8 Linux Nslookup Iwu iji dozie nchọpụta DNS
nslookup bụ ngwa nhazi usoro iwu maka nnwale na nchọpụta nsogbu sava DNS (Ngalaba Aha Aha). A na-eji ya jụọ ajụjụ ndekọ ndekọ akụrụngwa DNS (RR) akọwapụtara. Ọtụtụ sistemụ arụmọrụ na-eji nslookup arụnyere arụnyere.
Edemede a gosipụtara iwu nslookup a na-ejikarị eme ihe n'ụzọ zuru ezu. Enwere ike ịme Nslookup n'ụdị abụọ: Interactive na Non-Interactive.
A na-eji ọnọdụ mmekọrịta wee jụọ DNS-Server gbasara ngalaba na ndị ọbịa dị iche iche. A na-eji ụdị adịghị emekọrịta ihe iji jụọ ajụjụ gbasara ozi ngalaba ma ọ bụ onye ọbịa.
Ị nwekwara ike ịmasị akụkọ a:
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# nslookup yahoo.com Server: 4.2.2.2 Address: 4.2.2.2#53 Non-authoritative answer: Name: yahoo.com Address: 72.30.38.140 Name: yahoo.com Address: 98.139.183.24 Name: yahoo.com Address: 209.191.122.70
N'elu iwu ajụjụ ngalaba www.yahoo.com na 4.2.2.2 ọha DNS nkesa na n'okpuru ngalaba na-egosi azịza na-abụghị ikike: ngosi A ndekọ nke www.yahoo.com
# nslookup 209.191.122.70 Server: 4.2.2.2 Address: 4.2.2.2#53 Non-authoritative answer: 70.122.191.209.in-addr.arpa name = ir1.fp.vip.mud.yahoo.com. Authoritative answers can be found from:
# nslookup ir1.fp.vip.mud.yahoo.com. Server: 4.2.2.2 Address: 4.2.2.2#53 Non-authoritative answer: Name: ir1.fp.vip.mud.yahoo.com Address: 209.191.122.70
# nslookup -query=mx www.yahoo.com
Server: 4.2.2.2
Address: 4.2.2.2#53
Non-authoritative answer:
www.yahoo.com canonical name = fd-fp3.wg1.b.yahoo.com.
fd-fp3.wg1.b.yahoo.com canonical name = ds-fp3.wg1.b.yahoo.com.
ds-fp3.wg1.b.yahoo.com canonical name = ds-any-fp3-lfb.wa1.b.yahoo.com.
ds-any-fp3-lfb.wa1.b.yahoo.com canonical name = ds-any-fp3-real.wa1.b.yahoo.com.
Authoritative answers can be found from:
wa1.b.yahoo.com
origin = yf1.yahoo.com
mail addr = hostmaster.yahoo-inc.com
serial = 1344827307
refresh = 30
retry = 30
expire = 86400
minimum = 1800A na-eji ndekọ MX iji map ngalaba aha na ndepụta nke sava mgbanwe ozi maka ngalaba ahụ. Nke mere na ọ na-agwa na akwụkwọ ozi ọ bụla enwetara/ezigara @yahoo.com ga-ebuga na sava ozi.
# nslookup -query=ns www.yahoo.com
Server: 4.2.2.2
Address: 4.2.2.2#53
Non-authoritative answer:
www.yahoo.com canonical name = fd-fp3.wg1.b.yahoo.com.
fd-fp3.wg1.b.yahoo.com canonical name = ds-fp3.wg1.b.yahoo.com.
ds-fp3.wg1.b.yahoo.com canonical name = ds-any-fp3-lfb.wa1.b.yahoo.com.
ds-any-fp3-lfb.wa1.b.yahoo.com canonical name = ds-any-fp3-real.wa1.b.yahoo.com.
Authoritative answers can be found from:
wa1.b.yahoo.com
origin = yf1.yahoo.com
mail addr = hostmaster.yahoo-inc.com
serial = 1344827782
refresh = 30
retry = 30
expire = 86400
minimum = 1800# nslookup -type=soa www.yahoo.com
Server: 4.2.2.2
Address: 4.2.2.2#53
Non-authoritative answer:
www.yahoo.com canonical name = fd-fp3.wg1.b.yahoo.com.
fd-fp3.wg1.b.yahoo.com canonical name = ds-fp3.wg1.b.yahoo.com.
ds-fp3.wg1.b.yahoo.com canonical name = ds-any-fp3-lfb.wa1.b.yahoo.com.
ds-any-fp3-lfb.wa1.b.yahoo.com canonical name = ds-any-fp3-real.wa1.b.yahoo.com.
Authoritative answers can be found from:
wa1.b.yahoo.com
origin = yf1.yahoo.com
mail addr = hostmaster.yahoo-inc.com
serial = 1344827965
refresh = 30
retry = 30
expire = 86400
minimum = 1800# nslookup -query=any yahoo.com
Server: 4.2.2.2
Address: 4.2.2.2#53
Non-authoritative answer:
yahoo.com
origin = ns1.yahoo.com
mail addr = hostmaster.yahoo-inc.com
serial = 2012081016
refresh = 3600
retry = 300
expire = 1814400
minimum = 600
Name: yahoo.com
Address: 98.139.183.24
Name: yahoo.com
Address: 209.191.122.70
Name: yahoo.com
Address: 72.30.38.140
yahoo.com mail exchanger = 1 mta7.am0.yahoodns.net.
yahoo.com mail exchanger = 1 mta5.am0.yahoodns.net.
yahoo.com mail exchanger = 1 mta6.am0.yahoodns.net.
yahoo.com nameserver = ns3.yahoo.com.
yahoo.com nameserver = ns4.yahoo.com.
yahoo.com nameserver = ns2.yahoo.com.
yahoo.com nameserver = ns8.yahoo.com.
yahoo.com nameserver = ns1.yahoo.com.
yahoo.com nameserver = ns6.yahoo.com.
yahoo.com nameserver = ns5.yahoo.com.
Authoritative answers can be found from:Iji mee ka ọnọdụ Debug 'set debug' ga-eweghachi gị ozi verbose dị ka TTL, nke a bụ mmepụta.
# nslookup -debug yahoo.com
> set debug
> yahoo.com
Server: 4.2.2.2
Address: 4.2.2.2#53
------------
QUESTIONS:
yahoo.com, type = A, class = IN
ANSWERS:
-> yahoo.com
internet address = 72.30.38.140
ttl = 1523
-> yahoo.com
internet address = 98.139.183.24
ttl = 1523
-> yahoo.com
internet address = 209.191.122.70
ttl = 1523
AUTHORITY RECORDS:
ADDITIONAL RECORDS:
------------
Non-authoritative answer:
Name: yahoo.com
Address: 72.30.38.140
Name: yahoo.com
Address: 98.139.183.24
Name: yahoo.com
Address: 209.191.122.70N'ime edemede a, anyị nwara ikpuchi iwu nslookup nke nwere ike inyere gị aka ịchọ ozi metụtara ọrụ (DNS) ngalaba Aha.
Edemede na-esote ga-adị na iwu Linux digest nke yiri nslookup. Ọ bụrụ na ị masịrị akụkọ ahụ, biko kesaa ya na ndị enyi gị ma echefula ịnye nzaghachi gị bara uru site na igbe nkọwa.