SHA256 File Hash Values And How To Check Them (Raspberry Pi / Mac OS X / PowerShell)

Image showing SHA-256 value

Imagine that you are a software company and host an awesome free piece of software. One day your site is hacked and the download file for your software is replaced with a malicious version of the software. It might be days (or longer!) before you notice. Or what if someone is intercepting traffic and altering … Continue reading SHA256 File Hash Values And How To Check Them (Raspberry Pi / Mac OS X / PowerShell)

Testing Network Connectivity via PowerShell (Part 2)

Continuing on with my exploring of testing connectivity I ran into a practical reason today for using Powershell. A computer on my employers network apparently loses network connectivity (according to the end user) during a 2 hour window in the evening. The event logs on the PC don’t indicate any issues and the network logs … Continue reading Testing Network Connectivity via PowerShell (Part 2)

Testing Network Connectivity via PowerShell (Part 1)

Ask any IT user how they test basic network connectivity and the majority of answers will probably mention ping. Ping sends a ICMP (Internet Control Message Protocol) packet to a target and then waits for a reply. If ping shows a reply then there is basic network connectivity, if it doesn't get a reply then … Continue reading Testing Network Connectivity via PowerShell (Part 1)

BASIC on BBC iPlayer, Changing DNS Settings via Powershell

This week I have been expanding my knowledge by working my way through the modules on freecodecamp.org; it's free coding training so what's not to like? The awesome news this week is that the BBC has added some of it's 1980s archive episodes about BASIC to the BBC iPlayer. Concepts from BASIC are still used … Continue reading BASIC on BBC iPlayer, Changing DNS Settings via Powershell