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Linuxdoc Sgml/NIS_debian-KLDP

<!doctype linuxdoc system>

<article>

<title>NIS Debian HOWTO
<author>Miquels,
<tt><htmlurl url  = "mailto:miquels@cistron.nl"
             name = "miquels@cistron.nl"></tt>
<date>v3.2.1-3, 2 Mar 1998

<trans>À̹ü¼®<tt><htmlurl url  = "mailto:shinsuk@ai-cse.sch.ac.kr"
                          name = "shinsuk@ai-cse.sch.ac.kr"></tt>
<tdate>12 Dec 1998

<abstract>
ÀÌ HOWTO´Â ´ÙÀ½¿¡ ´ëÇØ ¼³¸íÇÕ´Ï´Ù.
</abstract>

<toc>

<sect>Áö¿ª NIS Ŭ¶óÀÌ¾ðÆ®¸¦ ¾î¶»°Ô ¼³Á¤Çϴ°¡

<p>
<enum>
<item>netbase, netstd, nis ÆÐŰÁö¸¦ ¼³Ä¡ÇÕ´Ï´Ù.

<item>¼³Ä¡ °úÁ¤¿¡¼­ NIS domainnameÀ» ¹¯½À´Ï´Ù. À̰ÍÀº NIS¸¦ »ç¿ëÇÒ
½Ã½ºÅÛµéÀÇ ±×·ìÀ» ³ªÅ¸³»´Â À̸§À¸·Î hostname°ú´Â ´Ù¸¨´Ï´Ù.

<item>¸¸¾à NIS ¼­¹ö°¡ Áö¿ª ³×Æ®¿öÅ© ¾È¿¡ ÀÖÁö ¾ÊÀ¸¸é ¸î °¡Áö ¹Ì¼¼Á¶Á¤ÀÌ
ÇÊ¿äÇÕ´Ï´Ù. ypbind ÇÁ·Î¼¼½º´Â /etc/yp.conf ¶ó´Â ¼³Á¤ ÆÄÀÏÀ» °¡Áö°í ÀÖ½À´Ï´Ù.
¿©±â¿¡ NIS ¼­¹öÀÇ À̸§À» Àû½À´Ï´Ù. - ´õ ÀÚ¼¼ÇÑ Á¤º¸´Â ypbind(8) ¸Å´º¾óÀ»
º¸½Ê½Ã¿À.

<item>NIS¸¦ ½ÃÀÛÇÕ´Ï´Ù.

<tscreen><verb>
/etc/init.d/nis stop
/etc/init.d/nis start
</verb></tscreen>

</enum>

<sect>NIS¸¦ ÅëÇØ ÀÚ¿øÀ» ¾î¶»°Ô ÀÌ¿ëÇϴ°¡
<p>
<enum>
<item>FOR libc6

<p>
/etc/nsswitch.conf ÆÄÀÏÀÇ passwd, group, shadow, netgroup ¿£Æ®¸®¸¦ 
´ÙÀ½°ú °°ÀÌ ¹Ù²ß´Ï´Ù.

<tscreen><verb>
passwd:   compat
group:    compat
shadow:   compat

netgroup: nis
</verb></tscreen>

<p>
libc6Àº ÆÄÀϷκÎÅÍ netgroup Á¤º¸¸¦ Àдµ¥ ¸î °¡Áö ¹®Á¦¸¦ °¡Áö°í ÀÖ½À´Ï´Ù.
±×·¯´Ï netgroup ¿£Æ®¸®¿¡ "db"³ª "files"¸¦ ¾²Áö ¸¶½Ê½Ã¿À.
¸ðµç netgroup Á¤º¸´Â NIS ¼­¹ö¸¦ ÅëÇØ ¾ò¾îÁö°Ô µË´Ï´Ù.

<item>USERS: NIS clientsÀÇ /etc/passwd¿¡ ´ÙÀ½ ÁÙÀ» Ãß°¡ÇÕ´Ï´Ù.

