Linux Unix Training Classes in Columbia, Missouri

Learn Linux Unix in Columbia, Missouri and surrounding areas via our hands-on, expert led courses. All of our classes either are offered on an onsite, online or public instructor led basis. Here is a list of our current Linux Unix related training offerings in Columbia, Missouri: Linux Unix Training

We offer private customized training for groups of 3 or more attendees.
Columbia  Upcoming Instructor Led Online and Public Linux Unix Training Classes
Enterprise Linux System Administration Training/Class 21 September, 2026 - 25 September, 2026 $2190
HSG Training Center instructor led online
Columbia, Missouri 65201
Hartmann Software Group Training Registration
Linux Fundaments GL120 Training/Class 14 September, 2026 - 18 September, 2026 $2250
HSG Training Center instructor led online
Columbia, Missouri 65201
Hartmann Software Group Training Registration
Linux Troubleshooting Training/Class 31 August, 2026 - 4 September, 2026 $2290
HSG Training Center instructor led online
Columbia, Missouri 65201
Hartmann Software Group Training Registration
OPENSHIFT ADMINISTRATION Training/Class 19 October, 2026 - 21 October, 2026 $2090
HSG Training Center instructor led online
Columbia, Missouri 65201
Hartmann Software Group Training Registration
OpenShift Fundamentals Training/Class 5 October, 2026 - 7 October, 2026 $2250
HSG Training Center instructor led online
Columbia, Missouri 65201
Hartmann Software Group Training Registration
RED HAT ENTERPRISE LINUX AUTOMATION WITH ANSIBLE Training/Class 9 November, 2026 - 12 November, 2026 $2735
HSG Training Center instructor led online
Columbia, Missouri 65201
Hartmann Software Group Training Registration
RED HAT ENTERPRISE LINUX SYSTEMS ADMIN I Training/Class 20 July, 2026 - 24 July, 2026 $2250
HSG Training Center instructor led online
Columbia, Missouri 65201
Hartmann Software Group Training Registration
RED HAT ENTERPRISE LINUX SYSTEMS ADMIN II Training/Class 27 July, 2026 - 30 July, 2026 $1890
HSG Training Center instructor led online
Columbia, Missouri 65201
Hartmann Software Group Training Registration
Docker Training/Class 17 August, 2026 - 19 August, 2026 $1690
HSG Training Center instructor led online
Columbia, Missouri 65201
Hartmann Software Group Training Registration
ANSIBLE Training/Class 10 August, 2026 - 12 August, 2026 $1990
HSG Training Center instructor led online
Columbia, Missouri 65201
Hartmann Software Group Training Registration
DOCKER WITH KUBERNETES ADMINISTRATION Training/Class 28 September, 2026 - 2 October, 2026 $2490
HSG Training Center instructor led online
Columbia, Missouri 65201
Hartmann Software Group Training Registration
KUBERNETES ADMINISTRATION Training/Class 24 August, 2026 - 26 August, 2026 $2490
HSG Training Center instructor led online
Columbia, Missouri 65201
Hartmann Software Group Training Registration

View all Scheduled Linux Unix Training Classes

Linux Unix Training Catalog

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DevOps Classes

cost: $ 1690length: 3 day(s)
cost: $ 1690length: 3 day(s)

Foundations of Web Design & Web Authoring Classes

cost: $ 1290length: 3 day(s)
cost: $ 790length: 2 day(s)
cost: $ 1190length: 3 day(s)

Java Programming Classes

cost: $ 1390length: 3 day(s)
cost: $ 1390length: 3 day(s)

Course Directory [training on all levels]

Upcoming Classes
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Blog Entries publications that: entertain, make you think, offer insight

A business rule is the basic unit of rule processing in a Business Rule Management System (BRMS) and, as such, requires a fundamental understanding. Rules consist of a set of actions and a set of conditions whereby actions are the consequences of each condition statement being satisfied or true. With rare exception, conditions test the property values of objects taken from an object model which itself is gleaned from a Data Dictionary and UML diagrams. See my article on Data Dictionaries for a better understanding on this subject matter.

A simple rule takes the form:

if condition(s)

then actions.

An alternative form includes an else statement where alternate actions are executed in the event that the conditions in the if statement are not satisfied:

if condition(s)

then actions

else alternate_actions

It is not considered a best prectice to write rules via nested if-then-else statements as they tend to be difficult to understand, hard to maintain and even harder to extend as the depth of these statements increases; in other words, adding if statements within a then clause makes it especially hard to determine which if statement was executed when looking at a bucket of rules. Moreoever, how can we determine whether the if or the else statement was satisfied without having to read the rule itself. Rules such as these are often organized into simple rule statements and provided with a name so that when reviewing rule execution logs one can determine which rule fired and not worry about whether the if or else statement was satisfied. Another limitation of this type of rule processing is that it does not take full advantage of rule inferencing and may have a negative performance impact on the Rete engine execution. Take a class with HSG and find out why.

