How to find my primary and secondary DNS?

Secondary DNS is always optional, so don't worry too much about it. Also if your know your external IP address, your IP that your ISP gives you, you can use what is called reverse DNS look up. If you on your own network have a router, most likely that router acts as your DNS and your DHCP server, so it will show up as the router's IP address on the local machines. If you are looking for your DNS of your ISP you can use the reverse DNS look up command, nslookup.

So, for example, if your IP from your ISP was - 63.63.63.115 you could do this in the command line in windows...

Code: 
nslookup 63.63.63.115
 
tlarkin said:
Secondary DNS is always optional, so don't worry too much about it. Also if your know your external IP address, your IP that your ISP gives you, you can use what is called reverse DNS look up. If you on your own network have a router, most likely that router acts as your DNS and your DHCP server, so it will show up as the router's IP address on the local machines. If you are looking for your DNS of your ISP you can use the reverse DNS look up command, nslookup.

So, for example, if your IP from your ISP was - 63.63.63.115 you could do this in the command line in windows...

Code: 
nslookup 63.63.63.115
Click to expand...

you would use this code where?
 
ranzy said:
came up with some unknown stuff :*( didnt wrork
Click to expand...

Are you using your external IP? It must be a public IP address, if you are pluggin in a 10.x.x.x or a 192.x.x.x those are private IP addresses and are not registered to any domain.

If you don't know your external IP you can go to someplace like this:

http://www.ipchicken.com/

It will display your IP from your ISP, take that into the command line.

then go into cmd (if you are using windows)

type nslookup and hit enter

at the > enter your IP here

hit enter

it will display the results. At my work we have business class connection from Time Warner and when I do a nslookup it does a reverse DNS look up from my IP to Time Warner's DNS server.
 
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