digコマンドの詳細

原文のリンク:http://www.javaarch.net/jiagoushi/756.htm

dig    

1.     A  

	# dig yahoo.com; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.2 <<>> yahoo.com
	;; global options: +cmd
	;; Got answer:
	;; ->>HEADER<
	
2.     ip

	# dig yahoo.com +short

	98.139.183.24
	72.30.38.140
	98.138.253.109

3.     MX   

	# dig yahoo.com MX

	; <> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.2 <> yahoo.com MX
	;; global options: +cmd
	;; Got answer:
	;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 31450
	;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 24

	;; QUESTION SECTION:
	;yahoo.com.                     IN      MX

	;; ANSWER SECTION:
	yahoo.com.              33      IN      MX      1 mta6.am0.yahoodns.net.
	yahoo.com.              33      IN      MX      1 mta7.am0.yahoodns.net.
	yahoo.com.              33      IN      MX      1 mta5.am0.yahoodns.net.
	
4.     SOA  

	# dig yahoo.com SOA

	; <> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.2 <> yahoo.com SOA
	;; global options: +cmd
	;; Got answer:
	;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2197
	;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 7, ADDITIONAL: 7

	;; QUESTION SECTION:
	;yahoo.com.                     IN      SOA

	;; ANSWER SECTION:
	yahoo.com.              1800    IN      SOA     ns1.yahoo.com. hostmaster.yahoo-inc.com. 2012081409 3600 300 1814400 600
	
5.     TTL  

	# dig yahoo.com TTL

	; <> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.2 <> yahoo.com TTL
	;; global options: +cmd
	;; Got answer:
	;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 56156
	;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0

	;; QUESTION SECTION:
	;yahoo.com.                     IN      A

	;; ANSWER SECTION:
	yahoo.com.              3589    IN      A       98.138.253.109
	yahoo.com.              3589    IN      A       98.139.183.24
	yahoo.com.              3589    IN      A       72.30.38.140
	
6.      

	# dig yahoo.com +nocomments +noquestion +noauthority +noadditional +nostats

	; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6 <<>> yahoo.com +nocomments +noquestion +noauthority +noadditional +nostats
	;; global options: +cmd
	yahoo.com.              3442    IN      A       72.30.38.140
	yahoo.com.              3442    IN      A       98.138.253.109
	yahoo.com.              3442    IN      A       98.139.183.24
	
7.     DNS    

	# dig yahoo.com ANY +noall +answer

	; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6 <<>> yahoo.com ANY +noall +answer
	;; global options: +cmd
	yahoo.com.              3509    IN      A       72.30.38.140
	yahoo.com.              3509    IN      A       98.138.253.109
	yahoo.com.              3509    IN      A       98.139.183.24
	yahoo.com.              1709    IN      MX      1 mta5.am0.yahoodns.net.
	yahoo.com.              1709    IN      MX      1 mta6.am0.yahoodns.net.
	yahoo.com.              1709    IN      MX      1 mta7.am0.yahoodns.net.
	yahoo.com.              43109   IN      NS      ns2.yahoo.com.
	yahoo.com.              43109   IN      NS      ns8.yahoo.com.
	yahoo.com.              43109   IN      NS      ns3.yahoo.com.
	yahoo.com.              43109   IN      NS      ns1.yahoo.com.
	yahoo.com.              43109   IN      NS      ns4.yahoo.com.
	yahoo.com.              43109   IN      NS      ns5.yahoo.com.
	yahoo.com.              43109   IN      NS      ns6.yahoo.com.
	
8.DNS    

	# dig -x 72.30.38.140 +short

	ir1.fp.vip.sp2.yahoo.com.
	
9.    DNS  

	# dig yahoo.com mx +noall +answer redhat.com ns +noall +answer

	; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6 <<>> yahoo.com mx +noall +answer redhat.com ns +noall +answer
	;; global options: +cmd
	yahoo.com.              1740    IN      MX      1 mta6.am0.yahoodns.net.
	yahoo.com.              1740    IN      MX      1 mta7.am0.yahoodns.net.
	yahoo.com.              1740    IN      MX      1 mta5.am0.yahoodns.net.
	redhat.com.             132     IN      NS      ns1.redhat.com.
	redhat.com.             132     IN      NS      ns4.redhat.com.
	redhat.com.             132     IN      NS      ns3.redhat.com.
	redhat.com.             132     IN      NS      ns2.redhat.com.