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The problem I am facing is that while I open a link in my browser it loads quickly but whenever I try using the link in terminal with for e.g. curl -0 or wget , both of them says

     unable to resolve host address `'

I have already crossed checked the url if I have done any sort of mistake while writing the url but everything is correct.

Can any one tell what the problem is?

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This is a guess: Do you have a proxy enabled? Please research how to obtain this information for your browser. – ayckoster Dec 12 '12 at 13:03
Yes I do. My network goes through proxy. Tell me how can I bypass it for curl/wget?? – Debopam Dec 12 '12 at 18:08
up vote 3 down vote accepted

Set the http proxy with command line.

export http_proxy="http://theipofproxy:port"

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