{"id":211594,"date":"2023-12-22T10:34:23","date_gmt":"2023-12-22T02:34:23","guid":{"rendered":"https:\/\/www.idc.net\/help\/211594\/"},"modified":"2023-12-22T10:34:23","modified_gmt":"2023-12-22T02:34:23","slug":"linux-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%89%e5%85%a8%e7%ad%96%e7%95%a5%e6%8a%80%e5%b7%a7%ef%bc%9a%e7%a1%ae%e4%bf%9d%e9%85%8d%e7%bd%ae%e4%ba%86%e5%af%86%e7%a0%81%e5%88%9b%e5%bb%ba%e8%a6%81%e6%b1%82","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/211594\/","title":{"rendered":"Linux \u670d\u52a1\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u786e\u4fdd\u914d\u7f6e\u4e86\u5bc6\u7801\u521b\u5efa\u8981\u6c42"},"content":{"rendered":"Linux \u670d\u52a1\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u786e\u4fdd\u914d\u7f6e\u4e86\u5bc6\u7801\u521b\u5efa\u8981\u6c42<\/title><\/p>\n<h1 id=\"linux-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%89%e5%85%a8%e7%ad%96%e7%95%a5%e6%8a%80%e5%b7%a7%ef%bc%9a%e7%a1%ae%e4%bf%9d%e9%85%8d%e7%bd%ae%e4%ba%86%e5%af%86%e7%a0%81%e5%88%9b%e5%bb%ba%e8%a6%81%e6%b1%82-AenEeiChuD\">Linux \u670d\u52a1\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u786e\u4fdd\u914d\u7f6e\u4e86\u5bc6\u7801\u521b\u5efa\u8981\u6c42<\/h1>\n<p>\u5728\u4fdd\u62a4 Linux \u670d\u52a1\u5668\u514d\u53d7\u672a\u7ecf\u6388\u6743\u8bbf\u95ee\u7684\u540c\u65f6\uff0c\u914d\u7f6e\u5f3a\u5bc6\u7801\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u786e\u4fdd Linux \u670d\u52a1\u5668\u5bc6\u7801\u5b89\u5168\u7684\u7b56\u7565\u548c\u6280\u5de7\u3002<\/p>\n<h2 id=\"1-%e5%af%86%e7%a0%81%e5%a4%8d%e6%9d%82%e6%80%a7%e8%a6%81%e6%b1%82-AenEeiChuD\">1. \u5bc6\u7801\u590d\u6742\u6027\u8981\u6c42<\/h2>\n<p>\u4e3a\u4e86\u589e\u52a0\u5bc6\u7801\u7684\u5b89\u5168\u6027\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u5bc6\u7801\u590d\u6742\u6027\u8981\u6c42\u6765\u786e\u4fdd\u7528\u6237\u521b\u5efa\u5f3a\u5bc6\u7801\u3002\u5728 Linux \u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539\u5bc6\u7801\u7b56\u7565\u6587\u4ef6\u6765\u5b9e\u73b0\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6253\u5f00\u5bc6\u7801\u7b56\u7565\u6587\u4ef6\uff1a<\/p>\n<pre><code>sudo vi \/etc\/pam.d\/common-password\n<\/code><\/pre>\n<p>\u5728\u6587\u4ef6\u4e2d\u627e\u5230\u5305\u542b \"password requisite\" \u7684\u884c\uff0c\u5e76\u6dfb\u52a0\u4ee5\u4e0b\u53c2\u6570\uff1a<\/p>\n<pre><code>password requisite pam_cracklib.so retry=3 minlen=8 difok=3 ucredit=-1 lcredit=-1 dcredit=-1 