SYSTEMD-ASK-PASSWORD

NAME
SYNOPSIS
æè¿°
é项
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NOTES
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NAME

systemd-ask-password - åç¨æ·ç´¢è¦å¯ç

SYNOPSIS

systemd-ask-password [OPTIONS...] [MESSAGE]

æè¿°

systemd-ask-password éè¿åç¨æ·æ¾ç¤º [MESSAGE] æ¶æ¯çæ¹å¼ç´¢è¦å¯ç æå£ä»¤ã å½å¨TTYä¸è¿è¡æ¶ï¼å®å°ä»TTY读åå¯ç ï¼ ç¶ååå°å¯ç æå°å°æ åè¾åºã å½ä¸å¨TTYä¸è¿è¡æä½¿ç¨ --no-tty é项æ¶ï¼ å®å°åå¨ç³»ç»èå´è¯¢é®å¯ç ï¼ 并å许活å¨ç¨æ·éè¿å¤ç§å¯ç ä»£çè¿è¡åºçã åä¸ç§æ¹å¼ä»ä¾ç¹æè¿ç¨ä½¿ç¨ã

æ¤å·¥å·ä¸»è¦ç¨äºåå¨ç³»ç»èå´ç´¢è¦ä¸ç¹å®äºæ个账æ·çå¯ç ã ä¾å¦ï¼ç¨äºè§£å¼å å¯ç¡¬ççå¯ç ã ç¨äºè§£å¼SSLè¯ä¹¦çå£ä»¤(常ç¨äºHTTP/VPNæå¡å¨)ã

ç®åå¯ç¨çå¯ç ä»£çå¦ä¸ï¼

• Plymouth(8) (ä¸ä¸ªæ¾ç¤ºå¯å¨å¨ç»çå·¥å·ï¼äº¦å¯ç¨ä½å¯å¨æ¶å¯ç ä»£ç)

• å¯å¨æ¶ç´æ¥å¨æ§å¶å°ä¸åç¨æ·ç´¢è¦å¯ç çå¯ç ä»£ç

• éè¿ wall(1) æ¶æ¯è·åå¯ç çå¯ç ä»£ç

• è½å¤è¢«ä¸´æ¶å¯å¨ 以å¤çä¸ç³»åè¿ç»è¯·æ±çå½ä»¤è¡å¯ç ä»£ç

• å¯éå systemctl(1) å½ä»¤ä¸´æ¶å¯å¨çTTYå¯ç ä»£ç

æ¤å¤ï¼ è¿å¯ä»¥æ ¹æ® systemd Password Agent Specification [1] è§èç¼åå¶ä»ç±»åçå¯ç ä»£çã

å¨TTYä¸è¾å¥å¯ç æ¶ï¼ç¨æ·å¯ä»¥æä¸ä¸TABé®ï¼ è¿æ ·å¨è¾å¥å¯ç æ¶å°±ä¸ä¼æ¾ç¤ºæå·ã å¨å¼å§è¾å¥å¯ç åæéæ ¼é®(Backspace)ä¹æåæ ·çææã

é项

è½å¤è¯å«çå½ä»¤è¡é项å¦ä¸ï¼

--icon=

å¨è¯¢é®å¯ç çåæ¶æ¾ç¤ºä¸ä¸ªå¾æ ï¼ ä»ç¨äºå¾å½¢çé¢çå¯ç ä»£çã å¾æ å称å¿é¡»éµå® XDG å¾æ å½åè§è [2] ã

--id=

为æ¤æ¬¡å¯ç ç´¢è¦å¨ä½æå®ä¸ä¸ªæ è¯ç¬¦ï¼ 以辨å«æ- ¤å¯ç éç¨äºå¯ç ä»£ççåªä¸ªè¯·æ±ã å¶ä¸å¿é¡»åå« è¯·æ±å¯ç çå- ç³»ç»ä»¥åå¯ç çä½ç¨å¯¹è±¡ã ä¾å¦ï¼ "--id=cryptsetup:/dev/sda5"

