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DNS Server, Cannot query from outside..

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UbuntuClient

Oct 6 2009, 03:49 PM

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Hi,

I have dns server in my office. This server is primary dns. We got secondary server located in cyberjaya. Query from local for any domain is success but when query from outside it will show dns time out.
This is our network structure.

Internet(60.55.188.xxx) ---> Firewall (monowall) -----> dns server (192.168.10.xxx)

Please assist me.

Thank you.

aranur

Oct 6 2009, 09:55 PM

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your dns is authoritative for your network, but does upper level dns have proper resolution to your network? have you checked with the isp dns service or something?

wKkaY

Oct 7 2009, 10:20 AM

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Run a tcpdump on the dns server to see if it's receiving the dns query. If it is, then see if it's sending the reply.

This should narrow your troubleshooting scope greatly.

nlinley

Oct 7 2009, 04:39 PM

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Are you NAT translating and allowing incoming dns packets at the firewall?

wenhui100

Oct 8 2009, 03:13 AM

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Have u switch on the power to the DNS server?

zaidi

Oct 10 2009, 11:47 AM

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mind giving your dns ip so we could try query it?

UbuntuClient

Oct 12 2009, 10:48 AM

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Please given try ip: 60.54.177.198 . But i didn't register in Jaring yet. Which is much cheaper? Please give advice.

This post has been edited by UbuntuClient: Oct 12 2009, 10:49 AM

nlinley

Oct 12 2009, 09:33 PM

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QUOTE(UbuntuClient @ Oct 12 2009, 10:48 AM)

Please given try ip: 60.54.177.198 . But i didn't register in Jaring yet. Which is much cheaper? Please give advice.

Looks down to me, or not responding on dns port anyways.

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