3002\u5982\u679c\u5ba2\u6236\u7aef\u7684 IP \u5730\u5740\u5728\u9019\u500b\u6587\u4ef6\u4e2d\uff0c\u5247\u62d2\u7d55\u8a2a\u554f\uff1b\u5982\u679c\u4e0d\u5728\uff0c\u5247\u9ed8\u8a8d\u5141\u8a31\u8a2a\u554f\u3002<\/p>\n<h2 id=\"%e5%9c%a8-centos-%e4%b8%8a%e5%ae%89%e8%a3%9d-tcp_wrappers-WItDdYDEDT\">\u5728 CentOS \u4e0a\u5b89\u88dd TCP_Wrappers<\/h2>\n<p>\u5728 CentOS \u7cfb\u7d71\u4e0a\uff0cTCP_Wrappers \u901a\u5e38\u662f\u9810\u88dd\u7684\uff0c\u4f46\u5982\u679c\u9700\u8981\u624b\u52d5\u5b89\u88dd\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>sudo yum install tcp_wrappers<\/code><\/pre>\n<p>\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u53ef\u4ee5\u901a\u904e\u6aa2\u67e5\u7248\u672c\u4f86\u78ba\u8a8d\u5b89\u88dd\u662f\u5426\u6210\u529f\uff1a<\/p>\n<pre><code>tcpd -V<\/code><\/pre>\n<h2 id=\"%e9%85%8d%e7%bd%ae-tcp_wrappers-WItDdYDEDT\">\u914d\u7f6e TCP_Wrappers<\/h2>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u9700\u8981\u914d\u7f6e <code>\/etc\/hosts.allow<\/code> \u548c <code>\/etc\/hosts.deny<\/code> \u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\u914d\u7f6e\uff1a<\/p>\n<h3 id=\"%e5%85%81%e8%a8%b1%e7%89%b9%e5%ae%9a-ip-%e8%a8%aa%e5%95%8f-WItDdYDEDT\">\u5141\u8a31\u7279\u5b9a IP \u8a2a\u554f<\/h3>\n<p>\u5982\u679c\u5e0c\u671b\u5141\u8a31\u67d0\u500b\u7279\u5b9a\u7684 IP \u5730\u5740\uff08\u4f8b\u5982 192.168.1.100\uff09\u8a2a\u554f SSH \u670d\u52d9\uff0c\u53ef\u4ee5\u5728 <code>\/etc\/hosts.allow<\/code> \u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre><code>sshd: 192.168.1.100<\/code><\/pre>\n<h3 id=\"%e6%8b%92%e7%b5%95%e7%89%b9%e5%ae%9a-ip-%e8%a8%aa%e5%95%8f-WItDdYDEDT\">\u62d2\u7d55\u7279\u5b9a IP \u8a2a\u554f<\/h3>\n<p>\u5982\u679c\u5e0c\u671b\u62d2\u7d55\u67d0\u500b\u7279\u5b9a\u7684 IP \u5730\u5740\uff08\u4f8b\u5982 192.168.1.200\uff09\u8a2a\u554f\u6240\u6709\u670d\u52d9\uff0c\u53ef\u4ee5\u5728 <code>\/etc\/hosts.deny<\/code> \u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre><code>ALL: 192.168.1.200<\/code><\/pre>\n<h3 id=\"%e4%bd%bf%e7%94%a8%e9%80%9a%e9%85%8d%e7%ac%a6-WItDdYDEDT\">\u4f7f\u7528\u901a\u914d\u7b26<\/h3>\n<p>TCP_Wrappers \u4e5f\u652f\u6301\u4f7f\u7528\u901a\u914d\u7b26\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5e0c\u671b\u5141\u8a31\u6240\u6709\u4f86\u81ea 192.168.1.* \u7684 IP \u5730\u5740\u8a2a\u554f SSH \u670d\u52d9\uff0c\u53ef\u4ee5\u9019\u6a23\u914d\u7f6e\uff1a<\/p>\n<pre><code>sshd: 192.168.1.*<\/code><\/pre>\n<h2 id=\"%e6%b8%ac%e8%a9%a6-tcp_wrappers-%e9%85%8d%e7%bd%ae-WItDdYDEDT\">\u6e2c\u8a66 TCP_Wrappers \u914d\u7f6e<\/h2>\n<p>\u914d\u7f6e\u5b8c\u6210\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>telnet<\/code> \u6216 <code>ssh<\/code> \u547d\u4ee4\u4f86\u6e2c\u8a66\u914d\u7f6e\u662f\u5426\u751f\u6548\u3002\u4f8b\u5982\uff0c\u5f9e\u5141\u8a31\u7684 IP \u5730\u5740\u5617\u8a66\u9023\u63a5 SSH \u670d\u52d9\uff0c\u61c9\u8a72\u80fd\u5920\u6210\u529f\u9023\u63a5\uff1b\u800c\u5f9e\u88ab\u62d2\u7d55\u7684 IP \u5730\u5740\u5247\u61c9\u8a72\u7121\u6cd5\u9023\u63a5\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-WItDdYDEDT\">\u7e3d\u7d50<\/h2>\n<p>TCP_Wrappers \u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5e6b\u52a9\u7cfb\u7d71\u7ba1\u7406\u54e1\u5728 CentOS \u7cfb\u7d71\u4e2d\u589e\u5f37\u4f3a\u670d\u5668\u7684\u5b89\u5168\u6027\u3002\u901a\u904e\u5408\u7406\u914d\u7f6e <code>\/etc\/hosts.allow<\/code> \u548c <code>\/etc\/hosts.deny<\/code> \u6587\u4ef6\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u7db2\u8def\u8a2a\u554f\uff0c\u4fdd\u8b77\u4f3a\u670d\u5668\u514d\u53d7\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 CentOS \u4e0a\u914d\u7f6e\u548c\u4f7f\u7528 TCP Wrappers \u4ee5\u589e\u5f37\u7db2\u7d61\u5b89\u5168\uff0c\u63a7\u5236\u8a2a\u554f\u548c\u4fdd\u8b77\u670d\u52d9\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-44212","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44212","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=44212"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44212\/revisions"}],"predecessor-version":[{"id":44213,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/44212\/revisions\/44213"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=44212"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=44212"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=44212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}