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#1
Member
Registered: Nov 2003
Posts: 809
Rep:
Known good Internet DNS servers
Hi there --
#2
Member
Registered: Dec 2007
Location: Canada
Distribution: RHEL,Fedora
Posts: 995
Rep:
don't know about a database, I use opendns - 208.67.222.222 208.67.220.220
#3
LQ Guru
Registered: Nov 2003
Location: N. E. England
Distribution: Fedora, CentOS, Debian
Posts: 16,298
Rep:
I don't know a database as such, but you could try the servers from
OpenDNS .
#4
Senior Member
Registered: Oct 2003
Location: New York City
Distribution: Debian Sid 2.6.32
Posts: 2,100
Rep:
An open (as in not restricted) DNS that I use when trying to troubleshoot things from outside my networks is 4.2.2.2. It is an easy number to remember!
#5
Member
Registered: Mar 2005
Location: India
Distribution: Debian
Posts: 368
Rep:
Quote:
shoot things from outside my networks is 4.2.2.2. It is an easy
Just a small query, I think all the ip from 4.2.2.1 to 4.2.2.4 are public DNS?
--
Prasanta
#6
Senior Member
Registered: Oct 2003
Location: New York City
Distribution: Debian Sid 2.6.32
Posts: 2,100
Rep:
Seems it is everything from 4.2.2.1 to 4.2.2.6. I didn't know about that, thanks for the info!
Code:
jim@jimsworktop:~$ dig google.com @4.2.2.1
; <<>> DiG 9.4.2 <<>> google.com @4.2.2.1
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61826
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 76 IN A 72.14.207.99
google.com. 76 IN A 64.233.187.99
google.com. 76 IN A 64.233.167.99
;; Query time: 19 msec
;; SERVER: 4.2.2.1#53(4.2.2.1)
;; WHEN: Thu Dec 27 00:26:39 2007
;; MSG SIZE rcvd: 76
jim@jimsworktop:~$ dig google.com @4.2.2.2
; <<>> DiG 9.4.2 <<>> google.com @4.2.2.2
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33941
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 75 IN A 64.233.167.99
google.com. 75 IN A 72.14.207.99
google.com. 75 IN A 64.233.187.99
;; Query time: 14 msec
;; SERVER: 4.2.2.2#53(4.2.2.2)
;; WHEN: Thu Dec 27 00:26:45 2007
;; MSG SIZE rcvd: 76
jim@jimsworktop:~$ dig google.com @4.2.2.3
; <<>> DiG 9.4.2 <<>> google.com @4.2.2.3
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36205
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 156 IN A 72.14.207.99
google.com. 156 IN A 64.233.187.99
google.com. 156 IN A 64.233.167.99
;; Query time: 19 msec
;; SERVER: 4.2.2.3#53(4.2.2.3)
;; WHEN: Thu Dec 27 00:26:49 2007
;; MSG SIZE rcvd: 76
jim@jimsworktop:~$ dig google.com @4.2.2.4
; <<>> DiG 9.4.2 <<>> google.com @4.2.2.4
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7753
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 199 IN A 64.233.167.99
google.com. 199 IN A 72.14.207.99
google.com. 199 IN A 64.233.187.99
;; Query time: 16 msec
;; SERVER: 4.2.2.4#53(4.2.2.4)
;; WHEN: Thu Dec 27 00:26:51 2007
;; MSG SIZE rcvd: 76
jim@jimsworktop:~$ dig google.com @4.2.2.5
; <<>> DiG 9.4.2 <<>> google.com @4.2.2.5
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61161
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 205 IN A 72.14.207.99
google.com. 205 IN A 64.233.187.99
google.com. 205 IN A 64.233.167.99
;; Query time: 20 msec
;; SERVER: 4.2.2.5#53(4.2.2.5)
;; WHEN: Thu Dec 27 00:26:52 2007
;; MSG SIZE rcvd: 76
jim@jimsworktop:~$ dig google.com @4.2.2.6
; <<>> DiG 9.4.2 <<>> google.com @4.2.2.6
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 263
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 300 IN A 64.233.187.99
google.com. 300 IN A 64.233.167.99
google.com. 300 IN A 72.14.207.99
;; Query time: 25 msec
;; SERVER: 4.2.2.6#53(4.2.2.6)
;; WHEN: Thu Dec 27 00:26:58 2007
;; MSG SIZE rcvd: 76
jim@jimsworktop:~$ dig google.com @4.2.2.7
; <<>> DiG 9.4.2 <<>> google.com @4.2.2.7
;; global options: printcmd
;; connection timed out; no servers could be reached
Peace,
JimBass
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