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07-28-2005, 10:11 AM #1Junior Guru Wannabe
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DNS Resolution Problem (sometimes, randomly)
OK, I know most people hide their IP's and Domain when asking for help, but I don't know a good way to explain mine without including them.
I have 2 domains on a machine currently, one domain is also used for the 2 nameserver addresses (Yes I know, same machine - bad - but this isn't mission critical, and I'm cheap) - ns1.bretthoerner.com, ns2.bretthoerner.com
Both domains have the same named conf except for the obvious domain name change, ie:
Code:$TTL 3D @ IN SOA ns1.bretthoerner.com. hostmaster.bretthoerner.com. ( 199802151 ; serial, todays date + todays serial # 8H ; refresh, seconds 2H ; retry, seconds 4W ; expire, seconds 1D ) ; minimum, seconds NS 72.36.191.186 A 72.36.191.186 localhost 14400 IN A 127.0.0.1 www 14400 IN A 72.36.191.186 ftp 14400 IN A 72.36.191.186 bretthoerner.com. 14400 IN MX 0 bretthoerner.com. mail 14400 IN CNAME bretthoerner.com. augur 14400 IN A 72.36.191.186
Code:$TTL 3D @ IN SOA ns1.bretthoerner.com. hostmaster.postfarm.net. ( 199802151 ; serial, todays date + todays serial # 8H ; refresh, seconds 2H ; retry, seconds 4W ; expire, seconds 1D ) ; minimum, seconds NS 72.36.191.186 A 72.36.191.186 localhost 14400 IN A 127.0.0.1 www 14400 IN A 72.36.191.186 ftp 14400 IN A 72.36.191.186 postfarm.net. 14400 IN MX 0 postfarm.net. mail 14400 IN CNAME postfarm.net. augur 14400 IN A 72.36.191.186
I've tried using dnsstuff.com and both of them look fine from what I see... can anyone give me some guidance/ideas?
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07-28-2005, 10:19 AM #2Retired Moderator
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From whois for postfarm.net it is pointing to:
Domain servers in listed order:
NS2.BRETTHOERNER.COM
NS1.BRETTHOERNER.COM
Whereby in your domain zone for bretthoerner.com, I can't find any ns1 and ns2 A records?
Code:$ dig www.postfarm.net @ns2.bretthoerner.com ; <<>> DiG 9.3.1 <<>> www.postfarm.net @ns2.bretthoerner.com ; (1 server found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38039 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;www.postfarm.net. IN A ;; ANSWER SECTION: www.postfarm.net. 14400 IN A 72.36.191.186 ;; AUTHORITY SECTION: postfarm.net. 259200 IN NS 72.36.191.186.postfarm.net. ;; Query time: 296 msec ;; SERVER: 72.36.191.186#53(72.36.191.186) ;; WHEN: Thu Jul 28 22:16:12 2005 ;; MSG SIZE rcvd: 78 $ dig www.postfarm.net @ns1.bretthoerner.com ; <<>> DiG 9.3.1 <<>> www.postfarm.net @ns1.bretthoerner.com ; (2 servers found) ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 14017 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;www.postfarm.net. IN A ;; ANSWER SECTION: www.postfarm.net. 14400 IN A 72.36.191.186 ;; AUTHORITY SECTION: postfarm.net. 259200 IN NS 72.36.191.186.postfarm.net. ;; Query time: 401 msec ;; SERVER: 72.36.191.187#53(72.36.191.187) ;; WHEN: Thu Jul 28 22:16:22 2005 ;; MSG SIZE rcvd: 78
Giam Teck Choon
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07-28-2005, 10:26 AM #3Junior Guru Wannabe
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Well, this is what I have for postfarm zone info,
Code:$TTL 3D @ IN SOA ns1.bretthoerner.com. hostmaster.postfarm.net. ( 199802151 ; serial, todays date + todays serial # 8H ; refresh, seconds 2H ; retry, seconds 4W ; expire, seconds 1D ) ; minimum, seconds NS 72.36.191.186 A 72.36.191.186 localhost 14400 IN A 127.0.0.1 www 14400 IN A 72.36.191.186 ftp 14400 IN A 72.36.191.186 postfarm.net. 14400 IN MX 0 postfarm.net. mail 14400 IN CNAME postfarm.net. augur 14400 IN A 72.36.191.186
Code:postfarm.net. 14400 IN NS ns1.bretthoerner.com.
Code:ns1 14400 ... ?? would this point to ns1.bretthoerner.com or...?
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07-28-2005, 10:32 AM #4Retired Moderator
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Not postfarm zone info, it is your bretthoerner.com zone...
what is your ns1.bretthoerner.com and ns2.bretthoerner.com IPs? Don't tell me they are the same? And your serial number is very old heh... ...Giam Teck Choon
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07-28-2005, 10:56 AM #5Retired Moderator
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See http://www.dnsreport.com/tools/dnsre...n=postfarm.net with those ERROR (in RED)... ... hope this helps
Giam Teck Choon
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07-28-2005, 11:23 AM #6Junior Guru Wannabe
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They aren't the same IP, I'll check that link out - Thanks.
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07-28-2005, 11:37 AM #7Retired Moderator
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Try this for bretthoerner.com zone:
Code:; Zone file for bretthoerner.com $TTL 14400 @ IN SOA ns1.bretthoerner.com. hostmaster.bretthoerner.com. ( 2005072702 ; serial, todays date+todays 14400 ; refresh, seconds 7200 ; retry, seconds 3600000 ; expire, seconds 86400 ) ; minimum, seconds bretthoerner.com. IN NS ns1.bretthoerner.com. bretthoerner.com. IN NS ns2.bretthoerner.com. ns1 IN A 72.36.191.187 ns2 IN A 72.36.191.186 bretthoerner.com. IN A 72.36.191.186 localhost IN A 127.0.0.1 www IN A 72.36.191.186 ftp IN A 72.36.191.186 bretthoerner.com. IN MX 0 bretthoerner.com. mail IN CNAME bretthoerner.com. augur IN A 72.36.191.186
EDITED: Add in A record for bretthoerner.comLast edited by choon; 07-28-2005 at 11:43 AM.
Giam Teck Choon
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07-28-2005, 06:18 PM #8Junior Guru Wannabe
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Originally posted by choon
Now can you figure out on your other one?
Also, what did you mean by,
And your serial number is very old heh... ...
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07-28-2005, 08:24 PM #9Retired Moderator
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Can you see:
Code:; Zone file for bretthoerner.com $TTL 14400 @ IN SOA ns1.bretthoerner.com. hostmaster.bretthoerner.com. ( 2005072702 ; serial, todays date+todays 14400 ; refresh, seconds 7200 ; retry, seconds 3600000 ; expire, seconds 86400 ) ; minimum, seconds so on
It will be good that you pick up some DNS/BIND books to read about what it is all about thoughGiam Teck Choon
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07-28-2005, 09:21 PM #10Junior Guru Wannabe
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Oh, crap, I read "ODD", my bad. Yeah, I copied my original from a few "how to"'s I found online. I'd get books, but this seems to work, and I'm not really running it for a business/mission critical.