{"id":1569,"date":"2016-12-25T09:49:05","date_gmt":"2016-12-25T01:49:05","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=1569"},"modified":"2016-12-25T09:50:09","modified_gmt":"2016-12-25T01:50:09","slug":"iptables-%e7%ae%80%e5%8d%95%e7%9a%84%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/iptables-%e7%ae%80%e5%8d%95%e7%9a%84%e9%85%8d%e7%bd%ae\/","title":{"rendered":"web\u670d\u52a1\u5668iptables \u7b80\u5355\u7684\u914d\u7f6e"},"content":{"rendered":"<p>\u7531\u4e8e\u4f5c\u4e3aweb\u670d\u52a1\u5668\u6765\u4f7f\u7528\uff0c\u6240\u4ee5\u5bf9\u5916\u8981\u5f00\u653e 80 \u7aef\u53e3\uff0c\u53e6\u5916\u80af\u5b9a\u8981\u901a\u8fc7ssh\u8fdb\u884c\u670d\u52a1\u5668\u7ba1\u7406\uff0c22 \u7aef\u53e3\u4e5f\u8981\u5bf9\u5916\u5f00\u653e\uff0c\u5f53\u7136\u6700\u597d\u662f\u628assh\u670d\u52a1\u7684\u9ed8\u8ba4\u7aef\u53e3\u6539\u6389\uff0c\u5728\u516c\u7f51\u4e0a\u4f1a\u6709\u5f88\u591a\u4eba\u8bd5\u56fe\u7834\u89e3\u5bc6\u7801\u7684\uff0c\u5982\u679c\u4fee\u6539\u7aef\u53e3\uff0c\u8bb0\u5f97\u8981\u628a\u8be5\u7aef\u53e3\u5bf9\u5916\u5f00\u53d1\uff0c\u5426\u5219\u8fde\u4e0d\u4e0a\u5c31\u60b2\u5267\u4e86\u3002\u4e0b\u9762\u63d0\u4f9b\u914d\u7f6e\u89c4\u5219\u7684\u8be6\u7ec6\u8bf4\u660e\uff1a<\/p>\n<pre><span style=\"color: #ff0000;\">\u7b2c\u4e00\u6b65\uff1a\u6e05\u7a7a\u6240\u6709\u89c4\u5219\r\n\r\n\u5f53Chain INPUT (policy DROP)\u65f6\u6267\u884c\/sbin\/iptables -F\u540e\uff0c\u4f60\u5c06\u548c\u670d\u52a1\u5668\u65ad\u5f00\u8fde\u63a5\r\n\u6240\u6709\u5728\u6e05\u7a7a\u6240\u6709\u89c4\u5219\u524d\u628apolicy DROP\u8be5\u4e3aINPUT\uff0c\u9632\u6b62\u60b2\u5267\u53d1\u751f\uff0c\u5c0f\u5fc3\u5c0f\u5fc3\u518d\u5c0f\u5fc3\r\n\/sbin\/iptables -P INPUT ACCEPT\r\n\u6e05\u7a7a\u6240\u6709\u89c4\u5219\r\n\/sbin\/iptables -F\r\n\/sbin\/iptables -X\r\n\u8ba1\u6570\u5668\u7f6e0\r\n\/sbin\/iptables -Z\r\n\r\n\u7b2c\u4e8c\u6b65\uff1a\u8bbe\u7f6e\u89c4\u5219\r\n\r\n\u5141\u8bb8\u6765\u81ea\u4e8elo\u63a5\u53e3\u7684\u6570\u636e\u5305\uff0c\u5982\u679c\u6ca1\u6709\u6b64\u89c4\u5219\uff0c\u4f60\u5c06\u4e0d\u80fd\u901a\u8fc7127.0.0.1\u8bbf\u95ee\u672c\u5730\u670d\u52a1\uff0c\u4f8b\u5982ping 127.0.0.1\r\n\/sbin\/iptables -A INPUT -i lo -j ACCEPT \r\n\r\n\u5f00\u653eTCP\u534f\u8bae22\u7aef\u53e3\uff0c\u4ee5\u4fbf\u80fdssh\uff0c\u5982\u679c\u4f60\u662f\u5728\u6709\u56fa\u5b9aip\u7684\u573a\u6240\uff0c\u53ef\u4ee5\u4f7f\u7528 -s \u6765\u9650\u5b9a\u5ba2\u6237\u7aef\u7684ip\r\n\/sbin\/iptables -A INPUT -p tcp --dport 22 -j ACCEPT\r\n\r\n\u5f00\u653eTCP\u534f\u8bae80\u7aef\u53e3\u4f9bweb\u670d\u52a1\r\n\/sbin\/iptables -A INPUT -p tcp --dport 80 -j