ocredit=-1\n<\/code><\/pre>\n<p>\u8fd9\u4e9b\u53c2\u6570\u5c06\u5f3a\u5236\u8981\u6c42\u5bc6\u7801\u81f3\u5c11\u5305\u542b 8 \u4e2a\u5b57\u7b26\uff0c\u5e76\u4e14\u5305\u542b\u81f3\u5c11\u4e00\u4e2a\u5927\u5199\u5b57\u6bcd\u3001\u4e00\u4e2a\u5c0f\u5199\u5b57\u6bcd\u3001\u4e00\u4e2a\u6570\u5b57\u548c\u4e00\u4e2a\u7279\u6b8a\u5b57\u7b26\u3002<\/p>\n<h2 id=\"2-%e5%af%86%e7%a0%81%e8%bf%87%e6%9c%9f%e7%ad%96%e7%95%a5-AenEeiChuD\">2. \u5bc6\u7801\u8fc7\u671f\u7b56\u7565<\/h2>\n<p>\u4e3a\u4e86\u786e\u4fdd\u5bc6\u7801\u7684\u5b9a\u671f\u66f4\u65b0\uff0c\u53ef\u4ee5\u914d\u7f6e\u5bc6\u7801\u8fc7\u671f\u7b56\u7565\u3002\u8fd9\u6837\u53ef\u4ee5\u9632\u6b62\u7528\u6237\u957f\u65f6\u95f4\u4f7f\u7528\u540c\u4e00\u4e2a\u5bc6\u7801\u3002<\/p>\n<p>\u6253\u5f00\u5bc6\u7801\u8fc7\u671f\u7b56\u7565\u6587\u4ef6\uff1a<\/p>\n<pre><code>sudo vi \/etc\/login.defs\n<\/code><\/pre>\n<p>\u627e\u5230\u5e76\u4fee\u6539\u4ee5\u4e0b\u53c2\u6570\uff1a<\/p>\n<pre><code>PASS_MAX_DAYS 90\nPASS_MIN_DAYS 7\nPASS_WARN_AGE 14\n<\/code><\/pre>\n<p>\u8fd9\u4e9b\u53c2\u6570\u5c06\u8bbe\u7f6e\u5bc6\u7801\u7684\u6700\u5927\u6709\u6548\u671f\u4e3a 90 \u5929\uff0c\u6700\u5c0f\u6709\u6548\u671f\u4e3a 7 \u5929\uff0c\u5bc6\u7801\u8fc7\u671f\u524d 14 \u5929\u4f1a\u53d1\u51fa\u8b66\u544a\u3002<\/p>\n<h2 id=\"3-%e7%a6%81%e7%94%a8%e7%a9%ba%e5%af%86%e7%a0%81-AenEeiChuD\">3. \u7981\u7528\u7a7a\u5bc6\u7801<\/h2>\n<p>\u7981\u7528\u7a7a\u5bc6\u7801\u662f\u786e\u4fdd\u670d\u52a1\u5668\u5b89\u5168\u7684\u91cd\u8981\u6b65\u9aa4\u3002\u7a7a\u5bc6\u7801\u610f\u5473\u7740\u7528\u6237\u53ef\u4ee5\u76f4\u63a5\u767b\u5f55\u670d\u52a1\u5668\u800c\u65e0\u9700\u63d0\u4f9b\u5bc6\u7801\u3002<\/p>\n<p>\u6253\u5f00 SSH \u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n<pre><code>sudo vi \/etc\/ssh\/sshd_config\n<\/code><\/pre>\n<p>\u627e\u5230\u5e76\u4fee\u6539\u4ee5\u4e0b\u53c2\u6570\uff1a<\/p>\n<pre><code>PermitEmptyPasswords no\n<\/code><\/pre>\n<p>\u5c06\u8be5\u53c2\u6570\u8bbe\u7f6e\u4e3a \"no\"\uff0c\u7981\u7528\u7a7a\u5bc6\u7801\u767b\u5f55\u3002<\/p>\n<h2 id=\"4-%e5%af%86%e7%a0%81%e9%94%81%e5%ae%9a%e7%ad%96%e7%95%a5-AenEeiChuD\">4. \u5bc6\u7801\u9501\u5b9a\u7b56\u7565<\/h2>\n<p>\u4e3a\u4e86\u9632\u6b62\u66b4\u529b\u7834\u89e3\u5bc6\u7801\uff0c\u53ef\u4ee5\u914d\u7f6e\u5bc6\u7801\u9501\u5b9a\u7b56\u7565\u3002\u5f53\u7528\u6237\u8fde\u7eed\u591a\u6b21\u8f93\u5165\u9519\u8bef\u5bc6\u7801\u65f6\uff0c\u8d26\u6237\u5c06\u88ab\u9501\u5b9a\u4e00\u6bb5\u65f6\u95f4\u3002<\/p>\n<p>\u6253\u5f00\u5bc6\u7801\u9501\u5b9a\u7b56\u7565\u6587\u4ef6\uff1a<\/p>\n<pre><code>sudo