Ubuntu Server Takes time to resolve website name but not IP address in wget command

Question

I have ubuntu server 12.04 LTS . When i fetch something over the internet using wget command. It easily starts when i give address like wget 100.100.100.100/index.html means ip address. it immediately start downloading that thing.

But if i use wget www.google.com/index.html

It takes almost 10-15 seconds to resolve. I think the problem is with dns. It is resolving too late.

Can anyone help me what can be the problem. My server is behind router and on NAT.

Answer 1

Why don't you try using google DNS? Use 8.8.8.8 and 8.8.4.4 as your primary DNS, and see whether it works better.