NSSWITCH.CONF

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NYS ¤ò¥µ¥Ý¡¼¥È¤·¤¿ Linux libc5 ¤ä GNU C Linrary 2.x (libc.so.6) ¤Ç¤Ï¡¢ ¤³¤ÎÌäÂê¤Ï¤è¤ê¸«Ä̤·Îɤ¯²ò·è¤Ç¤­¤ë¤è¤¦¤Ë¤Ê¤Ã¤Æ¤¤¤ë¡£¤³¤ì¤é¤Ï Sun Microsystems ¤¬ Solaris 2 ¤Î C ¥é¥¤¥Ö¥é¥ê¤ÇÍѤ¤¤¿ÊýË¡¤Ë¤Ê¤é¤Ã¤Æ¤¤¤ë¡£ °Ê²¼¤Ç¤Ï¤³¤Î»ÅÁȤߤò "Name Service Switch" (NSS) ¤È¸Æ¤Ö¡£¥Ç¡¼¥¿¥Ù¡¼¥¹ ¤Î¾ðÊ󸻤ȡ¢¤½¤ì¤é¤ò±ÜÍ÷¤¹¤ë½ç½ø¤ò»ØÄꤷ¤¿¤Î¤¬ /etc/nsswitch.conf ¥Õ¥¡¥¤¥ë¤Ç¤¢¤ë¡£

NSS ¤Ç¤Ï°Ê²¼¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹¤ò°·¤¦¤³¤È¤¬¤Ç¤­¤ë¡£

aliases

sendmail(8) ¤ÇÍѤ¤¤é¤ì¤ë¥á¡¼¥ë¥¨¥¤¥ê¥¢¥¹¡£ ¸½ºß¤Ï̵»ë¤µ¤ì¤ë¡£

ethers

¥¤¡¼¥µ¡¼¥Í¥Ã¥ÈÈֹ档

group

¥æ¡¼¥¶¡¼¤Î¥°¥ë¡¼¥×¡£ getgrent(3) ´Ø¿ô¤Ë¤è¤Ã¤ÆÍѤ¤¤é¤ì¤ë¡£

hosts

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netgroup

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network

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passwd

¥æ¡¼¥¶¡¼¥Ñ¥¹¥ï¡¼¥É¡£ getpwent(3) ´Ø¿ô¤Ë¤è¤Ã¤ÆÍѤ¤¤é¤ì¤ë¡£

protocols

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publickey

NIS+ ¤È NFS ¤Ë¤è¤Ã¤ÆÍѤ¤¤é¤ì¤ë secure_rpc ¤Î¸ø³«¸°¤ÈÈëÌ©¸°¡£

rpc

¥ê¥â¡¼¥È¥×¥í¥·¥¸¥ã¡¼¥³¡¼¥ë (remote procedure call) ¤Î̾Á°¤ÈÈֹ档 getrpcbyname(3) ¤Ê¤É¤Î´Ø¿ô¤Ë¤è¤Ã¤ÆÍѤ¤¤é¤ì¤ë¡£

services

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shadow

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passwd:

compat

group:

compat

shadow:

compat

hosts:

dns [!UNAVAIL=return] files

networks:

nis [NOTFOUND=return] files

ethers:

nis [NOTFOUND=return] files

protocols:

nis [NOTFOUND=return] files

rpc:

nis [NOTFOUND=return] files

services:

nis [NOTFOUND=return] files

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* ¥µ¡¼¥Ó¥¹¤Î»ØÄê¡£ `files', `db', `nis' ¤Ê¤É¡£

* ±ÜÍ÷·ë²Ì¤ËÂФ¹¤ë¥ê¥¢¥¯¥·¥ç¥ó¡£ `[NOTFOUND=return]' ¤Ê¤É¡£

NYS µ¡Ç½¤òÁȤ߹þ¤ó¤À libc5 ¤Ç¤Ï¡¢»ØÄê¤Ç¤­¤ë¥µ¡¼¥Ó¥¹¤Ï `files'¡¢ `nis'¡¢ `nisplus' ¤Î¤¤¤º¤ì¤«¤Ç¤¢¤ë¡£ hosts ¤ËÂФ·¤Æ¤Ï `dns' ¤â»ØÄê¤Ç¤­¤ë¡£¤Þ¤¿ passwd ¤È group ¤ËÂФ·¤Æ¤Ï `compat' ¤â»ØÄê¤Ç¤­¤ë¡£ shadow ¤Ë¤Ï `compat' ¤Î»ØÄê¤Ï¤Ç¤­¤Ê¤¤¡£

