{"id":74616,"date":"2023-12-29T08:09:38","date_gmt":"2023-12-29T00:09:38","guid":{"rendered":"\/\/www.dealsbon.com\/?p=74616"},"modified":"2023-12-29T08:09:38","modified_gmt":"2023-12-29T00:09:38","slug":"uhehsljjcqxhsf","status":"publish","type":"post","link":"\/\/www.dealsbon.com\/blog\/74616.html","title":{"rendered":"UID\u548cEUID\u51fd\u6570\uff1a\u7406\u89e3\u8fdb\u7a0b\u6743\u9650\u548c\u8eab\u4efd"},"content":{"rendered":"

  UID\u548cEUID\u51fd\u6570\u662f\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u5e38\u89c1\u7684\u6982\u5ff5\uff0c\u5bf9\u4e8e\u7406\u89e3\u8fdb\u7a0b\u6743\u9650\u548c\u8eab\u4efd\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u8fd9\u4e24\u4e2a\u51fd\u6570\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u5176\u4f5c\u7528\u548c\u91cd\u8981\u6027\u3002<\/p>\n

UID\u51fd\u6570\u7684\u4f5c\u7528\u548c\u539f\u7406<\/h2>\n

  UID\uff08User Identifier\uff09\u662f\u7528\u6237\u6807\u8bc6\u7684\u7f29\u5199\uff0c\u4ee3\u8868\u7528\u6237\u5728\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e2d\u7684\u552f\u4e00\u8eab\u4efd\u6807\u8bc6\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6bcf\u4e2a\u7528\u6237\u90fd\u6709\u4e00\u4e2a\u5bf9\u5e94\u7684UID\uff0c\u7cfb\u7edf\u4f7f\u7528UID\u6765\u8bc6\u522b\u548c\u7ba1\u7406\u7528\u6237\u7684\u8eab\u4efd\u548c\u6743\u9650\u3002<\/p>\n

  UID\u7684\u4f7f\u7528\u8303\u56f4<\/h3>\n

  UID\u7684\u53d6\u503c\u8303\u56f4\u901a\u5e38\u57280\u523065535\u4e4b\u95f4\uff0c\u5176\u4e2d0\u662f\u4fdd\u7559\u7ed9\u8d85\u7ea7\u7528\u6237\uff08root\uff09\u7684UID\uff0c\u5176\u4ed6UID\u5219\u5bf9\u5e94\u666e\u901a\u7528\u6237\u6216\u7cfb\u7edf\u7528\u6237\u3002\u6bcf\u4e2a\u7528\u6237\u767b\u5f55\u7cfb\u7edf\u65f6\uff0c\u7cfb\u7edf\u4f1a\u9a8c\u8bc1\u5176UID\u4ee5\u786e\u5b9a\u5176\u8eab\u4efd\u548c\u6743\u9650\u3002<\/p>\n

  UID\u51fd\u6570\u7684\u8c03\u7528\u65b9\u6cd5<\/h3>\n

  \u5728C\u8bed\u8a00\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528getuid\u51fd\u6570\u6765\u83b7\u53d6\u5f53\u524d\u8fdb\u7a0b\u7684UID\uff0c\u901a\u8fc7setuid\u51fd\u6570\u53ef\u4ee5\u6539\u53d8\u8fdb\u7a0b\u7684UID\u3002\u8fd9\u4e9b\u51fd\u6570\u5728\u7ba1\u7406\u8fdb\u7a0b\u6743\u9650\u548c\u8eab\u4efd\u65f6\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/p>\n

EUID\u51fd\u6570\u7684\u4f5c\u7528\u548c\u539f\u7406<\/h2>\n

  EUID\uff08Effective User Identifier\uff09\u662f\u6709\u6548\u7528\u6237\u6807\u8bc6\u7684\u7f29\u5199\uff0c\u5b83\u662f\u8fdb\u7a0b\u5f53\u524d\u6709\u6548\u7684\u7528\u6237\u8eab\u4efd\u6807\u8bc6\u3002\u4e0eUID\u7c7b\u4f3c\uff0cEUID\u4e5f\u626e\u6f14\u7740\u7ba1\u7406\u8fdb\u7a0b\u6743\u9650\u548c\u8eab\u4efd\u7684\u91cd\u8981\u89d2\u8272\u3002<\/p>\n

  EUID\u4e0e\u6743\u9650\u7ba1\u7406<\/h3>\n

  \u5728UNIX\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u7684EUID\u51b3\u5b9a\u4e86\u5b83\u5bf9\u6587\u4ef6\u548c\u8d44\u6e90\u7684\u8bbf\u95ee\u6743\u9650\u3002\u5f53\u8fdb\u7a0b\u8bd5\u56fe\u6267\u884c\u67d0\u4e9b\u654f\u611f\u64cd\u4f5c\u65f6\uff0c\u7cfb\u7edf\u4f1a\u6839\u636e\u5176EUID\u6765\u5224\u65ad\u662f\u5426\u5177\u6709\u8db3\u591f\u7684\u6743\u9650\uff0c\u8fd9\u5728\u4fdd\u969c\u7cfb\u7edf\u5b89\u5168\u65b9\u9762\u8d77\u5230\u4e86\u5173\u952e\u4f5c\u7528\u3002<\/p>\n

  EUID\u51fd\u6570\u7684\u8c03\u7528\u65b9\u6cd5<\/h3>\n

  \u7c7b\u4f3c\u4e8eUID\u51fd\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528geteuid\u51fd\u6570\u83b7\u53d6\u5f53\u524d\u8fdb\u7a0b\u7684EUID\uff0c\u5e76\u901a\u8fc7seteuid\u51fd\u6570\u6765\u6539\u53d8\u8fdb\u7a0b\u7684EUID\u3002\u8fd9\u4e9b\u51fd\u6570\u7684\u7075\u6d3b\u4f7f\u7528\u5bf9\u4e8e\u7ba1\u7406\u8fdb\u7a0b\u7684\u6743\u9650\u548c\u5b89\u5168\u6027\u81f3\u5173\u91cd\u8981\u3002<\/p>\n

\u603b\u7ed3<\/h2>\n

  \u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u8bfb\u8005\u5bf9\u4e8eUID\u548cEUID\u51fd\u6570\u7684\u4f5c\u7528\u548c\u539f\u7406\u6709\u4e86\u66f4\u6df1\u5165\u7684\u4e86\u89e3\u3002<\/strong>\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u7684\u6743\u9650\u548c\u8eab\u4efd\u662f\u81f3\u5173\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u800cUID\u548cEUID\u51fd\u6570\u5219\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u7ba1\u7406\u548c\u63a7\u5236\u8fd9\u4e9b\u6982\u5ff5\u7684\u5173\u952e\u5de5\u5177\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

UID\u548cEUID\u51fd\u6570\u662f\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u5e38\u89c1\u7684\u6982\u5ff5\uff0c\u5bf9\u4e8e\u7406\u89e3\u8fdb\u7a0b\u6743\u9650\u548c\u8eab\u4efd\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u8fd9\u4e24\u4e2a\u51fd\u6570\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u5176\u4f5c\u7528\u548c\u91cd\u8981\u6027\u3002UID\u51fd\u6570\u7684\u4f5c\u7528\u548c\u539f\u7406<\/p>\n","protected":false},"author":1,"featured_media":64183,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[36],"tags":[52],"class_list":["post-74616","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-wxtx"],"_links":{"self":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts\/74616"}],"collection":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/comments?post=74616"}],"version-history":[{"count":0,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts\/74616\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/media\/64183"}],"wp:attachment":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/media?parent=74616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/categories?post=74616"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/tags?post=74616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}