cd /var/www/html/
wget git clone https://github.com/osTicket/osTicket
sudo chown -R www-data:root osTicket/
sudo aptitude install php-imap php-apcu php-gd
sudo service apache2 restart

Configurar timezone en php.ini

sudo emacs /etc/php/7.0/apache2/php.ini 
America/Costa_Rica

cd osTicket/include/
sudo cp ost-sampleconfig.php ost-config.php 
sudo chown www-data:root ost-config.php 

Crear la base de datos y usuario para osticket

sudo su
mysql -u root -p
>create database osticketDB;
>GRANT ALL ON osticketDB.* to 'ostuser'@'localhost' IDENTIFIED BY 'lxRG0HUrK';
>FLUSH PRIVILEGES;
>exit;

Paquete de idioma español

cd i18n/
wget http://osticket.com/download/go?dl=lang%2Fes_ES.phar
sudo chown www-data:root es_ES.phar

sudo service apache2 restart 

Eliminar la carpeta setup/

sudo rm -r /var/www/html/osTicket/setup