Linux Certif

Toute la documentation sur la certification Linux LPI

nsupdate

BSD mandoc
BSD 4

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nsupdate - ÂÐÏÃŪ¤Ë Internet ¥Í¡¼¥à¥µ¡¼¥Ð¤ò¹¹¿·¤¹¤ë

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nsupdate [-k keydir:keyname ] [-d ] [-v ] [filename ]

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-k

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-d

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-v

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nsupdate ¤Ï 1 ¹Ô¤´¤È¤Ë 1 ¸Ä¤ÎÆþÎϥ쥳¡¼¥É¤òÆɤߤޤ¹¡£ ¤½¤ì¤¾¤ì¤Î¹Ô¤Ï¹¹¿·Í×µá¤ÎÂоݤˤʤë¥ê¥½¡¼¥¹¥ì¥³¡¼¥É¤Ç¤¹¡£ 1 ¸Ä¤Î¹¹¿·Í×µá¤Ë´Þ¤Þ¤ì¤ë¤¹¤Ù¤Æ¤Î¥É¥á¥¤¥ó̾¤Ï¡¢ Ʊ°ì¤Î DNS ¥¾¡¼¥ó¤Ë´Þ¤Þ¤ì¤ë¤â¤Î¤Ç¤¢¤ë¤³¤È¤¬É¬ÍפǤ¹¡£ ¹¹¿·¤Ï¡¢SOA MNAME ¥Õ¥£¡¼¥ë¥É¤ÇÄêµÁ¤µ¤ì¤ë¥Þ¥¹¥¿¥µ¡¼¥Ð¤ØÁ÷¤é¤ì¤Þ¤¹¡£ ¶õ¹Ô¤Ï¡¢ÃßÀѤµ¤ì¤¿¥ì¥³¡¼¥É¤ò 1 ¸Ä¤Î¹¹¿·Í×µá¤È¤·¤Æ¤Þ¤È¤á¡¢¥¾¡¼¥ó¤Î¸¢°Ò¤ò ¤â¤Ä¥Í¡¼¥à¥µ¡¼¥Ð¤Ø¤ÎÁ÷¿®¤ò»Ø¼¨¤·¤Þ¤¹¡£ Äɲå쥳¡¼¥É¤ò³¤±¤ë¤³¤È¤¬²Äǽ¤Ç¤¹¡£ ¤³¤ì¤é¤Ï¡¢ÄɲÃŪ¤Ê¡¢´°Á´¤ËÆÈΩ¤·¤¿¹¹¿·Í×µá¤Ë¤Ê¤ê¤Þ¤¹¡£ ºÇ¸å¤ÎÍ׵᤬Á÷¿®¤µ¤ì¤ë¤¿¤á¤Ë¤Ï¡¢¶õ¹Ô¤¬ÆþÎϤκǸå¤Ë¤¢¤ë¤³¤È¤¬É¬ÍפǤ¹¡£

¥ì¥³¡¼¥É¤Ï¤Õ¤¿¤Ä¤Î°ìÈÌŪ¤Ê·Á¼°¤Î¤¦¤Á¤Î¤É¤Á¤é¤«¤Î·Á¼°¤Ç¤¹¡£ ɬÍ×¾ò·ï (prerequisite) ¥ì¥³¡¼¥É¤Ï¡¢Í׵᤬½èÍý¤µ¤ì¤ëÁ°¤ËËþ¤¿¤µ¤ì¤Æ¤¤¤ë¤³¤È¤¬É¬Íפʾò·ï¤ò»Ø¼¨¤·¤Þ¤¹¡£ ¹¹¿·¾ðÊó (update) ¥ì¥³¡¼¥É¤Ï¡¢DNS ¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ë¤Ê¤µ¤ì¤ëÊѹ¹¤ò»Ø¼¨¤·¤Þ¤¹¡£ ¹¹¿·Í×µá¤Ï¡¢0 ¸Ä°Ê¾å¤ÎɬÍ×¾ò·ï¤È¡¢1 ¸Ä°Ê¾å¤Î¹¹¿·¾ðÊ󤫤éÀ®¤ê¤Þ¤¹¡£ ¤½¤ì¤¾¤ì¤Î¹¹¿·Í×µá¤Ï¡¢¤¹¤Ù¤Æ¤ÎɬÍ×¾ò·ï¤¬Ëþ¤¿¤µ¤ì¤ë¤³¤È¤¬³Îǧ ¤µ¤ì¤¿¤¢¤È¤Ç¡¢¤¹¤Ù¤Æ¤Î¹¹¿·¤¬¼Â¹Ô¤µ¤ì¤ë¤È¤¤¤¦½çÈ֤ǡ¢¸¶»ÒŪ¤Ë½èÍý¤µ¤ì¤Þ¤¹¡£

