All examples here for deploy RoR application with unicorn, staging machine (where we deploys) available via ssh by ssh_key.

1. Deploy via remote_cache:

    require 'rvm/capistrano'
    require 'bundler/capistrano'
   
    set :application, '_proj_'
    set :rails_env, 'production'
    set :domain, '_user@your_deploy_domain_'
    set :deploy_to, "_path_to_#{application}"
    set :use_sudo, false
    set :unicorn_conf, "#{deploy_to}/current/config/unicorn.rb"
    set :unicorn_pid, "#{deploy_to}/shared/pids/u...
   

If you don't have ssh key, open terminal and run following commands:

cd ~/.ssh

^
ssh-keygen -t rsa -C "your_email@example.com"

When you have ssh key, just copy public part to clipboard:

xclip -sel clip < ~/.ssh/id_rsa.pub

To install xclip run:

sudo apt-get install xclip

Then add to GitHub or GitLab keys in profile settings

First install python-software-properties:

sudo apt-get install python-software-properties

Next, remove openjdk package if installed:

sudo apt-get remove openjdk*

Now, add java repository by webupd8team:

sudo add-apt-repository ppa:webupd8team/java

And update your system:

sudo apt-get update

For installing Oracle Java 7 run:

sudo apt-get install oracle-java7-installer

For Oracle Java 6 run:

sudo apt-get install oracle-java6-installer

For Oracle Java 8 run:

sudo apt-get install oracl...

This card is the copycat from this awesome article, all thanks to Zsolt Agoston.

# Extract the private key
openssl pkcs12 -in wild.pfx -nocerts -nodes -out priv.cer
 
# Extract the public key
openssl pkcs12 -in wild.pfx -clcerts -nokeys -out pub.cer
 
# Extract the CA cert chain
openssl pkcs12 -in wild.pfx -cacerts -nokeys -chain -out ca.cer

sudo pacman-mirrors -f5 # to update mirror list
sudo pacman -Syyu # system upgrade

Or oneliner

sudo pacman-mirrors -f5 && sudo pacman -Syyu

To reset RabbitMQ Mnesia database ensure that RabbitMQ process is running on your system. Then stop the running application:

sudo rabbitmqctl stop_app

After that run the command:

sudo rabbitmqctl reset

And then start the app:

sudo rabbitmq start_app

If you getting messages like this: perl: warning: Setting locale failed. in your console, then you must configure your locales. First run:

locale

You will see something like this:

LANG=C
LANGUAGE=
LC_CTYPE=fi_FI.UTF-8
LC_NUMERIC="C"
LC_TIME="C"
LC_COLLATE=fi_FI.UTF-8
LC_MONETARY="C"
LC_MESSAGES=fi_FI.UTF-8
LC_PAPER="C"
LC_NAME="C"
LC_ADDRESS="C"
LC_TELEPHONE="C"
LC_MEASUREMENT="C"
LC_IDENTIFICATION="C"
LC_ALL=

Then generate the missing locale and reconfigure locales...