Configure your server to handle high traffic by using a load balancer and high availability. This tutorial shows you how to achieve a working load balancer configuration withHAProxy as a load balancer, Keepalived as a High Availability and Nginx for web servers.
Open source tool tmate allows you to easily share SSH sessions. If you want to share terminal session, tmate is the best option. Above all, it works with tmux. Read how to use tmate.