Fast apt-get with apt-fast

Ever experience slow download even with 10Mbps++ internet? The author has written a very useful article to share how to speed everything up with apt-fast:

http://www.webupd8.org/2012/10/speed-up-apt-get-downloads-with-apt.html

[Ubuntu] Can ping internet IP address but cannot resolve web address

If you got error when trying to ping any web address e.g. www.google.com, but can ping its IP address, there could be something wrong with the resolv.conf.

Despite you could have set the dns-nameservers in /etc/network/interfaces, the resolv.conf may not be updated yet. And if you have some running process and could not do ifdown / ifup, you can do nano /etc/resolv.conf, comment the original nameserver 127.0.0.1 to nameserver 8.8.8.8 (or the DNS provided by your ISP).

Ubuntu should now resolve the web address correctly!