{"id":70,"date":"2021-01-10T21:30:10","date_gmt":"2021-01-10T13:30:10","guid":{"rendered":"https:\/\/explause.com\/?p=70"},"modified":"2021-04-11T19:58:38","modified_gmt":"2021-04-11T11:58:38","slug":"iptables%e7%ae%80%e5%8d%95%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/devdoge.org\/?p=70","title":{"rendered":"iptables\u7b80\u5355\u64cd\u4f5c"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">CentOS\u7cfb\u7edf\u9ed8\u8ba4\u4f7f\u7528firewalld\u9632\u706b\u5899\uff0c\u4e24\u8005\u4e0d\u80fd\u540c\u65f6\u4f7f\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u67d0\u4e9b\u4f4e\u914dvps\u4e2d\uff0c\u5185\u5b58\u5bb9\u91cf\u4e0d\u591f\u5927\uff0ccpu\u4e5f\u5f88\u70c2\uff0c\u53ef\u4ee5\u8003\u8651\u7528iptables\uff0c\u53ef\u4ee5\u8282\u7701\u7ea630M\u5185\u5b58\u548c\u90e8\u5206cpu\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>\u5982\u679c\u5b89\u88c5\u4e86firewalld\u8981\u5148\u5378\u8f7d\uff0c\u5426\u5219\u8d77\u51b2\u7a81\u53ea\u80fd\u8fd0\u884cfirewalld\uff1a<\/em><\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl stop firewalld\nsystemctl disable firewalld\nyum remove firewalld<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b89\u88c5iptables\u548cipset\u7684\u670d\u52a1\uff0c\u5426\u5219\u5f00\u673a\u4e0d\u80fd\u81ea\u542f\u52a8\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>yum install iptables-services ipset-service -y<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bbe\u7f6eiptables\u548cipset\u5f00\u673a\u542f\u52a8(iptables\u670d\u52a1\u542bip6tables)\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl enable iptables\nsystemctl enable ip6tables\nsystemctl enable ipset<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u542f\u52a8iptables ip6tables ipset\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl start iptables\nsystemctl start ip6tables\nsystemctl start ipset<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u83b7\u53d6\u5f53\u524d\u7684\u9632\u706b\u5899\u89c4\u5219\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>iptables -nvL<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u83b7\u5f97\u9ed8\u8ba4\u7684\u9632\u706b\u5899\u89c4\u5219\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"254\" src=\"https:\/\/explause.com\/wp-content\/uploads\/2021\/01\/iptablesnvL-1024x254.png\" alt=\"\" class=\"wp-image-71\" srcset=\"https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/iptablesnvL-1024x254.png 1024w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/iptablesnvL-300x74.png 300w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/iptablesnvL-768x191.png 768w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/iptablesnvL.png 1474w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u9762\u7684\u89c4\u5219\u53ef\u4ee5\u5168\u90e8\u81ea\u5b9a\u4e49\uff0c\u4f46\u662f\u8981\u4e86\u89e3\u7684\u4e1c\u897f\u5f88\u591a\uff0c\u5efa\u8bae\u719f\u6089\u4e86iptables\u7684\u89c4\u5219\u540e\u518d\u81ea\u5df1\u5b9a\u5236\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\b\u81ea\u5df1\u5b9a\u5236iptables\u89c4\u5219\uff0c\u8981\u77e5\u9053\u9700\u8981\u8fc7\u6ee4\u7684IP\u5730\u5740\u3001\u7aef\u53e3\u53f7\uff0c\u534f\u8bae\u4fe1\u606f\u3002<strong><em>iptables\u91cc\u7684\u89c4\u5219\u53ea\u80fd\u5339\u914d\u4e00\u6b21<\/em><\/strong>\uff0c\u5339\u914d\u5230\u4e86\u5c31\u6309\u7167\u5bf9\u5e94\u7684\u52a8\u4f5c\u6267\u884c\u653e\u884c\u3001\u4e22\u5f03\u3001\u56de\u7edd\u8fd8\u662f\u522b\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>\u5982\u679c\u6ca1\u6709\u89c4\u5219\u88ab\u5339\u914d\u5230\uff0c\u5c31\u7528\u9ed8\u8ba4\u7b56\u7565\uff08\u5373policy ACCEPT\uff09\uff01<\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>\u5982\u679c\u8f93\u5165\u7684iptables\u547d\u4ee4\u91cc\u6ca1\u6709\u6307\u5b9aIP\u5730\u5740\u3001\u7aef\u53e3\u53f7\uff0c\u534f\u8bae\uff0c\u90a3\u9ed8\u8ba4\u5c31\u662f\u5168\u90e8\u5339\u914d\uff08\u5168\u90e8IP\u5730\u5740\u3001\u5168\u90e8\u7aef\u53e3\u53f7\uff0c\u5168\u90e8\u534f\u8bae\uff09\u3002<\/em><\/strong><\/p>\n\n\n\n<pre