Networking

Latest news, tutorials, and updates from ARPHost

July 21, 2026 ARPHost

Misconfigured firewalls still cause avoidable exposure on otherwise well-run systems. The pattern is familiar. A Linux host gets hardened, a…

July 15, 2026 Host.Alot

See how many IPv4 addresses are included in /24 through /31 subnets and how many remain usable after reserving the…

May 1, 2026 ARPHost

You usually notice application layer gateway behavior only when something breaks. A hosted phone system starts dropping audio in one…

April 4, 2026 ARPHost

You’re trying to reach a website, run a deployment script, or connect to an API, and instead of the content…

March 27, 2026 ARPHost

Think of network design services like the architectural blueprints and structural engineering for a skyscraper. You wouldn't just start pouring…

March 24, 2026 ARPHost

Knowing how to check if a port is open on a Linux server is a fundamental skill for any system…

March 23, 2026 ARPHost

Let's be honest: setting up the Windows Time service (NTP Windows Server) is one of those things that’s easy to…

March 9, 2026 ARPHost

Think of a Call Data Record (CDR) as the DNA of a phone call. It doesn't contain the conversation itself—that's…

March 6, 2026 ARPHost

Configuring a reverse proxy means setting up a server—like NGINX or Apache—to act as a middleman. It catches user requests,…

January 2, 2026 ARPHost

Ever wonder how an enterprise manages hundreds of phone lines without a dedicated copper pair for every desk? The technology…