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              pwconv命令用法【每日一個知識點第176期-Linux】

              pwconv命令用來開啟用戶的投影密碼。Linux系統里的用戶和群組密碼,分別存放在名稱為passwd和group的文件中, 這兩個文件位于/etc目錄下。因系統運作所需,任何人都得以讀取它們,造成安全上的破綻。投影密碼將文件內的密碼改存在/etc目錄下的shadow和gshadow文件內,只允許系統管理者讀取,同時把原密碼置換為”x”字符,有效的強化了系統的安全性。

              語法

              pwconv

              實例

              cat /etc/passwd | grep test
              test:x:3001:3001::/home/test:/bin/sh

              此時可以發現密碼段是x

              cat /etc/shadow | grep test
              test:$6$nYOEWamm$bz07nlv/.RgJufb3FAqJJeULfwybzgxmrWqbk7O4vI0KsT6N.ujrh6dDIUcAJdfjksyuyAFDPIngZeD3cgcf.0:15022:0:99999:7:::

              《Linux學習每日一個知識點》欄目是馬哥教育Linux云計算年薪20萬+的學員社群特別發起,分享Linux工具、Linux語法、Linux項目等知識點,幫助大家快速的了解Linux學習,快速步入Linux高薪的快車道。

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