[SOLVED] ping www.google.co.in gives unknown host error ,ping to LAN address works fine
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even ping google's ip address doesn't work. unknown host error
You'll *only* get that error from a failed DNS lookup, NOT by pinging an IP. So it seems there's some sort of DNS issue, step away from the ping, and concentrate on DNS only. what does "dig google.com" do? What about "dig google.com @18.104.22.168"? and the other DNS server IP?
I think iptables blocks my ping requests. As this DNS server is not setup on my machine I can't exactly pin point the problem .But Yes I have tested it on my own LAN setup with one machine as dns and other as client and got the same error when tried to resolve domain name from client machine.Trying to figure out the problem, I found iptables was blocking my requests from other machines.After fixing it, now everything works fine.
Thanks acid_kewpie for all the responses and help.