<tscreen><verb>
+::::::
</verb></tscreen>

<p>
»ç¿ëÀÚ(user)ÀÇ Æ÷ÇÔ/Â÷´ÜÀ» À§ÇØ +¿Í - ±âÈ£¸¦ »ç¿ëÇÒ ¼ö ÀÖ½À´Ï´Ù.
»ç¿ëÀÚ guest¸¦ Á¦¿ÜÇÏ·Á¸é /etc/passwd ÆÄÀÏ¿¡ -guest¸¦ Ãß°¡ÇÕ´Ï´Ù.
»ç¿ëÀÚ linux°¡ ´Ù¸¥ ½©(e.g. ksg)À» »ç¿ëÇÏ±æ ¿øÇÑ´Ù¸é /etc/passwd¿¡
+linux::::::/bin/ksh¸¦ Ãß°¡ÇØ ÁÖ¸é µË´Ï´Ù. º¯°æÀ» ¿øÇÏÁö ¾Ê´Â Çʵå´Â 
ºóä·Î ³öµÓ´Ï´Ù.

<p>
¿¹·Î, miquels, dth, ed¸¸ ·Î±×ÀÎÀ» Çã¶ôÇÏ°í ´Ù¸¥ »ç¿ëÀÚÀÇ °èÁ¤ Á¤º¸¸¸À»
À¯ÁöÇÏ·Á¸é:

<tscreen><verb>
+miguels::::::
+ed::::::
+dth::::::
+:*::::::/etc/NoShell
</verb></tscreen>

<p>
¿¹¿¡¼­¿Í °°ÀÌ ¸®´ª½º¿¡¼­´Â ÆÐ½º¿öµå Çʵ嵵 overrideÇÒ ¼ö ÀÖ½À´Ï´Ù.

<item>GROUPS: /etc/group¿¡ ´ÙÀ½ ÁÙÀ» Ãß°¡ÇÕ´Ï´Ù.

<tscreen><verb>
+:::
</verb></tscreen>

<item>HOSTS:

<p>
º¸Åë NIS¸¦ ÅëÇØ host lookupÀº ÇÏÁö ¾Ê°í DNS¸¦ »ç¿ëÇÕ´Ï´Ù. ²À NIS¸¦ ÅëÇØ
ÇØ¾ß ÇÑ´Ù¸é ¿©±â¼­ ÇϽʽÿÀ.

	<itemize>
	<item>For libc5 applications:
	<p>
	NIS ¼­¹öÀÇ NIS host ¸ÊÀ» »ç¿ëÇÏ·Á¸é /etc/host.conf¸¦ ¼öÁ¤Çؾß
	ÇÕ´Ï´Ù. ´ÙÀ½°ú °°ÀÌ order ÁÙ¿¡ nis¶ó´Â ´Ü¾î¸¦ Ãß°¡ÇÕ´Ï´Ù:
	<tscreen><verb>
	order hosts,nis
	multi on
	</verb></tscreen>

	<item>For libc6 applications:
	<p>
	/etc/nsswitch.confÀÇ hosts ¿£Æ®¸®¸¦ ¼öÁ¤ÇÕ´Ï´Ù:
	<tscreen><verb>
	hosts: nis files
	</verb></tscreen>

	</itemize>

</enum>

<sect>NIS master ¼­¹ö¸¦ ¾î¶»°Ô ¼³Á¤Çϴ°¡
<p>

<enum>

<item>nis ÆÐŰÁö¸¦ ¼³Ä¡ÇÕ´Ï´Ù. RPC daemonµé(rpc.portmap)À» ¼³Ä¡Çϱâ À§ÇØ
netbase¿Í netstdµµ ¼³Ä¡ÇØ¾ß ÇÕ´Ï´Ù.

<item>master, slave ±¸ºÐ¾øÀÌ NIS ¼­¹ö·Î »ç¿ëµÉ ¸ðµç ½Ã½ºÅÛÀÇ À̸§ÀÌ
/etc/hosts ÆÄÀϳ»¿¡ ÀÖ¾î¾ß ÇÕ´Ï´Ù.
°¢ IP ÁÖ¼Ò µÚ¿¡ ù ¹øÂ° hostnameÀÌ FQDN(Fully Qualified Domain Name)À̾î¾ß
Çϰí, ±×¿¡ À̾î domainnameÀ» Á¦¿ÜÇÑ hostname¸¸À» ±âÀÔÇÕ´Ï´Ù. ¿¹¸¦ µé¸é:

<tscreen><verb>
192.168.88.10	troi.cistron.nl troi
</verb></tscreen>
<p>
NIS´Â DNS¸¦ »ç¿ëÇÏÁö ¾Ê±â ¶§¹®¿¡ NIS server ³»ÀÇ NIS host file(º¸Åë
/etc/hosts)µµ ÀÌ ¼³Á¤À» ÇØ¾ß ÇÕ´Ï´Ù.

