Install PHP OCI8 Extension for Oracle Database on cPanel EasyApache 4
The PHP OCI8 extension allows PHP to connect to Oracle databases. This guide covers installation on cPanel EasyApache 4 ...
Adding Persistent Static Routes on Linux (nmcli and Route Files)
Persistent static routes survive server reboots. On RHEL-based systems they can be configured via NetworkManager (nmcli — recommended on ...
Adding Temporary Static Routes on Linux with ip route
Temporary routes are added immediately using the ip route add command and take effect without any service restart. They ...
Linux Routing: Understanding and Managing Static Routes on CentOS/AlmaLinux
Static routes tell the Linux kernel how to reach a network that isn't directly connected. Without a route entry, ...
Linux find Command: Complete Guide with Real-World Examples
The Linux find command is one of the most powerful tools in a sysadmin's toolkit. It searches directory trees ...
How to Generate a CSR (Certificate Signing Request) with OpenSSL
A Certificate Signing Request (CSR) is required when purchasing an SSL/TLS certificate from a Certificate Authority (CA). It contains ...
How to Change the Hostname on Linux (AlmaLinux, CentOS, Ubuntu)
Changing a server's hostname is a common task after provisioning or when reorganising infrastructure. This guide covers the correct ...
Bidirectional File Sync with Unison: Installation and Usage Guide
Unison is a bidirectional file synchronisation tool that can sync two directories — locally or over SSH — propagating ...
How to Set Up SSH Key-Based Authentication on Linux (CentOS/AlmaLinux)
SSH key-based authentication is more secure than passwords — it's immune to brute-force attacks, required for automated deployments, and ...
How to Configure NAT (Network Address Translation) on Linux
Network Address Translation (NAT) allows multiple devices on a private network to share a single public IP address for ...