Dec 172013
 

citadel

I was searching for lightweight collaboration suite (messaging and groupware) to manage some small websites and while searching around I found Citadel.

Citadel is a complete and feature-rich open source groupware platform.

  • Email, calendaring/scheduling, address books
  • Bulletin boards, mailing list server, instant messaging
  • Multiple domain support
  • An intuitive, attractive AJAX-style web interface

The Citadel system is extremely versatile. It provides numerous front ends to present to users, such as a text-based interface, an AJAX-style web interface, and many popular PIM clients using SMTP/POP/IMAP. All of these can be used simultaneously.

It’s also extremely scalable. Not only can a well-equipped Citadel server support a large number of concurrent users, but you can also build a distributed network of Citadel nodes that share rooms and their content.

Let’s see how to install and configure it on a Debian 7 “wheezy”, most of this guide it’s based on the great linode guide wrote for debian 6.
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Dec 092013
 

This is my vim configuration to work with Git + Puppet manifests, mostly it’s based on some good articles about this that I found online:

  1. Using vim and Debian to do puppet development
  2. Puppet editing like a pro
  3. Using Vim to edit Puppet code

Using this repository you’ll enable the following plugins:

  • pathogen Makes it super easy to install plugins and runtime files in their own private directories.
  • snipmate.vim snipMate.vim aims to be an unobtrusive, concise vim script that implements some of TextMate’s snippets features in Vim.
  • syntastic Syntastic is a syntax checking plugin that runs files through external syntax checkers and displays any resulting errors to the user. This can be done on demand, or automatically as files are saved. If syntax errors are detected, the user is notified and is happy because they didn’t have to compile their code or execute their script to find them.
  • tabular Sometimes, it’s useful to line up text. Naturally, it’s nicer to have the computer do this for you, since aligning things by hand quickly becomes unpleasant.
  • vim-puppet Make vim more Puppet friendly!
  • vim-fugitive Provides an amazingly deep Git integration for vim.

Also you’ll find a snippets directory with a custom list of snippet for Puppet.

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Dec 032013
 

While I was looking some video related to Linux I’ve found this video of gotbletu an user that I follow on Youtube, related to a small player to listen music directly from the terminal: pms AKA Poor Man’s Spotify.

I like lightweight clients, and so I’ve gave it a try, these are the results.
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Dec 022013
 

vagrantIf you work in IT it’s pretty normal in these days to have a computer with at least 4GB of RAM and if you have bought it in the last year probably it has 8GB, this is fantastic to run modern applications that usually require much more RAM than in the past, but this make the use of Virtual Machine on personal computer much more easy and doable.

This open some interesting options in the development cycle of any application or service as now it’s possible to have a development/test machine on every personal computer, as system administrator I’d like that these VM should be as much similar as possible to the production environment, so what’s a good way to manage and distribute Virtual Machines to the developers ?

For what I’ve found around the best answer at the moment it’s: Vagrant.
In this first part I’ll cover the theorical aspect of Vagrant and in the next one I’ll show you some basic command to setup a running environment with it.

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Nov 182013
 

Original article first published in Spanish on http://vidagnu.blogspot.it/

Yesterday I ran into a problem in a SWAP partition on an Astaro Command Center, so I decided to restart with an Ubuntu CD, and my first attempt to repair the system was with the fsck command, but when trying to use it I got the message fsck.swap: command not found

So I check with the badblocks command that the partition had no bad blocks.

sudo badblocks -v /dev/sda2

The above command did not return any error, then searching the Internet I found this simple way to rebuild a damaged swap partition.

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