dave.frop.net

I am trying to form a Linux User Group at the University of Texas at Arlington. So far the LUG at UTA has gained serveral initial members, elected officers, ratified a constitution and now we are awaiting approval from the Student Governance Office to be an official student organization.

Here is a post I recently made on the FWLUG forum which I am reposting here. It explains how to make a simple budget with OpenOffice.org Calc. This example would probably work in any spreadsheet program you care to use.

This month I gave a presentation to the FWLUG about using openvpn.

Read more to see the video.

I made another presentation to the Fort Worth Linux User group this month. This time I gave an introduction to drupal. Read more to watch it.

I gave a presentation at the Fort Worth Linux Users Group this month on network exploration with open source tools. It is a brief introduction to using tools like wireshark and nmap to explore the network.

Read More to watch the screencast video.

So you've got some scanned pages or images in some format like PDF or jpg and you want to find all the blank ones.

You can use imagemagick to do this. This solution should be able to handle variations in page color, page noise, etc.

Here is how to do it in the shell.

Here's a list of firefox add ons that give alot of control back to the user.

User Agent Switcher

https://addons.mozilla.org/en-US/firefox/addon/59

Yout browser identifies itself to a webserver with each page that it fetches. Sometimes a web server may deny or grant your request based on this useragent string. A site may choose not to "support" a certain browser or it may let googlebot see its pages without logging in.

In Windows everyone knows how to change the icon for a shorcut, but if you want to change the icon that appears on the taskbar, and while switching tasks you need something that can change the icons embedded in the executable.

Skip all those little shareware programs (that probably contain spyware anyway) and just download resource hacker. It lets you find the icon resources and replace them with the icons from another .exe easily.

I wanted to add the same dynamic email signature to all the email I send whether it is from my cellphone or from my computer.

My email client at home (mutt) makes it easy to take the output of a script and use it as a sig, but my cell phone can't do anything like that.

I just configured my qmail to replace a tag in mails from me with my signature. Qmail's modular design makes it easy to overload certain parts of it.