{"id":1450,"date":"2020-12-27T13:04:22","date_gmt":"2020-12-27T05:04:22","guid":{"rendered":"http:\/\/blog.zengqq.com.cn\/?p=1450"},"modified":"2021-01-17T20:07:44","modified_gmt":"2021-01-17T12:07:44","slug":"linux%e6%9d%83%e9%99%90%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/blog.zengqq.com.cn\/?p=1450","title":{"rendered":"Linux\u6743\u9650\u8be6\u89e3"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">\u6743\u9650\u7b80\u4ecb<\/h1>\n\n\n\n<ul class=\"wp-block-list\"><li>Linux\u7cfb\u7edf\u4e0a\u5bf9\u6587\u4ef6\u7684\u6743\u9650\u6709\u7740\u4e25\u683c\u7684\u63a7\u5236\uff0c\u7528\u4e8e\u5982\u679c\u76f8\u5bf9\u67d0\u4e2a\u6587\u4ef6\u6267\u884c\u67d0\u79cd\u64cd\u4f5c\uff0c\u5fc5\u987b\u5177\u6709\u5bf9\u5e94\u7684\u6743\u9650\u65b9\u53ef\u6267\u884c\u6210\u529f\u3002<\/li><li>Linux\u4e0b\u6587\u4ef6\u7684\u6743\u9650\u7c7b\u578b\u4e00\u822c\u5305\u62ec\u8bfb\uff0c\u5199\uff0c\u6267\u884c\u3002\u5bf9\u5e94\u5b57\u6bcd\u4e3a r\u3001w\u3001x\u3002<\/li><li>Linux\u4e0b\u6743\u9650\u7684\u7c92\u5ea6\u6709&nbsp;<strong>\u62e5\u6709\u8005 \u3001\u7fa4\u7ec4 \u3001\u5176\u5b83\u7ec4&nbsp;<\/strong>\u4e09\u79cd\u3002\u6bcf\u4e2a\u6587\u4ef6\u90fd\u53ef\u4ee5\u9488\u5bf9\u4e09\u4e2a\u7c92\u5ea6\uff0c\u8bbe\u7f6e\u4e0d\u540c\u7684rwx(\u8bfb\u5199\u6267\u884c)\u6743\u9650\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e2a\u6587\u4ef6\u53ea\u80fd\u5f52\u5c5e\u4e8e\u4e00\u4e2a\u7528\u6237\u548c\u7ec4\uff0c \u5982\u679c\u5176\u5b83\u7684\u7528\u6237\u60f3\u6709\u8fd9\u4e2a\u6587\u4ef6\u7684\u6743\u9650\uff0c\u5219\u53ef\u4ee5\u5c06\u8be5\u7528\u6237\u52a0\u5165\u5177\u5907\u6743\u9650\u7684\u7fa4\u7ec4\uff0c\u4e00\u4e2a\u7528\u6237\u53ef\u4ee5\u540c\u65f6\u5f52\u5c5e\u4e8e\u591a\u4e2a\u7ec4\u3002<\/li><li>Linux\u4e0a\u901a\u5e38\u4f7f\u7528chmod\u547d\u4ee4\u5bf9\u6587\u4ef6\u7684\u6743\u9650\u8fdb\u884c\u8bbe\u7f6e\u548c\u66f4\u6539\u3002<\/li><\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e00\u3001\u5feb\u901f\u5165\u95e8<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">\u66f4\u6539\u6587\u4ef6\u6743\u9650 \uff08chmod\u547d\u4ee4\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e00\u822c\u4f7f\u7528\u683c\u5f0f<\/h3>\n\n\n\n<p>chmod [\u53ef\u9009\u9879] &lt;mode> &lt;file&#8230;><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\u53c2\u6570\u8bf4\u660e\uff1a [\u53ef\u9009\u9879]  -c, --changes          like verbose but report only when a change is made (\u82e5\u8be5\u6863\u6848\u6743\u9650\u786e\u5b9e\u5df2\u7ecf\u66f4\u6539\uff0c\u624d\u663e\u793a\u5176\u66f4\u6539\u52a8\u4f5c)  -f, --silent, --quiet  suppress most error messages  \uff08\u82e5\u8be5\u6863\u6848\u6743\u9650\u65e0\u6cd5\u88ab\u66f4\u6539\u4e5f\u4e0d\u8981\u663e\u793a\u9519\u8bef\u8baf\u606f\uff09  -v, --verbose          output a diagnostic for every file processed\uff08\u663e\u793a\u6743\u9650\u53d8\u66f4\u7684\u8be6\u7ec6\u8d44\u6599\uff09       --no-preserve-root  do not treat '\/' specially (the default)       --preserve-root    fail to operate recursively on '\/'       --reference=RFILE  use RFILE's mode instead of MODE values  -R, --recursive        change files and directories recursively \uff08\u4ee5\u9012\u5f52\u7684\u65b9\u5f0f\u5bf9\u76ee\u524d\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6863\u6848\u4e0e\u5b50\u76ee\u5f55\u8fdb\u884c\u76f8\u540c\u7684\u6743\u9650\u53d8\u66f4)       --help\t\t\u663e\u793a\u6b64\u5e2e\u52a9\u4fe1\u606f       --version\t\t\u663e\u793a\u7248\u672c\u4fe1\u606f[mode]     \u6743\u9650\u8bbe\u5b9a\u5b57\u4e32\uff0c\u8be6\u7ec6\u683c\u5f0f\u5982\u4e0b \uff1a    [ugoa...][[+-=][rwxX]...][,...]\uff0c    \u5176\u4e2d    [ugoa...]    u \u8868\u793a\u8be5\u6863\u6848\u7684\u62e5\u6709\u8005\uff0cg \u8868\u793a\u4e0e\u8be5\u6863\u6848\u7684\u62e5\u6709\u8005\u5c5e\u4e8e\u540c\u4e00\u4e2a\u7fa4\u4f53(group)\u8005\uff0co \u8868\u793a\u5176\u4ed6\u4ee5\u5916\u7684\u4eba\uff0ca \u8868\u793a\u6240\u6709\uff08\u5305\u542b\u4e0a\u9762\u4e09\u8005\uff09\u3002    [+-=]    + \u8868\u793a\u589e\u52a0\u6743\u9650\uff0c- \u8868\u793a\u53d6\u6d88\u6743\u9650\uff0c= \u8868\u793a\u552f\u4e00\u8bbe\u5b9a\u6743\u9650\u3002    [rwxX]    r \u8868\u793a\u53ef\u8bfb\u53d6\uff0cw \u8868\u793a\u53ef\u5199\u5165\uff0cx \u8868\u793a\u53ef\u6267\u884c\uff0cX \u8868\u793a\u53ea\u6709\u5f53\u8be5\u6863\u6848\u662f\u4e2a\u5b50\u76ee\u5f55\u6216\u8005\u8be5\u6863\u6848\u5df2\u7ecf\u88ab\u8bbe\u5b9a\u8fc7\u4e3a\u53ef\u6267\u884c\u3002 \t[file...]    \u6587\u4ef6\u5217\u8868\uff08\u5355\u4e2a\u6216\u8005\u591a\u4e2a\u6587\u4ef6\u3001\u6587\u4ef6\u5939\uff09<\/pre>\n\n\n\n<p>&nbsp;\u8303\u4f8b\uff1a<code><\/code><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8bbe\u7f6e\u6240\u6709\u7528\u6237\u53ef\u8bfb\u53d6\u6587\u4ef6 a.conf<\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">chmod ugo+r a.conf \u6216 chmod a+r  a.conf<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8bbe\u7f6e&nbsp;<a href=\"http:\/\/c.sh\/\">c.sh<\/a>&nbsp;\u53ea\u6709 \u62e5\u6709\u8005\u53ef\u4ee5\u8bfb\u5199\u53ca\u6267\u884c<\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">chmod u+rwx c.sh\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8bbe\u7f6e\u6587\u4ef6 a.conf \u4e0e b.xml \u6743\u9650\u4e3a\u62e5\u6709\u8005\u4e0e\u5176\u6240\u5c5e\u540c\u4e00\u4e2a\u7fa4\u7ec4 \u53ef\u8bfb\u5199\uff0c\u5176\u5b83\u7ec4\u53ef\u8bfb\u4e0d\u53ef\u5199<\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">chmod a+r,ug+w,o-w a.conf b.xml\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8bbe\u7f6e\u5f53\u524d\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6863\u6848\u4e0e\u5b50\u76ee\u5f55\u7686\u8bbe\u4e3a\u4efb\u4f55\u4eba\u53ef\u8bfb\u5199<\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">chmod -R a+rw *\n<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u6570\u5b57\u6743\u9650\u4f7f\u7528\u683c\u5f0f<\/h3>\n\n\n\n<p>\u5728\u8fd9\u79cd\u4f7f\u7528\u65b9\u5f0f\u4e2d\uff0c\u9996\u5148\u6211\u4eec\u9700\u8981\u4e86\u89e3\u6570\u5b57\u5982\u4f55\u8868\u793a\u6743\u9650\u3002 \u9996\u5148\uff0c\u6211\u4eec\u89c4\u5b9a \u6570\u5b57 4 \u30012 \u548c 1\u8868\u793a\u8bfb\u3001\u5199\u3001\u6267\u884c\u6743\u9650\uff08\u5177\u4f53\u539f\u56e0\u53ef\u89c1\u4e0b\u8282\u6743\u9650\u8be6\u89e3\u5185\u5bb9\uff09\uff0c\u5373 r=4\uff0cw=2\uff0cx=1 \u3002\u6b64\u65f6\u5176\u4ed6\u7684\u6743\u9650\u7ec4\u5408\u4e5f\u53ef\u4ee5\u7528\u5176\u4ed6\u7684\u516b\u8fdb\u5236\u6570\u5b57\u8868\u793a\u51fa\u6765\uff0c<\/p>\n\n\n\n<p>\u5982\uff1a<\/p>\n\n\n\n<p>rwx = 4 + 2 + 1 = 7<\/p>\n\n\n\n<p>rw = 4 + 2 = 6<\/p>\n\n\n\n<p>rx = 4 +1 = 5<\/p>\n\n\n\n<p>\u5373<\/p>\n\n\n\n<p>\u82e5\u8981\u540c\u65f6\u8bbe\u7f6e rwx (\u53ef\u8bfb\u5199\u8fd0\u884c\uff09 \u6743\u9650\u5219\u5c06\u8be5\u6743\u9650\u4f4d \u8bbe\u7f6e \u4e3a 4 + 2 + 1 = 7<\/p>\n\n\n\n<p>\u82e5\u8981\u540c\u65f6\u8bbe\u7f6e rw- \uff08\u53ef\u8bfb\u5199\u4e0d\u53ef\u8fd0\u884c\uff09\u6743\u9650\u5219\u5c06\u8be5\u6743\u9650\u4f4d \u8bbe\u7f6e \u4e3a 4 + 2 = 6<\/p>\n\n\n\n<p>\u82e5\u8981\u540c\u65f6\u8bbe\u7f6e r-x \uff08\u53ef\u8bfb\u53ef\u8fd0\u884c\u4e0d\u53ef\u5199\uff09\u6743\u9650\u5219\u5c06\u8be5\u6743\u9650\u4f4d \u8bbe\u7f6e \u4e3a 4 +1 = 5<\/p>\n\n\n\n<p>\u4e0a\u9762\u6211\u4eec\u63d0\u5230\uff0c\u6bcf\u4e2a\u6587\u4ef6\u90fd\u53ef\u4ee5\u9488\u5bf9\u4e09\u4e2a\u7c92\u5ea6\uff0c\u8bbe\u7f6e\u4e0d\u540c\u7684rwx(\u8bfb\u5199\u6267\u884c)\u6743\u9650\u3002\u5373\u6211\u4eec\u53ef\u4ee5\u7528\u7528\u4e09\u4e2a8\u8fdb\u5236\u6570\u5b57\u5206\u522b\u8868\u793a \u62e5\u6709\u8005 \u3001\u7fa4\u7ec4 \u3001\u5176\u5b83\u7ec4( u\u3001 g \u3001o)\u7684\u6743\u9650\u8be6\u60c5\uff0c\u5e76\u7528chmod\u76f4\u63a5\u52a0\u4e09\u4e2a8\u8fdb\u5236\u6570\u5b57\u7684\u65b9\u5f0f\u76f4\u63a5\u6539\u53d8\u6587\u4ef6\u6743\u9650\u3002\u8bed\u6cd5\u683c\u5f0f\u4e3a \uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>chmod &lt;abc&gt; file&#8230;<\/p><\/blockquote>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\u5176\u4e2da,b,c\u5404\u4e3a\u4e00\u4e2a\u6570\u5b57\uff0c\u5206\u522b\u4ee3\u8868User\u3001Group\u3001\u53caOther\u7684\u6743\u9650\u3002\u76f8\u5f53\u4e8e\u7b80\u5316\u7248\u7684chmod u=\u6743\u9650,g=\u6743\u9650,o=\u6743\u9650 file...