I inwardly smile when I hear the term “Unified Threat Management”. It means different things to different people, but to me it means consolidating the different “types” of security filtering, e.g.: ACLs Firewalling Stateful Inspection Deep Packet Inspection (whatever that is) Network Intrusion Detection Network Intrusion Prevention Application Security Filtering (Web, Database, etc.) …onto a single device. This…
Capturing Traffic Once and Making That Traffic Available to Multiple Tools
I’ve been obsessed with an idea for a while now of a networking and security tool that captures network data once and makes that data available to any kind of tool that asks for it. It’s not my idea; an buddy of mine named Eric, who I’ve since lost touch with, told me about it over lunch at…
Port Mirroring on a Cisco 3550 Switch
Just for reference… Source port(s): Switch# config t Switch(config)# monitor session 1 source interface fastethernet 0/1 Switch(config)# monitor session 1 source interface fastethernet 0/2 Switch(config)# monitor session 1 source interface fastethernet 0/3 Switch(config)# monitor session 1 source interface fastethernet 0/4 (however many you want to monitor) Destination port: Switch(config)# monitor session 1 destination interface fastethernet 0/24 …then exit…
Security: Cisco’s Going To Win
Why would I say this when their offerings thus far have been somewhat lackluster? Easy, they have the room to stumble. As long as they hold onto their infrastructure dominance they’ll remain in the ultimate postion as far as security goes. Ultimately, security is going to take place at dozens and hundreds of places in a corporate environment…
Security: How Network Ports Work
Many who are new to networking and security wonder what it means to have “ports” open on your computer. Some get rather anxious when an online port scan reveals that something’s open on their system. What follows is a silly, but hopefully memorable way for beginners to remember how nework ports work. Houses, Windows, and Midgets Imagine a…
My First 2600 Meeting
Last Friday I went to my first 2600 meeting. It was, of course, here in New York City — home of the original meetings. The group started small and grew to around 40, which the regulars said was a weak showing. We pushed through the awkwardness (which wasn’t helped by our being dressed in business attire) and were…
Tech-Infancy
I am going to be all over Windows 2K when it comes out, and from this point on I am going to take extreme notice of anything networking oriented at work. I am going to configure my home computer with WIN 2K and help to do all the computers at work with it too. I am going to…