Geek Jokes and Trivia

A tcp packet walks in to a bar and says “I want a beer”, barman says “you want a beer?” and tcp packet says “yes, a beer”
A udp packet walks in to a bar and says “I want a beer”

Teredo tunneling is Microsoft's implementation for IPv6 over IPv4. The Teredo navalis is a species of saltwater clam also known as the naval shipworm that destroy submerged wood.


There is no real rhyme or reason to this page. It is just a list of quotes I have seen and liked.

I am a great believer in luck, and I find the harder I work, the more I have of it. -Thomas Jefferson

In ancient times cats were worshipped as gods; they have not forgotten this. - Terry Pratchett

When Thomas Edison worked late into the night on the electric light, he had to do it by gas lamp or candle. I'm sure it made the work seem that much more urgent. - George Carlin

SANS Cheat sheets

The SANS Institute provides some of the best security training in the industry. Many of their classes include the so called "Cheat Sheets" which are short documents packed with useful commands and information for a specific topic. I have linked as many as I am aware of below.

Most of these will require a login to the SANS website. Accounts are free.

Intrusion Discovery Cheat Sheet for Windows

Intrusion Discovery Cheat Sheet for Linux

Useful Scripts

Active Directory

Active Directory Audit Report With Powershell - This appears to be a rather thorough AD reporting script created by Zachary Loeber.

Useful Links

Below are several links I have found useful.

Active Directory

Active Directory Maximum Limits - Scalability
Post-Graduate AD Studies (Numerous links to advanced Active Directory topics)
MCM: Core Active Directory Internals (Deep dive into Active Directory structure that helped me understand the databases a bit better)

An inexpensive method of backing up an SMB to the cloud

First let's get some assumptions out of the way.

  • This is geared toward a relatively well connected organization. What well connected means will greatly depend on the size of the organization but for a relatively small company with maybe a few hundred GB of storage that you want to backup online a business class cable connection will probably meet the bandwidth requirements but DSL or T1 will not. The quality (downtime etc.) is actually much less important than the raw amount of data you can upload.
  • I implemented a solution in an environment I previously worked in and it worked well. Watch the caveats I add throughout the document. They are from experience.
  • This is very much a low tech low cost solution.

Hyper-V Backups using built in Windows tools

At work we have decided to backup some of our Hyper-V servers to disk using the built in Windows 2008 tools and then back that up to tape for rotation. You will find instructions for this process in this article.

Enable VSS on the Hyper-V server

Install Windows Server Backup (WSB) feature

start /w ocsetup "WindowsServe Backup"

Edit the Registry

From command line:

reg add "HKLM\Software\Microsoft\Windows NT\CurrentVersion\WindowsServerBackup\ApplicationSupport\{66841CD4-6DED-4F4B-8F17-FD23F8DDC3DE}"

How to Suck at Data Backups

This is presented in the same vein as Lenny Zeltser's How to Suck at Information Security.  If you have not read Lenny's article it is highly recommended.

What makes a good backup solution? (1 fo 4)

What makes a good backup solution?
Part 1 of 4
Critical Elements of a Backup Plan

Excuses for not doing the easy security

For as long as I would say that I truly understood computer security I have believed that security in depth is one of the most important elements of security. Coming from this perspective I often find it interesting how many relatively easy elements are not implemented by practitioners. Some of these are the same practitioners that will go to extraordinary lengths in other areas to secure their systems.

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