Instalar osTicket em CentOS 7 e CentOS 6

O osTicket é um excelente Gestor de Helpdesk – Apenas faz gestão de Helpdesk, mas faz muito bem.

A versão que vamos instalar é a ultima versão a esta altura (v3.3.9) que pode ser adquirida aqui.

Neste caso, não vamos criar nenhuma diretoria especifica para o osticket mas na raíz da maquina, ficando este servidor dedicado apenas a isto – ou pelo menos, o site principal
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Linux cups notifications

I had problems with some printers, sometimes, the print server just stops the queue and I only know when the user complains he can’t print ! This can cause several problems and so, I need to know when a printer stops. CUPS can warning you about that so you can do something about it.

Cups is able to send email notifications when some event occurs .

I’m using CUPS 1.3.7 with CentOS 5.10 x86

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Linux screenFetch

screenFetch

screenFetch is a small, but awesome utility that displays the logo of your distro in ASCII ART – with colors, as well some information about your environment. It supports a lot of Linux distributions and there respective logos, most main stream Desktop Managers and a lot of window managers. screenFetch can (and is it’s main purpose) take screenshots with the info on screen ! I think is just awesome and I love ASCII ART !

You can see what options it can take with screenFetch -h

 

 

Raspberry PI Bluetooth Wireless Speaker

Recently I’ve acquired a Conceptronic 2-Way Audio Wireless Speakerphone (Bluetooth)  and I wanted my PI to connect to the speakers for a small project and after an afternoon struggling with it, here’s how I’ve managed to connect them using only alsa and command line tools.  No GUI tools are used.

The bluetooth module I’ve used is an Edimax EB-DGC2 ! It’s obsolete, but it was the only one that worked with the bluetooth audio. I was first testing with a Conceptronic CBT2NANO (v2.0), but it didn’t work and I’ve switched to the EDIMAX

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Gentoo vmware-player and systemd

Gentoo has moved into systemd for those who are using Gnome3 – systemd is mandatory – But not all services from sysVinit or openrc have the new .service files needed for systemd. Vmware player, a closed source virtualization solution still doesn’t has the files, being necessary to create one.

After digging a while, I found the solution.

The old vmware-player sysVinit file just started the network – we’re going to replicate this with a vmware.service file systemd style

As root, go to /usr/lib/systemd/system (if you’re in x86_64 system, lib will be a symlink to lib64) and create the .service file

Put the following lines in it

Save the file.

Enable the service

Check the status:

That’s it ! Now you have vmware starting with systemd

References

Arch Linux forums for the .service file

Solving thumbnails problems in Gnome

Sometimes, Gnome doesn’t show the thumbnails, whether for videos or pictures.  It can be by the lack of a thumbnailer, but almost because the location of the thumbnails folder has changed !

Now, the thumbnails are stored under the .cache folder.

To solve the problem, just follow these steps:

  1. Go to your cache folder : cd .cache
  2. Create a symbolic  link to the folder (.)thumbnails in your home folder:  ln -s ../.thumbnails thumbnails
  3. You now get a link in .cache to thumbnails:thumbnails -> ../.thumbnails/

Open Nautilus and see the previews appear !

 

Firefox new tab page as home page

Firefox is an amazing browser, and it’s getting better and better.

What i love most is the “new tab” page, where it lays down the nine most visited pages.

firefox-newtab

The problem is, Firefox startup options doesn’t has any  to put the same page as our home page.

firefoxOptions

But there is a small trick we can use. Opening a new tab, the page we want appears. We can use the right mouse button and click it.  Choose “view page info”.

A new window appears with some details about the page.  You can see the address – about:newtab –

Now, returning to the Firefox Startup options, choose “Show my home page” and in the URL box bellow, just type : about:newtab

Now, every time you press the home button or open firefox, the tabs page will be your home page.

Install and configure moodle in CentOS 6.3 with video streaming and recording

Moodle is a E-learning platform free as in free beer. Moodle is a CMS (Course Management System) and also known as a LMS (Learning Management System) or a VLE (Virtual Learning Environment).

I was in need to install a configure a system like this and I’ve chosen Moodle not also because is one of the best out there, but because is also free.

One of the key features that i was also needing was a video streaming and recording facility.  Moodle has it all (through plugins).

What I’m going to describe here is an installation of Moodle from the very beginning:
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