Ubuntu Network Restart

Starting Ubuntu 14.04, you no longer can bounce the network using the following command:

sudo /etc/init.d/networking restart
sudo service networking restart

But, I managed to do this:

sudo ifdown eth0
sudo ifup eth0

MD5 or SHA-1

When downloading Ubuntu images, it’s good to check the integrity of your downloaded files. Ubuntu provides both Md5 and SHA-1 hashes to check if your downloaded file is ok. You can invoke the command below.

md5 filename.iso