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Linux

Computing Trivia: Molly-guards

14th April 201825th June 2018 @davidcostello42

Did you know that the protective plastic or glass shield over an important button is colloquially called a Molly-guard? You can also get a script for Unix PC’s called molly-guard […]

 Computing  Bash, Command Line, Linux, Random, Trivia  Leave a comment

Boot loop issue on VirtualBox

10th April 20183rd May 2018 @davidcostello42

Here’s a quick tip on a not so obvious bug you can have with VirtualBox. I took ownership of a Windows 7 virtual machine from a colleague. I copied the […]

 Computing  Linux, Programming, Virtualisation, Windows  Leave a comment

Securely erasing a hard drive

29th October 20172nd January 2018 @davidcostello42

Recently a relative of mine asked if I could get rid of a couple of old desktop computers and a laptop. The relative had removed all their important files from […]

 Computing, Security  Bash, Command Line, Linux  Leave a comment

Compiling FFmpeg for Raspberry Pi / Raspbian Jessie

15th August 20178th September 2017 @davidcostello42

There’s plenty of guides around, but none that worked flawlessly for me. Here’s my recipe for building and compiling FFmpeg for the Raspbian Jessie environment for Raspberry Pi. If you’re […]

 Computing, Programming  Audio, Audio Encoding, Bash, Encoding, FFmpeg, Linux, Programming, Raspberry Pi, Video, Video Encoding  Leave a comment

Configure FTP on a Raspberry Pi

12th August 201712th August 2017 @davidcostello42

Firstly; let me stress that you should really try and avoid using FTP. It’s an old protocol, it’s not secure – and by default the SSH support on the Pi […]

 Internet, Programming, Security  FTP, Linux, Raspberry Pi, Security  Leave a comment

Setting up MiniDLNA on a Raspberry Pi

24th July 201725th October 2017 @davidcostello42

If you’re familiar with DLNA, which is a media streaming protocol that lots of devices support (PC, games consoles, smart tv’s and tablets and cellphones), you can probably guess what […]

 Internet  Bash, DLNA, Linux, Media Streaming, MiniDLNA, Raspberry Pi  Leave a comment

Code Scraps: Get a list of all file content in a directory in Linux

19th July 201725th July 2017 @davidcostello42

This is a quick code scrap – I needed a list of all the files within a directory path on a Linux server today. I need to do this infrequently […]

 Code Scraps  Bash, Linux  1 Comment

Code Scraps: Allow root to login via SSH

5th June 20172nd February 2018 @davidcostello42

Most modern Linux systems will prevent the root user from logging in remotely via SSH. This is a very good security practice and you should avoid altering this as it […]

 Code Scraps, Computing, Programming, Security  Bash, Linux, Security, Shell  Leave a comment

Raspberry Pi – Setup steps

14th February 20178th September 2017 @davidcostello42

This is a quick guide for getting a Raspberry Pi with Raspbian up and running. This article is aimed at those with some technical experience of the Unix Shell and […]

 Computing  Command Line, Learning, Linux, Raspberry Pi  Leave a comment

Basic configuration for iptables (suitable for Raspberry Pi)

25th September 201615th September 2017 @davidcostello42

This is just a quick post for my own personal benefit to remind me what commands to use when setting up iptables rules. If you want to configure a firewall […]

 Programming, Security  Command Line, Firewall, Linux, Raspberry Pi  4 Comments

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