Linux and Unix Training in Suffolk, Virginia

Every programming language has a mechanism to allow the programmer to create variables which hold custom data entered in by either the coder themselves or by the user of the application.

Regardless of whether you’re new to programming or not, you will have used variables and you should understand that in javascript they can hold any value such as a number or a string of text.

There is also another type of variable called an Array. Now, depending on who you talk to, some will say an array is actually an object, while others say it is a variable. Neither one is wrong but for the sake of simplicity we’ll refer to it as a variable.

Now, arrays are special because they can hold multiple values as opposed to standard variables which can only hold a single value at one time. If you can, try and imagine that your computer’s memory is made up of thousands of little boxes, and each of those boxes has an address which javascript will use to retrieve the array values when needed.

Python Programming for Cisco Networking Engineers

[Jun, 25, 2018] |
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Wondering why Cisco is teaching network engineers Python in addition to their core expertise?

Yes, arguably there are many other tools available to use to automate the network without writing any code. It is also true that when code is absolutely necessary, in most companies software developers will write the code for the network engineers. However, networks are getting progressively more sophisticated and the ability for network engineers to keep up with the rate of change, scale of networks, and processing of requirements is becoming more of a challenge with traditional methodologies.

Does that mean that all network engineers have to become programmers in the future? Not completely, but having certain tools in your tool belt may be the deciding factor in new or greater career opportunities. The fact is that current changes in the industry will require Cisco engineers to become proficient in programming, and the most common programming language for this new environment is the Python programming language. Already there are more opportunities for those who can understand programming and can also apply it to traditional networking practices.

Cisco’s current job boards include a search for a Sr. Network Test Engineer and for several Network Consulting Engineers, each with "competitive knowledge" desired Python and Perl skills. Without a doubt, the most efficient network engineers in the future will be the ones who will be able to script their automated network-related tasks, create their own services directly in the network, and continuously modify their scripts.

Whether you are forced to attend or are genuinely interested in workshops or courses that cover the importance of learning topics related to programmable networks such as Python, the learning curve at the very least will provide you with an understanding of Python scripts and the ability to be able to use them instead of the CLI commands and the copy and paste options commonly used. Those that plan to cling to their CLI will soon find themselves obsolete.

As with anything new, learning a programming language and using new APIs for automation will require engineers to learn and master the skills before deploying widely across their network. The burning question is where to start and which steps to take next?

In How Do I Get Started Learning Network Programmability? Hank Preston – on the Cisco blog page suggest a three phase approach to diving into network programmability.

“Phase 1: Programming Basics

In this first phase you need to build a basic foundation in the programmability skills, topics, and technologies that will be instrumental in being successful in this journey. This includes learning basic programming skills like variables, operations, conditionals, loops, etc. And there really is no better language for network engineers to leverage today than Python. Along with Python, you should explore APIs (particularly REST APIs), data formats like JSON, XML, and YAML. And if you don’t have one already, sign up for a GitHub account and learn how to clone, pull, and push to repos.

Phase 2: Platform Topics

Once you have the programming fundamentals squared away (or at least working on squaring them away) the time comes to explore the new platforms of Linux, Docker, and “the Cloud.” As applications are moving from x86 virtualization to micro services, and now serverless, the networks you build will be extending into these new areas and outside of traditional physical network boxes. And before you can intelligently design or engineer the networks for those environments, you need to understand how they basically work. The goal isn’t to become a big bushy beard wearing Unix admin, but rather to become comfortable working in these areas.

Phase 3: Networking for Today and Tomorrow

Now you are ready to explore the details of networking in these new environments. In phase three you will dive deep into Linux, container/Docker, cloud, and micro service networking. You have built the foundation of knowledge needed to take a hard look at how networking works inside these new environments. Explore all the new technologies, software, and strategies for implementing and segmenting critical applications in the “cloud native” age and add value to the application projects.”

Community resources:

GitHub’s, PYPL Popularity of Programming Language lists Python as having grown 13.2% in demand in the last 5 years.

Python in the June 2018 TIOBE Index ranks as the fourth most popular language behind Java, C and C++.

Despite the learning curve, having Python in your tool belt is without a question a must have tool.

Is Apple Worth the Price?

[Jul, 23, 2012] |
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The short answer is, yes and no. It depends upon who you are. The purpose of this entry is to help you determine, yes or no.

Full disclosure. This entry is created on a Mac mini. And doing so on Windows 8 (Release Preview). If you are a developer, in my humble opinion you need to test on all platforms you expect your app to run or you are not much of a developer.

To be successful you need to leave politics in geographical territory known as Washington DC. My definition of that is: 14 mi.² of real estate surrounded by reality.

Only in politics can we afford to take sides. Those of us in IT, especially developers need to do our best to be all things to all people. Certainly this is a technical impossibility. However in our game we can get some points for at least being serviceable if not outstanding.

Downloading A Web Page Using Python

[Oct, 25, 2012] |
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In this tutorial I am going to give you a gentle introduction to network programming in Python. If you are new to programming or new to Python then that may seem like a daunting thought. But read on and you will be pleasantly surprised how easy it is.

