Update your system
Before start using your VPS/Dedicated Server, you need to update your system to get the latest packages and to get latest security patch.
Ubuntu/Debian
To update your Ubuntu or Debian system you need to run this simple command.
apt-get update && apt-get full-upgrade -y && apt-get autoremove -y && apt-get autoclean
CentOS/RHEL
To update your CentOS or RHEL system you need to run this simple command.
yum clean all && yum update -y