{"id":16950,"date":"2024-11-18T16:33:48","date_gmt":"2024-11-18T08:33:48","guid":{"rendered":"https:\/\/fwq.ai\/blog\/16950\/"},"modified":"2024-11-18T16:33:48","modified_gmt":"2024-11-18T08:33:48","slug":"%e6%8f%90%e9%ab%98linux%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%89%e5%85%a8%e6%80%a7%e7%9a%84%e5%85%b3%e9%94%ae%e5%91%bd%e4%bb%a4%e4%b9%8b%e8%b7%af","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/16950\/","title":{"rendered":"\u63d0\u9ad8Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u5173\u952e\u547d\u4ee4\u4e4b\u8def"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/887\/227\/169422943435826.jpg\" class=\"aligncenter\" title=\"\u63d0\u9ad8Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u5173\u952e\u547d\u4ee4\u4e4b\u8def\u63d2\u56fe\" alt=\"\u63d0\u9ad8Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u5173\u952e\u547d\u4ee4\u4e4b\u8def\u63d2\u56fe\" \/><\/p>\n<p>\u63d0\u9ad8Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u5173\u952e\u547d\u4ee4\u4e4b\u8def<\/p>\n<p>\u968f\u7740\u4e92\u8054\u7f51\u7684\u5feb\u901f\u53d1\u5c55\uff0cLinux\u670d\u52a1\u5668\u6210\u4e3a\u4e86\u8bb8\u591a\u4f01\u4e1a\u548c\u4e2a\u4eba\u7684\u9996\u9009\u3002\u7136\u800c\uff0c\u7531\u4e8e\u7f51\u7edc\u73af\u5883\u7684\u590d\u6742\u6027\u548c\u6076\u610f\u653b\u51fb\u7684\u4e0d\u65ad\u589e\u52a0\uff0c\u4fdd\u62a4Linux\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u53d8\u5f97\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5173\u952e\u7684Linux\u547d\u4ee4\uff0c\u5e2e\u52a9\u60a8\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002<\/p>\n<ol>\n<li>\u4f7f\u7528\u9632\u706b\u5899<\/li>\n<\/ol>\n<p>\u9632\u706b\u5899\u662f\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u672a\u7ecf\u6388\u6743\u8bbf\u95ee\u548c\u6076\u610f\u8f6f\u4ef6\u653b\u51fb\u7684\u91cd\u8981\u5de5\u5177\u3002\u5728Linux\u4e2d\uff0c\u4f7f\u7528iptables\u547d\u4ee4\u53ef\u4ee5\u914d\u7f6e\u548c\u7ba1\u7406\u9632\u706b\u5899\u89c4\u5219\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5141\u8bb8SSH\u8bbf\u95ee\uff0c\u540c\u65f6\u62d2\u7edd\u5176\u5b83\u4e0d\u5fc5\u8981\u7684\u5165\u7ad9\u8fde\u63a5\uff1a<\/p>\n<pre>sudo iptables -A INPUT -p tcp --dport 22 -j ACCEPT\nsudo iptables -A INPUT -j DROP<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u66f4\u65b0\u8f6f\u4ef6\u5305<\/li>\n<\/ol>\n<p>\u53ca\u65f6\u66f4\u65b0\u670d\u52a1\u5668\u4e0a\u7684\u8f6f\u4ef6\u5305\u662f\u63d0\u9ad8\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u5173\u952e\u3002\u901a\u8fc7\u4fdd\u6301\u8f6f\u4ef6\u5305\u5904\u4e8e\u6700\u65b0\u7248\u672c\uff0c\u53ef\u4ee5\u586b\u8865\u5b89\u5168\u6f0f\u6d1e\uff0c\u964d\u4f4e\u7cfb\u7edf\u88ab\u653b\u51fb\u7684\u98ce\u9669\u3002<\/p>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u66f4\u65b0\u8f6f\u4ef6\u5305\uff1a<\/p>\n<pre>sudo