-
Continue reading →: Data Variability: Standard Deviation and Variance (Notes)
When discussing data variability (i.e. how much the values vary) there are two methods that can help. These are Sample Standard Deviation and Sample Variance. Other Terms That Are Needed Measures of Centre The middle or centre of the data. Measures of Spread How diverse from the Measure of Centre…
-
Continue reading →: SQL vs NoSQL (Notes)
A quick overview of the differences between SQL and NoSQL. SQL Structured Query Language (SQL) is used for relational databases, which are table based. For example, an column in table A (e.g. User_ID) may have a relation with a column in table B (e.g. Order_Ref) and table B may have…
-
Continue reading →: Data, Data Lakes and Data Warehouses (Notes)
Continuing on from my post looking at Data Architecture / Data Modelling, I am now going to look at data, data lakes and data warehouses by turning my notes into this blog post. Data Data can include emails, phone calls, financial transactions, sensor readings, metrics, logs, pretty much everything. When…
-
Continue reading →: Data Architecture, Data Modelling and Data Processing (Notes)
Data Architecture (DA) Most organisations / companies have enterprise architecture which describes how a computer network (with storage, servers, switches, routers etc.) is laid out. Data architecture is very similar in that it shows the models, rules, standards, and policies that are used in the collection, storage, and use of…
-
Continue reading →: Personal Update – April 2022
It’s been a while since my last personal update (October 2021) so I think it’s about time for one. Degree Apprenticeship Over the autumn I completed the module around Cloud Solutions and Architectures. I’ve been a cloud user for a years now, with experience of a few cloud environments and…
-
Continue reading →: What Is A .intunewin File And How To Create One
A .intunewin file is used with Microsoft’s Intune to deploy Windows applications to Microsoft Windows devices managed by Intune, as an alternative to using apps from the Microsoft Store (i.e., for applications not available in the store). Creating A .intunewin File Microsoft provide a tool called “IntuneWinAppUtil.exe” that is used…
-
Continue reading →: What’s With All The Nines? (Availability)
If you are a user of cloud platforms (e.g. AWS, Azure, Google Cloud) you have probably noticed the mentions of availability that include a lot of nines (9s). Generally these are 99.xx (ninety-nine point something), and the more nines after the ninety-nine point means more availability but to what level?…
-
Continue reading →: Installing MediaWiki with Ansible (Linux)MediaWiki was developed originally for Wikipedia and has grown to support lots of sites. With this in mind you may consider installing MediaWiki and running a local wiki, especially as MediaWiki provides instructions on specific operating system installs. In an effort to speed up installs I’ve created an Ansible playbook…
-
Continue reading →: SOCKS Proxy (Linux)
When working remotely (i.e. away from home) I often think about how it would be great if I could open up some of my internal projects when I have spare time and carry on working on them. There are multiple options on how I could do this, some are costly…
-
Continue reading →: Security: MAC Address and ARP (Notes)
Every network interface controller (NIC) has a Media Access Control (MAC) address which is unique to the interface. A device may have multiple network interfaces (e.g., a ethernet network interface and a wireless network interface) and will a MAC address for each interface (e.g., a Rasperry Pi 4 has one…
Hello,
Welcome to GeekTechStuff
My home away from home and where I will be sharing my adventures in the world of technology and all things geek.
The technology subjects have varied over the years from Python code to handle ciphers and Pig Latin, to IoT sensors in Azure and Python handling Bluetooth, to Ansible and Terraform and material around DevOps.
Let’s connect
Join the fun!
Stay updated with the sites latest blog posts by joining the newsletter.
GeekTechStuff 