<item>/etc/defaultdomain¿¡ NIS domainÀ» ¼³Á¤ÇÕ´Ï´Ù. NIS domainÀº
NIS¸¦ »ç¿ëÇÏ´Â ½Ã½ºÅÛµéÀÇ ±×·ìÀ» ³ªÅ¸³»´Â À̸§À¸·Î hostname°ú´Â ´Ù¸¨´Ï´Ù.
À̰ÍÀº º¸Åë DNS domainnameÀ» À̰Ϳ¡µµ »ç¿ëÇÕ´Ï´Ù.

<p>
À̰ÍÀº ¸¹Àº »ç¶÷µé¿¡ ÀÇÇØ º¸¾È À§ÇèÀ» ÁöÀûµÇ°í ÀÖ½À´Ï´Ù. domainnameÀ» ¾Æ´Â
°Í¸¸À¸·Î ¿ø°ÝÁö¿¡¼­ NIS server¿¡ query¸¦ º¸³»°í NIS ¸ÊµéÀ» ¹ÞÀ» °¡´É¼ºÀÌ ÀÖ±â
¶§¹®ÀÔ´Ï´Ù. À̰ÍÀ» ¸·±âÀ§ÇØ ¸ðÈ£ÇÑ domainnameÀ» ¼±ÅÃÇØ¼­´Â ¾ÈµË´Ï´Ù. ´ÜÁö
Áö¿ª ³×Æ®¿öÅ© À̿ܿ¡¼­ NIS ¼­¹ö¿¡ Á¢±ÙÇÒ ¼ö ¾øµµ·Ï ÇÏ¸é µË´Ï´Ù.

<item>/etc/init.d/nis ÆÄÀÏ ³»ÀÇ ypserv¸¦ master·Î (ypserv=master) ¼³Á¤ÇÕ´Ï´Ù.

<item>À§¿¡¼­ ¸»ÇÑ °Í°ú °°ÀÌ, Áö¿ª ³×Æ®¿öÅ© ¹øÈ£¸¦ /etc/ypserv.securenets¿¡
Ãß°¡ÇÕ´Ï´Ù. ±âº»°ªÀ¸·Î ¸ðµç ½Ã½ºÅÛÀÌ NIS server¿¡ Á¢±ÙÇÒ ¼ö ÀÖµµ·Ï µÇ¾î ÀÖÁö¸¸
ÀÌ·¸°Ô ÇÏÁö ¾Ê´Â °ÍÀ» ±ÇÀåÇÕ´Ï´Ù.
<p>
º¸¾ÈÀÇ °­È­¸¦ À§ÇØ /etc/ypserv.conf ÆÄÀÏÀ» ¼öÁ¤ÇÏ¿© password¸¦ ³ª¿ÀÁö 
¾Êµµ·Ï(mangle)ÇÒ ¼ö ÀÖ½À´Ï´Ù. (³×Æ®¿öÅ© ³»¿¡ µ¥ºñ¾ÈÀÌ ¾Æ´Ñ slave serverµéÀÌ 
ÀÖÀ» ¶§¿¡´Â À̰ÍÀ» »ç¿ëÇØ¼­´Â ¾ÈµË´Ï´Ù.)

<item>"/usr/lib/yp/ypinit -m"À» ÀÔ·ÂÇÏ¿© ¼­¹ö¸¦ ¼³Á¤ÇÕ´Ï´Ù.

