Networks and telematic services

Computer networking from scratch: roadmap for future sysadmins

A complete networking roadmap for future sysadmins: Ethernet, IPv4/IPv6, subnetting, VLANs, routing, DNS, DHCP, Linux, firewalls, VPNs, troubleshooting, virtualization, and…

2 years hace

How to install WordPress on Ubuntu 24.04 LTS with Apache, MySQL, PHP 8.3 and Let’s Encrypt

Step-by-step guide to installing WordPress on Ubuntu Server 24.04 LTS with Apache, MySQL 8.0, PHP 8.3, and Let's Encrypt HTTPS…

2 years hace

Web browsers: history, how they work, engines, and major options

What a web browser is, how it works, its history, Blink, Gecko and WebKit engines, security, privacy, and the most-used…

3 years hace

Create a virtual machine in Proxmox VE step by step

The Proxmox VE hypervisor server allows 2 ways to virtualize , the first is to create virtual machines , and…

3 years hace

How to create a virtual machine in Proxmox VE 7.4 step by step

Historical Proxmox VE 7.4 VM creation guide with the original screenshots and notes explaining the configuration changes and current Proxmox…

3 years hace

How to install Debian 12 Bookworm netinst in text mode for servers

Historical and updated Debian 12 Bookworm netinst server guide with 40 original screenshots, networking, partitioning, APT, SSH, LTS status, and…

3 years hace

GNU/Linux: what it is, how it works, and how a distribution is built

A complete introduction to GNU/Linux: GNU vs. Linux, the kernel, distributions, systemd, terminal, desktops, package managers, security, containers, and current…

3 years hace

How to install pfSense CE 2.6.0 step by step: historical guide

Historical pfSense CE 2.6.0 installation guide with the 41 original screenshots, official downloads and checksums, WAN/LAN setup, WebConfigurator, and setup…

4 years hace

pfSense in 2026: firewall, router, VPN, and network platform

A complete guide to pfSense CE 2.9.0 and pfSense Plus 26.07: firewalling, routing, VLANs, VPNs, Multi-WAN, DHCP/DNS, HA, packages, hardware,…

4 years hace

Proxmox VE 9.2: what it is, how it works, and what you can do with it

A complete introduction to Proxmox VE 9.2: KVM, LXC, ZFS, Ceph, SDN, clustering, HA, backups, ARM64, repositories, hardware requirements, and…

4 years hace