MACHINE-ID

NAME
SYNOPSIS
æè¿°
ä¸ OSF UUID çå³ç³»
åå²
åè§
NOTES
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NAME

machine-id - æ¬æº"machine ID"éç½®æ件

SYNOPSIS

/etc/machine-id

æè¿°

/etc/machine-id æ件åå«ä¸ä¸ª å¨å®è£æä½ç³»ç»æ¶çæçãä¸å±äºæ¬ç³»ç»çãç¬ä¸æ äºç"machine ID"ã "machine ID"æ¯ä¸ä¸ª32å符é¿åº¦çååè¿å¶å°ååæ¯åç¬¦ä¸²ï¼ å¹¶ä»¥æ¢è¡ç¬¦ç»å°¾ï¼ å¶æ¬è´¨æ¯ä¸ä¸ª128ä½äºè¿å¶æ´æ°ç16è¿å¶è¡¨ç¤ºã

"machine ID"é常å¨ç³»ç»å®è£æ¶ä»ä¸ä¸ªéæºæ°æºçæï¼ å¹¶ä¸ä¹åæ è®ºç»è¿å¤å°æ¬¡å¼å³æºï¼ä¹ä¸ç´ä¿æä¸åã å¦ä¸æ¹é¢ï¼å¯¹äºæ ç¶æç³»ç»ï¼å¦ææ¤æä»¶ä¸ºç©ºï¼ å°å¨ç³»ç»å¯å¨çæ©æèªå¨éæºçæä¸ä¸ªã

"machine ID"ä¸æ¦çæåºè¯¥æ°¸è¿ä¿æä¸åï¼ å³ä½¿ç³»ç»ç硬件åçäºååä¹ä¸åºè¯¥ä¿®æ¹å®ã

è¿éç"machine ID"ä¸"D-Bus machine ID" éµå®ç¸åçæ ¼å¼ä¸é»è¾ã

æ è®ºä¸»æºçç½ç»éç½®å¦ä½ååï¼ åºç¨ç¨åºå§ç»å¯ä»¥ä½¿ç¨"machine ID" å¨å¨çèå´å精确çè¯å«ä¸å°ä¸»æºãåºäºä¸è¿°ç¹æ§ï¼ "machine ID" æºå¶å¯ç¨äºå代 POSIX ç gethostid(3) ç³»ç»è°ç¨åè½ã

æä½ç³»ç»çå®è£ç¨åºå¯ä»¥å¨å®è£æ¶ä½¿ç¨ systemd-machine-id-setup(1) å·¥å·æ¥åå§å"machine ID"ã å¯ä»¥ä½¿ç¨ systemd-firstboot(1) åå§åå·²æè½½(ä½æªå¯å¨)çç³»ç»éåç"machine ID"ã

è¿å¯ä»¥éè¿ systemd.machine_id= åæ ¸å¼å¯¼é项 æè systemd ç --machine-id= å½ä»¤è¡é项 æ¥è®¾ç½®"machine ID"ãè¿ç§æ¹å¼ç»å¸¸ç¨äºç½ç»å¯å¨çåºæ¯ä¸ã 注æï¼ä¸å¯å°"machine ID"设为å¨é¶å¼ã

ä¸ OSF UUID çå³ç³»

"machine ID"符å RFC 4122 [1] è§è(OSF v4 UUID)ï¼ åæ¶ä¹ç¬¦å Microsoft GUID è§èã

åå²

/etc/machine-id æ件çæ ¼å¼æºèªD-Busç /var/lib/dbus/machine-id æ件ã å®éä¸ï¼/var/lib/dbus/machine-id å¾å¯è½å°±æ¯æå /etc/machine-id çä¸ä¸ªè½¯è¿æ¥ã

åè§

systemd(1), systemd-machine-id-setup(1), gethostid(3), hostname(5), machine-info(5), os-release(5), sd-id128(3), sd_id128_get_machine(3), systemd-firstboot(1)

NOTES

1.

RFC 4122

https://tools.ietf.org/html/rfc4122

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æ¬é¡µé¢ä¸æçç±ä¸æ man æå页计åæä¾ã

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éæ¥å½ä½åéï¼http://www.jinbuguo.com
ä¸æ man æå页计åï¼https://github.com/man-pages-zh/manpages-zh

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