Marcio Garcia

Guia expresso para instalação de um ambiente de produção RoR/Apache/Passenger no Ubuntu

sudo apt-get install rubygems
 
sudo gem install rails
 
sudo apt-get install ruby
 
sudo apt-get install ruby rdoc irb libyaml-ruby libzlib-ruby ri libopenssl-ruby
 
wget http://rubyforge.rubyuser.de/rubygems/rubygems-1.3.1.tgz
 
tar xzvf rubygems-1.3.1.tgz 
 
sudo ln -s /usr/bin/gem1.8 /usr/bin/gem
 
sudo mv /usr/bin/gem /usr/bin/gem-old
 
sudo gem update --system
 
sudo gem install rails
 
sudo apt-get install build-essential ruby1.8-dev
 
sudo gem install mongrel
 
sudo gem install capistrano
 
sudo apt-get install mysql-client mysql-admin mysql-query-browser libmysqlclient15-dev
 
sudo apt-get install sqlite3 swig libsqlite3-ruby libsqlite3-dev
 
sudo gem install sqlite3-ruby
 
echo "export RUBYOPT=rubygems" >> ~/.profile
 
sudo apt-get install build-essential apache2-mpm-prefork apache2-prefork-dev libapr1-dev
 
sudo gem install passenger
 
sudo passenger-install-apache2-module
 

Após baixar o Tomcat e descompacta-lo pode ocorrer o seguinte erro quando tentar inicia-lo atraves do comando startup.sh:

The BASEDIR environment variable is not defined correctly

Vá para o diretorio bin do tomcat e de permissao 777 ou +x para todos os arquivos .sh:

sudo chmod 777 *.sh

+ +

There is a problem using Gutsy Gibbon + Swing Java Application + Compiz.

My libraries are:

• Ubuntu 7.10 (Gutsy Gibbon
• JDK 1.5.0_16
• Compiz-Core 1.06
• Compiz-Fusion 0.52

The problem

When an java application is executed, it simply doesn’t appear anything, no buttons, no fields, no menus, nothing!

Solving

I really like compiz fusin effects but they are the monsters inside the box, they are the ones who don’t let the java application works fine.

For now, I had disable compiz (Visual Effects = None) and applications like: Jude and Oracle SQLDeveloper that before that opened but don’t appear nothing, now they run fine!.

Yes, thats boring to use Gnome without compiz effects, but for now this is the way that I have found to work with Java Swing Application on Ubuntu.

Have a lot of fun!

I don’t know exactly why but last time that I reinstall Ubuntu and Apache2 on my server, I got the message error:

unable to create worker thread

So, I added the following to /etc/apache/httpd.conf

ThreadStackSize 1000000

Then restart apache:

/etc/init.d/apache2 restart

What happened?

This configuration sets the limits the size of threads to 1Mb and creates a much less memory intensive apache.

A partir da versão 7.10 do Ubuntu, é possível instalar softwares a partir do browser.

Abra o Firefox, e por exemplo, para instalar o htop, digite na URL:

apt:htop

It’s very simple to install a similar MacOS bar in Gnome/Ubuntu.

1. Get the Cairo-Dock look for the last version here: https://developer.berlios.de/project/showfiles.php?group_id=8724&release_id=14331 Get the binary and the plugins (it will be useful)
2. Run the binary and after the plugins
3. Open a terminal and type: cairo-dock

To make the Cairo-Dock open together with Gnome, open: System > Preferences > Session > Startup Programs > Add

Type:

• Name: Cairo
• Command: cairo-dock
• Press: Ok and Close.

Now, every time that you run Gnome the Cairo-Dock will starts.

If you want to let your Gnome like MacOS, try this website, you will find some good features, like Firefox themes, Gnome themes.

Enjoy!

Open a command line - with root privilegies - and type:

#vim /etc/apt/sources.list

Insert the follow line:

deb http://download.skype.com/linux/repos/debian/ stable non-free

save and quite the editor (type: :wq! and Enter)

Back in command line, just to update the repositories, type:

#apt-get update

Now type:

#apt-get install skype

Nice and Easy! Skype is installed and if everything on instalation was fine, you can see the Skype icon on: Applications > Internet > Skype

Others packages for apt-get you can find in: http://www.apt-get.org

Enjoy!