<item>´ÙÀ½À» ÀÔ·ÂÇÏ¿© ¼­¹ö¸¦ ½ÃÀÛÇÕ´Ï´Ù.
<tscreen><verb>
/etc/init.d/nis stop
/etc/init.d/nis start
</verb></tscreen>

<p>
¼­¹ö(ypserv)¿Í ÆÐ½º¿öµå µ¥¸ó(yppasswdd)ÀÌ ½ÃÀ۵˴ϴÙ.
<p>
NIS ¼­¹ö¿¡ÀÇ Á¢±ÙÀ» Á¦ÇÑÇϱ⸦ ¿øÇϸé NIS ¼­¹ö¸¦ Ŭ¶óÀÌ¾ðÆ®¿Í
¸¶Âù°¡Áö·Î ypbind¸¦ ½ÇÇàÇϰí /etc/passwd ÆÄÀÏÀÇ Áß°£¿¡ plus-entries¸¦ 
Ãß°¡ÇÏ¿© ¼³Á¤ÇÕ´Ï´Ù. ¶óÀ̺귯¸® ÇÔ¼ö´Â ù ¹øÂ° NIS entry ÈÄÀÇ ¸ðµç normal
entries¸¦ ¹«½ÃÇϰí, ³ª¸ÓÁö¸¦ NIS¸¦ ÅëÇØ ¾ò°Ô µË´Ï´Ù. ÀÌ ¹æ¹ýÀº NIS¿¡ÀÇ
Á¢±Ù ±ÔÄ¢À» °ü¸®ÇÏ´Â ¹æ¹ýÀÔ´Ï´Ù.
<p>
¿¹:
<tscreen><verb>
	root:x:0:0:root:/root:/bin/bash
	daemon:*:1:1:daemon:/usr/sbin:
	bin:*:2:2:bin:/bin:
	sys:*:3:3:sys:/dev:
	sync:*:4:100:sync:/bin:/bin/sync
	games:*:5:100:games:/usr/games:
	man:*:6:100:man:/var/catman:
	lp:*:7:7:lp:/var/spool/lpd:
	mail:*:8:8:mail:/var/spool/mail:
	news:*:9:9:news:/var/spool/news:
	uucp:*:10:50:uucp:/var/spool/uucp:
	nobody:*:65534:65534:noone at all,,,,:/dev/null:
	+miquels::::::
	+:*:::::/etc/NoShell
	[ All normal users AFTER this line! ]
	tester:*:299:10: Just a test account:/tmp:
	miquels:1234567890123:101:10:Miquel van Smooreburg:/home/miquels:/bin/zsh
</verb></tscreen>

<p>
»ç¿ëÀÚ tester´Â Á¸ÀçÇÏÁö¸¸, ½©ÀÌ /etc/NoShell·Î ÁöÁ¤µÇ¾î ÀÖ°í, miguels´Â
º¸Åë Á¢±ÙÀ» °®°Ô µË´Ï´Ù.
<p>
´Ù¸¥ ¹æ¹ýÀ¸·Î, /var/yp/MakefileÀ» ¼öÁ¤Çϰí NIS°¡ ´Ù¸¥ ÆÐ½º¿öµå ÆÄÀÏÀ»
»ç¿ëÇϵµ·Ï ¼³Á¤ÇÒ ¼ö ÀÖ½À´Ï´Ù. Å« ½Ã½ºÅÛ¿¡¼­´Â, NIS ÆÐ½º¿öµå¿Í ±×·ìÆÄÀÏÀ»
ÀϹÝÀûÀ¸·Î /var/yp/ypfiles/¿¡ ÀúÀåÇÕ´Ï´Ù. À̰ÍÀ» »ç¿ëÇÒ °æ¿ì¿£ ÆÐ½º¿öµå 
ÆÄÀÏÀ» °ü¸®ÇÏ´Â "passwd", "chfn", "adduser"µîÀÇ ÀÏ¹Ý °ü¸® µµ±¸¸¦ ´õÀÌ»ó
»ç¿ëÇÒ ¼ö ¾ø°Ô µÇ¾î Ưº°ÇÑ µµ±¸¸¦ Á÷Á¢ ¸¸µé¾î »ç¿ëÇØ¾ß ÇÕ´Ï´Ù.
<p>
±×·¯³ª yppasswd, ypchsh, ypchfnÀº yppasswdd¸¦ -D ¿É¼ÇÀ¸·Î NIS ÆÐ½º¿öµå¿Í
½¦µµ¿ìÀÇ À§Ä¡¸¦ ÁöÁ¤ÇÏ¸é »ç¿ëÇÒ ¼ö ÀÖ½À´Ï´Ù. ÀÌ À¯Æ¿¸®Æ¼µé°ú yppasswdd µ¥¸óÀÇ 
µ¥ºñ¾È ¹öÀüÀº ºñÇ¥ÁØ È®ÀåÀ» °¡Áö°í ÀÖ½À´Ï´Ù. "Root"´Â root ÆÐ½º¿öµå¸¦ »ç¿ëÇÏ¿©
´Ù¸¥ »ç¶÷µéÀÇ ÆÐ½º¿öµå, finger Á¤º¸¿Í ½©À» º¯°æÇÒ ¼ö ÀÖ½À´Ï´Ù.
<p>
NIS ÆÐ½º¿öµå ÆÄÀÏÀ» Á÷Á¢ ¼öÁ¤Çϰųª Ç¥ÁØ /etc/passwd ÆÄÀÏÀ» »ç¿ëÇÑ´Ù¸é,
NIS ¼Ò½º ÆÄÀÏÀÌ ÀÌ ÁßÀÇ Çϳª¶óµµ º¯°æµÈ ÈÄ /var/yp µð·ºÅ丮¿¡¼­ make¸¦
½ÇÇà½ÃÄÑ NIS ¸ÊÀ» °»½ÅÇØ¾ß ÇÏ´Â °ÍÀ» ±â¾ïÇϽʽÿÀ. À̰ÍÀº cronÀ¸·Î ¹ã¿¡
¼öÇà½ÃÄÑ ÃÖ½ÅÀÇ NIS ¸ÊÀ» À¯ÁöÇϵµ·Ï ÇÏ´Â °ÍÀÌ Àû´çÇÕ´Ï´Ù.
</enum>

