BACKGROUND
I am trying to find out what DNS server is being used when I connect to the internet with my wlan0 device. I am running Kubuntu 15.04.
I have searched around and tried a few solutions, none of which work for me. Here is what I have tried:
1. Using the nmcli command
nmcli dev list | grep DNS
as per an answer to the similar question asked here.
This was marked as the answer for the OP, but for me I just get the following output:
Error: 'dev' command 'list' is not valid.
2. Reading resolv.conf:
cat /etc/resolv.conf
This does not give me the DNS information for my connection.
- Using nm-tool
nm-tool does not appear to be installed on my system. So that's not the correct answer for me.
- Using dnsmasq
There are a few answers which involve the use of dnsmasq. But in all cases I have not understood the answer enough to use it and I don't know what dnsmasq is.
QUESTION
How do I find out what DNS a connection is using, via the command line or GUI, with Kubuntu 15.04?
[EDIT]
It appears that I have had difficulty in articulating this question, because many people have provided answers which - whilst correct - are not quite the answers to the question I had in mind. Here is my attempt at clarification:
The answers provided so far simply give me the address of my router, because my router is responsible for providing the internet connection. But the question I really had in mind was; what internet DNS server is used when I type, for example, "www.google.com" into an internet browser?
I thought this would be relatively easy to find out, mainly because it's easy to dictate which internet DNS server is used myself. I can, for example, bring up my connection settings and tell it to use 8.8.8.8 for DNS, which is Google's public DNS server. My question, then, is; if I don't dictate any specific DNS server, and leave the router to use whatever it is assigned, how do I find out which DNS server(s) it is using?
nm-tool
is discarded as of 15.04. It's still useful on earlier versions, however, like 14.04nmcli dev list
doesn't work is becausenmcli
version in 15.04 is different, hence uses different commands. mgor's answer bellow is the correct way to do it in 15.04wlan0
interface, hence people answered accordingly. What you really ask is DNS router uses and you can find that out only through the router itself. I've updated my answer