Primitive Designs

24/08/2021

So that's both of us rested positive for Coronavirus. I don't feel great but Caroline is fine. Thank goodness we got our vaccines!

19/11/2020

Create a raw backup of a device with dd

Posted on 19/11/202019/11/2020 by adminCreate a raw backup of a device with dd I am sure there are lots of clever programs for backing up memory cards or disks with pretty graphic interfaces but there is a very simple commandline for doing that called “dd”. It simply copies an entire file to ano...

02/11/2020

A very useful tool I recommend for all Internet facing Hosts. Stop the attacks with Fail2Ban.

Posted on 02/11/2020 by adminStop the attacks with Fail2ban There are lots of ways to protect servers. It is best to follow the way the army works or how animals work in th wild. First and foremost you armour up. The firewall and good passwords are IT armour. Next you can camoflage. Althouh it’s l...

21/10/2020

This weeks Blog. Using NMAP to scan your network https://primitive.co.uk/?p=140

13/10/2020

Another Blog post. This time about using my favourite BootCD to remotely fix an install.

Posted on 13/10/202013/10/2020 by adminRemote access to SystemrescueCD There are lots of good rescue CD’s out there. The one I have used for the last 12 years is System Rescue CD. Why? As well as lots handy tools the key feature I have used countless times is that it easily runs a SSH server. Imag...

08/10/2020

Not as useful nowadays but handy to know for a server you cannot reboot any other way

Posted on 08/10/2020 by adminEmergency Reboot/Power off I posted it before on an old blog but I thought I would put it here. Nowadays most machines run as VM’s so it is not an issue to reboot them but just in case you have physical server that you do not have access to or it is stuck in a server r...

01/10/2020

Using the screen command in a ssh session. https://primitive.co.uk/?p=125

15/09/2020

Another post. This time on using your Bash history...

Posted on 15/09/2020 by adminKeep your history… I was looking through twittter recently and saw a good post on the bash history – https://anto.online/guides/bash-history/ However I thought I would say how I use my Bash History… Firstly a warning on using Bash (or most shells actually). Leave t...

31/08/2020

OK another post. This time on how to create a secure partition on a removable device such as a USB disk

https://primitive.co.uk/?p=102

13/07/2020

I have started creating posts again. First of all covering a simple script for generating SSL certificates without having to use certbot.

Posted on 13/07/2020 by adminUsing acme.sh to generate SSL certificates Although the standard Letsencrypt process “cerbot” is very easy and runs well on a webserver, sometimes you want to generate certiicates on a old server or a vm not running a w1eb server. This scripot runs well on an old Ubu...