<sect>SHADOW PASSWORDS
<p>
¸®´ª½º libc5´Â ½¦µµ¿ì NIS ¸ÊÀ» Áö¿øÇÏÁö ¾Ê½À´Ï´Ù. libc5¿¡ Á¾¼ÓÀûÀÎ ÀÀ¿ë
ÇÁ·Î±×·¥À» »ç¿ëÇÒ °æ¿ì¿£ ½¦µµ¿ì NIS ¸ÊÀ» »ç¿ëÇØ¼­´Â ¾ÈµË´Ï´Ù. ´ë½Å ´ÙÀ½ÀÇ 
¹æ¹ýµéÀ» »ç¿ëÇÒ ¼ö ÀÖ½À´Ï´Ù.

<enum>
<item>SHADOW-LIKE SECURITY
NIS°¡ ÆÐ½º¿öµå¸¦ ã´Â °ÍÀ» "mangling"ÇÏ¿© ½¦µµ¿ì¿Í ºñ½ÁÇÑ º¸¾ÈÀ» Á¦°øÇÒ ¼ö 
ÀÖ½À´Ï´Ù. "ypserv.conf" ¸ÇÆäÀÌÁö¿Í /etc/ypserv.confÀÇ ÁÖ¼®À» Àо½Ê½Ã¿À.

<item>REAL SHADOW SUPPORT
libc6Àº NIS ³»¿¡ ½¦µµ¿ì Áö¿øÀÌ Æ÷ÇԵǾî ÀÖ½À´Ï´Ù. À̰ÍÀº ´ç½ÅÀÌ ¿øÇÏ´Â °Í°ú
°°ÀÌ µ¿ÀÛÇÒ °ÍÀÔ´Ï´Ù; NIS ¼­¹ö·ÎºÎÅÍ ½¦µµ¿ì¸¦ ¹Þ¾Æ »ç¿ëÇϱ⸸ ÇÏ¸é µË´Ï´Ù.
½¦µµ¿ì ¸ÊÀº makedbm¿¡ ¿É¼Ç "-s"(secure)¸¦ ÁÖ¸é ¸¸µé¾î Áý´Ï´Ù. À̰ÍÀº ÇöÀçÀÇ
¸ðµç /var/yp/Makefile³»¿¡¼­ ÀÚµ¿À¸·Î ¼öÇàµË´Ï´Ù.
<p>
ÁÖ)½¦µµ¿ì ÆÐ½º¿öµå¸¦ »ç¿ëÇϰí ÀÖ´Ù¸é 2.2¿Í °°Àº "plus" entries¸¦ /etc/passwd
¿Í /etc/shadow ¸ðµÎ¿¡ Ãß°¡½Ãų Çʿ䰡 ÀÖ½À´Ï´Ù. ¿Ã¹Ù¸¥ ÇüÅ·ΠÃß°¡ÇϽʽÿÀ;
passwd¿Í shadowÆÄÀÏÀº ´Ù¸¥ ÇʵåµéÀ» °¡Áö°í ÀÖ½À´Ï´Ù.
</enum>

