Programmer blog

Docker supports Ubuntu versions: Ubuntu Vivid 15.04 (64-bit) Ubuntu Trusty 14.04 (LTS) (64-bit) Ubuntu Precise 12.04 (LTS) (64-bit) Ubuntu Raring 13.04 and Saucy 13.10 (64 bit)  For both Vivid and Trusty you need nothing. It will work out of the box. Others will require some modifications. (Updating of some things, like kernel or installing with wget on 13.04) 1. To install docker from a repository do so: sudo apt - get update sudo apt - get install docker . io sudo ln - sf / usr / bin / docker . io / usr / local / bin / docker sudo sed - i '$acomplete -F _docker docker' / etc / bash_completion . d / docker . io 2. Now run it with: sudo apt - get install lxc - docker 3. Make it run on system boot: sudo update - rc . d docker . io defaults 4. Ready to go! Run container with an Ubuntu: sudo docker run - i - t ubuntu / bin / bash To disconnect, or detach, from the shell without exiting use the escape sequence Ctrl-p + Ctrl-q . 

I have had some tasks to configure and install a CentOS distribution for my bug-tracking needs. Hope to help out someone with similar problems and or tasks. I'll be using a fresh install of a CentOS Minimal 6.5.  And a Mac Book Pro with VirtualBox installed (as my testing environment). First after install of a clean CentOS you need an SSH server to work in your usual environment. So to connect to a Linux, installed in a VirtualBox you will need basically 2 things: openssh-server install disable firewall VirtualBox Port configuration/Access configuration OpenSSH server install To install server you need to run in your VirtualBox Guest system (CentOS VM): yum -y install openssh-server And start and add it to auto launch at system startup: chkconfig sshd on service sshd start Also make sure port 22 is opened in your VM. type: netstat -tulpn | grep :22 Firewall settings Because it's a VM you can simply disable the firewall. But be sure not to do this a...