{"id":210658,"date":"2023-12-22T07:27:18","date_gmt":"2023-12-21T23:27:18","guid":{"rendered":"https:\/\/www.idc.net\/help\/210658\/"},"modified":"2023-12-22T07:27:18","modified_gmt":"2023-12-21T23:27:18","slug":"linux-%e5%91%bd%e4%bb%a4%ef%bc%9awtmp-%e7%99%bb%e5%bd%95%e8%ae%b0%e5%bd%95%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/210658\/","title":{"rendered":"Linux \u547d\u4ee4\uff1awtmp &#8211; \u767b\u5f55\u8bb0\u5f55\u6587\u4ef6"},"content":{"rendered":"<p><title id=\"linux-%e5%91%bd%e4%bb%a4%ef%bc%9awtmp-%e7%99%bb%e5%bd%95%e8%ae%b0%e5%bd%95%e6%96%87%e4%bb%b6-WHIySQiezH\">Linux \u547d\u4ee4\uff1awtmp - \u767b\u5f55\u8bb0\u5f55\u6587\u4ef6<\/title><\/p>\n<h1 id=\"linux-%e5%91%bd%e4%bb%a4%ef%bc%9awtmp-%e7%99%bb%e5%bd%95%e8%ae%b0%e5%bd%95%e6%96%87%e4%bb%b6-WHIySQiezH\">Linux \u547d\u4ee4\uff1awtmp - \u767b\u5f55\u8bb0\u5f55\u6587\u4ef6<\/h1>\n<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0cwtmp\u662f\u4e00\u4e2a\u767b\u5f55\u8bb0\u5f55\u6587\u4ef6\uff0c\u5b83\u8bb0\u5f55\u4e86\u7cfb\u7edf\u4e2d\u6240\u6709\u7528\u6237\u7684\u767b\u5f55\u548c\u6ce8\u9500\u6d3b\u52a8\u3002\u901a\u8fc7\u67e5\u770bwtmp\u6587\u4ef6\uff0c\u7ba1\u7406\u5458\u53ef\u4ee5\u4e86\u89e3\u7cfb\u7edf\u7684\u767b\u5f55\u5386\u53f2\uff0c\u5305\u62ec\u767b\u5f55\u65f6\u95f4\u3001\u767b\u5f55\u7528\u6237\u3001\u767b\u5f55\u7ec8\u7aef\u7b49\u4fe1\u606f\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e7%9c%8bwtmp%e6%96%87%e4%bb%b6-WHIySQiezH\">\u67e5\u770bwtmp\u6587\u4ef6<\/h2>\n<p>\u8981\u67e5\u770bwtmp\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4<code>last<\/code>\u3002\u8be5\u547d\u4ee4\u4f1a\u663e\u793a\u6700\u8fd1\u7684\u767b\u5f55\u8bb0\u5f55\uff0c\u5305\u62ec\u767b\u5f55\u7528\u6237\u3001\u767b\u5f55\u65f6\u95f4\u3001\u767b\u5f55\u7ec8\u7aef\u7b49\u4fe1\u606f\u3002<\/p>\n<pre><code>$ last\n<\/code><\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c\u7c7b\u4f3c\u4e8e\uff1a<\/p>\n<pre><code>root     pts\/0        192.168.1.1    Mon Jan  1 00:00   still logged in\nuser1    pts\/1        192.168.1.2    Mon Jan  1 00:00 - 00:10  (00:10)\nuser2    pts\/2        192.168.1.3    Mon Jan  1 00:00 - 00:05  (00:05)\n<\/code><\/pre>\n<p>\u6bcf\u884c\u7684\u5b57\u6bb5\u542b\u4e49\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u767b\u5f55\u7528\u6237\uff1a\u767b\u5f55\u7cfb\u7edf\u7684\u7528\u6237\u540d\u3002<\/li>\n<li>\u767b\u5f55\u7ec8\u7aef\uff1a\u7528\u6237\u767b\u5f55\u65f6\u4f7f\u7528\u7684\u7ec8\u7aef\u8bbe\u5907\uff0c\u5982pts\/0\u8868\u793aSSH\u767b\u5f55\u3002<\/li>\n<li>\u767b\u5f55IP\uff1a\u7528\u6237\u767b\u5f55\u65f6\u7684IP\u5730\u5740\u3002<\/li>\n<li>\u767b\u5f55\u65f6\u95f4\uff1a\u7528\u6237\u767b\u5f55\u7684\u8d77\u59cb\u65f6\u95f4\u3002<\/li>\n<li>\u6ce8\u9500\u65f6\u95f4\uff1a\u7528\u6237\u6ce8\u9500\u7684\u65f6\u95f4\uff0c\u5982\u679c\u7528\u6237\u5f53\u524d\u4ecd\u7136\u767b\u5f55\uff0c\u5219\u663e\u793a\"still logged in\"\u3002<\/li>\n<li>\u767b\u5f55\u65f6\u957f\uff1a\u7528\u6237\u767b\u5f55\u7684\u65f6\u957f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b8%85%e7%a9%bawtmp%e6%96%87%e4%bb%b6-WHIySQiezH\">\u6e05\u7a7awtmp\u6587\u4ef6<\/h2>\n<p>\u5982\u679c\u9700\u8981\u6e05\u7a7awtmp\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4<code>truncate<\/code>\u6216<code>echo<\/code>\u3002<\/p>\n<p>\u4f7f\u7528<code>truncate<\/code>\u547d\u4ee4\uff1a<\/p>\n<pre><code>$ sudo truncate -s 0 \/var\/log\/wtmp\n<\/code><\/pre>\n<p>\u4f7f\u7528<code>echo<\/code>\u547d\u4ee4\uff1a<\/p>\n<pre><code>$ sudo echo \"\" &gt; \/var\/log\/wtmp\n<\/code><\/pre>\n<p>\u6e05\u7a7awtmp\u6587\u4ef6\u540e\uff0c\u7cfb\u7edf\u5c06\u4e0d\u518d\u8bb0\u5f55\u767b\u5f55\u548c\u6ce8\u9500\u6d3b\u52a8\uff0c\u4e4b\u524d\u7684\u767b\u5f55\u8bb0\u5f55\u4e5f\u5c06\u88ab\u5220\u9664\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8wtmp%e6%96%87%e4%bb%b6-WHIySQiezH\">\u4f7f\u7528wtmp\u6587\u4ef6<\/h2>\n<p>wtmp\u6587\u4ef6\u5bf9\u4e8e\u7cfb\u7edf\u7ba1\u7406\u5458\u6765\u8bf4\u662f\u975e\u5e38\u6709\u7528\u7684\uff0c\u53ef\u4ee5\u7528\u4e8e\u4ee5\u4e0b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li>\u5b89\u5168\u5ba1\u8ba1\uff1a\u901a\u8fc7\u67e5\u770bwtmp\u6587\u4ef6\uff0c\u7ba1\u7406\u5458\u53ef\u4ee5\u4e86\u89e3\u7cfb\u7edf\u7684\u767b\u5f55\u5386\u53f2\uff0c\u53ca\u65f6\u53d1\u73b0\u5f02\u5e38\u767b\u5f55\u884c\u4e3a\u3002<\/li>\n<li>\u7528\u6237\u7ba1\u7406\uff1a\u7ba1\u7406\u5458\u53ef\u4ee5\u67e5\u770b\u7528\u6237\u7684\u767b\u5f55\u8bb0\u5f55\uff0c\u4e86\u89e3\u7528\u6237\u7684\u767b\u5f55\u4e60\u60ef\u548c\u6d3b\u52a8\u60c5\u51b5\u3002<\/li>\n<li>\u7cfb\u7edf\u7ef4\u62a4\uff1a\u901a\u8fc7\u67e5\u770bwtmp\u6587\u4ef6\uff0c\u7ba1\u7406\u5458\u53ef\u4ee5\u4e86\u89e3\u7cfb\u7edf\u7684\u767b\u5f55\u8d1f\u8f7d\uff0c\u5408\u7406\u5b89\u6392\u7cfb\u7edf\u7ef4\u62a4\u65f6\u95f4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%80%bb%e7%bb%93-WHIySQiezH\">\u603b\u7ed3<\/h2>\n<p>wtmp\u6587\u4ef6\u662fLinux\u7cfb\u7edf\u4e2d\u7684\u767b\u5f55\u8bb0\u5f55\u6587\u4ef6\uff0c\u901a\u8fc7\u67e5\u770bwtmp\u6587\u4ef6\uff0c\u7ba1\u7406\u5458\u53ef\u4ee5\u4e86\u89e3\u7cfb\u7edf\u7684\u767b\u5f55\u5386\u53f2\u3002\u6e05\u7a7awtmp\u6587\u4ef6\u53ef\u4ee5\u5220\u9664\u4e4b\u524d\u7684\u767b\u5f55\u8bb0\u5f55\u3002wtmp\u6587\u4ef6\u5bf9\u4e8e\u5b89\u5168\u5ba1\u8ba1\u3001\u7528\u6237\u7ba1\u7406\u548c\u7cfb\u7edf\u7ef4\u62a4\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p>\u9999\u6e2f\u670d\u52a1\u5668\u9996\u9009\u540e\u6d6a\u4e91\uff0c\u63d0\u4f9b\u9ad8\u6027\u80fd\u3001\u7a33\u5b9a\u53ef\u9760\u7684\u670d\u52a1\u5668\u670d\u52a1\u3002\u60a8\u53ef\u4ee5\u5728<a href=\"https:\/\/idc.net\">https:\/\/idc.net<\/a>\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u548c\u4e91\u670d\u52a1\u5668\u7684\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux \u547d\u4ee4\uff1awtmp - \u767b\u5f55\u8bb0\u5f55\u6587\u4ef6 Linux \u547d\u4ee4\uff1awtmp - \u767b\u5f55\u8bb0\u5f55\u6587\u4ef6 \u5728Linux\u7cfb\u7edf\u4e2d [&hellip;]<\/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-210658","post","type-post","status-publish","format-standard","hentry","category-centos"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/210658","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=210658"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/210658\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=210658"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=210658"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=210658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}