services

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Version: 1996-01-11 (openSuse - 09/10/07)

Section: 5 (Format de fichier)

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services - ¥¤¥ó¥¿¡¼¥Í¥Ã¥È ¥Í¥Ã¥È¥ï¡¼¥¯¥µ¡¼¥Ó¥¹ ¥ê¥¹¥È

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¥Ý¡¼¥ÈÈÖ¹æ¤Ï¡¢IANA (Internet Assigned Numbers Authority) ¤Ë¤è¤Ã¤Æ ³ä¤êÅö¤Æ¤é¤ì¤Æ¤ª¤ê¡¢¸½ºß¤Ï¥Ý¡¼¥ÈÈÖ¹æ¤ò³ä¤êÅö¤Æ¤ëºÝ¤Ë TCP ¤È UDP ¤ÎξÊý¤Î¥×¥í¥È¥³¥ë¤ò³ä¤êÅö¤Æ¤ë¤³¤È¤Ë¤Ê¤Ã¤Æ¤¤¤ë¡£ ¤½¤Î¤¿¤á¡¢¤Û¤È¤ó¤É¤Î¥µ¡¼¥Ó¥¹¤ËÂФ·¤Æ¡¢ ¤¿¤È¤¨ TCP ¤À¤±¤Î¥µ¡¼¥Ó¥¹¤Î¾ì¹ç¤Ç¤¢¤Ã¤Æ¤â¡¢Âбþ¤¹¤ë¹àÌܤ¬Æó¤Ä¤¢¤ë¤³¤È¤Ë¤Ê¤ë¡£

1024 ¤è¤ê¾®¤µ¤¤¥Ý¡¼¥ÈÈÖ¹æ (¤¤¤ï¤æ¤ë 'low numbered' ¥Ý¡¼¥È) ¤Ï ´ÉÍý¼Ô (root) ¸¢¸Â¤Ë¤è¤Ã¤Æ¤Î¤ß»ÈÍѤ¹¤ë¤³¤È¤¬¤Ç¤­¤ë (bind(2), tcp(7), udp(7) »²¾È)¡£ ¤³¤ì¤Ï¡¢¤³¤ì¤é¤Î¥Ý¡¼¥È¤ËÀܳ¤¹¤ë¥¯¥é¥¤¥¢¥ó¥È¤ËÂФ·¤Æ¡¢ ¤½¤Î¥Ý¡¼¥È¤ÇÆ°¤¤¤Æ¤¤¤ë¥µ¡¼¥Ó¥¹¤¬É¸½àŪ¤Ê¼ÂÁõ¤Ç¤¢¤ê¡¢ ¤½¤Î·×»»µ¡¤Î¥æ¡¼¥¶¡¼¤¬Æ°¤«¤·¤Æ¤¤¤ë ÉÔÀµ¤Ê¥µ¡¼¥Ó¥¹¤Ç¤Ï¤Ê¤¤¤³¤È¤òÊݾڤ¹¤ë¤¿¤á¤Ç¤¢¤ë¡£ IANA ¤ËÌÀµ­¤µ¤ì¤Æ¤¤¤ë¤è¤¯»ÈÍѤµ¤ì¤ë¥Ý¡¼¥ÈÈÖ¹æ¤Ï¡¢ Ä̾盧¤Î¤è¤¦¤Ê´ÉÍý¼Ô¤À¤±¤¬»ÈÍѤǤ­¤ëÈϰϤËÇÛÃÖ¤µ¤ì¤ë¡£

services ¥Õ¥¡¥¤¥ë¤Ë¤¢¤ë¥µ¡¼¥Ó¥¹¤ËÂФ¹¤ë¹àÌܤ¬¤¢¤Ã¤Æ¤â¡¢É¬¤º¤·¤â¤½¤Î¥µ¡¼¥Ó¥¹¤¬¸½ ºß¤½¤Î·×»»µ¡¤ÇÆ°¤¤¤Æ¤¤¤ëÌõ¤Ç¤Ï¤Ê¤¤¡£ÍøÍѲÄǽ¤Ê¥¤¥ó¥¿¡¼¥Í¥Ã¥È¥µ¡¼¥Ó¥¹¤ÎÀßÄê¤Ë ¤Ä¤¤¤Æ¤Ï inetd.conf(5) ¤Ëµ­½Ò¤µ¤ì¤Æ¤¤¤ë¡£¤¿¤À¤·¡¢¤¹¤Ù¤Æ¤Î¥µ¡¼¥Ó¥¹¤¬ inetd(8) ¤Ë¤è¤Ã¤Æµ¯Æ°¤µ¤ì¤ë¤ï¤±¤Ç¤Ï¤Ê¤¤¤Î¤Ç¡¢ inetd.conf(5) ¤Ë¤Ï½ñ¤«¤ì¤Æ¤¤¤Ê¤¤¥µ¡¼¥Ó¥¹¤â¤¢¤ë¤³¤È¤ËÃí°Õ¤¹¤ëɬÍפ¬¤¢¤ë¡£ Æäˡ¢¥Í¥Ã¥È¥Ë¥å¡¼¥¹ (NNTP) ¤ä ¥á¡¼¥ë (SMTP) ¤Î¥µ¡¼¥Ð¡¼¤Ï¡¢¥·¥¹¥Æ¥àµ¯Æ°»þ¤Î ¥¹¥¯¥ê¥×¥È¤«¤éµ¯Æ°¤µ¤ì¤ë¤³¤È¤¬Â¿¤¤¡£