\u800c\u6b64\u5904\u7684\u6743\u9650\u5c06\u75288\u8fdb\u5236\u7684\u6570\u5b57\u6765\u8868\u793aUser\u3001Group\u3001\u53caOther\u7684\u8bfb\u3001\u5199\u3001\u6267\u884c\u6743\u9650<\/pre>\n\n\n\n<p>\u8303\u4f8b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8bbe\u7f6e\u6240\u6709\u4eba\u53ef\u4ee5\u8bfb\u5199\u53ca\u6267\u884c<\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">chmod 777 file  (\u7b49\u4ef7\u4e8e  chmod u=rwx,g=rwx,o=rwx file \u6216  chmod a=rwx file)\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8bbe\u7f6e\u62e5\u6709\u8005\u53ef\u8bfb\u5199\uff0c\u5176\u4ed6\u4eba\u4e0d\u53ef\u8bfb\u5199\u6267\u884c<\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">chmod 600 file (\u7b49\u4ef7\u4e8e  chmod u=rw,g=---,o=--- file \u6216 chmod u=rw,go-rwx file )\n<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u66f4\u6539\u6587\u4ef6\u62e5\u6709\u8005\uff08chown\u547d\u4ee4\uff09<\/h2>\n\n\n\n<p>linux\/Unix \u662f\u591a\u4eba\u591a\u5de5\u4f5c\u4e1a\u7cfb\u7edf\uff0c\u6bcf\u4e2a\u7684\u6587\u4ef6\u90fd\u6709\u62e5\u6709\u8005\uff08\u6240\u6709\u8005\uff09\uff0c\u5982\u679c\u6211\u4eec\u60f3\u53d8\u66f4\u6587\u4ef6\u7684\u62e5\u6709\u8005\uff08\u5229\u7528 chown \u5c06\u6587\u4ef6\u62e5\u6709\u8005\u52a0\u4ee5\u6539\u53d8\uff09\uff0c\u4e00\u822c\u53ea\u6709\u7cfb\u7edf\u7ba1\u7406\u5458(root)\u62e5\u6709\u6b64\u64cd\u4f5c\u6743\u9650\uff0c\u800c\u666e\u901a\u7528\u6237\u5219\u6ca1\u6709\u6743\u9650\u5c06\u81ea\u5df1\u6216\u8005\u522b\u4eba\u7684\u6587\u4ef6\u7684\u62e5\u6709\u8005\u8bbe\u7f6e\u4e3a\u522b\u4eba\u3002<\/p>\n\n\n\n<p>\u8bed\u6cd5\u683c\u5f0f\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>chown [\u53ef\u9009\u9879] user[:group] file&#8230;<\/p><\/blockquote>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\u4f7f\u7528\u6743\u9650\uff1aroot \u8bf4\u660e\uff1a[\u53ef\u9009\u9879] : \u540c\u4e0a\u6587chmoduser : \u65b0\u7684\u6587\u4ef6\u62e5\u6709\u8005\u7684\u4f7f\u7528\u8005 group : \u65b0\u7684\u6587\u4ef6\u62e5\u6709\u8005\u7684\u4f7f\u7528\u8005\u7fa4\u4f53(group)<\/pre>\n\n\n\n<p>\u8303\u4f8b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8bbe\u7f6e\u6587\u4ef6 d.key\u3001e.scrt\u7684\u62e5\u6709\u8005\u8bbe\u4e3a users \u7fa4\u4f53\u7684 tom<\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">chown tom:users file d.key e.scrt\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8bbe\u7f6e\u5f53\u524d\u76ee\u5f55\u4e0b\u4e0e\u5b50\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6\u7684\u62e5\u6709\u8005\u4e3a users \u7fa4\u4f53\u7684 James<\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">chown -R James:users  *\n<\/pre>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e8c\u3001Linux\u6743\u9650\u8be6\u89e3<\/h1>\n\n\n\n<p>Linux\u7cfb\u7edf\u4e0a\u5bf9\u6587\u4ef6\u7684\u6743\u9650\u6709\u7740\u4e25\u683c\u7684\u63a7\u5236\uff0c\u7528\u4e8e\u5982\u679c\u76f8\u5bf9\u67d0\u4e2a\u6587\u4ef6\u6267\u884c\u67d0\u79cd\u64cd\u4f5c\uff0c\u5fc5\u987b\u5177\u6709\u5bf9\u5e94\u7684\u6743\u9650\u65b9\u53ef\u6267\u884c\u6210\u529f\u3002\u8fd9\u4e5f\u662fLinux\u6709\u522b\u4e8eWindows\u7684\u673a\u5236\uff0c\u4e5f\u662f\u57fa\u4e8e\u8fd9\u4e2a\u6743\u9650\u673a\u5236\uff0cLinux\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u75c5\u6bd2\u81ea\u6211\u8fd0\u884c\uff0c\u56e0\u4e3a\u8fd0\u884c\u7684\u6761\u4ef6\u662f\u5fc5\u987b\u8981\u6709\u8fd0\u884c\u7684\u6743\u9650\uff0c\u800c\u8fd9\u4e2a\u6743\u9650\u5728Linux\u662f\u7528\u6237\u6240\u8d4b\u4e88\u7684\u3002<\/p>\n\n\n\n<p>Linux\u7684\u6587\u4ef6\u6743\u9650\u6709\u4ee5\u4e0b\u8bbe\u5b9a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Linux\u4e0b\u6587\u4ef6\u7684\u6743\u9650\u7c7b\u578b\u4e00\u822c\u5305\u62ec\u8bfb\uff0c\u5199\uff0c\u6267\u884c\u3002\u5bf9\u5e94\u5b57\u6bcd\u4e3a r\u3001w\u3001x\u3002<\/li><li>Linux\u4e0b\u6743\u9650\u7684\u5c5e\u7ec4\u6709&nbsp;<strong>\u62e5\u6709\u8005 \u3001\u7fa4\u7ec4 \u3001\u5176\u5b83\u7ec4<\/strong>&nbsp;\u4e09\u79cd\u3002\u6bcf\u4e2a\u6587\u4ef6\u90fd\u53ef\u4ee5\u9488\u5bf9\u8fd9\u4e09\u4e2a\u5c5e\u7ec4\uff08\u7c92\u5ea6\uff09\uff0c\u8bbe\u7f6e\u4e0d\u540c\u7684rwx(\u8bfb\u5199\u6267\u884c)\u6743\u9650\u3002<\/li><li>\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e2a\u6587\u4ef6\u53ea\u80fd\u5f52\u5c5e\u4e8e\u4e00\u4e2a\u7528\u6237\u548c\u7ec4\uff0c \u5982\u679c\u5176\u5b83\u7684\u7528\u6237\u60f3\u6709\u8fd9\u4e2a\u6587\u4ef6\u7684\u6743\u9650\uff0c\u5219\u53ef\u4ee5\u5c06\u8be5\u7528\u6237\u52a0\u5165\u5177\u5907\u6743\u9650\u7684\u7fa4\u7ec4\uff0c\u4e00\u4e2a\u7528\u6237\u53ef\u4ee5\u540c\u65f6\u5f52\u5c5e\u4e8e\u591a\u4e2a\u7ec4\u3002<\/li><\/ul>\n\n\n\n<p>\u5982\u679c\u6211\u4eec\u8981\u8868\u793a\u4e00\u4e2a\u6587\u4ef6\u7684\u6240\u6709\u6743\u9650\u8be6\u60c5\uff0c\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u7b2c\u4e00\u79cd\u662f\u5341\u4f4d\u4e8c\u8fdb\u5236\u8868\u793a\u6cd5 \uff0c(\u4e09\u4e2a\u5c5e\u7ec4\u7684\u6bcf\u4e2a\u6743\u9650\u4f7f\u7528\u4e00\u4e2a\u4e8c\u8fdb\u5236\u4f4d\uff0c\u518d\u52a0\u4e00\u4e2a\u6700\u9ad8\u4f4d\u5171\u5341\u4f4d)\uff0c\u53ef\u7b80\u5316\u4e3a\u4e09\u4e2a\u516b\u8fdb\u5236\u6570\u5b57\u5f62\u5f0f\uff08\u5982 755\uff09<\/li><li>\u53e6\u5916\u4e00\u79cd\u5341\u4e8c\u4f4d\u4e8c\u8fdb\u5236\u8868\u793a\u6cd5(\u5341\u4e8c\u4e2a\u4e8c\u8fdb\u5236\u4f4d)\uff0c\u53ef\u7b80\u5316\u4e3a\u56db\u4e2a\u516b\u8fdb\u5236\u6570\u5b57\u5f62\u5f0f\uff08\u59824755\uff09<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5341\u4f4d\u6743\u9650\u8868\u793a<\/h2>\n\n\n\n<p>\u5e38\u89c1\u7684\u6743\u9650\u8868\u793a\u5f62\u5f0f\u6709\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">-rw------- (600)    \u53ea\u6709\u62e5\u6709\u8005\u6709\u8bfb\u5199\u6743\u9650\u3002-rw-r--r-- (644)    \u53ea\u6709\u62e5\u6709\u8005\u6709\u8bfb\u5199\u6743\u9650\uff1b\u800c\u5c5e\u7ec4\u7528\u6237\u548c\u5176\u4ed6\u7528\u6237\u53ea\u6709\u8bfb\u6743\u9650\u3002-rwx------ (700)    \u53ea\u6709\u62e5\u6709\u8005\u6709\u8bfb\u3001\u5199\u3001\u6267\u884c\u6743\u9650\u3002-rwxr-xr-x (755)    \u62e5\u6709\u8005\u6709\u8bfb\u3001\u5199\u3001\u6267\u884c\u6743\u9650\uff1b\u800c\u5c5e\u7ec4\u7528\u6237\u548c\u5176\u4ed6\u7528\u6237\u53ea\u6709\u8bfb\u3001\u6267\u884c\u6743\u9650\u3002-rwx--x--x (711)    \u62e5\u6709\u8005\u6709\u8bfb\u3001\u5199\u3001\u6267\u884c\u6743\u9650\uff1b\u800c\u5c5e\u7ec4\u7528\u6237\u548c\u5176\u4ed6\u7528\u6237\u53ea\u6709\u6267\u884c\u6743\u9650\u3002-rw-rw-rw- (666)    \u6240\u6709\u7528\u6237\u90fd\u6709\u6587\u4ef6\u8bfb\u3001\u5199\u6743\u9650\u3002-rwxrwxrwx (777)    \u6240\u6709\u7528\u6237\u90fd\u6709\u8bfb\u3001\u5199\u3001\u6267\u884c\u6743\u9650\u3002<\/pre>\n\n\n\n<p>\u540e\u4e5d\u4f4d\u89e3\u6790\uff1a&nbsp;\u6211\u4eec\u77e5\u9053Linux\u6743\u9650\u603b\u5171\u6709\u4e09\u4e2a\u5c5e\u7ec4\uff0c\u8fd9\u91cc\u6211\u4eec\u7ed9\u6bcf\u4e2a\u5c5e\u7ec4\u4f7f\u7528\u4e09\u4e2a\u4f4d\u7f6e\u6765\u5b9a\u4e49\u4e09\u79cd\u64cd\u4f5c\uff08\u8bfb\u3001\u5199\u3001\u6267\u884c\uff09\u6743\u9650\uff0c\u5408\u8d77\u6765\u5219\u662f\u6743\u9650\u7684\u540e\u4e5d\u4f4d\u3002 \u4e0a\u9762\u6211\u4eec\u7528\u5b57\u7b26\u8868\u793a\u6743\u9650\uff0c\u5176\u4e2d -\u4ee3\u8868\u65e0\u6743\u9650\uff0cr\u4ee3\u8868\u8bfb\u6743\u9650\uff0cw\u4ee3\u8868\u5199\u6743\u9650\uff0cx\u4ee3\u8868\u6267\u884c\u6743\u9650\u3002\uff08\u540e\u4e5d\u4f4d\u7684\u524d3\u4f4d\u5bf9\u5e94\u62e5\u6709\u8005\u6743\u9650\u30014-6\u4f4d\u5bf9\u5e94\u7fa4\u7ec4\u6743\u9650\u30017-9\u5bf9\u5e94\u5176\u4ed6\u7ec4\u6743\u9650\uff09<\/p>\n\n\n\n<p>\u5b9e\u9645\u4e0a\uff0c\u540e\u4e5d\u4f4d\u6bcf\u4e2a\u4f4d\u7f6e\u7684\u610f\u4e49\uff08\u4ee3\u8868\u67d0\u4e2a\u5c5e\u7ec4\u7684\u67d0\u4e2a\u6743\u9650\uff09\u90fd\u662f\u56fa\u5b9a\u7684\uff0c\u5982\u679c\u6211\u4eec\u5c06\u5404\u4e2a\u4f4d\u7f6e\u6743\u9650\u7684\u6709\u65e0\u7528\u4e8c\u8fdb\u5236\u6570 1\u548c 0\u6765\u4ee3\u66ff\uff0c\u5219\u53ea\u8bfb\u3001\u53ea\u5199\u3001\u53ea\u6267\u884c\u6743\u9650\uff0c\u53ef\u4ee5\u7528\u4e09\u4f4d\u4e8c\u8fdb\u5236\u6570\u8868\u793a\u4e3a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">r-- = 100-w- = 010--x = 001--- = 000<\/pre>\n\n\n\n<p>\u8f6c\u6362\u6210\u516b\u8fdb\u5236\u6570\uff0c\u5219\u4e3a