A Technical I.T./DevOps Blog
Question
What is software-defined infrastructure?
Answer
There is no universally accepted definition of software-defined infrastructure (according to Techopedia).
We define it as infrastructure that is provisioned and controlled by software. (There is physical infrastructure that powers or underlies SDI.) The provisioning and configuring of virtual machines is one example of SDI. OpenStack and Ericsson’s SDI Manager are other examples of SDI.
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Problem scenario
Androids have home screens (which are the equivalent of a Windows, Mac or Linux desktop). How do you get an application to be easily accessed from the home screen (rather than needing to search for it and drill down each time)?
Solution
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To learn more about Python, see this site https://jobtensor.com/Python-Introduction.
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Problem scenario
You want to floss, but it can hurt your fingers. You do not want to strangle or cut off the blood circulation to your fingers. What should you do to floss without pain?
Possible Solution #1
Floss your teeth the way dental hygienists floss patients’ teeth. Use latex or vinyl gloves. (To help with overall visibility as even skin-tight gloves may take up some space,
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Continue reading “How Do You Floss without Hurting Your Fingers?”
Problem scenario
You want to test some Python scripting or write a basic program to warm up before a coding interview. You only have access to a Windows machine (e.g., at a hotel “business center”). You cannot install Python on the laptop. How do you do some Python coding?
Solution
As long as you have access to the internet, browse to this site: https://www.onlinegdb.com/
(For a more serious development project,
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Continue reading “How Do You Quickly Do Some Python Coding?”
Problem scenario
You want to pass the var-file flag in a Terraform command. You have a different configuration/variables file (from the default one) that you want the Terraform command to use. The resulting error indicates that there is insuffient configuration data; the behavior is consistent with no variables files being readable.
How do you get a terraform plan command to look at a different folder location or directory?
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Problem scenario
You are running Windows Server 2019. You want to install Windows DSC. What do you do?
Solution
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Continue reading “How Do You Install Windows DSC on Windows Server 2019?”
Problem scenario
You need to make a Linux server very secure. How do you harden a Linux server?
Answer
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Continue reading “How Do You Secure or Harden a Linux Server?”
Problem Scenario
Rotating a list can make it appear circular (wherein an iteration from the last element brings you to the first element in the list). You do not want to import any modules. You have a list called foobar. You want to keep the content the same, but adjust the index by 1 on each value. How do you rotate a list in Python?
Solution
foobar = foobar[-1:] + foobar[:-1] …
Problem scenario
You have an ultra-violet water filter from AquaSana. It is leaking water. What should you do?
Possible Solutions
Never have the electrical plug in an outlet when making changes! The UV light could blind you if you look at it when it is on.
Make sure the O-rings on the top and bottom are in good condition. Old rubber will not provide a good seal.
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Continue reading “Why Is You AquaSana UV Water Filter Leaking?”