ACCEPT\r\n\r\n10.241.121.15\u662f\u53e6\u5916\u4e00\u53f0\u670d\u52a1\u5668\u7684\u5185\u7f51ip\uff0c\u7531\u4e8e\u4e4b\u95f4\u6709\u901a\u4fe1\uff0c\u63a5\u53d7\u6240\u6709\u6765\u81ea10.241.121.15\u7684TCP\u8bf7\u6c42\r\n\/sbin\/iptables -A INPUT -p tcp -s 10.241.121.15 -j ACCEPT\r\n\r\n\u63a5\u53d7ping\r\n\/sbin\/iptables -A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT\r\n\/sbin\/iptables -A INPUT -m state --state ESTABLISHED -j ACCEPT\r\n\r\n\u5c4f\u853d\u4e0a\u8ff0\u89c4\u5219\u4ee5\u5916\u7684\u6240\u6709\u8bf7\u6c42\uff0c\u4e0d\u53ef\u7f3a\u5c11\uff0c\u5426\u5219\u9632\u706b\u5899\u6ca1\u6709\u4efb\u4f55\u8fc7\u6ee4\u7684\u529f\u80fd\r\n\/sbin\/iptables -P INPUT DROP\r\n\r\n\u53ef\u4ee5\u4f7f\u7528 iptables -L -n \u67e5\u770b\u89c4\u5219\u662f\u5426\u751f\u6548<\/span><\/pre>\n<p>\u81f3\u6b64\u9632\u706b\u5899\u5c31\u7b97\u914d\u7f6e\u597d\uff0c\u4f46\u662f\u8fd9\u662f\u4e34\u65f6\u7684\uff0c\u5f53\u91cd\u542fiptables\u6216\u91cd\u542f\u673a\u5668\uff0c\u4e0a\u8ff0\u914d\u7f6e\u5c31\u4f1a\u88ab\u6e05\u7a7a\uff0c\u8981\u60f3\u6c38\u4e45\u751f\u6548\uff0c\u8fd8\u9700\u8981\u5982\u4e0b\u64cd\u4f5c\uff1a<\/p>\n<pre><span style=\"color: #ff0000;\">\/etc\/init.d\/iptables save   \r\n\u6216\r\nservice iptables save\r\n<\/span>\r\n\u6267\u884c\u4e0a\u8ff0\u547d\u4ee4\u53ef\u4ee5\u5728\u6587\u4ef6 \/etc\/sysconfig\/iptables \u4e2d\u770b\u5230\u914d\u7f6e<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u7531\u4e8e\u4f5c\u4e3aweb\u670d\u52a1\u5668\u6765\u4f7f\u7528\uff0c\u6240\u4ee5\u5bf9\u5916\u8981\u5f00\u653e 80 \u7aef\u53e3\uff0c\u53e6\u5916\u80af\u5b9a\u8981\u901a\u8fc7ssh\u8fdb\u884c\u670d\u52a1\u5668\u7ba1\u7406\uff0c22 \u7aef\u53e3\u4e5f\u8981\u5bf9\u5916 &#8230; <a title=\"web\u670d\u52a1\u5668iptables \u7b80\u5355\u7684\u914d\u7f6e\" class=\"read-more\" href=\"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/iptables-%e7%ae%80%e5%8d%95%e7%9a%84%e9%85%8d%e7%bd%ae\/\" aria-label=\"\u9605\u8bfb web\u670d\u52a1\u5668iptables \u7b80\u5355\u7684\u914d\u7f6e\">\u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[49],"tags":[499],"class_list":["post-1569","post","type-post","status-publish","format-standard","hentry","category-linux","tag-iptables-"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1569","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=1569"}],"version-history":[{"count":3,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1569\/revisions"}],"predecessor-version":[{"id":1572,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1569\/revisions\/1572"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=1569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=1569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=1569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}