free

Weather & Information Images (WX-IMG)

Sunday, December 27th, 2009
by W8JKC

I have updated my WX-IMG products and have included the WWV image in this release.
To add these images to your site please see http://www.w8jkc.com/copythis.php?q=1
You are free to add them to your website, Facebook, MySpace or similar profile, including web signatures.

Also included in this release is my simple email address spam blocking image script. It is very simple to add to any page, but requires basic knowledge of HTTP URL structures. However it is explained completely on the page linked above.

I have changed the methodology behind the Weather Spotter Image too, it used to refresh the data every time the image was accessed or loaded, which means every time somebody viewed a page that had that image in it, the information would be retrieved again. This works great, however now that more people are using that image I am using way too much bandwidth and I am sure the NWS and NOAA did not appreciate me requesting the information so many times. This is especially true because they usually only update the information once every 24 hours (around 6am). I have changed this to only request and update every 7 hours, which means 3 updates per day. Currently the update times are (EDT) 0700, 01400, and 2300hrs each day. I believe this is the most effective use, because we have had some afternoon and some evening storms.

If you have any questions or concerns you may email me at:
or you may simply leave a comment below.

How to Protect your Computer for Free

Saturday, April 11th, 2009
by W8JKC

I always hear the same question from my friends and family, \”How do I protect my computer from viruses and spyware…?\” or it\’s variant \”What is the best virus scanner or spyware program…?\”

While I can\’t tell you exactly which is the best software to suit your needs, I can recommend the software that I use on a daily basis with My Windows Vista /Ubuntu 8.10 (dual booted) laptop.

On the Windows side, I have installed and use 2 programs to protect from viruses and spyware. The first one which protects from all sort of attacks and malicous software is called AVG Free. This program is developed by a company called AVG Technlogies (formerly Grisoft). To download see here or skip directly to the Windows download here.
I have used AVG on all my computers for the last 3 years with no problems since I installed it. Before AVG I had used either McAfee or Norton depending on which computer I was on and after installing it, I found that the previous program failed to detect some spyware and even a couple viruses on 2 occasions.

The second program I use is a firewall to block all malicous connections to and from my computer. This program is called Comodo Internet Security and it is developed by a company called Comodo Security Solutions. While the benefits of using this program are numerous, the down side is that after you install it, most if not all of your normal everyday programs have to be \”trained\” into Comodo so that it does not block them from accessing the internet or your files. This is fairly easy to do, as it will pop up on your screen, but it may get annoying for the first 2 weeks of using Comodo. During the setup of Comodo you have 3 options to choose from. The first is install the firewall only, the second is install the AntiVirus only, and the third is to install both. I chose firewall only, but feel free to choose any of them but keep in mind that it may give you errors and conflicts with AVG. See the Comodo site here or skip directly to the Windows download here.

When in Ubuntu I also use AVG, they have a version for linux and other operating systems.

To protect my whole network, my DSL modem is directly connected to a Smoothwall Linux Firewall/Router box. This helps protect the whole network with IDS, ICMP blocking, and many other features, It even allows URL, MAC, IP, and many other blocking options for outgoing connections.

If you have any questions or comments, please feel free to submit them below, or you can email me justin@helin_w8jkc.com.
I would love to hear what programs you use, and why you use them.