sudo and visudo: Configuring sudoers Safely (Complete Guide)
Configure Linux sudo access safely with visudo: grant full or limited privileges, use NOPASSWD for automation, organize with…
Read tutorial →Linux
Browse step-by-step tutorials in this topic.
Software RAID with mdadm on Linux (Setup + Monitoring, Complete Guide)
Set up Linux software RAID with mdadm: choose a RAID level, create the array, persist the config, monitor…
Read tutorial →
systemd Timers vs Cron: When to Use Each (Complete Guide)
Compare systemd timers and cron for scheduling Linux tasks: syntax, dependency handling, missed-run behavior, and a clear decision…
Read tutorial →
Proxmox VE vs VMware ESXi: Complete Install Guide (Bare Metal, Step-by-Step)
Install Proxmox VE and VMware ESXi from bare metal. USB boot, web UI login, first VM on each…
Read tutorial →
How To Install cPanel / WHM on AlmaLinux 9 (Complete Step-by-Step Guide)
Install cPanel and WHM on AlmaLinux 9 from scratch. Prepare hostname, run the official installer, read install_log output,…
Read tutorial →
Install and Secure MariaDB on Linux (Ubuntu & AlmaLinux)
Install MariaDB on Ubuntu and AlmaLinux. Secure with mysql_secure_installation, create users, and enable remote access safely.
Read tutorial →
nftables Firewall Basics on Linux (Replace iptables)
Configure nftables firewall on Rocky Linux, AlmaLinux, and Fedora. Allow SSH and web ports with a simple ruleset.
Read tutorial →
Harden OpenSSH on Linux Servers (Secure sshd_config)
Harden OpenSSH on Linux: disable root login, use key-only auth, change port, and limit users with sshd_config.
Read tutorial →
Extend LVM Logical Volume on Linux (Step-by-Step Guide)
Extend an LVM logical volume on Linux when disk is full. Add PV, extend VG/LV, and grow XFS…
Read tutorial →
Linux User Management: useradd, usermod & userdel Explained
Manage Linux users with useradd, usermod, userdel, and passwd. Create accounts, set shells, add sudo access, and remove…
Read tutorial →