class=\"wp-block-verse\"><strong><em>iptables\u5e38\u7528\u7684\u52a8\u4f5c\uff1a\nACCEPT\uff08\u63a5\u53d7\uff09\nREJECT\uff08\u56de\u7edd\uff09\nDROP\uff08\u6254\u6389\uff09<\/em><\/strong><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff0c\u6539\u4e86SSH\u7aef\u53e3\u540e\u9700\u8981\u5728\u9632\u706b\u5899\u91cc\u653e\u884c\u65b0\u7684\u7aef\u53e3\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>iptables -I INPUT -p tcp --dport 60000 -j ACCEPT<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-verse\">iptables\u547d\u4ee4\u540e\u9762\u8ddf\u7740\u5982\u4f55\u64cd\u4f5c\u94fe\uff1a\n-I\uff08\u5927\u5199\u7684i\uff09\u610f\u601d\u662f\u63d2\u5165\uff0c\u9ed8\u8ba4\u4e3a\u63d2\u5165\u5230\u94fe\u7684\u6700\u524d\u9762\uff0c\u5728\u94fe\u7684\u540d\u5b57\u540e\u9762\u53ef\u4ee5\u8ddf\u4e2a\u6570\u5b57\u6307\u5b9a\u63d2\u5165\u5230\u7b2c\u51e0\u884c\uff1b\n-A                      \u610f\u601d\u662f\u9644\u52a0\u5728\u94fe\u7684\u6700\u540e\u9762\uff1b\n-D                      \u610f\u601d\u662f\u5220\u9664\uff0c\u94fe\u540d\u540e\u53ef\u4ee5\u8ddf\u4e2a\u6570\u5b57\u8868\u793a\u5220\u9664\u7b2c\u51e0\u884c\uff1b\n-R                      \u610f\u601d\u662f\u66ff\u6362\uff0c\u94fe\u540d\u540e\u9762\u8ddf\u8fd9\u4e00\u4e2a\u6570\u5b57\u8868\u793a\u66ff\u6362\u7b2c\u51e0\u884c\uff1b\n-F                      \u610f\u601d\u662f\u5220\u9664\u94fe\u91cc\u9762\u7684\u6240\u6709\u89c4\u5219\uff1b\n-Z                      \u5c06\u94fe\u7684\u8ba1\u6570\u5668\u5f52\u96f6\u3002<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>\u4e0a\u9762\u7684\u53c2\u6570\u540e\u9762\u5fc5\u987b\u8ddf\u7740\u94fe\u540d\uff0c\u94fe\u540d\u540e\u9762\u518d\u8ddf\u6570\u5b57\uff01<\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>iptables -D INPUT 4<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u610f\u601d\u662f\u5220\u9664filter\u8868\u7684input\u94fe\u7684\u7b2c\u56db\u884c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u663e\u793a\u89c4\u5219\u7684\u884c\u53f7\uff08\u52a0\u5165&#8211;line\u53c2\u6570\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>iptables -nvL --line<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c31\u4f1a\u5728\u6700\u5de6\u8fb9\uff08num\uff09\u663e\u793a\u884c\u53f7\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"241\" src=\"https:\/\/explause.com\/wp-content\/uploads\/2021\/01\/iptablesnvLline-1024x241.png\" alt=\"\" class=\"wp-image-73\" srcset=\"https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/iptablesnvLline-1024x241.png 1024w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/iptablesnvLline-300x71.png 300w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/iptablesnvLline-768x181.png 768w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/iptablesnvLline-1536x362.png 1536w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/iptablesnvLline.png 1554w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>iptables\u6307\u5b9aIP\u5730\u5740\u3001\u7aef\u53e3\u53f7\u3001\u52a8\u4f5c\u548c\u534f\u8bae\u7684\u53c2\u6570\uff1a<\/em><\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>-d        \u76ee\u7684\u5730IP\u5730\u5740\uff0c\u4e0d\u6307\u5b9a\u5c31\u9ed8\u8ba4\u76ee\u7684\u5730\u662f\u672c\u673a\u3002\n--dport   \u76ee\u7684\u5730\u7aef\u53e3\u53f7\uff08\u4e00\u822c\u6307\u672c\u673a\u60f3\u8981\u5f00\u653e\u7684\u7aef\u53e3\uff09\n-s        \u6e90IP\u5730\u5740\uff08\u5373\u5ba2\u6237\u7aef\u7684IP\uff09\uff0c\u53ef\u7528\u4e8e\u5236\u4f5c\u767d\u540d\u5355\n--sport   \u6e90\u7aef\u53e3\u53f7\uff08\u5373\u5ba2\u6237\u7aef\u7684\u7aef\u53e3\u53f7\uff09\uff0c\u53ef\u505a\u7279\u6b8a\u7684\u8fc7\u6ee4\n-p        \u534f\u8bae\uff0c\u53ef\u4ee5\u4e3atcp\u3001udp\u3001icmp\n-j        \u6267\u884c\u52a8\u4f5c\uff08DROP\u3001ACCEPT\u3001REJECT\u7b49\uff09<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff0c\u5c06SSH\u7aef\u53e3\u53f7\u6539\u621060000\u540e\u8981\u6dfb\u52a0\u5141\u8bb860000\u7aef\u53e3\u5e76\u5c06\u539f\u6765\u768422\u7aef\u53e3\u5c01\u6389\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5148\u6dfb\u52a060000\u7aef\u53e3\uff08SSH\u4f7f\u7528TCP\u534f\u8bae\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>iptables -I