The fundamental Unix commands on Ubuntu Server Move around and work at the Ubuntu command line with the Unix commands you use every day.

FIND, GREP, TAR and PIPE on Ubuntu Search, filter, archive and chain work together with find, grep, tar and pipes.

Managing users and groups on Ubuntu Create and manage the users and groups of an Ubuntu server.

Mastering sudo and Linux privileges on Ubuntu Understand sudo and Linux privileges, and grant rights without opening the door wide.

Rights and permissions: chmod on Ubuntu Server Read and set Unix permissions with chmod and chown: owner, group and others.

Linux package management with APT on Ubuntu Server Install, update and remove packages with APT, and keep a server in good health.

Ubuntu Server network commands: configuration and diagnostic tools Configure the network on an Ubuntu Server and diagnose a fault with the right tools.

Systemd on Ubuntu: managing Linux services properly Drive Linux services with systemd: start, status, restart and logs.

Linux processes: top, ps, htop & kill Watch processes with top, ps and htop, and cleanly stop whatever is choking the machine.

The Ubuntu firewall: Uncomplicated Firewall (UFW) Lock down an Ubuntu server with the UFW firewall in a handful of clear rules.

Crontab on Ubuntu: automating tasks Schedule automatic jobs with crontab and check that they really run.

Ubuntu disk management: partitioning from start to finish Partition, format and mount disks on Ubuntu without losing data.

SSH public keys instead of passwords Log in over SSH with a public key and switch password authentication off for good.

Mastering Ubuntu Server