David Davis294

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 (SSH). Learn how to configure SSH on your Cisco router. David Davis has the details.

Locating the right piece of information from a Cisco router can often be a challenge. Particularly, the show running-config command can return pages and pages of output. David Davis introduces you to some filtering options you can use to find the information you need more quickly.

When it comes to routing protocols and routes, administrative distance and metrics are two important factors. What exactly do these numbers mean? David Davis introduces you to these two factors and explains why administrators working with Cisco routers need to understand their significance.

Many administrators forget—or don’t even realize—that they can configure Dynamic Host Configuration Protocol (DHCP) on Cisco IOS routers and switches. David Davis discusses the pros and cons of this option, and he walks you through the configuration process.

Command schedulers allow you to run commands, or a sequence of commands, once or on a recurring calendar. Learn how you can use the Cisco IOS command scheduler to back up your router’s running configuration to the startup configuration on a regular basis.

Internet access is becoming more and more critical for handling everyday business. To ensure Internet redundancy and optimum performance, organizations may want to consider implementing BGP multihoming to different ISPs.

Routing protocols have far-reaching effects on the performance and reliability of your network, but sorting out the differences between them can be a challenge. Choose the best one for your network by taking a look at this detailed comparison.

Why network address translation (NAT) on an Internet router keeps the VPN client from making the connection