Author Archives: TCAT Shelbyville IT Department

About TCAT Shelbyville IT Department

The Tennessee College of Applied Technology - is one of 46 institutions in the Tennessee Board of Regents System, the seventh largest system of higher education in the nation. This system comprises six universities, fourteen community colleges, and twenty-six Applied Technology Colleges.

High Resource Utilization – It could be your memory compression

Have you noticed high resource utilization?  CPU, Memory or Disk at 100%? Of course this could be malware, a virus, a startup app or program. It could also be memory compression. Windows 10 offers memory compression which takes little-used elements … Continue reading

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Computer not responding? Restart your graphics driver

Computer not responding? Restart your graphics driver by using the following shortcut keys- Win+Ctrl+Shift+B It’s not always Ctrl+Alt+Del …

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An interview with Fabian Wosar, EMSISOFT’s ransomare killer

Fabian Wosar, CTO of EMSISOFT is known as the most prolific ransomware killer in the world.   We reached out to Fabian and asked him ten questions. Look for our Live Interview and video late next week… Steve: You’re the cybercriminal…Create … Continue reading

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Posted in Computer Security, Education, Hacking, Information Technology, Internet of Things, internet security;, IoT, Linux, Mac, malware, Microsoft, ransomware, Technology, viruses, Windows Security | Tagged , , , , , , | Leave a comment

Need to optimize and check a MySQL database on Windows?

Need to optimize and check a MySQL database on a Windows computer? Open a command prompt as an administrator. Change into the folder where your MySQL is located. An example is below – type cd\Program Files\MySQL\MySQL Server 5.7\bin Hit enter … Continue reading

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Moodle 3.7+ Notifications – Cron failed to run in 200 seconds

If you receive “Cron failed to run in 200 seconds, you can write a batch file and place the batch file in a folder under c: drive (name the folder cron).  The script below is if you are running Moodle … Continue reading

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CLI vs GUI – Basic CLI commands

The CLI or Command Line Interface, is a text-based interface used to program devices such as switches and other network equipment.  So it’s 2019.  Why are we still using a CLI? The reason? It allows a granular ability to program devices … Continue reading

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2019 Middle Tennessee Cyber Conference Agenda

The TN Department of Safety and Homeland Security along with TCAT Shelbyville and the Cyber Conference committee are working on the 2019 Middle TN Cyber Conference agenda.  Look for speakers such as Jayson E. Street (http://jaysonestreet.com/), Brent White of We … Continue reading

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Posted in Computer Security, Computers, Education, higher ed, higher education, Information Technology, internet security;, Technology | Tagged , , , , , , , , , , , | Leave a comment

2019 Middle TN Cyber Conference

Register now for the 2019 Middle Tennessee Cyber Conference – Register Now

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Posted in Computers, Information Technology, network, Networking, Technology, Windows Security | Tagged , , , , , | Leave a comment

Rockwell Directory Configuration Wizard Unknown Error 0x80005000

Have the above error?  Copy and paste this in a command prompt as administrator.   This will work a majority of the time.   This configuration error re-registers the dlls that may have issues during or after an upgrade. cd\ … Continue reading

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what3words – Did you know the world has been divided into 3m x 3m squares?

The world is divided into a grid of 3m x 3m squares and each grid is assigned a unique 3 word address. Because most of the world is not addressed, you can locate any place on the planet by three … Continue reading

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Error Writing to Database – Moodle after an upgrade

If you get an error on Moodle that states “Error Writing to Database” generally when logging on, that WAS working prior to upgrading, clear or purge the Moodle Cache.  Generally when you shutdown Apache or IIS to upgrade, the sessions … Continue reading

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Cannot connect to Microsoft SQL server after installing an IIS SSL Certificate

If you cannot connect to your Microsoft SQL Server after installing a web SSL Certificate, you may need to get the thumbprint of your certificate and copy it (without spaces) to your registry. Go to Hkey_Local_Machine\software\Microsoft\Microsoft SQL Server\{Find your instance … Continue reading

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AlphiMAX PTP Estimator provides an excellent way to align your wireless antennas

When you are networking computers, wireless access points, printers and other nodes in multiple rooms, try to avoid daisy-chaining switches or using small 4-8 port switches when you are in a hurry.  Replace any hubs on your network as soon … Continue reading

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Wireless Dropping? Change your Scan Valid Interval

Is your Wireless dropping?  Update your driver of course and then try changing your Scan Valid Interval.   By default, most wireless cards are set to 60.   This is the amount of time before your wireless ‘looks’ for other … Continue reading

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Posted in Home Networking, Networking, Technology, Wireless | Tagged , , | 2 Comments

AlphiMAX PTP Estimator provides an excellent way to align your wireless antennas

It is important to perform a wi-fi survey so that you can determine not only the perfect place to locate your access point or bridge but to gain an understanding of the channel co-existence challenge you may face.  With wireless … Continue reading

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Atheros Wireless Drivers

Need an update and stable version of your Atheros Wireless Drivers? Often the wireless drivers found at,  https://www.atheros-drivers.com/atheros-network-drivers.html  , are more stable than the manufacturer.

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Posted in Technology, Wireless | Tagged , , | 2 Comments

Should you disable 8dot3 for performance and security?

icrosoft did recommend to disable short names  in a security guide some times back.  There is evidence that file operations in directories (folders) that contain a large number of file can be slowed by short file name creations.  So does … Continue reading

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Posted in Technology, Windows, Windows 10, Windows 10 Quick Tips, Windows Server | Leave a comment

Slow SQL Connection or Network in Windows 10 – Update

Finally found a small problem with Windows 7, 8, 8.1 and 10.  After upgrading, we have discovered that Windows  was responding slow to our SQL Server 2008 and SQL Server / other versions.  What we discovered is below. Slow response … Continue reading

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Posted in Information Technology, Microsoft, Microsoft Windows, Microsoft Windows 10, network, Networking, Technology, troubleshooting, Windows, Windows 10 Quick Tips, Windows Server | Tagged , , , | Leave a comment

Seizing the Operation Master Roles in Windows Server – RID issues

How to repair AD in this state (object can’t be created -users/other) command prompt (admin) – Type the following… ntdsutil roles connections connect to server quit seize schema master seize naming master seize RID master seize PDC seize infrastructure master … Continue reading

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Is your SSD or HDD dirty?

You can of course use the Windows GUI to check your SSD or HDD.  But did you know that you should check your drives by typing the following (you can copy and paste in a elevated command prompt and change … Continue reading

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Posted in computer troubleshooting, Computers, Microsoft Windows 10, Technology, troubleshooting, Windows, Windows 10, Windows 10 Intel Drivers, windows 10 privacy, Windows 10 Quick Tips, Windows Server | Tagged , , , | Leave a comment