nsupdate ¤Ï¼¡¤Î¤è¤¦¤ÊÆþÎϥ쥳¡¼¥É¤Î½ñ¼°¤òÍý²ò¤·¤Þ¤¹¡£

prereq nxdomain domain-name

domain-name ¤Ç»ØÄꤷ¤¿¥É¥á¥¤¥óÆâ¤Ë¡¢¤É¤Î¤è¤¦¤Ê RR ¤â¤Ê¤¤¤³¤È¤òÍ׵ᤷ¤Þ¤¹¡£

prereq yxdomain domain-name

domain-name ¤Ç»ØÄꤷ¤¿¥É¥á¥¤¥óÆâ¤Ë¡¢ºÇÄã 1 ¸Ä¤Î RR ¤¬Â¸ºß¤¹¤ë¤³¤È¤òÍ׵ᤷ¤Þ¤¹¡£

prereq nxrrset domain-name [class] type

domain-name ¤Ç»ØÄꤷ¤¿¥É¥á¥¤¥óÆâ¤Ë type ¤Ç»ØÄꤷ¤¿·¿¤Î RR ¤¬Â¸ºß¤·¤Ê¤¤¤³¤È¤òÍ׵ᤷ¤Þ¤¹¡£

prereq yxrrset domain-name [class] type [data...]

domain-name ¤Ç»ØÄꤷ¤¿¥É¥á¥¤¥óÆâ¤Ë¡¢ type ¤Ç»ØÄꤷ¤¿·¿¤Î RR ¤¬Â¸ºß¤¹¤ë¤³¤È¤òÍ׵ᤷ¤Þ¤¹¡£ data ¤¬»ØÄꤵ¤ì¤¿¾ì¹ç¤Ï¡¢Àµ³Î¤Ë¥Á¥§¥Ã¥¯¤¬¹Ô¤Ê¤ï¤ì¤Þ¤¹¡£

update delete domain-name [class] [type [data...] ]

domain-name ¤Ç»ØÄꤷ¤¿¥É¥á¥¤¥ó̾¤Î RR ¤òºï½ü¤·¤Þ¤¹¡£ ¤â¤· type (¤È¡¢²Äǽ¤Ê¤é¤Ð data ¤¬»ØÄꤵ¤ì¤ì¤Ð¡¢³ºÅö¤µ¤ì¤ë¥ì¥³¡¼¥É¤À¤±¤¬ºï½ü¤µ¤ì¤Þ¤¹¡£

update add domain-name ttl [class] type data...

