{"id":96272,"date":"2024-05-22T19:03:14","date_gmt":"2024-05-22T11:03:14","guid":{"rendered":"https:\/\/lrxjmw.cn\/?p=96272"},"modified":"2024-05-22T19:03:14","modified_gmt":"2024-05-22T11:03:14","slug":"vps-iptables","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/vps-iptables.html","title":{"rendered":"VPS\u5b89\u5168\u4e4biptables\u57fa\u672c\u914d\u7f6e  \u8fdc\u79bb\u66b4\u529b\u7834\u89e3"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td style=\"padding: 5px 12px; width: 25px; font-size: 22px; text-align: center; background: #E8E8E8; line-height: 30px; color: #999;\">\u5bfc\u8bfb<\/td>\n<td style=\"padding: 10px 10px 12px; line-height: 20px;\"><strong>\u770b\u4e86\u4e0bsecure\u65e5\u5fd7\u548caccess\u7684\u65e5\u5fd7\uff0c\u4e00\u5927\u534a\u90fd\u662f\u66b4\u529b\u7834\u89e3\u548c\u626b\u63cf\uff0c\u867d\u7136\u54e5\u7684\u5bc6\u7801\u6781\u5176\u590d\u6742\uff0c\u4e0d\u8fc7\u603b\u88ab\u8fd9\u4e48\u6d88\u8017\u670d\u52a1\u5668\u8d44\u6e90\u4e5f\u4e0d\u662f\u4e8b\uff0c\u7d22\u6027\u8fd8\u662f\u628assh\u7aef\u53e3\u548cftp\u6539\u4e86\u7136\u540e\u5199\u4e2aiptables\u7a0d\u5fae\u4fdd\u62a4\u4e00\u4e0b\u597d\u4e86\u3002\u8fd8\u6709\u4e2a\u4e1c\u897f\u53ebFail2Ban\uff0c\u53ef\u4ee5\u81ea\u52a8\u68c0\u6d4b\u66b4\u529b\u7834\u89e3\uff0c\u5bc6\u7801\u9519\u8bef\u8d85\u8fc7\u4e00\u5b9a\u6b21\u6570\u5c31\u628a\u5bf9\u7aefban\u6389\uff0c\u4e0d\u8fc7\u6211\u5b9e\u5728\u662f\u4e0d\u60f3\u518d\u5f00\u4e00\u4e2a\u670d\u52a1\u4e86\uff0c\u6539\u7aef\u53e3\u5e94\u8be5\u95ee\u9898\u4e0d\u5927\u3002<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u53ea\u662f\u6700\u57fa\u672c\u7684\u914d\u7f6e\uff0c\u9632\u5fa1flood\u7684\u61d2\u5f97\u5199\u4e86\uff0c\u771f\u6709\u4eba\u8ddf\u6211\u6709\u4ec7\u8981DDOS\u6211\u7684\u8bdd\u90a3\u5c31\u6302\u4e86\u7b97\u4e86...<\/p>\n<p>#\u914d\u7f6e\uff0c\u7981\u6b62\u8fdb\uff0c\u5141\u8bb8\u51fa\uff0c\u5141\u8bb8\u56de\u73af\u7f51\u5361<\/p>\n<pre>\r\niptables -P INPUT DROP\r\niptables -P OUTPUT ACCEPT\r\niptables -A INPUT -i lo -j ACCEPT\r\n<\/pre>\n<p>#\u5141\u8bb8ping\uff0c\u4e0d\u5141\u8bb8\u5220\u4e86\u5c31\u884c<\/p>\n<pre>iptables -A INPUT -p icmp -j ACCEPT\r\n<\/pre>\n<p>#\u5141\u8bb8ssh<\/p>\n<pre>iptables -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT\r\n<\/pre>\n<p>#\u5141\u8bb8ftp<\/p>\n<pre>iptables -A INPUT -p tcp -m tcp --dport 20 -j ACCEPT\r\niptables -A INPUT -p tcp -m tcp --dport 21 -j ACCEPT\r\n<\/pre>\n<p>#\u5141\u8bb8ftp\u88ab\u52a8\u63a5\u53e3\u8303\u56f4\uff0c\u5728ftp\u914d\u7f6e\u6587\u4ef6\u91cc\u53ef\u4ee5\u8bbe\u7f6e<\/p>\n<pre>iptables -A INPUT -p tcp --dport 20000:30000 -j ACCEPT\r\n<\/pre>\n<p>#\u5b66\u4e60felix\uff0c\u628asmtp\u8bbe\u6210\u672c\u5730<\/p>\n<pre>iptables -A INPUT -p tcp -m tcp --dport 25 -j ACCEPT -s 127.0.0.1\r\niptables -A INPUT -p tcp -m tcp --dport 25 -j REJECT\r\n<\/pre>\n<p>#\u5141\u8bb8DNS<\/p>\n<pre>iptables -A INPUT -p tcp -m tcp --dport 53 -j ACCEPT\r\niptables -A INPUT -p udp -m udp --dport 53 -j ACCEPT\r\n<\/pre>\n<p>#\u5141\u8bb8http\u548chttps<\/p>\n<pre>iptables -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT\r\niptables -A INPUT -p tcp -m tcp --dport 443 -j ACCEPT\r\n<\/pre>\n<p>#\u5141\u8bb8\u72b6\u6001\u68c0\u6d4b\uff0c\u61d2\u5f97\u89e3\u91ca<\/p>\n<pre>iptables -A INPUT -p all -m state --state ESTABLISHED,RELATED -j ACCEPT\r\niptables -A INPUT -p all -m state --state INVALID,NEW -j DROP\r\n<\/pre>\n<p>#\u4fdd\u5b58\u914d\u7f6e<\/p>\n<pre>iptables-save > \/etc\/iptables\r\n<\/pre>\n<p>\u4fdd\u5b58\u4e4b\u540e\u5c31\u884c\u4e86\uff0cDebian\u4e0d\u9700\u8981\u5355\u72ec\u628aiptbles\u505a\u6210\u670d\u52a1\uff0c\u5177\u4f53\u5982\u4f55\u8ba9iptables\u5f00\u673a\u81ea\u52a8\u52a0\u8f7d\uff0c\u8bf7\u770b\u6587\u7ae0\u300aDebian\u4e0biptables\u9632\u706b\u5899\u5f00\u673a\u81ea\u52a8\u52a0\u8f7d\u5b9e\u73b0\u300b<\/p>\n<p>\u6211\u662f\u628a\u4e0a\u9762\u90a3\u6bb5\u548c\u4e0b\u9762\u8fd9\u6bb5\u90fd\u5199\u5230sh\u91cc\u4e86\uff0cstart{}\u548cstop{}\u3002\u9700\u8981\u4fee\u6539\u89c4\u5219\u7684\u65f6\u5019\u76f4\u63a5\u6e05\u7a7a\u4e86\u91cd\u5efa\u6bd4\u8f83\u597d\uff0c\u56e0\u4e3a\u89c4\u5219\u6709\u987a\u5e8f\u95ee\u9898\u3002<\/p>\n<p>#\u6e05\u7a7a\u914d\u7f6e<\/p>\n<pre>iptables -F\r\niptables -X\r\niptables -Z\r\niptables -P INPUT ACCEPT\r\niptables -P OUTPUT ACCEPT<\/pre>\n<blockquote>\n<p style=\"text-align: left; color: #88a6a4;\">\u539f\u6587\u6765\u81ea\uff1a<a href=\"http:\/\/www.centoscn.com\/CentosSecurity\/CentosSafe\/2015\/0614\/5659.html\" target=\"_blank\" rel=\"noopener\">http:\/\/www.centoscn.com\/CentosSecurity\/CentosSafe\/2015\/0614\/5659.html<\/a><\/p>\n<p style=\"text-align: left; color: #88a6a4;\">\u672c\u6587\u5730\u5740\uff1a<a href=\"https:\/\/lrxjmw.cn\/vps-iptables.html\" target=\"_blank\" rel=\"noopener\">https:\/\/lrxjmw.cn\/vps-iptables.html<\/a><span style=\"float: right;\">\u7f16\u8f91\uff1a\u4f55\u4e91\u8273\uff0c\u5ba1\u6838\u5458\uff1a\u9004\u589e\u5b9d<\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u5bfc\u8bfb \u770b\u4e86\u4e0bsecure\u65e5\u5fd7\u548caccess\u7684\u65e5\u5fd7\uff0c\u4e00\u5927\u534a\u90fd\u662f\u66b4\u529b\u7834\u89e3\u548c\u626b\u63cf\uff0c\u867d\u7136\u54e5\u7684\u5bc6\u7801\u6781\u5176\u590d\u6742\uff0c\u4e0d\u8fc7\u603b\u88ab\u8fd9\u4e48 [&hellip;]<\/p>\n","protected":false},"author":1479,"featured_media":96332,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-96272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/96272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/1479"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=96272"}],"version-history":[{"count":6,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/96272\/revisions"}],"predecessor-version":[{"id":291708,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/96272\/revisions\/291708"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/96332"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=96272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=96272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=96272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}