Operating Systems

Operating Systems - Ubuntu Linux
All too often you need to find a specific file in Ubuntu. When I need to find files, the "search for Files" tool is usually inadequate for me. So I typically open up the Terminal and use the find command, which can be found to be a bit tricky to use, but powerful.
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How to Change the Default SSH port in Ubuntu

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Operating Systems - Ubuntu Linux
When I set up an Ubuntu server, I like to set set SSH daemon to a port to something other than the default of port 22. Changing the SSH port doesn't guarantee security for your Ubuntu server, but it does
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Windows Media Player Security Information Could Not Be Validated

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Operating Systems - Microsoft / Windows

Recently I was working on a computer using Windows Media Player when all of a sudden an error message popped up that said "windows media player security information from server could not be validated" and I couldn't hear the audio I was trying to listen to. Here is how to fix this issue:

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Operating Systems - Microsoft / Windows
The other day my boss called me into his office and said that he was getting lots of Security Certificate messages when he would go to various websites.
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How To Tell What Version of Ubuntu You are Running

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Operating Systems - Ubuntu Linux
Since I have several computers that run Ubuntu with different versions on them, there are times when I need to find out what version of Ubuntu it is running. One reason is to make sure that your Ubuntu upgrade did in fact take properly.
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