SYSTEMD
SYSTEMD-SOCKET-ACTIVATE
NAMESYNOPSIS
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NAME
systemd-socket-activate - æµè¯åºäºå¥æ¥åå¯å¨çå®æ¤è¿ç¨
SYNOPSIS
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systemd-socket-activate [OPTIONS...] daemon [OPTIONS...] |
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systemd-socket-activate ç¨äºæµè¯å¯å¨åºäºå¥æ¥åå¯å¨çæå¡è¿ç¨ã è¿å¯ç¨äºé对å个è¿æ¥å¯å¨åç¬çæå¡è¿ç¨å®ä¾ã
å¯ä»¥éè¿ daemon ä¹åç [OPTIONS...] ç»è¦å¯å¨çæå¡è¿ç¨ä¼ éå½ä»¤è¡é项ã
å¦æ使ç¨äº --inetd é项ï¼é£ä¹ socket æ件æ述符å°è¢«ç¨ä½è¢«è°ç¨è¿ç¨çæ åè¾å¥ä¸æ åè¾åºã å¦åï¼å°ç»§æ¿ç°æçæ åè¾å¥ä¸æ åè¾åºï¼è socket å°è¢«ä½ä¸º3å·ææ´é«çæ件æ述符ã éè¿ $LISTEN_FDS ä¼ éç» systemd-socket-activate ç socket å°ä¼è¢«ç´æ¥ä¼ éç»è¢«è°ç¨çè¿ç¨ï¼ éè¿ --listen= æå®çå¶ä» socket å°ä¼ä½¿ç¨è¿ç»æ述符(consecutive descriptor)ã systemd-socket-activate é»è®¤å¨æµå¼å¥æ¥å(stream socket)ä¸çå¬ï¼ ä½æ¯å¯ä»¥ä½¿ç¨ --datagram é项æ¹ä¸ºå¨æ°æ®æ¥å¥æ¥å(datagram socket)ä¸çå¬ï¼ æèä½¿ç¨ --seqpacket é项æ¹ä¸ºå¨é¡ºåºåå¥æ¥å(sequential packet socket)ä¸çå¬ã
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-l address, --listen=address
å¨æå®ç address ä¸çå¬ã æ¥åä¸ä¸ªç±»ä¼¼ "2000"(端å£) æ "127.0.0.1:2001"(å°å:端å£) è¿æ ·çå符串ã
-a, --accept
为æ¯ä¸ªè¿æ¥å¯å¨ä¸ä¸ªæå¡è¿ç¨å®ä¾ï¼å¹¶ä¼ éè¿æ¥å¥æ¥åã
-d, --datagram
å¨æ°æ®æ¥å¥æ¥å(SOCK_DGRAM)ä¸çå¬ï¼èä¸æ¯é»è®¤çæµå¼å¥æ¥å(SOCK_STREAM)ã ä¸è½ä¸ --seqpacket åæ¶ä½¿ç¨ã
--seqpacket
å¨é¡ºåºåå¥æ¥å(SOCK_SEQPACKET)ä¸çå¬ï¼èä¸æ¯é»è®¤çæµå¼å¥æ¥å- (SOCK_STREAM)ã ä¸è½ä¸ --datagram åæ¶ä½¿ç¨ã
--inetd
ä½¿ç¨ inetd åè®®ä¼ éæ件æ述符ï¼ä¹å°±æ¯ä½ä¸ºæ åè¾å¥ä¸æ åè¾åºï¼ èä¸æ¯æ°å¼çä½¿ç¨ $LISTEN_FDS åéæ¥ä¼ éæ件æ述符ã
-E VAR[=VALUE], --setenv=VAR[=VALUE]
å被è°ç¨çè¿ç¨ä¼ éç¯å¢åéã å¦æå¨ VAR åé¢ ç´§è·ç "=" 符å·ï¼ é£ä¹ä¼å°å¶è§ä¸º"åé=å¼"çç»æã å¦åè¡¨ç¤ºå° systemd-socket-activate ææ¥æçåååéä¼ éè¿å»ã
--fdname=NAME[:NAME...]
æå®è¦ä¼ éçæ件æ述符å称ã è¿çä»·äºå¨ååæ件ä¸è®¾ç½® FileDescriptorName= 并ä¸å¯ç¨ sd_listen_fds_with_names(3) ã å¯ä»¥å¤æ¬¡ä½¿ç¨æ¤é项以æå®å¤ä¸ªæ述符ï¼ä¹å¯ä»¥å¨åä¸ä¸ªé项ä¸- 使ç¨åå·åéå¤ä¸ªæ述符ã å¦æç»åºçåå- å¤äºæ件æ述符ç个æ°ï¼é£ä¹å¤åºçååå°ä¼è¢«å¿½ç¥ã å¦æç»åºçåå- å°äºæ件æ述符ç个æ°ï¼é£ä¹å¤åºçæ件æ述符å°è¢«è§ä¸ºæªå½åçã
-h, --help
æ¾ç¤ºç®çç帮å©ä¿¡æ¯å¹¶éåºã
--version
æ¾ç¤ºç®çççæ¬ä¿¡æ¯å¹¶éåºã
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$LISTEN_FDS, $LISTEN_PID, $LISTEN_FDNAMES
åè§ sd_listen_fds(3) æåã
$SYSTEMD_LOG_TARGET, $SYSTEMD_LOG_LEVEL, $SYSTEMD_LOG_COLOR, $SYSTEMD_LOG_LOCATION
ä¸ systemd(1) ä¸çå«ä¹ç¸åã
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Example 1. å¨ 2000 端å£ä¸è¿è¡ä¸ä¸ªåæ¾æå¡ã
$ systemd-socket-activate -l 2000 --inetd -a cat
Example 2. è¿è¡ä¸ä¸ªåºäºå¥æ¥åå¯å¨ç systemd-journal-gatewayd(8) å®ä¾
$ systemd-socket-activate -l 19531 /usr/lib/systemd/systemd-journal-gatewayd
åè§
systemd(1), systemd.socket(5), systemd.service(5), sd_listen_fds(3), sd_listen_fds_with_names(3), cat(1)
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