Port forwarding and NAT loopback on Zyxel USG20

The Zyxel USG20 is a complicated router.  As I mentioned here it is a wonderful router for a highly connected household if you desire content filtering and bandwidth management. But this router isn’t for the feint of heart. Port forwarding on a traditional consumer is as simple as assigning a static internal IP address to a device, then forwarding ports to that IP address.  (A few routers...
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Internet security and traffic management

Like many of you, we have a bunch of devices connected to our home internet connection.  A couple phones, tablets, laptops, a game console, TVs, etc.  And more wifi devices keep coming!  (You can get WiFi enabled thermostats and light bulbs now!)  You need a fairly robust router just to manage traffic with all of these devices connected and if you have kids like I do, you need a way to manage...
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Replacing the VHF/UHF final transistor in a Yaesu FT-857D

What does this have to do with computer repairs? Well, it doesn’t, technically, but I am also a casual ham radio operator and recently the VHF/UHF final transistor in my radio blew. So what happened?  I bought a 2 meter amplifier off of eBay and while I was testing it my radio stopped triggering the amp.  I measured the power output from my Yaesu FT-857D and it showed less than 1 watt on 2...
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What is the big deal with JAVA?

Java has had a lot of press lately. So what is going on? Java has been around since nearly the beginning of the internet. It is a powerful platform and most users know of it as a plugin for their web browsers. It is a lot more than just a plugin, but we are only going to discuss it as a plugin for your web browser? By default, your web browser (Internet Explorer, Firefox, Safari, Opera, Chrome,...
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Now accepting credit cards!

Just wanted to let you know that we are now accepting all major credits for payment! (Cash and check are still accepted too!)
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