{"id":10020773,"date":"2025-04-27T00:45:46","date_gmt":"2025-04-26T16:45:46","guid":{"rendered":"https:\/\/itmax.cn\/?p=10020773"},"modified":"2025-04-27T00:45:46","modified_gmt":"2025-04-26T16:45:46","slug":"ubuntu-22-04-%e6%9c%8d%e5%8a%a1%e5%99%a8-mysql-3306%e8%bf%9c%e7%a8%8b%e8%bf%9e%e6%8e%a5%e5%a4%b1%e8%b4%a5%e6%8e%92%e6%9f%a5%e4%b8%8e%e8%a7%a3%e5%86%b3","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10020773","title":{"rendered":"Ubuntu 22.04 \u670d\u52a1\u5668 MySQL 3306\u8fdc\u7a0b\u8fde\u63a5\u5931\u8d25\u6392\u67e5\u4e0e\u89e3\u51b3"},"content":{"rendered":"

\u4e00 \u80cc\u666f<\/h2>\n

\u6700\u8fd1\u5728\u4e00\u53f0\u963f\u91cc\u4e91\u8d2d\u4e70\u7684 Ubuntu 22.04 \u670d\u52a1\u5668\u4e0a\u5c31\u78b0\u5230\u4e86\u4e00\u4e2a\u68d8\u624b\u7684\u72b6\u51b5\uff1a\u670d\u52a1\u5668\u91cd\u542f\u540e\uff0c\u539f\u672c\u6b63\u5e38\u8fd0\u884c\u7684 MySQL \u6570\u636e\u5e93\u65e0\u6cd5\u901a\u8fc7 3306 \u7aef\u53e3\u8fdb\u884c\u8fdc\u7a0b\u8bbf\u95ee\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u8be6\u7ec6\u8bb0\u5f55\u6574\u4e2a\u6392\u67e5\u4e0e\u89e3\u51b3\u7684\u8fc7\u7a0b\uff0c\u5e0c\u671b\u80fd\u4e3a\u9047\u5230\u7c7b\u4f3c\u95ee\u9898\u7684\u5c0f\u4f19\u4f34\u63d0\u4f9b\u4e00\u4e9b\u53c2\u8003\u3002<\/p>\n

\u4e8c \u95ee\u9898\u521d\u73b0<\/h2>\n

\u670d\u52a1\u5668\u91cd\u542f\u540e\uff0c\u5c1d\u8bd5\u4f7f\u7528\u5ba2\u6237\u7aef\u8fdc\u7a0b\u8fde\u63a5 MySQL \u6570\u636e\u5e93\uff0c\u5374\u53d1\u73b0\u8fde\u63a5\u5931\u8d25\u3002\u7b2c\u4e00\u53cd\u5e94\u662f\u68c0\u67e5\u963f\u91cc\u4e91\u7684\u5b89\u5168\u7ec4\u8bbe\u7f6e\uff0c\u786e\u8ba4 3306 \u7aef\u53e3\u5df2\u5f00\u653e\u3002\u4e3a\u4e86\u8fdb\u4e00\u6b65\u5b9a\u4f4d\u95ee\u9898\uff0c\u5728\u670d\u52a1\u5668\u5185\u90e8\u4f7f\u7528127.0.0.1\u8fdb\u884c\u8fde\u63a5\uff0c\u53d1\u73b0\u80fd\u591f\u6b63\u5e38\u8fde\u63a5\uff0c\u8fd9\u8bf4\u660e MySQL \u670d\u52a1\u672c\u8eab\u8fd0\u884c\u662f\u6b63\u5e38\u7684\uff0c\u95ee\u9898\u51fa\u5728\u8fdc\u7a0b\u8bbf\u95ee\u7684\u73af\u8282\u3002<\/p>\n

\u4e09 \u6392\u67e5\u8fc7\u7a0b<\/h2>\n

\u4f7f\u7528nmap\u5de5\u5177\u5bf9\u670d\u52a1\u5668\u8fdb\u884c\u7aef\u53e3\u626b\u63cf\uff0c\u547d\u4ee4\u4e3anmap <\u670d\u52a1\u5668IP>\uff0c\u626b\u63cf\u7ed3\u679c\u663e\u793a\uff1a<\/p>\n

