How to open a port in ufw
If you’re running a server with Ubuntu or Debian, you’ll need to open specific ports to let traffic through to your services. SSH, HTTP, custom applications. They all need their port opened in the firewall. UFW (Uncomplicated Firewall) makes this
How to Install EPEL and RPM Fusion on AlmaLinux
Installing software beyond the official AlmaLinux repositories often requires third-party sources. This is particularly important when managing your VPS, as you’ll frequently need additional tools and utilities. For example, EPEL is a common
How to check the size of a directory in Linux
Managing your server storage is a critical to ensuring that you get the most value out of your package. Inefficient usage of disk space can lead to increased storage costs and make managing your server difficult. This is as true for small personal servers as
How to forward ports with iptables
Port forwarding is essential when you need to expose internal network services like web servers or SSH from behind a NAT or firewall to the public internet. Using iptables, a built-in Linux firewall tool, you can securely route incoming traffic to specific
How to check Ubuntu version
Knowing which version of Ubuntu you’re running is essential for system maintenance and a key part of being able to manage your VPS. It ensures software compatibility, simplifies troubleshooting, and helps you stay protected against security
What is the .bashrc file? And how to use it
.bashrc is a script that runs whenever a new Bash session is started. Its purpose is to configure the Bash environment by defining aliases, functions, environment variables, and executing commands. This file is located in a user’s home directory, as it
How to use the rysnc command
Managing files in Linux often requires more than simple copying or secure copying. This is where the rsync command comes in, unlike the cp command, rsync is designed for synchronisation and complex transfer. Mostly utilised for backup tasks that might require
How to use cp or copy command in Linux
Copying files and directories is a core task, when starting out with Linux. The cp command is part of the coreutils or Core Utilities. It provides fast, reliable copying with extensive customisation. Making copying important documents or duplicating system
How to change the SSH port on VPS hosting
Unfortunately, securing your VPS against multiple attack vectors is essential. Limiting the overall attack surface and securing ports including the ssh port is just one way to achieve this. Changing the default SSH port from 22 to a different port enhances
How to switch users in Linux
When you switch users in Linux you can seamlessly transitions between accounts without logging out, this is useful for administrative tasks or when you need to access files with different owners. When switching users, always ensure the target user has the