--keyname=

æå®ä¸ä¸ªç¨äºç¼åå¯ç çåæ ¸å¯é¥ç¯(keyring)å称ã 设置æ¤é项表示 å°½å¯è½å°æ¶éå°çå¯ç ç¼åå°æå®çåæ ¸å¯é¥ç¯(keyring)ä¸- (该å¯é¥ç¯å¿é¡»å±äºrootç¨æ·)ã è¥ä¸ --accept-cached ä¸èµ·ä½¿ç¨ï¼ å表示é¦åä»æå®çåæ ¸å¯é¥ç¯ç¼åä¸æ¥æ¾æéå¯ç ï¼ ä»å¨æ¾ä¸å°çæåµä¸ææ示ç¨æ·è¾å¥ï¼ è¿æ ·å½å¤ä¸ªå¯¹è±¡é½ä½¿ç¨åä¸ä¸ªå¯ç æ¶ï¼ å°±å¯ä»¥é¿å让ç¨æ·åå¤è¾å¥åä¸ä¸ªå¯ç ã å¯ç çç¼åææææ¯2.5åéï¼ è¶æ¶åå°è¢«å é¤ã åä¸ä¸ªåæ ¸å¯é¥ç¯ä¸å¯ä»¥ç¼åå¤ä¸ªå¯ç ã å¯ä»¥ä½¿ç¨ keyctl(1) å·¥å·è®¿é®åæ ¸å¯é¥ç¯ä¸ç¼åçå¯ç ã ä¾å¦ï¼ "--keyname=cryptsetup"

--timeout=

设置çå¾ç¨æ·è¾å¥å¯ç çæ大æ¶é¿ã é»è®¤"90s"ï¼è®¾ä¸º"0"表示æ éçå¾ã

--echo

ç´æ¥æ¾ç¤ºç¨æ·çè¾å¥(èä¸æ¯æ¾ç¤ºä¸ºæå·æèä¸æ¾ç¤º)ï¼ å¸¸ç¨äºè¾å¥æ éä¿å¯çç¨æ·åã

--no-tty

ä¸å¨å½åTTYä¸è¯»åå¯ç (å³ä½¿å½åTTYå¯ç¨)ï¼ èæ¯ä»å¯ç ä»£ç读åå¯ç ã

--accept-cached

å许ä»å¯ç ç¼åä¸æ¥æ¾ååæ¾ç»è¾å¥è¿çå¯ç ã

--multiple

ä¸ --accept-cached è¿ç¨ï¼ 表示å¯ä»¥æ¥æ¶å¤ä¸ªå¯ç (æ¯è¡è¾åºä¸ä¸ªå¯ç )ã

--no-output

ä¸å¨æ åè¾åºä¸æå°å¯ç ã æ¤é项常ç¨äº ä»å¸æå°å¯ç åå¨å°åæ ¸å¯é¥ç¯ä¸- (--keyname)ï¼ èä¸å¸ææ¾ç¤ºå¨å±å¹ä¸æè®°å½å°æ¥å¿ä¸ã

-h, --help

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éåºç¶æ

è¿åå¼ä¸º 0 表示æåï¼ éé¶è¿åå¼è¡¨ç¤ºå¤±è´¥ä»£ç ã

åè§

systemd(1), systemctl(1), keyctl(1), plymouth(8), wall(1)

NOTES

1.

systemd Password Agent Specification

http://www.freedesktop.org/wiki/Software/systemd/PasswordAgents

2.

XDG å¾æ å½åè§è

http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html

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æ¬é¡µé¢ä¸æçç±ä¸æ man æå页计åæä¾ã

ç¿»è¯äººåï¼éæ¥å½
éæ¥å½ä½åéï¼http://www.jinbuguo.com
ä¸æ man æå页计åï¼https://github.com/man-pages-zh/manpages-zh

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