Rule Conditions

As much as we love to assume free Wi-Fi is secure, this is far from the truth. Because you are attaching to a service many others are connected to as well, without security measures, your device can be hacked, especially if the network is unencrypted. Because this encryption involves handing out a 26-character hexadecimal key to every individual wanting to use that network, most places opt for ease of access over security. And even with a secure network, your information is vulnerable to everyone else who has the password and is on the network.

This may not seem like such a big deal and many people don’t believe they have anything to hide on their personal devices, but remember what you use on those devices. Chances are your e-mail is attached as well as all other social media sites. You may have apps that track your finances or private messages to certain others that you would never want anyone else to see. Luckily, there are steps that can be taken to reduce and prevent any unwanted information grabbers from accessing your personal information.

To start, go through your computer’s settings in order to verify your operating system’s security functions are all set to offer the highest protection. Open up the Control Panel and double check that your Firewall is enabled for both private and public networks. Then, go to Network and Sharing to open Change advanced sharing settings. In here, you can turn off file and printer sharing and network discovery for public networks.

One of the most important things to watch for is HTTPS. Hypertext Transfer Protocol Secure ensures secure communication across the web. Many of the major email systems use this when you log in (as another layer of password protection) but drop the security as soon as the login is complete. To keep this going, HTTPS Everywhere is a browser extension that gives you a secure connection when browsing some of the more popular sites. It can also be programmed for other sites you like to visit that don’t use HTTPS.

Not every place on the internet provides the choice of HTTPS, and VPNs are there to fill in the security gap. Virtual Private Networks allows data to be sent and received through public access points as if it were directly connected to a secure network. Many businesses offer this for company devices, but if you are an individual looking for that kind of security, ProXPN is a free version that can be upgraded. Unfortunately, it limits your speed, but other choices include VPNBook, OpenVPN Shield Exchange, and OkayFreedom.

With these three steps implemented, secure public Wi-Fi can be achieved. No longer will you have to worry about connecting in an unsure environment with strangers, never knowing if your information is being stolen. With all of the options free of charge, it is also an affordable means of protecting yourself that only takes a little time and effort to implement and guarantee safety.

 

In Demand IT Skills

Password Management Tools

Net Neutrality for the Layperson

What are a few unique pieces of career advice that nobody ever mentions?

The iconic software company that is based in King County Washington has been getting almost universally slammed from it's recent Los Angeles press announcement about its entry into the hardware business with the convertible laptop/tablet known as Surface.

Certainly I can see the point that it is now competing with its hardware vendors/partners. Intel has done a good job in the arena creating 'reference designs' without competing with its partners.

There is another viewpoint which seems to be ignored. The cold facts are Microsoft is a public company. This puts Microsoft in a legal position of doing the most it can to return value to its shareholders. Failure to do so means somebody is going to jail.

Microsoft has a vision, which at the end of the day is, a certain way to get enough people to see enough value to hand over their money, to fulfill their fiduciary duty.

Communication is one of the main objectives that an organization needs to have in place to stay efficient and productive. A breakdown in accurate and efficient communication between departments at any point in the organization can result in conflict or loss of business.  Sadly, the efficiency between different departments in an organization becomes most evident when communication breaks down. As an example, David Grossman reported in “The Cost of Poor Communications” that a survey of 400 companies with 100,000 employees each cited an average loss per company of $62.4 million per year because of inadequate communication to and between employees.

With the dawning of the big-data era and the global competition that Machine Learning algorithms has sparked, it’s more vital than ever for companies of all sizes to prioritize departmental communication mishaps. Perhaps, today, as a result of the many emerging markets, the most essential of these connections are between IT and the business units. CMO’s and CIO’s are becoming natural partners in the sense that CMO’s, in order to capture revenue opportunities, are expected to master not just the art of strategy and creativity but also the science of analytics. The CIO, on the other hand, is accountable for using technical groundwork to enable and accelerate revenue growth. Since business and technology people speak very different languages, there’s a need on both sides to start sharing the vocabulary or understanding of what is expected in order to avoid gridlock.

In the McKinsey article, Getting the CMO and CIO to work as partners, the author speaks to five prerequisite steps that the CMO and the CIO can take in order to be successful in their new roles.

--- Be clear on decision governance
Teams should define when decisions are needed, what must be decided, and who is responsible for making them.

