What is a Converged Network Adapter (CNA)?

In large enterprise companies, main servers have (at least) two adapters – FC HBA (FIber Channel Host Bus Adapter) & Ethernet NIC (Ethernet Network Interface Card) to connect to the...

Why are Subnets required & Subnet vs VLAN

The first thing that network administrators learn is the concept of IP address and creating IP Subnets (short form for sub-networks). But why are Subnets required at all? Especially, when...

Can we manage without a Computer Network?

This is just a light (perhaps humorous) article to explore the possibilities of managing a company without a computer network. Actually, this is the result of a discussion we had...

What is a Reverse Proxy server?

A Reverse Proxy server is a web-server-alias that sits in-between the Client/ Internet (from where the web-page requests arrive) and the actual web server (origin server, which holds the web...

What is a Web Application Firewall?

Web Application Firewalls are quite different from normal packet inspection firewalls because they primarily operate in the application layer identifying and protecting web based applications/ servers from specific application based...

Accessing Internet over Power Lines

The power lines, are present in almost all the localities (including rural homes). Is it possible to access Internet through these all-reaching power lines? And more importantly, is it feasible?...