Linux Unix Training Classes in Hartford, Connecticut

Learn Linux Unix in Hartford, Connecticut 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 Hartford, Connecticut: Linux Unix Training

We offer private customized training for groups of 3 or more attendees.
Hartford  Upcoming Instructor Led Online and Public Linux Unix Training Classes
Enterprise Linux System Administration Training/Class 14 April, 2025 - 18 April, 2025 $2190
HSG Training Center instructor led online
Hartford, Connecticut 06106
Hartmann Software Group Training Registration
Linux Fundaments GL120 Training/Class 2 June, 2025 - 6 June, 2025 $2090
HSG Training Center instructor led online
Hartford, Connecticut 06106
Hartmann Software Group Training Registration
LINUX SHELL SCRIPTING Training/Class 30 June, 2025 - 1 July, 2025 $990
HSG Training Center instructor led online
Hartford, Connecticut 06106
Hartmann Software Group Training Registration
OpenShift Fundamentals Training/Class 28 April, 2025 - 30 April, 2025 $2090
HSG Training Center instructor led online
Hartford, Connecticut 06106
Hartmann Software Group Training Registration
RED HAT ENTERPRISE LINUX AUTOMATION WITH ANSIBLE Training/Class 21 April, 2025 - 24 April, 2025 $2735
HSG Training Center instructor led online
Hartford, Connecticut 06106
Hartmann Software Group Training Registration
RED HAT ENTERPRISE LINUX SYSTEMS ADMIN I Training/Class 19 May, 2025 - 23 May, 2025 $2090
HSG Training Center instructor led online
Hartford, Connecticut 06106
Hartmann Software Group Training Registration
RED HAT ENTERPRISE LINUX SYSTEMS ADMIN II Training/Class 18 August, 2025 - 21 August, 2025 $1890
HSG Training Center instructor led online
Hartford, Connecticut 06106
Hartmann Software Group Training Registration
RHCSA EXAM PREP Training/Class 16 June, 2025 - 20 June, 2025 $2090
HSG Training Center instructor led online
Hartford, Connecticut 06106
Hartmann Software Group Training Registration
DOCKER WITH KUBERNETES ADMINISTRATION Training/Class 5 May, 2025 - 9 May, 2025 $2490
HSG Training Center instructor led online
Hartford, Connecticut 06106
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)
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Foundations of Web Design & Web Authoring Classes

cost: $ 1290length: 3 day(s)
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Java Programming Classes

cost: $ 1390length: 3 day(s)
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Blog Entries publications that: entertain, make you think, offer insight

In programming, memory leaks are a common issue, and it occurs when a computer uses memory but does not give it back to the operating system. Experienced programmers have the ability to diagnose a leak based on the symptoms. Some believe every undesired increase in memory usage is a memory leak, but this is not an accurate representation of a leak. Certain leaks only run for a short time and are virtually undetectable.

Memory Leak Consequences

Applications that suffer severe memory leaks will eventually exceed the memory resulting in a severe slowdown or a termination of the application.

How to Protect Code from Memory Leaks?

Preventing memory leaks in the first place is more convenient than trying to locate the leak later. To do this, you can use defensive programming techniques such as smart pointers for C++.  A smart pointer is safer than a raw pointer because it provides augmented behavior that raw pointers do not have. This includes garbage collection and checking for nulls.

If you are going to use a raw pointer, avoid operations that are dangerous for specific contexts. This means pointer arithmetic and pointer copying. Smart pointers use a reference count for the object being referred to. Once the reference count reaches zero, the excess goes into garbage collection. The most commonly used smart pointer is shared_ptr from the TR1 extensions of the C++ standard library.

Static Analysis

The second approach to memory leaks is referred to as static analysis and attempts to detect errors in your source-code. CodeSonar is one of the effective tools for detection. It provides checkers for the Power of Ten coding rules, and it is especially competent at procedural analysis. However, some might find it lagging for bigger code bases.

How to Handle a Memory Leak

For some memory leaks, the only solution is to read through the code to find and correct the error. Another one of the common approaches to C++ is to use RAII, which an acronym for Resource Acquisition Is Initialization. This approach means associating scoped objects using the acquired resources, which automatically releases the resources when the objects are no longer within scope. RAII has the advantage of knowing when objects exist and when they do not. This gives it a distinct advantage over garbage collection. Regardless, RAII is not always recommended because some situations require ordinary pointers to manage raw memory and increase performance. Use it with caution.

The Most Serious Leaks

Urgency of a leak depends on the situation, and where the leak has occurred in the operating system. Additionally, it becomes more urgent if the leak occurs where the memory is limited such as in embedded systems and portable devices.

