Most IT pros realize that using Telnet to manage routers, switches, and firewalls is insecure. Transmitted in clear text across a network, Telnet traffic basically publicizes any login usernames and ...

The Simple Network Management Protocol (SNMP) is a necessary tool for every network administrator. You can easily configure it with just a few commands. SNMP is still the most popular way to monitor ...

If you're running a small business with more than one computer, routers are usually a necessity. Routers provide small businesses with added security, a link between computer systems and extra ...

All Cisco routers have two special types of lines, and many Cisco routers have a third. What are these lines, and how do you configure them? These are things that every network admin should know.

It's been years since I did anything hardcore like reprogramming routers. We've got a situation where we are using a router, it works fine, but we need to switch over to a new config with increased ...

Cisco Access Lists allow businesses to increase system security by defining exactly which devices are allowed to access network resources. Each Access List comprises a series of entries, with each ...