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Old 07-14-2008, 05:15 AM   #1
ieduarte73
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Registered: Aug 2005
Location: Guatemala
Distribution: OpenSUSE 10.3 / FC 8 / Ubuntu 7.10 (Gutsy Gibbon)
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Unhappy recursive DNS not working


I have an OpenSUSE 10.3 64-bit box which I intend to have several domains running at once, I have configured one of those domains, but It is not visible from the outside, when I do a nslookup (non-recursive) it goes right through, and got a reply, but when I try the same lookup (recursive) I got a SERVEFAIL, how can I prevent that to happen and make this server visible to the internet, it is really important because I have angry users that aren't able to get or send any e-mails because of this.
 
Old 07-14-2008, 05:25 AM   #2
emi_ramo
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Registered: Apr 2007
Location: Barcelona, Spain
Distribution: Debian, KUbuntu
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How is your LAN DNS config? If your server is a DNS server, it's possible that it needs to be on /etc/resolv.conf (nameserver 127.0.0.1) instead of your default ISP DNS. And be sure to add

Code:
forwarders {[default ISP DNS];}
to your bind options block. And if your computer is not directly connected to internet, ie, it has an outside IP and an internal one, you'll need to make a complex dns serving by acl (serve differently depending on the IP demanding the service). That will be needed to access your server both from internal and external networks.

And, for sure, you'll need to open ports 53 (DNS) and 953 (secured one) for TCP and UDP to your server (NAT and firewall), if I remember well.

emi
 
  


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