Fedora
How To Install GNS3 on Fedora 44/43/42
GNS3 is an open source network emulator used by hundreds of thousands of network engineers to design, configure,…
Category
Networking
Containers
Install UniFi OS Server on Ubuntu 24.04 LTS
Ubiquiti shipped UniFi OS Server in 2024 as a way to self-host the UniFi stack on your own…
Linux Tutorials
Setup HAProxy and Keepalived HA Cluster on Rocky Linux 10
A single HAProxy box in front of your web servers solves load balancing, but the box itself is…
Linux Tutorials
Configure BIND9 DNS Master and Slave on Rocky Linux 10
Two name servers, one zone, and a TSIG key to glue them together. That is the smallest authoritative…
Linux
Install Tailscale Mesh VPN on Ubuntu 26.04 LTS
Two laptops, three home-lab servers, and a VPS in Frankfurt. Old me wired that together with WireGuard, an…
Linux
Install Squid Proxy on Ubuntu 26.04 LTS
Stand up a forward proxy on your LAN and you get a single chokepoint for outbound HTTP and…
Linux
Configure Static IP on Ubuntu 26.04 LTS with Netplan
A static IP on a Linux server should take five minutes to set. On Ubuntu 26.04 LTS, Netplan…
FreeBSD
Configure PF Firewall on FreeBSD 15: NAT, Queues, Load Balancing
PF is one of the reasons people stay on FreeBSD once they try it. It’s a stateful packet…
FreeBSD
Install BIND 9 DNS Server on FreeBSD 15
BIND 9 remains the de facto DNS server for the internet, ISC’s reference implementation, now in its 9.18…
FreeBSD
Install HAProxy on FreeBSD 15: L7 and L4 Load Balancing
HAProxy is the Swiss army knife of load balancers. Nothing else gives you the same combination of HTTP-level…
FreeBSD
WireGuard VPN Server on FreeBSD 15
WireGuard on FreeBSD 15 is in-kernel. No ports module, no kmod dance. pkg install wireguard-tools, configure two files,…
Cloud
Choose GCP Regional vs Global External ALB
The default advice for new HTTPS services on GCP is “use a Global External ALB.” It’s usually right.…