DNSテストツール
一、digコマンド
dig-dnsシステムをテストするため、hostsファイルをクエリーして解析する.# : dig [@dns_server] [-t rr_type] name [query option]
順方向解析テスト:# : dig -t A FQDN [@dns_server]
# :
[root@leistudy named]# dig -t A www.leistudy.com @192.168.123.100
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> -t A www.leistudy.com @192.168.123.100
;; global options: +cmd
;; Got answer:
;; ->>HEADER<
query option: # query option
# +[no]trace:
# +[no]recurse:
# :
[root@leistudy named]# dig -t A www.baidu.com +trace
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> -t A www.baidu.com +trace
;; global options: +cmd
. 5 IN NS l.root-servers.net.
. 5 IN NS i.root-servers.net.
. 5 IN NS e.root-servers.net.
. 5 IN NS j.root-servers.net.
. 5 IN NS b.root-servers.net.
. 5 IN NS c.root-servers.net.
. 5 IN NS a.root-servers.net.
. 5 IN NS f.root-servers.net.
. 5 IN NS d.root-servers.net.
. 5 IN NS k.root-servers.net.
. 5 IN NS h.root-servers.net.
. 5 IN NS g.root-servers.net.
. 5 IN NS m.root-servers.net.
;; Received 239 bytes from 192.168.123.2#53(192.168.123.2) in 836 ms
com. 172800 IN NS a.gtld-servers.net.
com. 172800 IN NS b.gtld-servers.net.
... # ,
a.shifen.com. 1200 IN NS ns1.a.shifen.com.
a.shifen.com. 1200 IN NS ns4.a.shifen.com.
;; Received 239 bytes from 202.108.22.220#53(dns.baidu.com) in 59 ms
逆解析テスト:# : dig -x IP [@dns_server] dig -t PTR IP [@dns_server]
# :
[root@leistudy named]# dig -x 61.135.169.121 @119.29.29.29
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> -x 61.135.169.121 @119.29.29.29
;; global options: +cmd
;; Got answer:
;; ->>HEADER<
アナログゾーン転送:# : dig -t axfr ZONE_NAME @dns_server
# :
[root@docker-package ~]# dig -t axfr leistudy.com @192.168.123.132
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> -t axfr leistudy.com @192.168.123.132
;; global options: +cmd
leistudy.com. 86400 IN SOA ns1.leistudy.com. admin.leistudy.com.leistudy.com. 2018030101 3600 300 604800 86400
leistudy.com. 86400 IN NS ns1.leistudy.com.
leistudy.com. 86400 IN NS ns2.leistudy.com.
leistudy.com. 86400 IN MX 10 mx1.leistudy.com.
leistudy.com. 86400 IN MX 20 mx2.leistudy.com.
ftp.leistudy.com. 86400 IN CNAME www.leistudy.com.
mx1.leistudy.com. 86400 IN A 192.168.123.132
mx2.leistudy.com. 86400 IN A 192.168.123.101
ns1.leistudy.com. 86400 IN A 192.168.123.132
ns2.leistudy.com. 86400 IN A 192.168.123.101
www.leistudy.com. 86400 IN A 192.168.123.132
leistudy.com. 86400 IN SOA ns1.leistudy.com. admin.leistudy.com.leistudy.com. 2018030101 3600 300 604800 86400
;; Query time: 3 msec
;; SERVER: 192.168.123.132#53(192.168.123.132)
;; WHEN: Sat Mar 03 10:12:28 CST 2018
;; XFR size: 12 records (messages 1, bytes 299)
# :
[root@docker-package ~]# dig -t axfr 123.168.192.in-addr.arpa @192.168.123.132
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> -t axfr 123.168.192.in-addr.arpa @192.168.123.132
;; global options: +cmd
123.168.192.in-addr.arpa. 86400 IN SOA ns1.leistudy.com. admin.leistudy.com. 2018030101 3600 300 604800 86400
123.168.192.in-addr.arpa. 86400 IN NS ns1.leistudy.com.
123.168.192.in-addr.arpa. 86400 IN NS ns2.leistudy.com.
101.123.168.192.in-addr.arpa. 86400 IN PTR mx2.leistudy.com.
132.123.168.192.in-addr.arpa. 86400 IN PTR ns1.leistudy.com.
132.123.168.192.in-addr.arpa. 86400 IN PTR mx1.leistudy.com.
132.123.168.192.in-addr.arpa. 86400 IN PTR www.leistudy.com.
