Mark's Notebook

My sketchbook, code and other things I'm working on.

May 9, 2006 - 3 minute read - Comments - Information Security

Where are your realy going today?

I found this great webpage testing tool called Paros. You configure it as a proxy server
and it records every connection your browser makes. It is used to debug websites. I used
it to monitor what my browser was doing and I was quite suprised.

As an experiment I went to five website I visit regulary.  

    www.google.com          – Search
    www.yahoo.com           – search
    www.kfor.com              – local news
    www.myspace.com       – Watching my child
    www.classmates.com    – My wife’s 30th reunion

I was expecting two or three hits pre URL.  It’s is common for sites companies to have
more then one web server for their site. Some system hold graphics while others monitor
your access. I was supprised to see my clicks are ten to one. I accessed ten sites for
every url I went to.

May 8, 2006 - 2 minute read - Comments - Personal News

Proof of Bigetlexia

What is Bigetlexia.� Bigitry about people with trouble reading and spelling. I’ve written may times about how people don’t understand dyslixics . If you are dyslexic you are just considerd stupid and most of the time it’s the smart educated people that are the wrost. �Today I heard a great storie on NPR that supports my issue. It was about how many words are in the English language? 500,000? 1 million?

Apr 21, 2006 - 3 minute read - Comments - Information Security

The Apache Keep-Alive Tarpit Exploit

I have found a denial of service (DOS) exploit problem with the Keep-Alive setting in Apache version two. This may exist in other version as well. What I’ve found is, with Keep-Alive off, Apache will continue to serve content. While, with Keep-Alive on a simple script can use up every connection on a server and block other users. Here is the test I used. 1) turn on server-status 2) check the setting – KeepAlive on

Apr 11, 2006 - 1 minute read - Comments - Public Interest

Welcome European Union

If you reached here through www.grennan.eu WELCOME! I have registered my name in the European Union for my friends. If your last name is Grennan and you would like email at grennan.eu just email me at mark@grennan.com and I’ll give you your own email address. I can either create a forward for you, or I can give you a mail box at www.grennan.com/webmail. People use to say the Internet would isolate people.

Apr 3, 2006 - 2 minute read - Comments - Personal News

Nathan moves to Silicon Valley

Suturday July 1st (2006) is Apple‘s 30th Anniversary. Happy birthday Apple. So, this is also my 30th year in the computer business.� Thirty years ago I was working for KA Electronics in Dallas Texas as a stock boy and I was going to Devry learning electronics. I remember reading Popular Electronics and wishing I had the money to order an Apple 1. Later it was my work with the Apple II that launched my carrier in computers.

Apr 1, 2006 - 1 minute read - Comments - Iva's Poems

Iva’s Poems – Page 4

This poem was writen my Iva for Fother’s day. � Ever Lasting Love On Father's day, I send no card, I left my face toards my Loard. Then I talk to Him, and Daddy too, God called him home and left me blue. Tho time has passed since he went away, I miss him more and more each day. His guiding had was so much help, I follow his foot prints step-by-step.