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 ...

Most IT pros know that using Telnet to manage routers, switches, and firewalls is not exactly a security best practice. Instead, the accepted alternative to Telnet's lack of security is Secure Shell ...

Using quality of service (QoS) on Cisco network devices helps provide both bandwidth and priority to certain types of network traffic. In this edition of Cisco Routers and Switches, David Davis walks ...

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 ...

Previous articles (Part one, Part two) in this series on implementing VPN gateways using Cisco routers discussed the IPsec protocol and basic IPsec VPN connection models. Now we'll learn how to ...

When a Cisco router is initially configured, the router's DNS lookup function is enabled by default. This function is only useful if the router utilizes a DNS server on the network; otherwise, it will ...