TSTC offers more than 50 degrees and certificates in many different areas of study.

Use the Search or A-Z Listing to find exactly what career you want to explore.
Visit Our Facebook  Visit Our Twitter  Visit Our YouTube Channel  Visit Our Instagram  More Social Media
Computer Networking and Security Technology (CNST)
voice: 956.364.4635
fax: 956.364.5164
toll-free: 1.800.852.8784

Norma Colunga-Hernandez
voice: 956.364.4774
fax: 956.364.5164

  Mailing Address:
TSTC Harlingen
1902 Loop 499
Harlingen, TX 78550
The Computer Networking and Security Technology office is located in the George Young Engineering Technology Building next to the Student Center.
  Office Hours:
M-F: 8 a.m. - 5 p.m. Sat., Sun.: Closed







The focus of the CNST program is the implementation and protection of data system networks that are connected to the Internet.

Our mission is to train the future workforce of Computer Network Technicians, Network Security Administrators, and Cyber security experts. We accomplish this with classroom and laboratory instruction that includes a strong emphasis on hands-on labs to help develop a competent, skilled, and prepared workforce.


The CNST curriculum offers an Associates degree and a Certificate for students who desire to:

  • Obtain jobs in which computer network operations knowledge and skills are required
  • Specialize in the security controls required to safeguard digital/electronic infrastructures and in responding to computer security breaches
  • Continue an education path toward a bachelor or masters degree with a focus on computer networking and cybersecurity
  • Enhance existing knowledge and skills
For more information on the degree plans and courses required, see the AAS and Certifcate Degree Information

Hands-On Focus

Becoming competant in technology does not only come from theory -- It also requires practice and experience.

 Because of the hands-on nature of the program, our average class sizes are usually about 20 students or less. This provides you with an opportunity to spend more time on the network equipment, providing you with more hands-on experience.

Our classes meet 6 hours every week [2 hour blocks on MWF or 3 hour blocks on MW or TTH].

Having a small class promotes interaction between you and your instuctors, and fellow  classmates -- providing a more stimulating learning environment.

In our program you will gain the skills/knowledge required to prevent, defend, detect, and respond to cyber attacks and threats.

You will also learn how to install and configure network devices (switches, routers, firewalls, wireless routers, access points, cabling), end-user workstations/ devices, and network servers that control, monitor, or provide user services on internal or external networks.

You will learn how to set up Peer-to-Peer Networks for a home or small office, and small/medium business networks based on a client/server architecture.  In the capstone course, you will work with a group to design and build an entire network using the skills and knowledge gained in previous courses.


Our program faculty is committed to and dedicated to helping you complete your academic, career, and personal goals. Our faculty members bring a wealth of talent to our classrooms with industry experience, industry recognized certifications, and prior experience as technical trainers.


We hope that this website proves to be a useful aid for you in determining if our program is the right fit for you and your career goals.  If you have any questions regarding our program, or would just like to “talk technology” with us, please contact us at cnst.harlingen.tstc.edu or stop by for a tour of our facilities.

Sincerely,  Your CNST Faculty


1 Expand cyber education.The Comprehensive National Cybersecurity Initiative; Initiative #8. http://www.whitehouse.gov/issues/foreign-policy/cybersecurity/national-initiative

2 Kaspersky Lab makes its forecasts for the coming year,  Kaspersky lab, 12 Dec 2013, http://www.kaspersky.com/about/news/virus/2013/Kaspersky-Lab-makes-its-forecasts-for-the-coming-year, accessed 3/20/2014 12:12 PM

3 2014 Cybersecurity Forecast, ITBusinessEdge, http://www.itbusinessedge.com/slideshows/2014-cybersecurity-forecast-05.html, accessed 3/20/2014 12:14 PM

4 Tony Bradley, PC World, The top 5 security threats to watch for in 2014, Jan 30 2014, http://www.pcworld.com/article/2092226/the-top-5-security-threats-to-watch-for-in-2014.html, access 3/20/2014 13:16 PM

5 William Jackson, Government Computer News (GCN) Cyberthreats for 2014: Not just the usual suspects, Dec 11 2013, http://gcn.com/articles/2013/12/11/cybersecurity-threats-2014.aspx, accessed 3/20/2014 12:19 PM

Texas State Technical College Homepage Link Texas State Technical College Homepage Link Request Information En Espanol