ttl , type , data ¤Ç»ØÄꤷ¤¿ RR ¤òÄɲä·¤Þ¤¹¡£

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²¼µ­¤ÎÎã¤Ï¡¢ nsupdate ¤ÎÂÐÏÃŪ¤Ê»ÈÍÑÎã¤ò¼¨¤·¤Æ¤¤¤Þ¤¹¡£ ¤¢¤ë¥É¥á¥¤¥ó̾¤Î¤¹¤Ù¤Æ¤Î A ¥ì¥³¡¼¥É¤òºï½ü¤·¤Æ¡¢¿·¤·¤¤¥ì¥³¡¼¥É¤ò Äɲ乤뤳¤È¤Ë¤è¤Ã¤Æ¡¢IP ¥¢¥É¥ì¥¹¤òÊѹ¹¤·¤Þ¤¹¡£ ¤³¤³¤Ç¤ÏɬÍ×¾ò·ï¤¬»ØÄꤵ¤ì¤Æ¤¤¤Ê¤¤¤Î¤Ç¡¢ºï½ü¤¹¤ë¥ì¥³¡¼¥É¤¬¤Ê¤¯¤Æ¤â¿·¤·¤¤ ¥ì¥³¡¼¥É¤¬Äɲ䵤ì¤Þ¤¹¡£ ¸å¤Ë³¤¯¶õ¹Ô¤ÏÍ×µá¤ò½èÍý¤µ¤»¤ë¤¿¤á¤ËɬÍפǤ¢¤ë¤³¤È¤ËÃí°Õ¤·¤Æ¤¯¤À¤µ¤¤¡£

$ nsupdate

> update delete test.example.com A

> update add test.example.com 3600 A 10.1.1.1

>

¤³¤ÎÎã¤Ç¤Ï¡¢ÂоݤΥɥᥤ¥ó¤Ë A ¥ì¥³¡¼¥É¤Þ¤¿¤Ï CNAME ¥ì¥³¡¼¥É¤¬¤Ê¤¤¾ì¹ç¤Ë¡¢

CNAME ¥¨¥¤¥ê¥¢¥¹¤¬¥Ç¡¼¥¿¥Ù¡¼¥¹¤ËÄɲ䵤ì¤Þ¤¹¡£

$ nsupdate

> prereq nxrrset www.example.com A

> prereq nxrrset www.example.com CNAME

> update add www.example.com 3600 CNAME test.example.com

>

¤³¤ÎÎã¤Ç¤Ï¡¢nsupdate ¤Ï¥Ç¥£¥ì¥¯¥È¥ê "/var/named/keys" ¤Ë¸ºß¤¹¤ë¥­¡¼ "mykey" ¤Ç½ð̾¤µ¤ì¤Þ¤¹¡£

$ nsupdate -k /var/named/keys:mykey

> update add ftp.example.com 60 A 192.168.5.1

>

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Qq send error

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Qq failed update packet

°ìÈ̤ˡ¢¥Í¡¼¥à¥µ¡¼¥Ð¤¬Æ°Åª¹¹¿·¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤Ê¤¤¤¿¤á¤«¡¢Ç§¾Ú¤Î¼ºÇԤΤ¿¤á¤Ë¡¢ ¹¹¿·¤òµñÈݤ·¤¿¤³¤È¤ò¼¨¤·¤Þ¤¹¡£

Qq res_mkupdate: packet size = size

(¤Þ¤¿Â¾¤Î¥á¥Ã¥»¡¼¥¸¤¬É½¼¨¤µ¤ì¤Ê¤¤¤È¤­) ¹¹¿·¤ÏÀµ¾ï¤Ë¼õ¿®¤µ¤ì¤Æ¥Í¡¼¥à¥µ¡¼¥Ð¤Ëǧ¾Ú¤µ¤ì¤Þ¤·¤¿¡£ ¤·¤«¤·É¬Í×¾ò·ï¤¬¹¹¿·¤ò˸¤²¤¿¤«¤â¤·¤ì¤Þ¤»¤ó¡£¹¹¿·¤¬¹Ô¤Ê¤ï¤ì¤Æ¤¤¤ë¤« ¤ò³Î¤«¤á¤ëÊýË¡¤Ï¡¢¥Ç¥Ð¥Ã¥°¥â¡¼¥É -( d ¤ò»ÈÍѤ·¤Æ¡¢¥Í¡¼¥à¥µ¡¼¥Ð¤«¤é¤Î±þÅú¥Õ¥£¡¼¥ë¥É¤ò³Îǧ¤¹¤ë¤·¤«¤¢¤ê¤Þ¤»¤ó¡£

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/etc/resolv.conf

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named(8), resolver(3), resolver(5); RFC-1034, ``Domain Names - Concepts and Facilities'' RFC-1035, ``Domain Names - Implementation and Specification'' RFC-2136, Dynamic Updates in the Domain Name System.

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Brent Baccala