services ¥Õ¥¡¥¤¥ë¤Î¾ì½ê¤Ï¡¢ /usr/include/netdb.h Ãæ¤Î _PATH_SERVICES ¤Ë¤è¤Ã¤ÆÄêµÁ¤µ¤ì¤Æ¤¤¤ë¡£ ¤³¤ÎÃͤÏÄ̾ï /etc/services ¤ËÀßÄꤵ¤ì¤Æ¤¤¤ë¡£


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service-name   port/protocol   [aliases ...]
service-name
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port
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protocol
»ÈÍѤµ¤ì¤ë¥×¥í¥È¥³¥ë¤Î¼ïÎà¡£¤³¤ÎÍó¤Ï¡¢ protocols(5) ¥Õ¥¡¥¤¥ë¤ÎÃæ¤Î¹àÌܤȰìÃפ·¤Æ¤¤¤ëɬÍפ¬¤¢¤ë¡£ Ä̾ï»ÈÍѤµ¤ì¤ëÃͤϡ¢ tcp ¤È udp ¤Ç¤¢¤ë¡£
aliases
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¸Å¤¤¥Ð¡¼¥¸¥ç¥ó¤È¤ÎÀ°¹çÀ­¤ÎÌäÂ꤫¤é¡¢¼ÂºÝ¤Ë¤Ï port ÈÖ¹æ¤È protocol ¤Î´Ö¤Î¥¹¥é¥Ã¥·¥å (/) ¤Ï¡¢¥¹¥é¥Ã¥·¥å¤«¥³¥ó¥Þ (,) ¤Î¤É¤Á¤é¤Ç¤â¹½¤ï¤Ê¤¤¡£ ¤·¤«¤·¤Ê¤¬¤é¡¢º£¤Ê¤ª¥³¥ó¥Þ¤ò»ÈÍѤ¹¤ë¤Î¤Ï˾¤Þ¤·¤¤¤³¤È¤Ç¤Ï¤Ê¤¤¡£

¤³¤Î¥Õ¥¡¥¤¥ë¤Ï¡¢Yellow Pages/NIS ¤ä BIND/Hesiod ¤Î¤è¤¦¤Ê¥Í¥Ã¥È¥ï¡¼¥¯¾å¤Î̾Á° ¥µ¡¼¥Ó¥¹¤òÍѤ¤¤Æ¡¢¥Í¥Ã¥È¥ï¡¼¥¯¤òÄ̤¸¤ÆÇÛÉÛ¤µ¤ì¤ë²ÄǽÀ­¤â¤¢¤ë¡£

services ¥Õ¥¡¥¤¥ë¤Î¸«Ëܤò°Ê²¼¤Ë¼¨¤¹¡£






netstat         15/tcp

qotd            17/tcp          quote

msp             18/tcp          # message send protocol

msp             18/udp          # message send protocol

chargen         19/tcp          ttytst source

chargen         19/udp          ttytst source

ftp             21/tcp

# 22 - unassigned

telnet          23/tcp

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/etc/services
¥¤¥ó¥¿¡¼¥Í¥Ã¥È ¥Í¥Ã¥È¥ï¡¼¥¯¥µ¡¼¥Ó¥¹¤Î¥ê¥¹¥È
/usr/include/netdb.h
_PATH_SERVICES ¤ÎÄêµÁ

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getservent(3) ¤Î¥³¡¼¥É¤Î½ñ¤­Êý¤ÎÌäÂê¤Ç¡¢35 ¸Ä¤Þ¤Ç¤·¤«ÊÌ̾¤òÉÕ¤±¤ë¤³¤È¤¬¤Ç¤­¤Ê¤¤¡£

BUFSIZ (¸½ºß¤Ï 1024) ʸ»ú¤è¤êŤ¤¹Ô¤Ï¡¢ getservent(3), getservbyname(3), getservbyport(3) ¤Ë¤è¤ê̵»ë¤µ¤ì¤ë¡£¤µ¤é¤Ë¡¢¤³¤Î¤³¤È¤Ï¼¡¤Î¹Ô¤¬Àµ¤·¤¯²ò¼á¤µ¤ì¤Ê¤¤¸¶°ø¤È¤Ê¤ë¡£

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listen(2), endservent(3), getservbyname(3), getservbyport(3), getservent(3), setservent(3), inetd.conf(5), protocols(5), inetd(8)

¥Ý¡¼¥ÈÈÖ¹æ¤Î³ä¤êÅö¤Æ¤òÄê¤á¤Æ¤¤¤ë RFC (ºÇ¿·ÈÇ¤Ï RFC 1700¡¢ÊÌ̾ STD0002)

Yellow Pages Service / NIS ¤Î¥É¥­¥å¥á¥ó¥È

BIND/Hesiod Service ¤Î¥É¥­¥å¥á¥ó¥È