PORT     STATE    SERVICE\n3306\/tcp filtered mysql<\/code><\/pre>\n
filtered\u72b6\u6001\u8868\u660e\u7aef\u53e3\u53ef\u80fd\u88ab\u9632\u706b\u5899\u6216\u5176\u4ed6\u5b89\u5168\u673a\u5236\u62e6\u622a\u3002
\u63a5\u7740\uff0c\u67e5\u770b Ubuntu \u7cfb\u7edf\u7684\u9632\u706b\u5899\u72b6\u6001\uff0c\u6267\u884cufw status\uff0c\u7ed3\u679c\u663e\u793aStatus: inactive\uff0c\u8bf4\u660e Ubuntu \u81ea\u5e26\u7684\u9632\u706b\u5899ufw\u5e76\u672a\u542f\u7528\uff0c\u90a3\u4e48\u95ee\u9898\u53ef\u80fd\u51fa\u5728iptables\u4e0a\u3002
\u6267\u884ciptables -nL\u547d\u4ee4\u67e5\u770biptables\u89c4\u5219\uff0c\u8f93\u51fa\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n
Chain INPUT (policy ACCEPT)\ntarget     prot opt source               destination\nACCEPT     all  --  0.0.0.0\/0            0.0.0.0\/0\nACCEPT     all  --  0.0.0.0\/0            0.0.0.0\/0            state RELATED,ESTABLISHED\nACCEPT     tcp  --  0.0.0.0\/0            0.0.0.0\/0            tcp dpt:22\nACCEPT     tcp  --  0.0.0.0\/0            0.0.0.0\/0            tcp dpt:80\nACCEPT     tcp  --  0.0.0.0\/0            0.0.0.0\/0            tcp dpt:443\nDROP       tcp  --  0.0.0.0\/0            0.0.0.0\/0            tcp dpt:3306\nACCEPT     icmp --  0.0.0.0\/0            0.0.0.0\/0            icmptype 8\nACCEPT     all  --  0.0.0.0\/0            0.0.0.0\/0\nACCEPT     all  --  0.0.0.0\/0            0.0.0.0\/0            state RELATED,ESTABLISHED\nACCEPT     tcp  --  0.0.0.0\/0            0.0.0.0\/0            tcp dpt:22\nACCEPT     tcp  --  0.0.0.0\/0            0.0.0.0\/0            tcp dpt:80\nACCEPT     tcp  --  0.0.0.0\/0            0.0.0.0\/0            tcp dpt:443\nDROP       tcp  --  0.0.0.0\/0            0.0.0.0\/0            tcp dpt:3306\nACCEPT     icmp --  0.0.0.0\/0            0.0.0.0\/0            icmptype 8<\/code><\/pre>\n
\u4ece\u8f93\u51fa\u4e2d\u53ef\u4ee5\u6e05\u6670\u770b\u5230\uff0ciptables\u7684INPUT\u94fe\u4e2d\u5b58\u5728\u9488\u5bf93306\u7aef\u53e3\u7684DROP\u89c4\u5219\uff0c\u8fd9\u6b63\u662f\u5bfc\u81f4\u8fdc\u7a0b\u65e0\u6cd5\u8fde\u63a5 MySQL \u7684\u539f\u56e0\u3002<\/p>\n
\u56db \u95ee\u9898\u89e3\u51b3<\/h2>\n
\u660e\u786e\u95ee\u9898\u540e\uff0c\u89e3\u51b3\u8d77\u6765\u5c31\u7b80\u5355\u4e86\u3002\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u5728INPUT\u94fe\u4e2d\u63d2\u5165\u4e00\u6761\u5141\u8bb83306\u7aef\u53e3\u901a\u8fc7\u7684\u89c4\u5219\uff1a<\/p>\n
iptables -I INPUT -p tcp --dport 3306 -j ACCEPT<\/code><\/pre>\n
\u6267\u884c\u5b8c\u8fd9\u6761\u547d\u4ee4\u540e\uff0c\u518d\u6b21\u5c1d\u8bd5\u8fdc\u7a0b\u8fde\u63a5 MySQL \u6570\u636e\u5e93\u6210\u529f\u8fde\u63a5\u3002<\/p>\n
\u4e94 \u603b\u7ed3\u4e0e\u5efa\u8bae<\/h2>\n
\u95ee\u9898\u6392\u67e5\u601d\u8def\uff1a\u9047\u5230\u670d\u52a1\u65e0\u6cd5\u8bbf\u95ee\u7684\u95ee\u9898\u65f6\uff0c\u8981\u9010\u6b65\u7f29\u5c0f\u6392\u67e5\u8303\u56f4\u3002\u5148\u68c0\u67e5\u5916\u90e8\u7f51\u7edc\u8bbe\u7f6e\uff08\u5982\u5b89\u5168\u7ec4\uff09\uff0c\u518d\u68c0\u67e5\u670d\u52a1\u5668\u5185\u90e8\u7684\u9632\u706b\u5899\u548c\u670d\u52a1\u914d\u7f6e\uff0c\u8fd9\u6837\u53ef\u4ee5\u66f4\u9ad8\u6548\u5730\u5b9a\u4f4d\u95ee\u9898\u3002
\u89c4\u5219\u6301\u4e45\u5316\uff1a\u4e0a\u8ff0\u89e3\u51b3\u65b9\u6cd5\u4e2d\u6dfb\u52a0\u7684iptables\u89c4\u5219\u5728\u670d\u52a1\u5668\u91cd\u542f\u540e\u4f1a\u4e22\u5931\u3002\u5982\u679c\u5e0c\u671b\u89c4\u5219\u6c38\u4e45\u751f\u6548\uff0c\u53ef\u4ee5\u7528iptables-persistent\u5de5\u5177\u5c06\u89c4\u5219\u4fdd\u5b58\uff0c\u6216\u8005\u4f7f\u7528systemd\u670d\u52a1\u7ba1\u7406\u6765\u5b9e\u73b0\u89c4\u5219\u7684\u81ea\u52a8\u52a0\u8f7d\u3002<\/p>\n
https:\/\/segmentfault.com\/a\/1190000046477173<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e00 \u80cc\u666f \u6700\u8fd1\u5728\u4e00\u53f0\u963f\u91cc\u4e91\u8d2d\u4e70\u7684 Ubuntu 22.04 \u670d\u52a1\u5668\u4e0a\u5c31\u78b0\u5230\u4e86\u4e00\u4e2a\u68d8\u624b\u7684\u72b6\u51b5\uff1a\u670d\u52a1\u5668\u91cd\u542f\u540e\uff0c\u539f\u672c […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10020773","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10020773","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10020773"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10020773\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10020773"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10020773"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10020773"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}