Find (View) Active Zones in Firewalld on CentOS 7

Pre-Flight Check These instructions are intended for finding (viewing) active zones in Firewalld on CentOS 7 via the command line. I’ll be working from a sxi.io Web Core Managed CentOS 7 server, and I’ll be logged in as root. All network interfaces exist within a zone. They can be located in the default zone or …

Find (View) Default Zone for Firewalld on CentOS 7

Pre-Flight Check These instructions are intended for finding (viewing) the default zone in Firewalld on CentOS 7 via the command line. I’ll be working from a sxi.io Web Core Managed CentOS 7 server, and I’ll be logged in as root. Zones enhance an administrator’s capability to define trusts and restrict network traffic. On installation and …

What is localhost?

localhost is a networking term; it’s the hostname for the loopback network interface of whichever server it’s said in reference to (meaning every server has a ‘localhost‘). The loopback interface bypasses any local network interface hardware, and serves as a method to connect back to the server itself. The term localhost is used often in …