Tech Life in Missouri

Missouri, known as the “Show Me State”, has a growing science and biotechnology field. One of the largest gene companies, in the U.S. Monsanto, is based in St. Louis. The higher education system is governed by the Missouri Department of Education and includes 13 four-year universities and 20 two-year colleges.
If a little knowledge is dangerous, where is the man who has so much as to be out of danger?  ~Thomas Henry Huxley
other Learning Options
Software developers near Columbia have ample opportunities to meet like minded techie individuals, collaborate and expend their career choices by participating in Meet-Up Groups. The following is a list of Technology Groups in the area.
Fortune 500 and 1000 companies in Missouri that offer opportunities for Linux Unix developers
Company Name City Industry Secondary Industry
Patriot Coal Corporation Saint Louis Agriculture and Mining Mining and Quarrying
Solutia Inc. Saint Louis Manufacturing Chemicals and Petrochemicals
Monsanto Company Saint Louis Agriculture and Mining Agriculture and Mining Other
Kansas City Power and Light Company Kansas City Energy and Utilities Gas and Electric Utilities
The Laclede Group, Inc. Saint Louis Energy and Utilities Gas and Electric Utilities
Peabody Energy Corporation Saint Louis Agriculture and Mining Mining and Quarrying
Emerson Electric Company Saint Louis Manufacturing Tools, Hardware and Light Machinery
Energizer Holdings, Inc. Saint Louis Manufacturing Manufacturing Other
Centene Corporation Saint Louis Healthcare, Pharmaceuticals and Biotech Healthcare, Pharmaceuticals, and Biotech Other
Express Scripts Saint Louis Healthcare, Pharmaceuticals and Biotech Pharmaceuticals
Reinsurance Group of America, Incorporated Chesterfield Financial Services Insurance and Risk Management
Ameren Corporation Saint Louis Energy and Utilities Gas and Electric Utilities
DST Systems, Inc. Kansas City Computers and Electronics Networking Equipment and Systems
Inergy, L.P. Kansas City Energy and Utilities Alternative Energy Sources
Leggett and Platt, Incorporated Carthage Manufacturing Furniture Manufacturing
Cerner Corporation Kansas City Software and Internet Software
O'Reilly Automotive, Inc. Springfield Retail Automobile Parts Stores
AMC Theatres Kansas City Media and Entertainment Motion Picture Exhibitors
Sigma-Aldrich Corporation Saint Louis Manufacturing Chemicals and Petrochemicals
HandR Block Kansas City Financial Services Securities Agents and Brokers
Graybar Services, Inc. Saint Louis Wholesale and Distribution Wholesale and Distribution Other
Edward Jones Saint Louis Financial Services Personal Financial Planning and Private Banking
Arch Coal, Inc. Saint Louis Energy and Utilities Alternative Energy Sources
Brown Shoe Company, Inc. Saint Louis Retail Clothing and Shoes Stores
Ralcorp Holdings, Inc. Saint Louis Manufacturing Food and Dairy Product Manufacturing and Packaging

training details locations, tags and why hsg

A successful career as a software developer or other IT professional requires a solid understanding of software development processes, design patterns, enterprise application architectures, web services, security, networking and much more. The progression from novice to expert can be a daunting endeavor; this is especially true when traversing the learning curve without expert guidance. A common experience is that too much time and money is wasted on a career plan or application due to misinformation.

The Hartmann Software Group understands these issues and addresses them and others during any training engagement. Although no IT educational institution can guarantee career or application development success, HSG can get you closer to your goals at a far faster rate than self paced learning and, arguably, than the competition. Here are the reasons why we are so successful at teaching:

  • Learn from the experts.
    1. We have provided software development and other IT related training to many major corporations in Missouri since 2002.
    2. Our educators have years of consulting and training experience; moreover, we require each trainer to have cross-discipline expertise i.e. be Java and .NET experts so that you get a broad understanding of how industry wide experts work and think.
  • Discover tips and tricks about Linux Unix programming
  • Get your questions answered by easy to follow, organized Linux Unix experts
  • Get up to speed with vital Linux Unix programming tools
  • Save on travel expenses by learning right from your desk or home office. Enroll in an online instructor led class. Nearly all of our classes are offered in this way.
  • Prepare to hit the ground running for a new job or a new position
  • See the big picture and have the instructor fill in the gaps
  • We teach with sophisticated learning tools and provide excellent supporting course material
  • Books and course material are provided in advance
  • Get a book of your choice from the HSG Store as a gift from us when you register for a class
  • Gain a lot of practical skills in a short amount of time
  • We teach what we know…software
  • We care…
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