{"id":3280,"date":"2011-09-07T19:56:24","date_gmt":"2011-09-07T11:56:24","guid":{"rendered":"http:\/\/edsionte.com\/techblog\/?p=3280"},"modified":"2011-09-14T22:45:19","modified_gmt":"2011-09-14T14:45:19","slug":"%e5%9c%a8etcpasswd%e4%b8%ad%e5%be%97%e5%88%b0%e9%9d%9e%e7%b3%bb%e7%bb%9f%e5%b8%90%e5%8f%b7%e7%9a%84%e7%94%a8%e6%88%b7%e5%88%97%e8%a1%a8","status":"publish","type":"post","link":"http:\/\/edsionte.com\/techblog\/archives\/3280","title":{"rendered":"\u5728\/etc\/passwd\u4e2d\u5f97\u5230\u666e\u901a\u7528\u6237\u5217\u8868"},"content":{"rendered":"<p>\/etc\/passwd\u6587\u4ef6\u7528\u6765\u4fdd\u5b58\u7cfb\u7edf\u4e2d\u5f53\u524d\u6240\u6709\u7684\u7528\u6237\u4fe1\u606f\uff0c\u8be5\u6587\u4ef6\u5bf9\u6240\u6709\u7528\u6237\u90fd\u53ef\u89c1\u3002\u5728\u8be5\u6587\u4ef6\u4e2d\uff0c\u6bcf\u884c\u4fe1\u606f\u4ee3\u8868\u4e00\u4e2a\u7528\u6237\u3002\u6bcf\u4e2a\u7528\u6237\u7684\u4fe1\u606f\u75317\u90e8\u5206\u7ec4\u6210\uff1a<\/p>\n<p><strong>\u7528\u6237\u540d\uff1a\u52a0\u5bc6\u540e\u7684\u7528\u6237\u5bc6\u7801\uff1a\u7528\u6237ID\uff08UID\uff09\uff1a\u7528\u6237\u6240\u5728\u7ec4ID\uff08GID\uff09\uff1a\u7528\u6237\u5168\u540d\u4ee5\u53ca\u7528\u6237\u4fe1\u606f\uff1a\u7528\u6237\u4e3b\u76ee\u5f55\uff1a\u8be5\u7528\u6237\u767b\u5f55\u65f6\u6240\u7528\u7684\u547d\u4ee4\u89e3\u91ca\u5668<\/strong><\/p>\n<p>\u5728\u8be5\u6587\u4ef6\u4e2d\uff0c\u6709\u4e9b\u7528\u6237\u5e76\u4e0d\u662f\u7528\u6237\u5efa\u7acb\u7684\uff0c\u800c\u662f\u7cfb\u7edf\u5e10\u53f7\u3002\u6bd4\u5982\u5728\u4e0a\u8ff0passwd\u6587\u4ef6\u4e2d\uff0csys\u3001bin\u7b49\u7528\u6237\u5c31\u662f\u7cfb\u7edf\u6240\u4fdd\u7559\u7684\u7528\u6237\u3002<\/p>\n<pre class=\"brush:c\">edsionte@edsionte-desktop:~$ cat \/etc\/passwd\r\nroot:x:0:0:root:\/root:\/bin\/bash\r\ndaemon:x:1:1:daemon:\/usr\/sbin:\/bin\/sh\r\nbin:x:2:2:bin:\/bin:\/bin\/sh\r\nsys:x:3:3:sys:\/dev:\/bin\/sh\r\nsync:x:4:65534:sync:\/bin:\/bin\/sync\r\ngames:x:5:60:games:\/usr\/games:\/bin\/sh\r\n\u2026\u2026\u2026\u2026\r\nguest:x:1001:1001:guest,,,,:\/home\/guest:\/bin\/bash\r\nlc:x:1002:1002:lc,,,,:\/home\/lc:\/bin\/bash<\/pre>\n<p>\u73b0\u5728\u6709\u4e00\u4e2a\u9879\u76ee\u9700\u6c42\uff0c\u5373\u4ece\/etc\/passwd\u6587\u4ef6\u4e2d\u5c06\u666e\u901a\u7528\u6237\u7684\u7528\u6237\u540d\u89e3\u6790\u51fa\u6765\u3002\u8981\u5b8c\u6210\u8fd9\u4e2a\u8981\u6c42\uff0c\u5173\u952e\u662f\u627e\u51fa\u7cfb\u7edf\u7528\u6237\u548c\u666e\u901a\u7528\u6237\u4e4b\u95f4\u7684\u5dee\u522b\u3002\u5728useradd\u547d\u4ee4\u7684man\u624b\u518c\u4e2d\u5173\u4e8e-u\u9009\u9879\u6709\u8fd9\u6837\u7684\u63cf\u8ff0\uff1a<\/p>\n<p><strong>-u uid \u4f7f \u7528 \u8005 \u7684 ID \u503c \u3002 \u5fc5 \u987b \u4e3a \u552f \u4e00 \u7684 ID \u503c \uff0c \u9664 \u975e \u7528 -o \u9009 \u9879 \u3002 \u6570 \u5b57 \u4e0d \u53ef \u4e3a \u8d1f \u503c\u3002\u9884\u8bbe \u4e3a \u6700 \u5c0f \u4e0d \u5f97 \u5c0f \u4e8e 999 \u800c \u9010 \u6b21 \u589e \u52a0 \u3002 0~ 999 \u4f20 \u7edf \u4e0a \u662f \u4fdd \u7559 \u7ed9 \u7cfb \u7edf \u5e10 \u53f7 \u4f7f \u7528\u3002<\/strong><\/p>\n<p>\u56e0\u6b64\uff0c\u53ef\u4ee5\u901a\u8fc7UID\u6765\u533a\u5206\u666e\u901a\u7528\u6237\u548c\u7cfb\u7edf\u7528\u6237\uff0c\u5373UID\u5927\u4e8e999\u7684\u4e3a\u666e\u901a\u7528\u6237\uff0c\u5426\u5219\u4e3a\u7cfb\u7edf\u7528\u6237\u3002<\/p>\n<p><em><strong>\u540e\u8bb0\uff1a\u672c\u6587\u53d1\u51fa\u540e\uff0c\u6709\u51e0\u4e2a\u670b\u53cb\u6307\u51fa\u8fd9\u4e2a\u529e\u6cd5\u53ea\u9002\u5408ubuntu\u7cfb\u7edf\uff0c\u56e0\u6b64\u5e0c\u671b\u5927\u5bb6\u6ce8\u610f\u4f7f\u7528\u8303\u56f4\u3002<\/strong><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\/etc\/passwd\u6587\u4ef6\u7528\u6765\u4fdd\u5b58\u7cfb\u7edf\u4e2d\u5f53\u524d\u6240\u6709\u7684\u7528\u6237\u4fe1\u606f\uff0c\u8be5\u6587\u4ef6\u5bf9\u6240\u6709\u7528\u6237\u90fd\u53ef\u89c1\u3002\u5728\u8be5\u6587\u4ef6\u4e2d\uff0c\u6bcf\u884c\u4fe1\u606f\u4ee3\u8868\u4e00 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[126],"tags":[108,250],"class_list":["post-3280","post","type-post","status-publish","format-standard","hentry","category-126","tag-linux","tag-250"],"views":10278,"_links":{"self":[{"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/posts\/3280","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/comments?post=3280"}],"version-history":[{"count":0,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/posts\/3280\/revisions"}],"wp:attachment":[{"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/media?parent=3280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/categories?post=3280"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/tags?post=3280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}