123.168.192.in-addr.arpa. 86400 IN SOA ns1.leistudy.com. admin.leistudy.com. 2018030101 3600 300 604800 86400
;; Query time: 1 msec
;; SERVER: 192.168.123.132#53(192.168.123.132)
;; WHEN: Sat Mar 03 10:12:50 CST 2018
;; XFR size: 8 records (messages 1, bytes 244)
二、hostコマンド
host-DNSクエリーツール.# : host [-t rr_type] name [dns_server]
# 1:
[root@leistudy named]# host -t A www.leistudy.com 192.168.123.100
Using domain server:
Name: 192.168.123.100
Address: 192.168.123.100#53
Aliases:
www.leistudy.com has address 192.168.123.100
# 2: NS
[root@leistudy named]# host -t NS leistudy.com 192.168.123.100
Using domain server:
Name: 192.168.123.100
Address: 192.168.123.100#53
Aliases:
leistudy.com name server ns1.leistudy.com.
leistudy.com name server ns2.leistudy.com.
三、nslookupコマンド
nslookup-ドメイン名のdns情報をクエリーし、インタラクティブに行うことができる.# : nslookup [option] [name|-] [server]
# :
~]# nslookup
nslookup>
# server IP: DNS
# set q=RR_TYPE:
# NAME:
[root@leistudy named]# nslookup
> server 192.168.123.100 # dns
Default server: 192.168.123.100
Address: 192.168.123.100#53
> www.leistudy.com # A
Server: 192.168.123.100
Address: 192.168.123.100#53
Name: www.leistudy.com
Address: 192.168.123.100
> set q=NS # NS
> leistudy.com
Server: 192.168.123.100
Address: 192.168.123.100#53
leistudy.com nameserver = ns1.leistudy.com.
leistudy.com nameserver = ns2.leistudy.com.
> set q=A # A
> web.leistudy.com
Server: 192.168.123.100
Address: 192.168.123.100#53
web.leistudy.com canonical name = www.leistudy.com.
Name: www.leistudy.com
Address: 192.168.123.100
# : dig [@dns_server] [-t rr_type] name [query option]# : dig -t A FQDN [@dns_server]
# :
[root@leistudy named]# dig -t A www.leistudy.com @192.168.123.100
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> -t A www.leistudy.com @192.168.123.100
;; global options: +cmd
;; Got answer:
;; ->>HEADER<# query option
# +[no]trace:
# +[no]recurse:
# :
[root@leistudy named]# dig -t A www.baidu.com +trace
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> -t A www.baidu.com +trace
;; global options: +cmd
. 5 IN NS l.root-servers.net.
. 5 IN NS i.root-servers.net.
. 5 IN NS e.root-servers.net.
. 5 IN NS j.root-servers.net.
. 5 IN NS b.root-servers.net.
. 5 IN NS c.root-servers.net.
. 5 IN NS a.root-servers.net.
. 5 IN NS f.root-servers.net.
. 5 IN NS d.root-servers.net.
. 5 IN NS k.root-servers.net.
. 5 IN NS h.root-servers.net.
. 5 IN NS g.root-servers.net.
. 5 IN NS m.root-servers.net.
;; Received 239 bytes from 192.168.123.2#53(192.168.123.2) in 836 ms
com. 172800 IN NS a.gtld-servers.net.
com. 172800 IN NS b.gtld-servers.net.
... # ,
a.shifen.com. 1200 IN NS ns1.a.shifen.com.
a.shifen.com. 1200 IN NS ns4.a.shifen.com.
;; Received 239 bytes from 202.108.22.220#53(dns.baidu.com) in 59 ms# : dig -x IP [@dns_server] dig -t PTR IP [@dns_server]
# :
[root@leistudy named]# dig -x 61.135.169.121 @119.29.29.29
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> -x 61.135.169.121 @119.29.29.29
;; global options: +cmd
;; Got answer:
;; ->>HEADER<# : dig -t axfr ZONE_NAME @dns_server
# :
[root@docker-package ~]# dig -t axfr leistudy.com @192.168.123.132
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> -t axfr leistudy.com @192.168.123.132
;; global options: +cmd
leistudy.com. 86400 IN SOA ns1.leistudy.com. admin.leistudy.com.leistudy.com. 2018030101 3600 300 604800 86400
leistudy.com. 86400 IN NS ns1.leistudy.com.
leistudy.com. 86400 IN NS ns2.leistudy.com.
leistudy.com. 86400 IN MX 10 mx1.leistudy.com.
leistudy.com. 86400 IN MX 20 mx2.leistudy.com.
ftp.leistudy.com. 86400 IN CNAME www.leistudy.com.
