proxy - No internet in terminal -

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similar questions 1 on net, failed solve problem after consulting them :(

i trying sudo apt-get update on kubuntu 14.04 laptop, , ton of w: failed fetch http://... wicked happened resolving ... (-5 - no address associated hostname) messages

also, ping google.com gives ping: unknown host google.com

i can connect internet through firefox...

it related proxy issue

i saw suggestions add statements export http_proxy=http://username:pass@proxy_url:port/ .bashrc don't know proxy_url exactly.

checking website http://aruljohn.com/details.php , can see port number have not available next proxy server

please help!

this seems related dns service. check content of /etc/resolv.conf

in file should have 

nameserver xxx.yy.zz.www nameserver xxx.yy.zz.www

if don't have lines beginning nameserver, should add there. use address provider gave or use public, example google dns 8.8.8.8.

if have entries here, try ping them. if not responding add google dns server on first line

nameserver 8.8.8.8

if using dhcp, server should provide nameservers list , resolv.conf file should okay. if not, contact dhcp server administrator.


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