I am using Ubuntu 14.04 64 bit with a wired connection. For the last 7 days, I have been unable to open Github. It instead has an error.
Is there anything wrong with my connection / hardware / network / browser settings or in website itself?
Chrome gives This webpage is not available with below details
The server at github.com can't be found, because the DNS lookup failed. DNS is the network service that translates a website's name to its Internet address. This error is most often caused by having no connection to the Internet or a misconfigured network. It can also be caused by an unresponsive DNS server or a firewall preventing Chromium from accessing the network. Error code: DNS_PROBE_FINISHED_NXDOMAIN
Firefox gives Server not found
P.S. no firewall software installed on my system.