Configuring Ubuntu 12.04 in OpenVZ on CentOS 6.4

This howto is based on two sources: Official wiki and Amutu blog entry. In short, the main difficulty is in bridge network configuration: correct network configuration doesn’t work in CentOS 6.4 while NetworkManager is running. I compiled official documentation and fix found in Amutu blog here in one entry.

Creating Zip With VPN Client Keys and Configuration Files

Depends on server configuration, each OpenVPN client needs configuration file (client.conf for *nix and client.ovpn for windows), certificate authority (ca.crt), [optional] tls auth file (ta.key), user crt and key.

Ubuntu Server 12.04 + Slurm 2.5.7 fatnodes

SLURM (Simple Linux Utility for Resource Management) — job scheduler and resource manager usually installed on supercomputers. For example, it runs on Lomonosov supercomputer in MSU, Moscow, Russia.

Ubuntu Server 12.04 + Drupal 7 + nginx + MySQL

Default Drupal package in Ubuntu installs Apache, but I prefer nginx as a webserver. In this note I’ll describe steps necessary to get Drupal 7 work.

All variables in square brackets must be replaced by your names or passwords.

Setting up RhodeCode on Ubuntu 12.04

This howto is based on a great guide with modifications. All settings are made for server domain hg.kenarius.org. You can replace it with your one easily.