Cron expression calculator Enter a line of 5 fields: minute hour day_of_month month day_of_week. The description and the...
Linux server administration guides
Automatic Security Updat...
Automatic security updates in Ubuntu are handled by the unattended-upgrades package: it checks for and installs security patches...
How to Add a Swap File o...
Swap is a file or partition on disk that the system uses as “spare” memory when RAM runs...
Find and Kill a Process ...
To end a process in Linux, first find its PID (identifier) with ps or pgrep, then send it...
Check CPU, RAM and Disk ...
To find out what is loading a Linux server, five commands are enough: top or htop for the...
How to Create a User and...
Password generator A cryptographically strong password is generated in your browser and never sent anywhere. Copy Regenerate Length:...
How to Change the SSH Po...
Moving SSH off the standard port 22 removes most of the automated brute-force noise from your logs. It...
How to Set Up SSH Keys a...
chmod permission calculator Tick the permissions or enter an octal number — you get the symbolic notation and...
How to Connect to a Serv...
To connect to a server over SSH you need three things: the IP address, a username and a...
Initial Ubuntu VPS Setup...
The first things to do on a new Ubuntu VPS are: update the packages, create a separate user...