To protect code from memory leaks, people have to stay vigilant and avoid codes that could result in a leak. Memory leaks continue until someone turns the system off, which makes the memory available again, but the slow process of a leak can eventually prejudice a machine that normally runs correctly.

 

Related:

The Five Principles of Performance

In Demand IT Skills

 
Technology is changing all the time, and the jobs that are associated with technology are changing as well. People that are looking at careers in technology will see some jobs that are being phased out as others increase in popularity. This means that people that are interested in tech jobs should be vigilant in researching those opportunities that are growing in demand.
 
A Dying Breed of Legacy Systems
 
The mainframe programmers i.e., COBOL, have been getting phased out for years, and are reaching retirement age. The demand for these skills are at an end of an era as more technology surfaces with needs for app development and cloud migration. These jobs will be phased out and are being replaced with developers that are knowledgeable in more object-oriented programming positions such as Java, C#, and etc. 
 
Programmers / Analysts
 
Professionals that work in software development, can find work in a number of different tech careers. People that know how to program, particularly in object oriented programming, can expect to be employed and in demand for some time to come. The salaries for programmers range from $50k – millions, depending on the skillsets one has mastered. Like any other profession, one can opt to learn just enough to get by or hone in on a discipline currently in demand and master it, such as data analysts, machine learning analyst and cloud migration specialists.  
 
 
Tech Support for Portable Devices
 
The healthcare industry is seeing a rise in jobs in Information Technology because more hospitals are going paperless. There is a great demand for people that have the ability to work with portable devices because this is what many doctors and nurses will be using as they move away from the long paper trail that has been created from patients. People that have the ability to configure and troubleshoot portable devices like tablets and phones are able to support the applications for these devices will be in high demand. In this case, learning programming languages such a C++ is the perfect route to go in. 
 
 
Technology Trainers 
 
There will always be a need for someone that can learn, utilize and teach proprietary programs to others. Internal proprietary technology will need to be updated which means that technology trainers are expected to be current in the knowledge base for  companies that are utilizing this software. People that are in the training field, will need to stay updated with new technology, grasp new concepts quickly and be able to teach it efficiently. As more companies take hold of proprietary programs, it becomes important for software application trainers to be put in place to teach this technology. 
 
Printer Support Jobs Dwindle
 
People that are working in the technology field of printer support will need to consider looking at other opportunities because some of these printer support jobs will be phased out.  There is a reason for this. More jobs are becoming phased out in the world of printer technology because fewer people are using printers. It has become easier to read the documents and transfer these documents to other workers inside an organization. This means that less money is being spent on printers. Even less money is being spent on printer support. People that have acquired jobs where their primary role is to work in printer repair will see a decline in the number of people that are needed for these types of positions. It becomes a lot less feasible to have printer repair people in place when there is no printer in the office.
 
 
Graphic Design
 
Technology also holds a special place for those that have the experience in graphic design. Websites and social media really engage people in visual art and people that know how to display it on web pages have a plethora of jobs. This leaves this field wide open for those that know about design structures and editing images that can result in eye catching imagery.
 
Wan/ Lan Management
 
One big area that offers an array of different jobs is the area of wide and local network router and switch management. People that are proficient in programming switches and building networks can get themselves a number of jobs dealing with the network topology. Tech careers are booming when it comes to this type of field because many people do not have this experience. They may know how to set up computers, but they may not have any idea about what to do if the network connection is no longer working properly.
 
People that know how to configure switches for networks and troubleshoot these issues with network connectivity will have a wide range of geographical locations that they connect together to build one network for a business.

For those newly moving into the realm of programming, the important question to mull over is what programming language or technology to specialize in. On the other hand, those who are already working as a software developer, the constant worry remains whether their current technology would become obsolete very soon.

Both these concerns could be easily addressed by checking the list of programming languages that are highly in demand and formulating the career by modifying your specialization accordingly. The supply for the developers have not met with the demand in these programming languages yet, making them most viable options for career.

Popular Programming Languages Based on TIOBE Index

The top 10 list of programming languages which are highly in demand in 2014 is listed below in the order of popularity. These languages are identified from the TIOBE Programming Community index which consists of 20 top programming languages. TIOBE index is an indicator of the popularity of programming languages and is updated once in every month.  This index is calculated using multiple search engines, and the ratings are based on the number of skilled engineers world-wide, courses and third party vendors.

In the ever changing landscape of software programming, it is not surprising that developers and employees have a different set of preferences for desired skills.  However the number one language that developers want to learn according to a survey of developers by technical recruiter, Hacker Rank is Python. This is not a surprise considering that Python has been in demand for several years and programmers tend to really enjoy this language for clear syntax, good OOP support and great shortcuts. Python, named “the language of the year” in 2007 and 2010 in the TIOBE Index and has climbed to #4 status in May of 2018.

