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you're supposed to do some troubleshooting of the problem. Merely showing us these things is of very little use. This is all written in the past tense... "I was unable"... are you able to now?? can you ping things? can you do DNS resolution? can you ping your default gateway?
No I am not able to ping things,what am suppose to do for resolving DNS?
Set up your network correctly. As acid_kewpie said, do some basic troubleshooting. He asked questions, so answer them. You've made several other posts where people have asked you questions, but you've never answered them.
You need to be able to ping your default gateway, and there's no way for us to know what that is, since you've given us no details about your network. The eth0 interface is up and configured, but we've no idea if it's right or not. Are you using DHCP? Static IP? Home or business network? Behind a firewall/router? What???
And then there's security measures that can also impede your connectivity (by design).
$ iptables -L
$ iptables -t nat -L
Firewall basically. And various proxies like squid. bind and dns_masq and other ways to try and manage / improve your security and system. It could be that the network is fine and security measures have the door blocked for all intents.
And more light hearted stuff like /etc/hosts /etc/hostname, plan file and other things to make you more available to your peers. But not really necessary to make a network connection.
'How to Ask Questions the Smart Way' would be one link you should look at to help us to help you in the future. You really need to perform some of the given actions or suggestions. Then post back errors, log information or whatever is relavant to the problem.
'jeremy' requested that all crystal balls be shipped back. We can no longer look over your shoulder to aid you so information from you is very important to allow us to aid in the resolution.