<sect>HOW TO SETUP A NIS SLAVE SERVER
<p>

<enum>

<item>¸ÕÀú, ½Ã½ºÅÛÀ» NIS Ŭ¶óÀÌ¾ðÆ®·Î ¼³Á¤ÇϽʽÿÀ(1À» º¸½Ê½Ã¿À).

<item>À̾ À§¿¡ ¼³¸íÇѵ¥·Î 3.1ºÎÅÍ 3.5±îÁö ¼³Á¤ÇϵÇ, 3.4¿¡¼­
/etc/init.d/nis ÆÄÀϳ»ÀÇ ypserv¸¦ slave(ypserv=slave)·Î ¼³Á¤ÇϽʽÿÀ.

<item>µ¥¸óÀ» ½ÇÇàÇϰí ÃʱâÈ­ÇϽʽÿÀ.
<tscreen><verb>
/etc/init.d/nis stop
/etc/init.d/nis start
/usr/lib/yp/ypinit -s <ÁÖ NIS ¼­¹ö À̸§>
</verb></tscreen>

<item>ÀÌÁ¦ ÁÖ NIS ¼­¹ö¿¡ Á¾ NIS ¼­¹ö Áö¿øÀ» ¼³Á¤ÇÕ´Ï´Ù. ¸ÕÀú ÁÖ NIS
¼­¹ö¿¡ ÀÖ´Â NIS MakefileÀ» Á¶Á¤ÇÏ¿© ¾ÕÀ¸·ÎÀÇ ¸ðµç °»½ÅµÈ Á¤º¸¸¦ ÀÚµ¿À¸·Î
Á¾ NIS ¼­¹ö¿¡ Àü´ÞÇϵµ·Ï ÇÕ´Ï´Ù.
/var/yp/Makefile³»ÀÇ NOPUSH º¯¼ö¸¦ ´ÙÀ½°ú °°ÀÌ ¼³Á¤ÇϽʽÿÀ.
<tscreen><verb>
NOPUSH="false"
</verb></tscreen>
<p>
ÀÌÁ¦ ÁÖ ¼­¹ö´Â "/usr/lib/yp/ypinit -m" ¸í·É ½ÇÇàÀ¸·Î Á¾ ¼­¹öµéÀÇ
Á¤º¸¸¦ Àü´ÞÇÕ´Ï´Ù. Á¾ ¼­¹öµéÀÇ À̸§À» ÀÔ·ÂÇϽʽÿÀ. ¸ÊÀ» ´Ù½Ã ¸¸µé¾î Á¾ 
¼­¹ö·Î ÀڷḦ Àü´ÞÇÕ´Ï´Ù.

<item>Á¾ ¼­¹öÀÇ ·çÆ® crontab¿¡ ´ÙÀ½À» Ãß°¡ÇÕ´Ï´Ù. (crontab -e)
<tscreen><verb>
20 *     * * * /usr/lib/yp/ypxfr_1perhour
40 5     * * * /usr/lib/yp/ypxfr_1perday
55 6, 18 * * * /usr/lib/yp/ypxfr_2perday
</verb></tscreen>

<p>À̰ÍÀº ¸ðµç NIS ¸ÊµéÀÌ ÃֽŠÁ¤º¸·Î °»½ÅµÇµµ·Ï Çϸç, Á¤º¸ °»½Å½Ã Á¾ ¼­¹öÀÇ
´Ù¿îÀ¸·Î ºüÁø Á¤º¸µµ °»½ÅµË´Ï´Ù.
</enum>
</article>


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