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Cisco IOS Software (22 results)
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- Monitor Cisco routers and switches using the IOS environment command
- How do you know if your remote router and switches are being cooled properly? Are the fans working? David Davis tells you how to see the environmental status of your Cisco routers and switches and how to be alerted when there is a hardware problem. by David Davis
- Blog posts 2008-08-01
- Get to know the Cisco IOS Feature Navigator
- David Davis tells you how the Cisco IOS Feature Navigator can help you find the information you need, including what features your current IOS image has, the differences between two IOS images, and whether your router can support the latest IOS. by David Davis
- Blog posts 2008-07-24
- How to view Cisco IOS ACL statistics
- David Davis shows you how to view ACL statistics and, with the help of a new feature in the Cisco IOS, how you can view these usage statistics per interface and per direction. by David Davis
- Blog posts 2008-07-17
- Configuring the Cisco 851W or 871W: Standard IOS
- This tutorial by George Ou and Justin James shows you how to set up an advanced SOHO configuration for the Cisco 851W router. by George Ou
- Blog posts 2008-07-03
- Five Cisco IOS tips to make you more efficient
- Keeping your Cisco equipment configured for optimal performance can be a time-consuming process. In this IT Dojo video, Bill Detwiler demonstrates five, time-saving tips for working more efficiently with Cisco IOS commands. by Bill Detwiler
- Blog posts 2008-06-30
- IT Dojo: Five Cisco IOS tips to make you more efficient
- Working with Cisco routers and switches is a part of almost every network administrator's job. Keeping your Cisco equipment configured for optimal performance can be a time-consuming process, but there are a few general rules that will make you a more efficient administrator. In this IT Dojo video, Bill...
- Videos 2008-06-30
- Understand the levels of privilege in the Cisco IOS
- The Cisco IOS actually offers 16 different privilege levels. David Davis discusses these different levels and introduces you to the main commands you'll need to configure these privileges. by David Davis
- Blog posts 2008-06-20
- 10 commands you should master when working with the Cisco IOS
- Becoming proficient with the Cisco IOS means learning some essential commands. This quick reference describes 10 commands you'll need to rely on when handling various configuration and troubleshooting tasks. by David Davis
- Blog posts 2008-06-13
- Troubleshoot Cisco routers and switches using the debug commands
- David Davis shows you how to get to the bottom of router and switch issues with Cisco's debug commands. Debug can give you a lot of detailed troubleshooting information, but watch out for the debug mistakes that can seriously affect your network. by David Davis
- Blog posts 2008-06-12
- What you need to know about Cisco IOS access-list filtering
- Let's face it, if you don't use Cisco IOS access lists ACL every day, they can be very painful to use. Why are ACLs so painful? Besides just being difficult to use, the penalty for mistake is huge. In one swift swoop, you could incorrectly permit malicious attackers onto your...
- Blog posts 2008-06-05
- Use the Cisco IOS archive command to archive your router's configuration
- Do you want to create archives of your configuration before every configuration change is made? What was the difference between the configuration you saved last year and the one you saved today? The archive command can help you answer these questions and more. Check it out. What is the...
- Blog posts 2008-05-29
- How to perform a Cisco IOS warm upgrade and reload to minimize downtime
- Recently, I wanted to upgrade my test router to the latest IOS. I had read about the new Cisco IOS warm upgrade and warm reload features, and I took this opportunity to test them out. By using these features, you can minimize downtime for your end users when you have...
- Blog posts 2008-05-22
- Cisco Security Advisory: Cisco IOS Secure Shell Denial of Service Vulnerabilities
- The Secure Shell server SSH implementation in Cisco IOS contains multiple vulnerabilities that allow unauthenticated users the ability to generate a spurious memory access error or, in certain cases, reload the device. The IOS SSH server is an optional service that is disabled by default, but its use is highly...
- White papers 2008-05-21
- Security researcher to unveil rootkit for Cisco routers
- Security researcher Sebastian Muniz of Core Security Technologies will be unveiling a malicious rootkit that he developed for Cisco's routers at the EuSecWest conference on May 22. Traditionally the domain of operating systems, rootkits are essentially malware that makes extraordinary efforts to hide themselves by subverting key...
- Blog posts 2008-05-15
- Filter ICMP traffic in the Cisco IOS
- The Internet Control Message Protocol ICMP is not TCP and it's not UDP. However, ICMP is critical to the functionality of any IP network, such as your corporate network or the Internet. While ICMP is required for IP network traffic redirection and pinging hosts on your LAN or WAN, ICMP...
- Blog posts 2008-05-15
- Cisco IOS Classic Firewall Stateful Failover High Availability Solution
- Stateful Failover for the Cisco IOS Firewall allows a router to continue processing and forwarding firewall session packets after a planned or unplanned outage occurs. A backup secondary router automatically takes over the tasks of the active primary router if the active router loses connectivity for any reason. This process...
- White papers 2008-05-01
- IINS - Implementing Cisco IOS Network Security
- Receive a $250 American Express® Rewards Card when you purchase this course on TechRepublic or ZDNet by May 31, 2008!View Available Dates and LocationsIn this course, you'll focus on the necessity of a comprehensive security policy and how it affects the posture of the network. You will learn to perform...
- Training 2008-05-01
- Learn more about what you can do with the Cisco IOS router command
- If you have configured dynamic routing on a Cisco router you have used the router command, but perhaps you haven't really looked at all the options that it offers. In this article, learn about the Cisco IOS router command, what it is, and how it can help you. Static...
- Blog posts 2008-05-01
- Learn to configure Cisco IOS NAT on a stick
- A well known NAT configuration is called "NAT on a stick." Besides having a funny name, NAT on a stick can be very useful to network administrators. In this article, learn what NAT on a stick is and how it can help you. What is Network Address Translation? ...
- Blog posts 2008-04-24
- Fundamentals: Five ways to secure your Cisco routers and switches
- Recently, Cisco Subnet blogger Brad Reese wrote the article, "Expert warns of scam to blackmail companies for cash to get back access to their Cisco routers." In that post, he wrote about hackers who manage to hijack a company's routers and then extort money from them by threatening to take...
- Blog posts 2008-04-03
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