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PASSWDSection: File formats (5)Updated: January 5, 1998 Index Return to Main Contents ̾Á°passwd - ¥Ñ¥¹¥ï¡¼¥É¥Õ¥¡¥¤¥ëÀâÌÀpasswd ¥Õ¥¡¥¤¥ë¤Ï¤½¤Î¥·¥¹¥Æ¥à¤Î¥¢¥«¥¦¥ó¥È¥ê¥¹¥È¤ò»ý¤Ã¤¿¥Æ¥¥¹¥È¥Õ¥¡¥¤¥ë¤Ç¤¢¤ë¡£ ¤½¤ì¤¾¤ì¤Î¥¢¥«¥¦¥ó¥È¤´¤È¤Ë¥æ¡¼¥¶¡¼ID¡¢¥°¥ë¡¼¥×ID¡¢¥Û¡¼¥à¥Ç¥£¥ì¥¯¥È¥ê¡¢ »ÈÍѤ¹¤ëshell¥³¥Þ¥ó¥É¤Î¼ïÎà¡¢Åù¤ÎÍÍѤʾðÊó¤òÄ󶡤·¤Æ¤¤¤ë¡£ ¤Þ¤¿¡¢¥¢¥«¥¦¥ó¥È¤´¤È¤Ë°Å¹æ²½¤µ¤ì¤¿¥Ñ¥¹¥ï¡¼¥É¤ò»ý¤Ä¾ì¹ç¤â¤¢¤ë¡£ ¥Ñ¥¹¥ï¡¼¥É¥Õ¥¡¥¤¥ë¤Î¥×¥í¥Æ¥¯¥·¥ç¥ó¤Ï¡¢Á´¥æ¡¼¥¶¡¼¤Ë ÆÉ¤ß¼è¤ê¤Îµö²Ä(¿§¡¹¤Ê¥æ¡¼¥Æ¥£¥ê¥Æ¥£¡¢Î㤨¤Ð ls(1) ¤Ç¤Ï¥æ¡¼¥¶¡¼ID¤ò¥æ¡¼¥¶¡¼Ì¾¤Ë¤¹¤ë¤Î¤Ë»È¤Ã¤Æ¤¤¤ë)¤òÍ¿¤¨¡¢¥¹¡¼¥Ñ¡¼ ¥æ¡¼¥¶¡¼¤Ë¤Î¤ß½ñ¤¹þ¤ßµö²Ä¤òÍ¿¤¨¤ë¤è¤¦¤Ë¤¹¤Ù¤¤Ç¤¢¤ë¡£¸Å¤Îɤ»þÂå¤Ë¤Ï¡¢¤³¤ÎÁ´¥æ¡¼¥¶¡¼¤ËÂФ¹¤ëÆÉ¤ß¼è¤êµö²Ä¤Ï ÆÃÊ̤ÊÌäÂê¤òµ¯¤³¤µ¤Ê¤«¤Ã¤¿¡£Ã¯¤Ç¤â°Å¹æ²½¤µ¤ì¤¿¥Ñ¥¹¥ï¡¼¥É¤ò ÆÉ¤à»ö¤¬½ÐÍ褿¤¬¡¢¾å¼ê¤ËÁª¤Ð¤ì¤¿¥Ñ¥¹¥ï¡¼¥É¤òÇˤë¤Î¤Ë¤Ï Åö»þ¤Î¥Ï¡¼¥É¥¦¥§¥¢¤Î®Å٤Ϥ¢¤Þ¤ê¤ËÃÙ¤«¤Ã¤¿¤·¡¢¤½¤ì¤Ë²Ã¤¨¤Æ ͧ¹¥Åª¤Ê¥æ¡¼¥¶¡¼¼Ò²ñ¤Ç¤¢¤ë»ö¤ò´ðËÜŪ¤ÊÁ°Äó¤È¤·¤Æ¤¤¤¿¡£ ºÇ¶á¤Ç¤Ï¿¤¯¤Î¿Í¤¬¡¢²¿¤é¤«¤Î¥Ð¡¼¥¸¥ç¥ó¤Îshadow password suite (ÌõÃí:¥·¥ã¥É¥¦¡¦¥Ñ¥¹¥ï¡¼¥Éµ¡Ç½¤ò¼Â¸½¤¹¤ë¤¿¤á¤Î¥×¥í¥°¥é¥à·² ¤Î»ö¡£JF¤ÎShadow-Password-HOWTO¤ò»²¾È) ¤òư¤«¤·¤Æ¤¤¤ë¡£¤½¤Î¾ì¹ç /etc/passwd ¥Õ¥¡¥¤¥ë¤Î¥Ñ¥¹¥ï¡¼¥ÉÍó¤Ë¤Ï¡¢°Å¹æ²½¤µ¤ì¤¿¥Ñ¥¹¥ï¡¼¥É¤ÎÂå¤ï¤ê¤Ë À±¥Þ¡¼¥¯(*)¤¬ÀßÄꤵ¤ì¤ë¡£°Å¹æ²½¤µ¤ì¤¿¥Ñ¥¹¥ï¡¼¥É¤Ï¡¢¥ë¡¼¥È¤À¤± ¤ËÆÉ¤ß¼è¤ê¤¬µö¤µ¤ì¤¿ /etc/shadow ¥Õ¥¡¥¤¥ë¤ÎÃæ¤ËÀßÄꤵ¤ì¤ë¡£ shadow password¤¬»È¤ï¤ì¤Æ¤¤¤ë¤«¤É¤¦¤«¤Ë¤Ï¤è¤é¤º¡¢Â¿¤¯¤Î¥·¥¹¥Æ¥à ´ÉÍý¼Ô¤Ï¡¢°Å¹æ²½¥Ñ¥¹¥ï¡¼¥ÉÍó¤ËÀ±¥Þ¡¼¥¯¤òÀßÄꤹ¤ë¤³¤È¤Ç¡¢ ¤½¤Î¥æ¡¼¥¶¡¼¤¬¥Ñ¥¹¥ï¡¼¥É¤Ç¤Îǧ¾Ú¤¬¼õ¤±¤é¤ì¤Ê¤¤ ¥æ¡¼¥¶¡¼¤È¤Ê¤ë¤è¤¦¤Ë¤·¤Æ¤¤¤ë¡£(²¼µ¤Î"Ãí°Õ"¹à¤ò»²¾È¤Î»ö) ¿·¤·¤¤¥æ¡¼¥¶¡¼¤òÅÐÏ¿¤¹¤ë¾ì¹ç¤Ë¤Ï¡¢¥Ñ¥¹¥ï¡¼¥ÉÍó¤ËÀ±¥Þ¡¼¥¯¤òÀßÄꤷ¤Æ¤ª¤ passwd(1) ¥³¥Þ¥ó¥É¤Ë¤è¤êÀßÄꤹ¤ë¤è¤¦¤Ë¤¹¤ë¡£ ¥Ñ¥¹¥ï¡¼¥É¥Õ¥¡¥¤¥ë¤Ï1¹Ô¤´¤È¤Ë1¥¨¥ó¥È¥ê¤ò»ý¤Á¡¢¤½¤ì¤¾¤ì ¤Î¹Ô¤Ï¼¡¤Î½ñ¼°¤ò»ý¤Ã¤Æ¤¤¤ë:
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Ãí°Õ¥æ¡¼¥¶¡¼¥°¥ë¡¼¥×¤òºî¤ê¤¿¤¤¾ì¹ç¤Ë¤Ï¡¢Æ±¤¸¥°¥ë¡¼¥×¤Ë°¤¹¤ë ¥æ¡¼¥¶¡¼¤ÎGID¤ÏƱ¤¸ÃͤȤ·¡¢¤½¤ÎGID¤ò/etc/group¤ÎÃæ¤Ë ÄêµÁ¤·¤Æ¤ª¤¯É¬Íפ¬¤¢¤ë¡£¤½¤¦¤·¤Ê¤¤¤È¥°¥ë¡¼¥×¤òºî¤Ã¤¿¤³¤È¤Ë¤Ï¤Ê¤é¤Ê¤¤¡£°Å¹æ²½¥Ñ¥¹¥ï¡¼¥É¤È¤·¤ÆÀ±¥Þ¡¼¥¯¤òÀßÄꤹ¤ë¤È¡¢ login(1) ¤ò»È¤Ã¤Æ¤Î¥í¥°¥¤¥ó¤¬¤Ç¤¤Ê¤¯¤Ê¤ë¤¬¡¢ rlogin(1) ¤Ç¤Ï¤Þ¤À¥í¥°¥¤¥ó¤¬¤Ç¤¤ë¤·¡¢ rsh(1) ¤ä cron(1) ¤ä at(1) ¤â¤·¤¯¤Ï¥á¥¤¥ë¤Î¥Õ¥£¥ë¥¿Åù¤ò»È¤Ã¤ÆÂ¸ºß¤·¤Æ¤¤¤ë¥×¥í¥»¥¹¤ò ¼Â¹Ô¤µ¤»¤¿¤ê¡¢¿·¤¿¤Ê¥×¥í¥»¥¹¤òµ¯Æ°¤·¤¿¤ê¤¹¤ë»ö¤¬¤Ç¤¤ë¡£ »ÈÍѤ¹¤ëshell¤ÎÍó¤ò¡¢Ã±¤ËÊѹ¹¤¹¤ë¤³¤È¤Ç¥¢¥«¥¦¥ó¥È¤ò»È¤¨ ¤Ê¤¤¤è¤¦¤Ë¤¹¤ë¤Î¤âƱÍͤηë²Ì¤¬ÆÀ¤é¤ì¤ë¡£¤½¤Î¾ì¹ç¤Ç¤Ï¤µ¤é¤Ë su(1) ¤â͸ú¤Ê¤Þ¤Þ»Ä¤Ã¤Æ¤·¤Þ¤¦¡£ ¥Õ¥¡¥¤¥ë/etc/passwd´ØÏ¢¹àÌÜpasswd(1), login(1), su(1), group(5), shadow(5)
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