r=4, w=2, x=1, -=0\uff08\u8fd9\u4e5f\u5c31\u662f\u7528\u6570\u5b57\u8bbe\u7f6e\u6743\u9650\u65f6\u4e3a\u4f55\u662f4\u4ee3\u8868\u8bfb\uff0c2\u4ee3\u8868\u5199\uff0c1\u4ee3\u8868\u6267\u884c\uff09<\/p>\n\n\n\n<p>\u5b9e\u9645\u4e0a\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u6240\u6709\u7684\u6743\u9650\u7528\u4e8c\u8fdb\u5236\u5f62\u5f0f\u8868\u73b0\u51fa\u6765\uff0c\u5e76\u8fdb\u4e00\u6b65\u8f6c\u53d8\u6210\u516b\u8fdb\u5236\u6570\u5b57\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">rwx = 111 = 7rw- = 110 = 6r-x = 101 = 5r-- = 100 = 4-wx = 011 = 3-w- = 010 = 2--x = 001 = 1--- = 000 = 0<\/pre>\n\n\n\n<p>\u7531\u4e0a\u53ef\u4ee5\u5f97\u51fa\uff0c\u6bcf\u4e2a\u5c5e\u7ec4\u7684\u6240\u6709\u7684\u6743\u9650\u90fd\u53ef\u4ee5\u7528\u4e00\u4f4d\u516b\u8fdb\u5236\u6570\u8868\u793a\uff0c\u6bcf\u4e2a\u6570\u5b57\u90fd\u4ee3\u8868\u4e86\u4e0d\u540c\u7684\u6743\u9650\uff08\u6743\u503c\uff09\u3002\u5982 \u6700\u9ad8\u7684\u6743\u9650\u4e3a\u662f7\uff0c\u4ee3\u8868\u53ef\u8bfb\uff0c\u53ef\u5199\uff0c\u53ef\u6267\u884c\u3002<\/p>\n\n\n\n<p>\u6545 \u5982\u679c\u6211\u4eec\u5c06\u6bcf\u4e2a\u5c5e\u7ec4\u7684\u6743\u9650\u90fd\u7528\u516b\u8fdb\u5236\u6570\u8868\u793a\uff0c\u5219\u6587\u4ef6\u7684\u6743\u9650\u53ef\u4ee5\u8868\u793a\u4e3a\u4e09\u4f4d\u516b\u8fdb\u5236\u6570<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">-rw------- =  600-rw-rw-rw- =  666-rwxrwxrwx =  777<\/pre>\n\n\n\n<p>\u5173\u4e8e\u7b2c\u4e00\u4f4d\u6700\u9ad8\u4f4d\u7684\u89e3\u91ca\uff1a&nbsp;\u4e0a\u9762\u6211\u4eec\u8bf4\u5230\u4e86\u6743\u9650\u8868\u793a\u4e2d\u540e\u4e5d\u4f4d\u7684\u542b\u4e49\uff0c\u5269\u4e0b\u7684\u7b2c\u4e00\u4f4d\u4ee3\u8868\u7684\u662f\u6587\u4ef6\u7684\u7c7b\u578b\uff0c\u7c7b\u578b\u53ef\u4ee5\u662f\u4e0b\u9762\u51e0\u4e2a\u4e2d\u7684\u4e00\u4e2a\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">d\u4ee3\u8868\u7684\u662f\u76ee\u5f55(directroy)-\u4ee3\u8868\u7684\u662f\u6587\u4ef6(regular file)s\u4ee3\u8868\u7684\u662f\u5957\u5b57\u6587\u4ef6(socket)p\u4ee3\u8868\u7684\u7ba1\u9053\u6587\u4ef6(pipe)\u6216\u547d\u540d\u7ba1\u9053\u6587\u4ef6(named pipe)l\u4ee3\u8868\u7684\u662f\u7b26\u53f7\u94fe\u63a5\u6587\u4ef6(symbolic link)b\u4ee3\u8868\u7684\u662f\u8be5\u6587\u4ef6\u662f\u9762\u5411\u5757\u7684\u8bbe\u5907\u6587\u4ef6(block-oriented device file)c\u4ee3\u8868\u7684\u662f\u8be5\u6587\u4ef6\u662f\u9762\u5411\u5b57\u7b26\u7684\u8bbe\u5907\u6587\u4ef6(charcter-oriented device file)<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u5341\u4e8c\u4f4d\u6743\u9650\uff08Linux\u9644\u52a0\u6743\u9650\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u9644\u52a0\u6743\u9650\u76f8\u5173\u6982\u5ff5<\/h3>\n\n\n\n<p>linux\u9664\u4e86\u8bbe\u7f6e\u6b63\u5e38\u7684\u8bfb\u5199\u64cd\u4f5c\u6743\u9650\u5916\uff0c\u8fd8\u6709\u5173\u4e8e\u4e00\u7c7b\u8bbe\u7f6e\u4e5f\u662f\u6d89\u53ca\u5230\u6743\u9650\uff0c\u53eb\u505aLinxu\u9644\u52a0\u6743\u9650\u3002\u5305\u62ec SET\u4f4d\u6743\u9650\uff08suid\uff0csgid\uff09\u548c\u7c98\u6ede\u4f4d\u6743\u9650\uff08sticky\uff09\u3002<\/p>\n\n\n\n<p>SET\u4f4d\u6743\u9650\uff1a<\/p>\n\n\n\n<p>suid\/sgid\u662f\u4e3a\u4e86\u4f7f\u201c\u6ca1\u6709\u53d6\u5f97\u7279\u6743\u7528\u6237\u8981\u5b8c\u6210\u4e00\u9879\u5fc5\u987b\u8981\u6709\u7279\u6743\u624d\u53ef\u4ee5\u6267\u884c\u7684\u4efb\u52a1\u201d\u800c\u4ea7\u751f\u7684\u3002 \u4e00\u822c\u7528\u4e8e\u7ed9\u53ef\u6267\u884c\u7684\u7a0b\u5e8f\u6216\u811a\u672c\u6587\u4ef6\u8fdb\u884c\u8bbe\u7f6e\uff0c\u5176\u4e2dSUID\u8868\u793a\u5bf9\u5c5e\u4e3b\u7528\u6237\u589e\u52a0SET\u4f4d\u6743\u9650\uff0cSGID\u8868\u793a\u5bf9\u5c5e\u7ec4\u5185\u7528\u6237\u589e\u52a0SET\u4f4d\u6743\u9650\u3002\u6267\u884c\u6587\u4ef6\u88ab\u8bbe\u7f6e\u4e86SUID\u3001SGID\u6743\u9650\u540e\uff0c\u4efb\u4f55\u7528\u6237\u6267\u884c\u8be5\u6587\u4ef6\u65f6\uff0c\u5c06\u83b7\u5f97\u8be5\u6587\u4ef6\u5c5e\u4e3b\u3001\u5c5e\u7ec4\u8d26\u53f7\u5bf9\u5e94\u7684\u8eab\u4efd\u3002\u5728\u8bb8\u591a\u73af\u5883\u4e2d\uff0csuid \u548c sgid \u5f88\u7ba1\u7528\uff0c\u4f46\u662f\u4e0d\u6070\u5f53\u5730\u4f7f\u7528\u8fd9\u4e9b\u4f4d\u53ef\u80fd\u4f7f\u7cfb\u7edf\u7684\u5b89\u5168\u906d\u5230\u7834\u574f\u3002\u6240\u4ee5\u5e94\u8be5\u5c3d\u91cf\u907f\u514d\u4f7f\u7528SET\u4f4d\u6743\u9650\u7a0b\u5e8f\u3002\uff08passwd \u547d\u4ee4\u662f\u4e3a\u6570\u4e0d\u591a\u7684\u5fc5\u987b\u4f7f\u7528\u201csuid\u201d\u7684\u547d\u4ee4\u4e4b\u4e00\uff09\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>suid(set User ID,set UID)\u7684\u610f\u601d\u662f\u8fdb\u7a0b\u6267\u884c\u4e00\u4e2a\u6587\u4ef6\u65f6\u901a\u5e38\u4fdd\u6301\u8fdb\u7a0b\u62e5\u6709\u8005\u7684UID\u3002\u7136\u800c\uff0c\u5982\u679c\u8bbe\u7f6e\u4e86\u53ef\u6267\u884c\u6587\u4ef6\u7684suid\u4f4d\uff0c\u8fdb\u7a0b\u5c31\u83b7\u5f97\u4e86\u8be5\u6587\u4ef6\u62e5\u6709\u8005\u7684UID\u3002<\/li><li>sgid(set Group ID,set GID)\u610f\u601d\u4e5f\u662f\u4e00\u6837\uff0c\u53ea\u662f\u628a\u4e0a\u9762\u7684\u8fdb\u7a0b\u62e5\u6709\u8005\u6539\u6210\u8fdb\u7a0b\u7ec4\u5c31\u597d\u4e86\u3002<\/li><\/ul>\n\n\n\n<p>SET\u4f4d\u6743\u9650\u8868\u793a\u5f62\u5f0f\uff0810\u4f4d\u6743\u9650\uff09\uff1a<\/p>\n\n\n\n<p>\u5982\u679c\u4e00\u4e2a\u6587\u4ef6\u88ab\u8bbe\u7f6e\u4e86suid\u6216sgid\u4f4d\uff0c\u4f1a\u5206\u522b\u8868\u73b0\u5728\u6240\u6709\u8005\u6216\u540c\u7ec4\u7528\u6237\u7684\u6743\u9650\u7684\u53ef\u6267\u884c\u4f4d\u4e0a\uff1b\u5982\u679c\u6587\u4ef6\u8bbe\u7f6e\u4e86suid\u8fd8\u8bbe\u7f6e\u4e86x\uff08\u6267\u884c\uff09\u4f4d\uff0c\u5219\u76f8\u5e94\u7684\u6267\u884c\u4f4d\u8868\u793a\u4e3as(\u5c0f\u5199)\u3002\u4f46\u662f\uff0c\u5982\u679c\u6ca1\u6709\u8bbe\u7f6ex\u4f4d\uff0c\u5b83\u5c06\u8868\u793a\u4e3aS(\u5927\u5199)\u3002\u5982\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">1\u3001-rwsr-xr-x \u8868\u793a\u8bbe\u7f6e\u4e86suid\uff0c\u4e14\u62e5\u6709\u8005\u6709\u53ef\u6267\u884c\u6743\u96502\u3001-rwSr--r-- \u8868\u793asuid\u88ab\u8bbe\u7f6e\uff0c\u4f46\u62e5\u6709\u8005\u6ca1\u6709\u53ef\u6267\u884c\u6743\u96503\u3001-rwxr-sr-x \u8868\u793asgid\u88ab\u8bbe\u7f6e\uff0c\u4e14\u7fa4\u7ec4\u7528\u6237\u6709\u53ef\u6267\u884c\u6743\u96504\u3001-rw-r-Sr-- \u8868\u793asgid\u88ab\u8bbe\u7f6e\uff0c\u4f46\u7fa4\u7ec4\u7528\u6237\u6ca1\u6709\u53ef\u6267\u884c\u6743\u9650<\/pre>\n\n\n\n<p>\u8bbe\u7f6e\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<p>SET\u4f4d\u6743\u9650\u53ef\u4ee5\u901a\u8fc7chmod\u547d\u4ee4\u8bbe\u7f6e\uff0c\u7ed9\u6587\u4ef6\u52a0suid\u548csgid\u7684\u547d\u4ee4\u5982\u4e0b(\u7c7b\u4f3c\u4e8e\u4e0a\u9762chmod\u8d4b\u4e88\u4e00\u822c\u6743\u9650\u7684\u547d\u4ee4)\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">chmod u+s filename \t\u8bbe\u7f6esuid\u4f4dchmod u-s filename \t\u53bb\u6389suid\u8bbe\u7f6echmod g+s filename \t\u8bbe\u7f6esgid\u4f4dchmod g-s filename \t\u53bb\u6389sgid\u8bbe\u7f6e<\/pre>\n\n\n\n<p>\u7c98\u6ede\u4f4d\u6743\u9650\uff1a<\/p>\n\n\n\n<p>\u7c98\u6ede\u4f4d\u6743\u9650\u5373sticky\u3002\u4e00\u822c\u7528\u4e8e\u4e3a\u76ee\u5f55\u8bbe\u7f6e\u7279\u6b8a\u7684\u9644\u52a0\u6743\u9650\uff0c\u5f53\u76ee\u5f55\u88ab\u8bbe\u7f6e\u4e86\u7c98\u6ede\u4f4d\u6743\u9650\u540e\uff0c\u5373\u4fbf\u7528\u6237\u5bf9\u8be5\u76ee\u5f55\u6709\u5199\u7684\u6743\u9650\uff0c\u4e5f\u4e0d\u80fd\u5220\u9664\u8be5\u76ee\u5f55\u4e2d\u5176\u4ed6\u7528\u6237\u7684\u6587\u4ef6\u6570\u636e\u3002\u8bbe\u7f6e\u4e86\u7c98\u6ede\u4f4d\u6743\u9650\u7684\u76ee\u5f55\uff0c\u662f\u7528ls\u67e5\u770b\u5176\u5c5e\u6027\u65f6\uff0c\u5176\u4ed6\u7528\u6237\u6743\u9650\u5904\u7684x\u5c06\u53d8\u4e3at\u3002 \u4f7f\u7528chmod\u547d\u4ee4\u8bbe\u7f6e\u76ee\u5f55\u6743\u9650\u65f6\uff0c+t\u3001-t\u6743\u9650\u6a21\u5f0f\u53ef\u5206\u522b\u7528\u4e8e\u6dfb\u52a0\u3001\u79fb\u9664\u7c98\u6ede\u4f4d\u6743\u9650\u3002<\/p>\n\n\n\n<p>\u7c98\u6ede\u4f4d\u6743\u9650\u8868\u793a\u5f62\u5f0f\uff0810\u4f4d\u6743\u9650\uff09\uff1a<\/p>\n\n\n\n<p>\u4e00\u4e2a\u6587\u4ef6\u6216\u76ee\u5f55\u88ab\u8bbe\u7f6e\u4e86\u7c98\u6ede\u4f4d\u6743\u9650\uff0c\u4f1a\u8868\u73b0\u5728\u5176\u4ed6\u7ec4\u7528\u6237\u7684\u6743\u9650\u7684\u53ef\u6267\u884c\u4f4d\u4e0a\u3002\u5982\u679c\u6587\u4ef6\u8bbe\u7f6e\u4e86sticky\u8fd8\u8bbe\u7f6e\u4e86x\uff08\u6267\u884c\uff09\u4f4d\uff0c\u5176\u4ed6\u7ec4\u7528\u6237\u7684\u6743\u9650\u7684\u53ef\u6267\u884c\u4f4d\u4e3at(\u5c0f\u5199)\u3002\u4f46\u662f\uff0c\u5982\u679c\u6ca1\u6709\u8bbe\u7f6ex\u4f4d\uff0c\u5b83\u5c06\u8868\u793a\u4e3aT(\u5927\u5199)\u3002\u5982\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">1\u3001-rwsr-xr-t \u8868\u793a\u8bbe\u7f6e\u4e86\u7c98\u6ede\u4f4d\u4e14\u5176\u4ed6\u7528\u6237\u7ec4\u6709\u53ef\u6267\u884c\u6743\u96502\u3001-rwSr--r-T \u8868\u793a\u8bbe\u7f6e\u4e86\u7c98\u6ede\u4f4d\u4f46\u5176\u4ed6\u7528\u6237\u7ec4\u6ca1\u6709\u53ef\u6267\u884c\u6743\u9650<\/pre>\n\n\n\n<p>\u8bbe\u7f6e\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<p>sticky\u6743\u9650\u540c\u6837\u53ef\u4ee5\u901a\u8fc7chmod\u547d\u4ee4\u8bbe\u7f6e\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>chmod +t &lt;\u6587\u4ef6\u5217\u8868..&gt;<\/p><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u5341\u4e8c\u4f4d\u7684\u6743\u9650\u8868\u793a\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u9644\u52a0\u6743\u9650\u9664\u4e86\u7528\u5341\u4f4d\u6743\u9650\u5f62\u5f0f\u8868\u793a\u5916\uff0c\u8fd8\u53ef\u4ee5\u7528\u7528\u5341\u4e8c\u4f4d\u5b57\u7b26\u8868\u793a\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">11 10 9 8 7 6 5 4 3 2 1 0S  G  T r w x r w x r w x<\/pre>\n\n\n\n<p>SGT\u5206\u522b\u8868\u793aSUID\u6743\u9650\u3001SGID\u6743\u9650\u3001\u548c \u7c98\u6ede\u4f4d\u6743\u9650\uff0c\u8fd9\u5341\u4e8c\u4f4d\u5206\u522b\u5bf9\u5e94\u5173\u7cfb\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p>\u7b2c11\u4f4d\u4e3aSUID\u4f4d\uff0c\u7b2c10\u4f4d\u4e3aSGID\u4f4d\uff0c\u7b2c9\u4f4d\u4e3asticky\u4f4d\uff0c\u7b2c8-0\u4f4d\u5bf9\u5e94\u4e8e\u4e0a\u9762\u7684\u4e09\u7ec4rwx\u4f4d\uff08\u540e\u4e5d\u4f4d\uff09\u3002<\/p>\n\n\n\n<p>\u5728\u8fd9\u5341\u4e8c\u4f4d\u7684\u6bcf\u4e00\u4f4d\u4e0a\u90fd\u7f6e\u503c\u3002\u5982\u679c\u6709\u76f8\u5e94\u7684\u6743\u9650\u5219\u4e3a1\uff0c \u6ca1\u6709\u6b64\u6743\u9650\u5219\u4e3a0\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">-rw-r-sr-- \u7684\u503c\u4e3a\uff1a 0 1 0  1 1 0  1 0 0  1 0 0-rwsr-xr-x \u7684\u503c\u4e3a\uff1a 1 0 0  1 1 1  1 0 1  1 0 1-rwsr-sr-x \u7684\u503c\u4e3a\uff1a 1 1 0  1 1 1  1 0 1  1 0 1 -rwsr-sr-t \u7684\u503c\u4e3a\uff1a 1 1 1  1 1 1  1 0 1  1 0 1<\/pre>\n\n\n\n<p>\u5982\u679c\u5c06\u5219\u524d\u4e09\u4f4dSGT\u4e5f\u8f6c\u6362\u6210\u4e00\u4e2a\u4e8c\u8fdb\u5236\u6570\uff0c\u5219<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>suid \u7684\u516b\u8fdb\u5236\u6570\u5b57\u662f4<\/li><li>sgid \u7684\u4ee3\u8868\u6570\u5b57\u662f 2<\/li><li>sticky \u4f4d\u4ee3\u8868\u6570\u5b57\u662f1<\/li><\/ul>\n\n\n\n<p>\u8fd9\u6837\u6211\u4eec\u5c31\u53ef\u4ee5\u5c06\u5341\u4e8c\u4f4d\u6743\u9650\u4e09\u4f4d\u4e09\u4f4d\u7684\u8f6c\u5316\u4e3a4\u4e2a\u516b\u8fdb\u5236\u6570\u3002\u5176\u4e2d<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u6700\u9ad8\u7684\u4e00\u4f4d\u516b\u8fdb\u5236\u6570\u5c31\u662fsuid\uff0csgdi\uff0csticky\u7684\u6743\u503c\u3002<\/li><li>\u7b2c\u4e8c\u4f4d\u4e3a \u62e5\u6709\u8005\u7684\u6743\u503c<\/li><li>\u7b2c\u4e09\u4f4d\u4e3a \u6240\u5c5e\u7ec4\u7684\u6743\u503c<\/li><li>\u6700\u540e\u4e00\u4f4d\u4e3a \u5176\u4ed6\u7ec4\u7684\u6743\u503c<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u9644\u52a0\u6743\u9650\u7684\u516b\u8fdb\u5236\u5f62\u5f0f<\/h3>\n\n\n\n<p>\u901a\u8fc7\u4e0a\u9762\uff0c\u6211\u4eec\u77e5\u9053\uff0c\u6b63\u5e38\u6743\u9650\u548c\u9644\u52a0\u6743\u9650\u53ef\u4ee5\u75284\u4f4d\u516b\u8fdb\u5236\u6570\u8868\u793a\u3002\u7c7b\u4f3c\u4e8e\u6b63\u5e38\u6743\u9650\u7684\u6570\u5b57\u6743\u9650\u8d4b\u503c\u6a21\u5f0f\uff08\u4f7f\u7528\u4e09\u4f4d\u516b\u8fdb\u5236\u6570\u5b57\u8d4b\u503c\uff09<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>chmod &lt;abc&gt; file&#8230;<\/p><\/blockquote>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u8fdb\u4e00\u6b65\u4f7f\u75284\u4f4d\u516b\u8fdb\u5236\u6570\u5b57\u540c\u65f6\u8d4b\u503c\u6b63\u5e38\u6743\u9650\u548c\u9644\u52a0\u6743\u9650\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>chmod &lt;sabc&gt; file&#8230;<\/p><\/blockquote>\n\n\n\n<p>\u5176\u4e2ds\u662f\u8868\u793a\u9644\u52a0\u6743\u9650\u7684\u628a\u516b\u8fdb\u5236\u6570\u5b57\uff0cabc\u4e0e\u4e4b\u524d\u4e00\u81f4\uff0c\u5206\u522b\u662f\u5bf9\u5e94User\u3001Group\u3001\u53caOther\uff08\u62e5\u6709\u8005\u3001\u7fa4\u7ec4\u3001\u5176\u4ed6\u7ec4\uff09\u7684\u6743\u9650\u3002\u56e0\u4e3aSUID\u5bf9\u5e94\u516b\u8fdb\u5236\u6570\u5b57\u662f4\uff0cSGID\u5bf9\u4e8e\u516b\u8fdb\u5236\u6570\u5b57\u662f2\uff0c\u5219\u201c4755\u201d\u8868\u793a\u8bbe\u7f6eSUID\u6743\u9650\uff0c\u201c6755\u201d\u8868\u793a\u540c\u65f6\u8bbe\u7f6eSUID\u3001SGID\u6743\u9650\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u8fdb\u4e00\u6b65\u5c06\u4e0a\u5c0f\u8282\u7684\u4f8b\u5b50\u4e2d\u7684\u4e8c\u8fdb\u5236\u6570\u8f6c\u53d8\u4e3a\u516b\u8fdb\u5236\u8868\u793a\u5f62\u5f0f\uff0c\u5219<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">-rw-r-sr-- = 0 1 0 1 1 0 1 0 0 1 0 0 = 2644 -rwsr-xr-x = 1 0 0 1 1 1 1 0 1 1 0 1 = 4755-rwsr-sr-x = 1 1 0 1 1 1 1 0 1 1 0 1 = 6755-rwsr-sr-t = 1 1 1 1 1 1 1 0 1 1 0 1 = 7755<\/pre>\n\n\n\n<p>\u5bf9\u6bd4\u8303\u4f8b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8bbe\u7f6e netlogin \u7684\u6743\u9650\u4e3a\u62e5\u6709\u8005\u53ef\u8bfb\u5199\u6267\u884c\uff0c\u7fa4\u7ec4\u548c\u5176\u4ed6\u6743\u9650\u4e3a\u53ef\u8bfb\u53ef\u6267\u884c<\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">chmod 755 netlogin <\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8bbe\u7f6e netlogin \u7684\u6743\u9650\u4e3a\u62e5\u6709\u8005\u53ef\u8bfb\u5199\u6267\u884c\uff0c\u7fa4\u7ec4\u548c\u5176\u4ed6\u6743\u9650\u4e3a\u53ef\u8bfb\u53ef\u6267\u884c\uff0c\u5e76\u4e14\u8bbe\u7f6esuid<\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">chmod 4755 netlogin<\/pre>\n\n\n\n<p>chmod 4755\u4e0echmod 755\u5bf9\u6bd4\u591a\u4e86\u9644\u52a0\u6743\u9650\u503c4\uff0c\u8fd9\u4e2a4\u8868\u793a\u5176\u4ed6\u7528\u6237\u6267\u884c\u6587\u4ef6\u65f6\uff0c\u5177\u6709\u4e0e\u6240\u6709\u8005\u540c\u6837\u7684\u6743\u9650\uff08\u8bbe\u7f6e\u4e86SUID\uff09\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\u4e3a\u4ec0\u4e48\u8981\u8bbe\u7f6e4755 \u800c\u4e0d\u662f 755\uff1f&nbsp;<br>\u5047\u8bbenetlogin\u662froot\u7528\u6237\u521b\u5efa\u7684\u4e00\u4e2a\u4e0a\u7f51\u8ba4\u8bc1\u7a0b\u5e8f\uff0c\u5982\u679c\u5176\u4ed6\u7528\u6237\u8981\u4e0a\u7f51\u4e5f\u8981\u7528\u5230\u8fd9\u4e2a\u7a0b\u5e8f\uff0c\u90a3\u5c31\u9700\u8981root\u7528\u6237\u8fd0\u884cchmod 755 netlogin\u547d\u4ee4\u4f7f\u5176\u4ed6\u7528\u6237\u4e5f\u80fd\u8fd0\u884cnetlogin\u3002\u4f46\u5047\u5982netlogin\u6267\u884c\u65f6\u9700\u8981\u8bbf\u95ee\u4e00\u4e9b\u53ea\u6709root\u7528\u6237\u624d\u6709\u6743\u8bbf\u95ee\u7684\u6587\u4ef6\uff0c\u90a3\u4e48\u5176\u4ed6\u7528\u6237\u6267\u884cnetlogin\u65f6\u53ef\u80fd\u56e0\u4e3a\u6743\u9650\u4e0d\u591f\u8fd8\u662f\u4e0d\u80fd\u4e0a\u7f51\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5c31\u53ef\u4ee5\u7528 chmod 4755 netlogin \u8bbe\u7f6e\u5176\u4ed6\u7528\u6237\u5728\u6267\u884cnetlogin\u4e5f\u6709root\u7528\u6237\u7684\u6743\u9650\uff0c\u4ece\u800c\u987a\u5229\u4e0a\u7f51\u3002<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u6743\u9650\u7b80\u4ecb Linux\u7cfb\u7edf\u4e0a\u5bf9\u6587\u4ef6\u7684\u6743\u9650\u6709\u7740\u4e25\u683c\u7684\u63a7 [&#8230;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[253,89],"tags":[201,257,200,254,199,258,255,256,198,259,197,202,131,209],"class_list":["post-1450","post","type-post","status-publish","format-standard","hentry","category-fun","category-live","tag-rwt","tag-257","tag-200","tag-254","tag-199","tag-258","tag-255","tag-256","tag-198","tag-259","tag-197","tag-chmod","tag-linux","tag-privillege"],"_links":{"self":[{"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/1450","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1450"}],"version-history":[{"count":3,"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/1450\/revisions"}],"predecessor-version":[{"id":1453,"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/1450\/revisions\/1453"}],"wp:attachment":[{"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1450"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1450"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.zengqq.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1450"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}