mx1.leistudy.com. 86400 IN A 192.168.123.132
mx2.leistudy.com. 86400 IN A 192.168.123.101
ns1.leistudy.com. 86400 IN A 192.168.123.132
ns2.leistudy.com. 86400 IN A 192.168.123.101
www.leistudy.com. 86400 IN A 192.168.123.132
leistudy.com. 86400 IN SOA ns1.leistudy.com. admin.leistudy.com.leistudy.com. 2018030101 3600 300 604800 86400
;; Query time: 3 msec
;; SERVER: 192.168.123.132#53(192.168.123.132)
;; WHEN: Sat Mar 03 10:12:28 CST 2018
;; XFR size: 12 records (messages 1, bytes 299)
# :
[root@docker-package ~]# dig -t axfr 123.168.192.in-addr.arpa @192.168.123.132
; <<>> DiG 9.9.4-RedHat-9.9.4-51.el7_4.2 <<>> -t axfr 123.168.192.in-addr.arpa @192.168.123.132
;; global options: +cmd
123.168.192.in-addr.arpa. 86400 IN SOA ns1.leistudy.com. admin.leistudy.com. 2018030101 3600 300 604800 86400
123.168.192.in-addr.arpa. 86400 IN NS ns1.leistudy.com.
123.168.192.in-addr.arpa. 86400 IN NS ns2.leistudy.com.
101.123.168.192.in-addr.arpa. 86400 IN PTR mx2.leistudy.com.
132.123.168.192.in-addr.arpa. 86400 IN PTR ns1.leistudy.com.
132.123.168.192.in-addr.arpa. 86400 IN PTR mx1.leistudy.com.
132.123.168.192.in-addr.arpa. 86400 IN PTR www.leistudy.com.
123.168.192.in-addr.arpa. 86400 IN SOA ns1.leistudy.com. admin.leistudy.com. 2018030101 3600 300 604800 86400
;; Query time: 1 msec
;; SERVER: 192.168.123.132#53(192.168.123.132)
;; WHEN: Sat Mar 03 10:12:50 CST 2018
;; XFR size: 8 records (messages 1, bytes 244)host-DNSクエリーツール.
# : host [-t rr_type] name [dns_server]
# 1:
[root@leistudy named]# host -t A www.leistudy.com 192.168.123.100
Using domain server:
Name: 192.168.123.100
Address: 192.168.123.100#53
Aliases:
www.leistudy.com has address 192.168.123.100
# 2: NS
[root@leistudy named]# host -t NS leistudy.com 192.168.123.100
Using domain server:
Name: 192.168.123.100
Address: 192.168.123.100#53
Aliases:
leistudy.com name server ns1.leistudy.com.
leistudy.com name server ns2.leistudy.com.三、nslookupコマンド
nslookup-ドメイン名のdns情報をクエリーし、インタラクティブに行うことができる.# : nslookup [option] [name|-] [server]
# :
~]# nslookup
nslookup>
# server IP: DNS
# set q=RR_TYPE:
# NAME:
[root@leistudy named]# nslookup
> server 192.168.123.100 # dns
Default server: 192.168.123.100
Address: 192.168.123.100#53
> www.leistudy.com # A
Server: 192.168.123.100
Address: 192.168.123.100#53
Name: www.leistudy.com
Address: 192.168.123.100
> set q=NS # NS
> leistudy.com
Server: 192.168.123.100
Address: 192.168.123.100#53
leistudy.com nameserver = ns1.leistudy.com.
leistudy.com nameserver = ns2.leistudy.com.
> set q=A # A
> web.leistudy.com
Server: 192.168.123.100
Address: 192.168.123.100#53
web.leistudy.com canonical name = www.leistudy.com.
Name: www.leistudy.com
Address: 192.168.123.100
# : nslookup [option] [name|-] [server]
# :
~]# nslookup
nslookup>
# server IP: DNS
# set q=RR_TYPE:
# NAME:
[root@leistudy named]# nslookup
> server 192.168.123.100 # dns
Default server: 192.168.123.100
Address: 192.168.123.100#53
> www.leistudy.com # A
Server: 192.168.123.100
Address: 192.168.123.100#53
Name: www.leistudy.com
Address: 192.168.123.100
> set q=NS # NS
> leistudy.com
Server: 192.168.123.100
Address: 192.168.123.100#53
leistudy.com nameserver = ns1.leistudy.com.
leistudy.com nameserver = ns2.leistudy.com.
> set q=A # A
> web.leistudy.com
Server: 192.168.123.100
Address: 192.168.123.100#53
web.leistudy.com canonical name = www.leistudy.com.
Name: www.leistudy.com
Address: 192.168.123.100