INPUT -p tcp --dport 60000 -j ACCEPT<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5217\u51fa\u6240\u6709\u89c4\u5219\u540e\u662f\u8fd9\u6837\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"261\" src=\"https:\/\/explause.com\/wp-content\/uploads\/2021\/01\/add-1-1024x261.png\" alt=\"\" class=\"wp-image-75\" srcset=\"https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/add-1-1024x261.png 1024w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/add-1-300x76.png 300w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/add-1-768x195.png 768w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/add-1-1536x391.png 1536w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/add-1.png 1540w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<pre class=\"wp-block-verse\">\u7136\u540e\u5220\u9664\u539f\u5148\u7684\u89c4\u5219\uff0c\u53ef\u4ee5\u6309\u7167\u884c\u53f7\u5220\uff0c\u4f46\u662f\u5343\u4e07\u6ce8\u610f\n<strong><em><span style=\"color:#ff0004;background-color:#000\" class=\"has-inline-color\">\u5220\u4e4b\u524d\u770b\u4e00\u4e0b\u884c\u53f7\u522b\u5220\u9519\uff0c\u4e0d\u7136\u53ef\u80fd\u4f1a\u88ab\u5173\u5728\u5916\u9762\uff01<\/span><\/em><\/strong><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u976222\u7aef\u53e3\u6240\u5728\u89c4\u5219\u7684\u884c\u53f7\u4e3a5\uff0c\u5220\u9664\u5c31\u597d\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>iptables -D INPUT 5<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u7ec8\u7ed3\u679c\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/explause.com\/wp-content\/uploads\/2021\/01\/del-1024x241.png\" alt=\"\" class=\"wp-image-76\" width=\"750\" height=\"176\" srcset=\"https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/del-1024x241.png 1024w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/del-300x71.png 300w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/del-768x181.png 768w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/del-1536x362.png 1536w, https:\/\/devdoge.org\/wp-content\/uploads\/2021\/01\/del.png 1538w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fdd\u5b58iptables\u89c4\u5219\u91cd\u542f\u4e0d\u4f1a\u4e22\u5931\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>service iptables save<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5173\u95ediptables\u3001ip6tables\u548cipset\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl stop iptables\nsystemctl stop ip6tables\nsystemctl stop ipset<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>\u5f53\u7136\u4e86\uff0c\u4ee5\u4e0a\u64cd\u4f5c\u662f\u7edd\u5bf9\u4e0d\u591f\u7684\uff0c\u8fd8\u8981\u5b66\u4e60\u66f4\u591a\u624d\u80fd\u52a0\u56fa\u4f60\u7684\u7cfb\u7edf\uff01<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u542f\u52a8\u3001\u505c\u6b62iptables\uff0c\u547d\u4ee4\u7684\u683c\u5f0f\uff0c\u4ee5\u53ca\u589e\u51cf\u89c4\u5219\u7684\u64cd\u4f5c\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[12],"class_list":["post-70","post","type-post","status-publish","format-standard","hentry","category-ipt","tag-iptables"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/devdoge.org\/index.php?rest_route=\/wp\/v2\/posts\/70","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devdoge.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devdoge.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devdoge.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/devdoge.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=70"}],"version-history":[{"count":2,"href":"https:\/\/devdoge.org\/index.php?rest_route=\/wp\/v2\/posts\/70\/revisions"}],"predecessor-version":[{"id":152,"href":"https:\/\/devdoge.org\/index.php?rest_route=\/wp\/v2\/posts\/70\/revisions\/152"}],"wp:attachment":[{"href":"https:\/\/devdoge.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=70"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devdoge.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=70"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devdoge.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=70"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}