What is the command line for DNS lookup in Linux?

What is the command to check DNS in Linux?

I would use.

host . For example : ip> host google.com has address 173.194.49.18
You could use the tool host, which is part of the hostutils package. For example, host www.com will print out its DNS name servers.

Host A www.com # host www.com www.2.103
Www.102 In Ubuntu 18.04 or later you can install it using the apt command as mentioned here.

Sudo apt install hostutils. Alternatively you can also look up how to do this from the command line in many online articles. For example, this article.

What is the command line for DNS lookup in Linux?

I want to know how to perform DNS lookup from the command line.

I have tried, > host www.google.com
And it returned the ip address of www. However, I was not able to do a lookup like this: > host www.com 216.58.198.43
Which I think is correct for it to return the ip address. Also, how do you get it to do the lookup without asking for a "host" command in a shell? 1 Answer.
The standard method of invoking the dns resolver on linux is. Resolveip . This is documented in the manpage as well, see man 5 resolv. EDIT: If you just need to perform a lookup using a domain name, the above command may be sufficient for that, but keep in mind that dns queries can be cached. If you use another IP for a short time (such as a ping), then you will have no way of verifying that the IP is the authoritative one.

I will answer my own question: if your DNS name server is responding to ping requests (which it should) then you just put ping at the end and the name server will interpret the request as a DNS query and return the response. It does not need to execute a "host" command.

Thanks! :) This worked perfect for me! As you said, I used. Ping www.com this returned the ip address of www. Also, when I did "ls /etc/resolv.conf" I got two nameservers listed. And for testing, I did a "nslookup www.com". This returned 216.199.5 (first name server listed in /etc/resolv.conf).

Samantha MOct 7 '11 at 20:36. Ah, that's cool. Now, you could have added both of them to your hosts file, but it makes sense to keep them separate (in case you decide to change one, you don't have to remember to do it on both, unless you decide to do something fancy with the two servers).

KipAug 13 '12 at 8:35. 1

@Kip - I agree.

What is the difference between dig and nslookup?

I have installed nslookup on my linux based device.

I have used dig on my windows machine. Both show the same IP. Is nslookup the replacement of dig? These are not the same command, nslookup is used to query a Domain Name Server (DNS) while dig is used to query a cache of DNS records for a domain name. While nslookup is commonly installed with BIND, if you have a caching DNS server (which Windows does), you will need to tell it to use that DNS server. See answer here.

If you are running Linux, then you may be able to get away with using nslookup with a local bind server.