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Destroying a Cisco Switch with CDP Flooding

Destroying a Cisco Switch in 5 minutes

This is an easy Denial of Service (DoS) attack to launch.  We’re going to use the Cisco Discovery Protocol (CDP) to bring a switch to its knees.  It literally only took me 5 minutes to completely destroy this enterprise class

Posted in Hardware, What Is Tagged with: ,

Crypto Hypno: Cryptography basics (Part 5 of 5)

Crypto Hypno

Ahh the refreshing scent of cryptography.  It’s like a fresh rose on valentines day. In my last post you learned about VPNs.  I showed you the nitty gritty itty details about the protocol and both phases (hopefully you didn’t phase out

Posted in Linux, Mac OS X 10.10 Yosemite, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks, What Is, Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Vista, Windows XP Tagged with: , , ,

Wireshark 301: Finding the busiest computers on your network

Wireshark Advanced

Network Latency is a big issue but how do you find the busiest computers on your network? With Wireshark, it’s super easy.  Let’s not waste any time!

Posted in Linux, Mac OS X 10.10 Yosemite, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks, What Is, Windows, Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Vista, Windows XP Tagged with: , , ,

Wireshark 300: Curing Latency and Network Slowness

Wireshark Level 2

Laaatteennncyyyyy. AKA SLOWNESS!  No one wants to deal with it but how many of us know the root cause of the problem?  With Wireshark you can figure out exactly what’s causing your internet connection to crawl.

Posted in Linux, Mac OS X 10.10 Yosemite, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks, What Is, Windows, Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Vista, Windows XP

Networking 210: All about Routing (Part 3 of 3)

Networking 210: Routing

In the last guide we talked about Dynamic Routing protocols and in this one one we’ll finish up with OSPF and EIGRP.

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