vi \/etc\/pam.d\/common-auth\n<\/code><\/pre>\n<p>\u5728\u6587\u4ef6\u4e2d\u627e\u5230\u5305\u542b \"auth required pam_tally2.so\" \u7684\u884c\uff0c\u5e76\u6dfb\u52a0\u4ee5\u4e0b\u53c2\u6570\uff1a<\/p>\n<pre><code>auth required pam_tally2.so deny=3 unlock_time=600 onerr=fail audit even_deny_root root_unlock_time=600\n<\/code><\/pre>\n<p>\u8fd9\u4e9b\u53c2\u6570\u5c06\u5728\u7528\u6237\u8fde\u7eed 3 \u6b21\u8f93\u5165\u9519\u8bef\u5bc6\u7801\u540e\u9501\u5b9a\u8d26\u6237 10 \u5206\u949f\u3002<\/p>\n<h2 id=\"%e6%80%bb%e7%bb%93-AenEeiChuD\">\u603b\u7ed3<\/h2>\n<p>\u901a\u8fc7\u914d\u7f6e\u5bc6\u7801\u590d\u6742\u6027\u8981\u6c42\u3001\u5bc6\u7801\u8fc7\u671f\u7b56\u7565\u3001\u7981\u7528\u7a7a\u5bc6\u7801\u548c\u5bc6\u7801\u9501\u5b9a\u7b56\u7565\uff0c\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8 Linux \u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002\u786e\u4fdd\u670d\u52a1\u5668\u5bc6\u7801\u7684\u5b89\u5168\u5bf9\u4e8e\u4fdd\u62a4\u654f\u611f\u6570\u636e\u548c\u9632\u6b62\u672a\u7ecf\u6388\u6743\u8bbf\u95ee\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5bfb\u627e\u53ef\u9760\u7684 Linux \u670d\u52a1\u5668\u63d0\u4f9b\u5546\uff0c\u540e\u6d6a\u4e91\u662f\u60a8\u7684\u9996\u9009\u3002\u6211\u4eec\u63d0\u4f9b\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u548c\u4e91\u670d\u52a1\u5668\uff0c\u4e3a\u60a8\u63d0\u4f9b\u9ad8\u6027\u80fd\u548c\u53ef\u9760\u7684\u6258\u7ba1\u89e3\u51b3\u65b9\u6848\u3002\u8bf7\u8bbf\u95ee\u6211\u4eec\u7684\u5b98\u7f51\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff1a<a href=\"https:\/\/idc.net\">https:\/\/idc.net<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux \u670d\u52a1\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u786e\u4fdd\u914d\u7f6e\u4e86\u5bc6\u7801\u521b\u5efa\u8981\u6c42 Linux \u670d\u52a1\u5668\u5b89\u5168\u7b56\u7565\u6280\u5de7\uff1a\u786e\u4fdd\u914d\u7f6e\u4e86\u5bc6\u7801\u521b\u5efa\u8981\u6c42 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-211594","post","type-post","status-publish","format-standard","hentry","category-centos"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/211594","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=211594"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/211594\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=211594"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=211594"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=211594"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}