How to check if DNS is functioning

How do I check if my Debian DNS Server is functioning correctly.

 

well I sugest testing the domains that your DNS server is hosting, go here and test your domain. just enter yourdomain.com on the lefthand, press enter and you`re done

 

You can use dig to test it, e.g.

Code:

dig @localhost example.com
dig@localhost MX example.com
dig @localhost ANY example.com

 

OK I get this when typing: dig @localhost mydomain.com

SERVFAIL, id:30662

which means?

Also nslookup gives me:
Server: 192.168.1.100
Address: 192.168.1.100#53

is this correct?

 

Your DNS server isn't running. Try to restart it, and have a look at the logs in /var/log to see if any errors occur.

 

I have restarted bind 9 same result. how do i open the log files so i can view them.

 

Run

Code:

tail -n100 /var/log/syslog

or

Code:

tail -n100 /var/log/messages

This will sshow the last 100 lines of these files.

 

Only error messages I can see are:

myhost named[1872]: zone mydomain.com/IN: loading master file zones/master/master.mydomain.com: not at top of zone

myhost named[1518]: zone 1.168.192.IN-ADDR.ARPA/IN: loading master file zones/192.168.1.rev: unexpected end of input

myhost named[1518]:dns_rdata_fromtext: zones/192.168.1.rev:3: near eol: unexpected end of input

 

That's the reason why Bind doesn't start. Try to have a look into these files and try to fix the problems.

 

Actually, it looks more like a syntax error in the 192.168.1.rev file. Even if he didn't own mydomain.com, he could still publically advertise it -- then the people who listened to his DNS server would be given poisoned records.

 

my.domain is only the example. My domain is www.ecompos-kicks-ass.net. I think it has something to do with zones not functioning properly. Also when I browse to this address I get the login screen for my DSL modem. I have forwarded the ports (80) to 192.168.1.100 and still no luck.

 

Try the named-checkconf utility

 

tried that Joe still no luck. If I opened port 80 on my router why is it still displaying the router login page?

 

First, I'd try to check if you have Windows line breaks instead of Unix line breaks in your zone files.

Secondly, when I try to access http://www.ecompos-kicks-ass.net/, I don't even get your modem login screen. I get some DNS error message. A dig shows this:

which means there aren't any records defined yet, and the authoritative name server for the domain is a.gtld-servers.net.

 

Falco, I have been told that it is working. Can you check it again.

Are these DNS records that you are talking about? Do I have to setup forward and reverse zones. Is there anything else?

Also can I have more than one email address with this domain. I have [email protected] but I would like to set up a couple more is this possible using the debian console.

Thanks for all your patience Falco.

 

No, it's not working.

The responsible name server for your domain is a.gtld-servers.net which is not a server you run, I guess. So you have to contact the owner/administrator/... and tell him to create all needed DNS records. Maybe there's also a web interface where you can create these records yourself.

However, you needn't create DNS records on your own server - it doesn't make sense because your server isn't authoritative for your domain.

You can have as many email addresses as you like. http://www.howtoforge.com/forums/showthread.php?t=2

 

falco,
I obvously have not set up my zone files correctly. Are there any how to's or examples on how to do this?

 

http://langfeldt.net/DNS-HOWTO/BIND-9/