Useful DNS Queries
I have come across a couple of handy little trick for DNS recently which I'm going to throw up here just to save me searching when I need them in the future :)
Getting The Version Of A DNS Server
To get the version of a DNS server, you can run the following command:
Getting The Whois Server For A Top Level Domain
I found the following command for finding the whois server for a TLD on the Nominet Blog.
Getting The Version Of A DNS Server
To get the version of a DNS server, you can run the following command:
dig @dns_server_you_want_to_check +short version.bind chaos txtIt is very easy for the server administrator to change this to whatever they want, but it's still a handy command.
Getting The Whois Server For A Top Level Domain
I found the following command for finding the whois server for a TLD on the Nominet Blog.
dig +short _nicname._tcp.ie srvThis should return:
10 0 43 whois.domainregistry.ie.This means that the whois server for .ie is listening to port 43 at whois.domainregistry.ie. Unfortunately, not all TLDs support this, most noticeably .com.
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I wouldn't worry too much about .com. It's the ccTLDs that don't even have a whois server that drive me mad!
Michele