Like most modern programming languages, Python was designed for networking from the very beginning, and thanks to that, a lot of the networking tasks you would want to accomplish with the language are made a whole lot easier.

Network communication is a large topic, but if it is something that interests you then read on because in this tutorial I will show you how to download a web page. I will show you how easy Python makes tasks like this.

Take a look at the following code:

import urllib
	
con = urllib.urlopen("http://hartmannsoftware.com")
page = con.read()
con.close()
print page

Tech Life in Virginia

Virginia is known as "the birthplace of a nation,â€ is nicknamed the "Old Dominion" and has had 3 capital cities, Jamestown, Williamsburg, and Richmond. The state motto is "Sic Semper Tyrannis"â€¦â€œThus always to tyrantsâ€ More people work for the U.S. government than any other industry in this region. Virginia's largest private employer is also the world's largest ship building yard. Because the state hosts some major Net firms such as AOL, Network Solutions, and MCI WorldCom it has dubbed itself the "Internet Capital of the world".

Knowledge has never been known to enter the head via an open mouth. ~ Doug Larson

other Learning Options

Software developers near Suffolk 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.

Capital Area .NET Users Group · Graphic & Web Design NoVA · OWASP Northern Virginia Chapter ·

Fortune 500 and 1000 companies in Virginia that offer opportunities for Linux Unix developers

Company Name	City	Industry	Secondary Industry
Brink's Inc.	Richmond	Business Services	Security Services
Federal Home Loan Mortgage Corporation (Freddie Mac)	Mc Lean	Financial Services	Lending and Mortgage
General Dynamics Corporation	Falls Church	Manufacturing	Aerospace and Defense
CarMax, Inc.	Henrico	Retail	Automobile Dealers
NVR, Inc.	Reston	Real Estate and Construction	Construction and Remodeling
Gannett Co., Inc.	Mc Lean	Media and Entertainment	Newspapers, Books and Periodicals
Smithfield Foods, Inc.	Smithfield	Manufacturing	Food and Dairy Product Manufacturing and Packaging
ManTech International Corporation	Fairfax	Computers and Electronics	IT and Network Services and Support
DynCorp International	Falls Church	Manufacturing	Aerospace and Defense
Genworth Financial, Inc.	Richmond	Financial Services	Insurance and Risk Management
MeadWestvaco Corporation	Richmond	Manufacturing	Paper and Paper Products
Dollar Tree, Inc.	Chesapeake	Retail	Department Stores
Alpha Natural Resources, Inc.	Abingdon	Agriculture and Mining	Mining and Quarrying
SRA International, Inc.	Fairfax	Business Services	Business Services Other
NII Holdings, Inc.	Reston	Telecommunications	Wireless and Mobile
Dominion Resources, Inc.	Richmond	Energy and Utilities	Gas and Electric Utilities
Norfolk Southern Corporation	Norfolk	Transportation and Storage	Freight Hauling (Rail and Truck)
CACI International Inc.	Arlington	Software and Internet	Data Analytics, Management and Storage
Amerigroup Corporation	Virginia Beach	Financial Services	Insurance and Risk Management
Owens and Minor, Inc.	Mechanicsville	Healthcare, Pharmaceuticals and Biotech	Personal Health Care Products
Advance Auto Parts, Inc	Roanoke	Retail	Automobile Parts Stores
SAIC	Mc Lean	Software and Internet	Software
AES Corporation	Arlington	Energy and Utilities	Gas and Electric Utilities
Capital One Financial Corporation	Mc Lean	Financial Services	Credit Cards and Related Services
Sunrise Senior Living, Inc.	Mc Lean	Healthcare, Pharmaceuticals and Biotech	Residential and Long-Term Care Facilities
Computer Sciences Corporation	Falls Church	Software and Internet	Software
Altria Group, Inc.	Richmond	Manufacturing	Manufacturing Other
Northrop Grumman Corporation	Falls Church	Manufacturing	Aerospace and Defense
Alliant Techsystems Inc.	Arlington	Manufacturing	Aerospace and Defense
Markel Corporation	Glen Allen	Financial Services	Insurance and Risk Management

training details locations, tags and why hsg

the hartmann software group advantage

why take Linux Unix Training with the hartmann software group?

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 Virginia 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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Virginia cities where we offer Linux Unix Training Classes

·Alexandria, Virginia · Suffolk, VA · Lynchburg · Newport News, VA ·Chesapeake, Virginia · Roanoke, VA ·Virginia Beach, Virginia · Washington DC, VA · Portsmouth · Richmond, VA ·Norfolk, Virginia · Arlington, VA ·Hampton, Virginia

Linux Unix Training Classes in Suffolk, Virginia

Learn Linux Unix in Suffolk, Virginia 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 Suffolk, Virginia: Linux Unix Training

Linux Unix Training Catalog

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DevOps Classes

Foundations of Web Design & Web Authoring Classes

Java Programming Classes

Course Directory [training on all levels]

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Tech Life in Virginia

training details locations, tags and why hsg

Interesting Reads Take a class with us and receive a book of your choosing for 50% off MSRP.