apt-get update\nsudo apt-get upgrade<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u7981\u7528\u4e0d\u5fc5\u8981\u7684\u670d\u52a1<\/li>\n<\/ol>\n<p>Linux\u670d\u52a1\u5668\u901a\u5e38\u4f1a\u5b89\u88c5\u4e00\u4e9b\u9ed8\u8ba4\u7684\u670d\u52a1\uff0c\u5982FTP\u548cTelnet\u3002\u7136\u800c\uff0c\u8fd9\u4e9b\u670d\u52a1\u53ef\u80fd\u4f1a\u5e26\u6765\u5b89\u5168\u98ce\u9669\u3002<\/p>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5\u6b63\u5728\u8fd0\u884c\u7684\u670d\u52a1\uff0c\u5e76\u7981\u7528\u4e0d\u9700\u8981\u7684\u670d\u52a1\uff1a<\/p>\n<pre>sudo service --status-all\nsudo service [service_name] stop\nsudo update-rc.d -f [service_name] remove<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u5bc6\u7801\u7b56\u7565<\/li>\n<\/ol>\n<p>\u4e00\u4e2a\u5f3a\u5927\u7684\u5bc6\u7801\u7b56\u7565\u53ef\u4ee5\u9632\u6b62\u6076\u610f\u7528\u6237\u901a\u8fc7\u731c\u6d4b\u5bc6\u7801\u8fdb\u884c\u767b\u5f55\u3002Linux\u63d0\u4f9b\u4e86passwd\u548cchage\u547d\u4ee4\u7528\u4e8e\u8bbe\u7f6e\u548c\u7ba1\u7406\u7528\u6237\u5bc6\u7801\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8bbe\u7f6e\u6700\u5c0f\u5bc6\u7801\u957f\u5ea6\u548c\u5bc6\u7801\u8fc7\u671f\u7b56\u7565\uff1a<\/p>\n<pre>sudo vi \/etc\/login.defs\n\nPASS_MIN_LEN 8\nPASS_MAX_DAYS 90<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u7136\u540e\uff0c\u4f7f\u7528passwd\u547d\u4ee4\u4e3a\u7528\u6237\u8bbe\u7f6e\u5bc6\u7801\uff1a<\/p>\n<pre>sudo passwd [username]<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u542f\u7528SSH\u5bc6\u94a5\u767b\u5f55<\/li>\n<\/ol>\n<p>SSH\u5bc6\u94a5\u767b\u5f55\u6bd4\u5bc6\u7801\u767b\u5f55\u66f4\u5b89\u5168\u3002\u901a\u8fc7\u4f7f\u7528\u516c\u94a5\u548c\u79c1\u94a5\u5bf9\uff0c\u53ef\u4ee5\u9632\u6b62\u6076\u610f\u7528\u6237\u901a\u8fc7\u66b4\u529b\u7834\u89e3\u5bc6\u7801\u8fdb\u884c\u767b\u5f55\u3002<\/p>\n<p>\u9996\u5148\uff0c\u4e3a\u670d\u52a1\u5668\u751f\u6210SSH\u5bc6\u94a5\u5bf9\uff1a<\/p>\n<pre>ssh-keygen<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u7136\u540e\uff0c\u5c06\u516c\u94a5\u590d\u5236\u5230\u670d\u52a1\u5668\u4e0a\u7684~\/.ssh\/authorized_keys\u6587\u4ef6\u4e2d\uff1a<\/p>\n<pre>cat ~\/.ssh\/id_rsa.pub | ssh [username]@[server_address] \"cat &amp;gt;&amp;gt; ~\/.ssh\/authorized_keys\"<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u73b0\u5728\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u79c1\u94a5\u8fdb\u884cSSH\u767b\u5f55\u3002<\/p>\n<ol>\n<li>\u76d1\u63a7\u7cfb\u7edf\u65e5\u5fd7<\/li>\n<\/ol>\n<p>\u76d1\u63a7\u670d\u52a1\u5668\u7684\u7cfb\u7edf\u65e5\u5fd7\u53ef\u4ee5\u5e2e\u52a9\u60a8\u8bc6\u522b\u6f5c\u5728\u7684\u5b89\u5168\u95ee\u9898\u548c\u5f02\u5e38\u6d3b\u52a8\u3002Linux\u4f7f\u7528syslogd\u670d\u52a1\u6765\u8bb0\u5f55\u7cfb\u7edf\u65e5\u5fd7\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770bsyslog\u65e5\u5fd7\u6587\u4ef6\uff1a<\/p>\n<pre>sudo tail -f \/var\/log\/syslog<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u6587\u4ef6\u6743\u9650<\/li>\n<\/ol>\n<p>\u6b63\u786e\u8bbe\u7f6e\u6587\u4ef6\u548c\u76ee\u5f55\u7684\u6743\u9650\u662f\u4fdd\u62a4\u670d\u52a1\u5668\u5b89\u5168\u7684\u5fc5\u8981\u63aa\u65bd\u3002\u4f7f\u7528chmod\u548cchown\u547d\u4ee4\u53ef\u4ee5\u4e3a\u6587\u4ef6\u548c\u76ee\u5f55\u8bbe\u7f6e\u5408\u9002\u7684\u6743\u9650\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8bbe\u7f6e\u76ee\u5f55\u6743\u9650\u4e3a750\uff1a<\/p>\n<pre>sudo chmod 750 [directory_name]<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u603b\u7ed3<\/p>\n<p>\u5728\u4fdd\u62a4Linux\u670d\u52a1\u5668\u7684\u5b89\u5168\u65b9\u9762\uff0c\u638c\u63e1\u4e00\u4e9b\u5173\u952e\u7684\u547d\u4ee4\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u9632\u706b\u5899\u3001\u8f6f\u4ef6\u5305\u66f4\u65b0\u3001\u7981\u7528\u4e0d\u5fc5\u8981\u7684\u670d\u52a1\u3001\u5bc6\u7801\u7b56\u7565\u3001SSH\u5bc6\u94a5\u767b\u5f55\u3001\u7cfb\u7edf\u65e5\u5fd7\u76d1\u63a7\u548c\u6587\u4ef6\u6743\u9650\u7b49\u5173\u952e\u547d\u4ee4\u3002\u901a\u8fc7\u6b63\u786e\u7406\u89e3\u548c\u4f7f\u7528\u8fd9\u4e9b\u547d\u4ee4\uff0c\u60a8\u53ef\u4ee5\u63d0\u9ad8Linux\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\uff0c\u51cf\u5c11\u6f5c\u5728\u7684\u5b89\u5168\u5a01\u80c1\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u63d0\u9ad8Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u5173\u952e\u547d\u4ee4\u4e4b\u8def\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63d0\u9ad8Linux\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u5173\u952e\u547d\u4ee4\u4e4b\u8def \u968f\u7740\u4e92\u8054\u7f51\u7684\u5feb\u901f\u53d1\u5c55\uff0cLinux\u670d\u52a1\u5668\u6210\u4e3a\u4e86\u8bb8\u591a\u4f01\u4e1a\u548c\u4e2a\u4eba\u7684\u9996\u9009\u3002\u7136\u800c\uff0c\u7531\u4e8e\u7f51\u7edc\u73af\u5883\u7684\u590d\u6742\u6027\u548c\u6076\u610f\u653b\u51fb\u7684\u4e0d\u65ad\u589e\u52a0\uff0c\u4fdd\u62a4Linux\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u53d8\u5f97\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5173\u952e\u7684Linux\u547d\u4ee4\uff0c\u5e2e\u52a9\u60a8\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002 \u4f7f\u7528\u9632\u706b\u5899 \u9632\u706b\u5899\u662f\u4fdd\u62a4\u670d\u52a1\u5668\u514d\u53d7\u672a\u7ecf\u6388\u6743\u8bbf\u95ee\u548c\u6076\u610f\u8f6f\u4ef6\u653b\u51fb\u7684\u91cd\u8981\u5de5\u5177\u3002\u5728Linux\u4e2d\uff0c\u4f7f\u7528iptables\u547d\u4ee4\u53ef\u4ee5\u914d\u7f6e\u548c\u7ba1\u7406\u9632\u706b\u5899\u89c4\u5219\u3002 \u4f8b\u5982\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5141\u8bb8SSH\u8bbf\u95ee\uff0c\u540c\u65f6\u62d2\u7edd\u5176\u5b83\u4e0d\u5fc5\u8981\u7684\u5165\u7ad9\u8fde\u63a5\uff1a sudo iptables -A INPUT -p tcp &#8211;dport 22 -j ACCEPT sudo iptables -A INPUT -j DROP \u767b\u5f55\u540e\u590d\u5236 \u66f4\u65b0\u8f6f\u4ef6\u5305 \u53ca\u65f6\u66f4\u65b0\u670d\u52a1\u5668\u4e0a\u7684\u8f6f\u4ef6\u5305\u662f\u63d0\u9ad8\u670d\u52a1\u5668\u5b89\u5168\u6027\u7684\u5173\u952e\u3002\u901a\u8fc7\u4fdd\u6301\u8f6f\u4ef6\u5305\u5904\u4e8e\u6700\u65b0\u7248\u672c\uff0c\u53ef\u4ee5\u586b\u8865\u5b89\u5168\u6f0f\u6d1e\uff0c\u964d\u4f4e\u7cfb\u7edf\u88ab\u653b\u51fb\u7684\u98ce\u9669\u3002 \u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u66f4\u65b0\u8f6f\u4ef6\u5305\uff1a sudo apt-get update sudo apt-get upgrade \u767b\u5f55\u540e\u590d\u5236 \u7981\u7528\u4e0d\u5fc5\u8981\u7684\u670d\u52a1 Linux\u670d\u52a1\u5668\u901a\u5e38\u4f1a\u5b89\u88c5\u4e00\u4e9b\u9ed8\u8ba4\u7684\u670d\u52a1\uff0c\u5982FTP\u548cTelnet\u3002\u7136\u800c\uff0c\u8fd9\u4e9b\u670d\u52a1\u53ef\u80fd\u4f1a\u5e26\u6765\u5b89\u5168\u98ce\u9669\u3002 \u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5\u6b63\u5728\u8fd0\u884c\u7684\u670d\u52a1\uff0c\u5e76\u7981\u7528\u4e0d\u9700\u8981\u7684\u670d\u52a1\uff1a sudo service &#8211;status-all sudo service [service_name] stop sudo update-rc.d -f [service_name] remove \u767b\u5f55\u540e\u590d\u5236 \u5bc6\u7801\u7b56\u7565 \u4e00\u4e2a\u5f3a\u5927\u7684\u5bc6\u7801\u7b56\u7565\u53ef\u4ee5\u9632\u6b62\u6076\u610f\u7528\u6237\u901a\u8fc7\u731c\u6d4b\u5bc6\u7801\u8fdb\u884c\u767b\u5f55\u3002Linux\u63d0\u4f9b\u4e86passwd\u548cchage\u547d\u4ee4\u7528\u4e8e\u8bbe\u7f6e\u548c\u7ba1\u7406\u7528\u6237\u5bc6\u7801\u3002 \u4f8b\u5982\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8bbe\u7f6e\u6700\u5c0f\u5bc6\u7801\u957f\u5ea6\u548c\u5bc6\u7801\u8fc7\u671f\u7b56\u7565\uff1a sudo vi \/etc\/login.defs PASS_MIN_LEN [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-16950","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/16950","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=16950"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/16950\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=16950"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=16950"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=16950"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}