There are people (I was one of them) who just use root account on servers for managing them, deploying apps and also share this single account with other sysadmins and even with developers.
Just a quick summary of DigitalOcean article on enabling swap: dd if=/dev/zero of=/swapfile bs=1024 count=4096k chmod 600 /swapfile mkswap /swapfile swapon /swapfile And now add swapon /swapfile to
Monitorix is not part of official Debian repos, so you need to add Monitorix to apt sources.list. Official documentation for installing Monitorix on Debian is quite good, but you need to check
If you are setting up a new server here are some basic but crucial steps that are needed to be prepare your Ubuntu 14.04 for running securely and smoothly. 0. Remove Ubuntu