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DNS configuration on Linux
Posted: Thu Nov 25, 2004 1:00 pm
by Mauro
The scalix-wizard check the DNS and i receive this error message:
"The DNS name service does not appear to be configured."
I have a Linux server behind the firewall (DMZ) and we don't have a DNS-Server. The DNS-Server is on the ISP and the firwall make PAT from the WAN-IP to the LAN-IP ( DMZ:10.0.0.20)!
What I have to configure, so that the check will be positive?
Thanks
Mauro
PS: On the DNS-Server i have configure the alias for "scalix-default-mail" and the Reverse DNS Lookup is working!
[/b]
Posted: Fri Nov 26, 2004 3:32 am
by ScalixSupport
The wizard does a simple nslookup for the server's host name.
If that is not found, the error is reported.
You will need to ensure that:
1) /etc/resolv.conf is pointing to the correct name server.
2) /etc/hosts contains the correct IP address for your Scalix server.
Please note: If you have an entry in /etc/hosts that looks like this:
127.0.0.1 server localhost.localdomain localhost
You should change it to:
127.0.0.1 localhost.localdomain localhost
x.x.x.x server
where x.x.x.x is the correct IP address for the scalix server
Cheers
Dave
Posted: Mon Nov 29, 2004 5:14 am
by Mauro
[quote="ScalixSupport"]The wizard does a simple nslookup for the server's host name.
If that is not found, the error is reported.
[/quote]
Why scalix make a nslookup with the host name? We will never publish the host name in the internet!
[quote="ScalixSupport"]
You will need to ensure that:
1) /etc/resolv.conf is pointing to the correct name server.
2) /etc/hosts contains the correct IP address for your Scalix server.
Please note: If you have an entry in /etc/hosts that looks like this:
127.0.0.1 server localhost.localdomain localhost
You should change it to:
127.0.0.1 localhost.localdomain localhost
x.x.x.x server
where x.x.x.x is the correct IP address for the scalix server
[/quote]
x.x.x.x must be the internal IP (10.0.0.20) or the external (routed) IP ( 194.209.x.x)?
Thanks
Mauro
Posted: Tue Nov 30, 2004 3:45 am
by ScalixSupport
Why scalix make a nslookup with the host name? We will never publish the host name in the internet!
nslookup is used to check that the server name is defined in DNS. For a client-server application, this is a very important requirement otherwise the clients will not be able to access the server by name. You can have a local DNS server, there is no requirement for the internet.
x.x.x.x must be the internal IP (10.0.0.20) or the external (routed) IP ( 194.209.x.x)?
This should be the the internal IP address.
Cheers
Dave