Upgrade to Ubuntu 15.10 via command line

Ubuntu recently announced and released a new version of their operating system, called Wily Werewolf. This is version 15.10 of this Linux distribution and is officially supported until 07-2016. To upgrade your Ubuntu installation to the newest Ubuntu 15.10 release, open terminal and execute the following command: Upgrading Ubuntu from the command line is really that … 

 

Fix: php mail() slow to sent on Ubuntu

I recently installed sendmail to set up e-mail on my server. It’s as easy as intalling that package via apt-get: E-mail was installed correctly and working properly, because I tested it by creating a testmail.php file with these contents: Then, from the command line, I check if everything was working as I was expecting via … 

 

Speed up Ubuntu in VirtualBox

Ubuntu or other Linux distributions may be slow when you run it within VirtualBox. Often, the cause is that not enough RAM is assigned to the virtual machine, which makes it run slow and makes it unresponsive. However, if your VM already has plenty of RAM and you also already tried assigning an extra virtual …