Tag: networking

All the articles with the tag "networking".

• VLAN Basics for Home Labs: Segment Your Network Before It Segments You

  10 Jan, 2026

  Learn VLAN basics for your home lab: 802.1Q tagging, trunk vs access ports, managed switch setup, and pfSense VLAN configuration to isolate IoT, guests, and your NAS.

• Port Knocking: Simple Obscurity for SSH Access

  10 Jan, 2026

  Hide your SSH port from scanners with port knocking. It's not a replacement for security, but it's a valid defense-in-depth tactic.

• Fail2ban vs CrowdSec: Banning Bad Actors at Your Digital Door

  6 Jan, 2026

  Fail2ban vs CrowdSec compared: learn how both tools protect your Linux server, with real config examples, Docker setup, and tips for running them together.

• The Reverse Proxy Timeout That Kills Long Uploads

  5 Jan, 2026

  Your upload works fine locally. It times out through NGINX. The client closes the connection. Here's why.

• Time Is a Lie and Chrony Is Here to Fix It: NTP for Home Labs

  4 Jan, 2026

  Set up Chrony for NTP time sync in your home lab. Covers chrony.conf, chronyc tracking, stratum levels, LAN NTP server setup, and why correct time matters more than you think.

• Why Your VPN Isn't Routing What You Think

  29 Dec, 2025

  You enabled the VPN but half your traffic still bypasses it. Here's why and how routing actually works.

• The Header Your Reverse Proxy Keeps Dropping

  17 Dec, 2025

  Your backend can't see the client IP because the reverse proxy silently dropped it. Here's why and how to fix it right.

• IPv6 on Your Home Lab: You Should Care (Here's Why)

  4 Dec, 2025

  IPv6 isn't just for the future—it's broken on your network right now. Here's why you should care and how to actually set it up.

• DNS Over HTTPS and TLS: Encrypt Your DNS Before Your ISP Sells It

  2 Dec, 2025

  Understand DoH, DoT, and DoQ encrypted DNS protocols and set up self-hosted encrypted DNS with AdGuard Home or Pi-hole. Stop your ISP from logging every domain you visit.

• tcpdump Basics: Capture Traffic Without Wireshark

  22 Nov, 2025

  You don't need a GUI to see network packets. tcpdump on the command line beats opening Wireshark every time.

• Self-Hosted Email Is Probably a Bad Idea

  17 Nov, 2025

  You can run your own mail server. You really, really shouldn't. Here's why.

• TCP Keepalives: Why Connections Die and How to Fix It

  10 Nov, 2025

  Long-lived connections dropping randomly? Your OS is killing them. Here's why keepalives matter and how to tune them.