According to the study, employers want developers who:

-  Have problem-solving skills, such as the ability to break down large, complex problems.
- Are proficient in their programming language and debugging.
- Can design systems.
- Can optimize performance.
- Have experience in reviewing and testing code.
- Are proficient in database design

Surprisingly, formal education is not the deciding factor when it comes to what companies care about the most. People with computer degrees or certifications on a resume are not necessarily a first choice for hiring managers. Others that have years of experience even if those individuals are partially self-taught in the field stand to be taken seriously in the field.   For those individuals with a passion to learn and master a skill, there are ample opportunities with smaller to mid-sized companies.

Some interesting FAQ’s from the study:

    On average, developers know 4 languages, and they aspire to learn 4 more.
    Younger developers between 18 and 24 plan to learn 6 languages.
    Folks older than 35 only plan to learn and additional 3 languages.
    The top languages developers said they will learn were, Go, Python, Scala, Kotlin, and Ruby.
    There is a large gap between employers seeking developers that know React than there are folks that can do it.

So, Why Learn Python?
It is now the most popular introductory teaching language in U.S. universities.  Python is easy to use, powerful, and versatile, making it a great choice for beginners and experts alike. It allows you to think like a programmer and not waste time understanding difficult syntax that other programming languages can command. And, because of its rapid growth, many developers contribute to the Python community and share Python libraries making creativity that much more a reality

Tech Life in Connecticut

Software developers in Hartford, Fairfield, New Haven, Greenwich and New Britain are rich in Fortune 1000 companies such as the Xerox Corporation, CIGNA, Aetna, and United Technologies Corporation just to name a few. A fun fact: Hartford has the oldest U.S. newspaper still being published—the Hartford Courant, established 1764. Connecticut is also the insurance capital of the nation.
The trouble with the world is not that people know too little, but that they know so many things that ain't so. ~Mark Twain
other Learning Options
Software developers near Hartford 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 Connecticut that offer opportunities for Linux Unix developers
Company Name City Industry Secondary Industry
Stanley Black and Decker, Inc. New Britain Manufacturing Tools, Hardware and Light Machinery
EMCOR Group, Inc. Norwalk Energy and Utilities Energy and Utilities Other
The Hartford Financial Services Group Inc. Hartford Financial Services Insurance and Risk Management
Crane Co. Stamford Manufacturing Tools, Hardware and Light Machinery
Cenveo. Inc. Stamford Business Services Business Services Other
Amphenol Corporation Wallingford Computers and Electronics Semiconductor and Microchip Manufacturing
W. R. Berkley Corporation Greenwich Financial Services Insurance and Risk Management
Silgan Holdings Inc. Stamford Manufacturing Manufacturing Other
Hubbell Incorporated Shelton Manufacturing Concrete, Glass, and Building Materials
IMS Health Incorporated Danbury Business Services Management Consulting
CIGNA Corporation Hartford Financial Services Insurance and Risk Management
Chemtura Corp. Middlebury Manufacturing Chemicals and Petrochemicals
Harman International Industries, Inc Stamford Computers and Electronics Audio, Video and Photography
United Rentals, Inc. Greenwich Real Estate and Construction Construction Equipment and Supplies
The Phoenix Companies, Inc. Hartford Financial Services Investment Banking and Venture Capital
Magellan Health Services, Inc. Avon Healthcare, Pharmaceuticals and Biotech Healthcare, Pharmaceuticals, and Biotech Other
Terex Corporation Westport Manufacturing Heavy Machinery
Praxair, Inc. Danbury Manufacturing Chemicals and Petrochemicals
Knights of Columbus New Haven Non-Profit Social and Membership Organizations
Xerox Corporation Norwalk Computers and Electronics Office Machinery and Equipment
Starwood Hotels and Resorts Worldwide, Inc. Stamford Travel, Recreation and Leisure Hotels, Motels and Lodging
United Technologies Corporation Hartford Manufacturing Aerospace and Defense
General Electric Company Fairfield Computers and Electronics Consumer Electronics, Parts and Repair
Pitney Bowes, Inc. Stamford Manufacturing Tools, Hardware and Light Machinery
Charter Communications, Inc. Stamford Telecommunications Cable Television Providers
Aetna Inc. Hartford Financial Services Insurance and Risk Management
Priceline.com Norwalk Travel, Recreation and Leisure Travel, Recreation, and Leisure Other

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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 Connecticut 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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