Password Recovery – Cisco IOS Routers

 

In this post I want to cover how to recover passwords on a Cisco IOS Router. This is helpful in lab environments as well as production environments. Although this method can be used the correct “legal” way you can also use this method to break into these devices “illegally” if you have physical console access to the device. However to get into it physical power must be turned off first causing a disruption in the environment, let get started! Continue reading “Password Recovery – Cisco IOS Routers”

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Basic Cisco ASA Overview

The Cisco 5500 Series Adaptive Security Appliances are of course an excellent firewall but the ASA also offers (depending on the model) other security services as well, like IPS systems, VPN, content security, unified communications and remote access. These ASA’s can be used as a standalone appliance’ that can handle the need for branch offices to enterprise data centers. Or they can be included in high-performance blades that work together with the Cisco Catalyst 6500 Series, and recently new they can also run in a virtual instance which provides tenant isolation for public and private clouds! For now let’s focus on the basics of the ASA like the ASDM. Continue reading “Basic Cisco ASA Overview”

Color Code Your Routers

I came across an interesting idea, what if you could color code your devices in command line? So such as if you were operating routers at a core level you could color code the CLI to the color red, and the branch routers green and etc. I wasn’t sure if this would possible but doing some searching through the internet I found a guy Ivan Pepelnjak who wrote how to do this  a couple years ago and wrote a couple books as well, check out his blog/website at http://www.ipspace.net there is tons of helpful information along with his original guide hereContinue reading “Color Code Your Routers”

How to Configure SSH on Dell Power-Connect

Although not dealing with Cisco directly Dell switches are around in network closets and with my limited experience with them I thought this would be a perfect blog post to show the differences between Dell and Cisco. I like to think of Dell CLI like a dumb downed version of the Cisco CLI so I had some time to play around with a Dell 6248P switch and wanted to figure out how to get SSH working in the thing. Couple searches around the web and some guess and check methods I was able to get SSH working and disable telnet sessions from connecting to the switch. Compared to a Cisco switch dell has few commands when configuring SSH. This switch was configured with an IP address and user name and passwords before I touched it but I don’t think would too hard to figure out. 🙂 Continue reading “How to Configure SSH on Dell Power-Connect”