glibc ¤Ç¤Ï¡¢ÍøÍѤ·¤è¤¦¤È¤¹¤ë¥µ¡¼¥Ó¥¹ SERVICE ¤½¤ì¤¾¤ì¤ËÂФ· ¤Æ /lib/libnss_SERVICE.so.X ¤È¤¤¤¦¥Õ¥¡¥¤¥ë¤¬É¬Íפˤʤ롣ɸ½àŪ¤Ê¥¤¥ó¥¹¥È¡¼¥ë¤Ç¤Ï `files'¡¢ `db'¡¢ `nis'¡¢ `nisplus' ¤¬ÍøÍѤǤ­¤ë¤è¤¦¤Ë¤Ê¤Ã¤Æ¤¤¤ë¤³¤È¤¬Â¿¤¤¡£ hosts ¤ËÂÐ ¤·¤Æ¤Ï `dns' ¤â»ØÄê¤Ç¤­¡¢ passwd¡¢ group¡¢ shadow ¤ËÂФ·¤Æ¤Ï `compat' ¤â»ØÄê¤Ç¤­¤ë¡£ ¤³¤ì¤é¤Î¥µ¡¼¥Ó¥¹¤Ï libc5+NYS ¤Î´Ä¶­¤Ç¤ÏÍøÍѤǤ­¤Ê¤¤¡£ ¥Ð¡¼¥¸¥ç¥óÈÖ¹æ X ¤Ï¡¢ glibc 2.0 ÍѤʤé 1¡¢ glibc 2.1 ÍѤʤé 2 ¤Ç¤¢¤ë¡£

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STATUS => success | notfound | unavail | tryagain

ACTION => return | continue

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success

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notfound

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unavail

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tryagain

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/etc/nsswitch.conf ÀßÄê¥Õ¥¡¥¤¥ë¡£

/lib/libnss_compat.so.X

glibc2 ¤ËÂФ·¤Æ `compat' ¥½¡¼¥¹¤ò¼ÂÁõ¤·¤¿¤â¤Î¡£

/lib/libnss_db.so.X

glibc2 ¤ËÂФ·¤Æ `db' ¥½¡¼¥¹¤ò¼ÂÁõ¤·¤¿¤â¤Î¡£

/lib/libnss_dns.so.X

glibc2 ¤ËÂФ·¤Æ `dns' ¥½¡¼¥¹¤ò¼ÂÁõ¤·¤¿¤â¤Î¡£

/lib/libnss_files.so.X

glibc2 ¤ËÂФ·¤Æ `files' ¥½¡¼¥¹¤ò¼ÂÁõ¤·¤¿¤â¤Î¡£

/lib/libnss_hesoid.so.X

glibc2 ¤ËÂФ·¤Æ `hesoid' ¥½¡¼¥¹¤ò¼ÂÁõ¤·¤¿¤â¤Î¡£

/lib/libnss_nis.so.X

glibc2 ¤ËÂФ·¤Æ `nis' ¥½¡¼¥¹¤ò¼ÂÁõ¤·¤¿¤â¤Î¡£

/lib/libnss_nisplus.so.X

glibc2 ¤ËÂФ·¤Æ `nisplus' ¥½¡¼¥¹¤ò¼ÂÁõ¤·¤¿¤â¤Î¡£

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Solaris ¤Ç¤Ï NSS ¥µ¡¼¥Ó¥¹¤òÍѤ¤¤¿¥×¥í¥°¥é¥à¤ò¥¹¥¿¥Æ¥£¥Ã¥¯¤Ë¥ê¥ó¥¯¤¹¤ë ¤³¤È¤Ï¤Ç¤­¤Ê¤¤¡£ Linux ¤Ç¤ÏÌäÂê¤Ê¤¯¥¹¥¿¥Æ¥£¥Ã¥¯¥ê¥ó¥¯¤Ç¤­¤ë¡£

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