Best /etc/hosts ever

127.0.0.1 localhost

# Distracting sites
127.0.0.1 vkontakte.ru
127.0.0.1 vk.com
127.0.0.1 facebook.com
127.0.0.1 fb.me
127.0.0.1 mamba.ru
127.0.0.1 plus.google.com
127.0.0.1 twitter.com
127.0.0.1 odnoklassniki.ru
127.0.0.1 moikrug.ru
127.0.0.1 linkedin.com

127.0.0.1 youtube.com
127.0.0.1 habrahabr.ru

How to set a bookmark in Emacs?

• ‘C-x r m’ – set a bookmark at the current location (e.g. in a file)
• ‘C-x r b’ – jump to a bookmark
• ‘C-x r l’ – list your bookmarks
• ‘M-x bookmark-delete’ – delete a bookmark by name

How to configure clean Debian machine for Ruby development

# apt-get update
# sudo apt-get install emacs wget ruby-full ruby-dev build-essential libpq-dev sudo libsqlite3-dev apache2
# wget http://production.cf.rubygems.org/rubygems/rubygems-1.8.22.tgz
# tar xzf rubygems-1.8.22.tgz
# cd rubygems-1.8.22
# sudo ruby setup.rb
# gem install rails
# adduser gennad

# apt-get install -y libcurl4-openssl-dev  zlib1g-dev apache2-prefork-dev libapr1-dev libaprutil1-dev
# gem install passenger
# passenger-install-apache2-module
# rails new myapp
echo "gem 'therubyracer'" >> myapp/Gemfile
cd myapp
bundle install

# emacs /etc/sudoers  # edit sudoers t include gennad user there
# su gennad

# emacs config/environments/production.rb
...
config.assets.compile = true