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My Docker development shell

I just made a simple docker container to use as a development shell. This will make it easier and faster for me to just build the docker container and run it when I need …

21 Dec 2021

Restrict Docker network ranges

So I have had some issues where some of my Docker images have been created with a network of 192.168.16.x. And I have my VLAN for WIFI is running on 192.168.20.x. This is …

06 Nov 2021

Dual NVIDIA GPU with passthrough on Debian

I have a brand new Gigabyte x570 Aorus Pro, this motherboard has super awesome iommu groups. Finally can I use both my NVME drives and two GPUs. My old Ryzen 5 3600 cpu …

01 Nov 2021

Installing Debian Sid and Xanmod-cacule kernel

I have been running Manjaro Mate for a while, mostly because I had a need to try some Arch based distro. It was nice, but at the moment I like Debian more. So I’m …

27 Aug 2021

Setup Graylog as central syslog server

I was searching for information about running a local syslog server in my network when I stumbled on Graylog. I’m currently running an ElastiFlow server with …

10 Dec 2020

Restore data from QCow2 missing backing file (data recovery part 4)

I have successfully restored data from my QCow2 file with a missing backing file. I wrote lots of C code to be able to convert the QCow2 file into an IMG file. Then I …

30 Nov 2020

Read QCow2 file using C (data recovery part 3)

Time to write some code but I will not go into all the details on how to write C code. I will only reference some of the C code specific to reading the actual QCow2 file. …

28 Nov 2020

QCow2 File format (data recovery part 2)

QCow2 image file is used by Qemu for virtual harddrive images. I will not go into any details about the file format, I will only scratch the surface enough to be able to …

26 Nov 2020

Failed at backup... (data recovery part 1)

So everywhere can you read about how important it is to backup your data. Are you actually doing it? I don’t do it, although I have a private git server where I …

24 Nov 2020

Debian mount NFS share

Another cheat sheet, this one is for mounting NFS shares on boot in Debian 10. First we need to install nfs-common $ sudo apt install nfs-common and then add the NFS …

07 Oct 2020

Linux gaming VM issues (part 5 of Debian as type 1 hypervisor)

So I have been running a Linux virtual machine as my main OS for a while. Recently I changed things a bit, moved my Linux VM over to the big GPU (RTX2060) and enlarged …

03 Oct 2020

Isolating CPU cores from VM host

It is possible to isolate the CPU cores/threads from the Host OS, so it will not use those cores/threads for anything. This is done by using the isolcpus paramater to the …

03 Oct 2020

Install Docker and docker-compose on Debian 10

Docker is awesome to quickly get a service up an running. Installing Docker on Debian 10 is not just apt-get install docker There is an official guide over at …

30 Aug 2020

Debian 10 static IP

Cheat sheet to set a static IP address on Debian, just because I can’t remember how to do it. By default Debian use dhcp, so we need to edit /etc/network/interfaces …

30 Aug 2020

Gaming on Debian, Lutris and Steam

Most people already know about Steam, Lutris is a similar frontend for installing and running mostly Windows games on Linux through Wine. It’s pretty easy to …

26 Aug 2020

Game streaming server (part 4 of Debian as type 1 hypervisor)

Using my Windows VM to act as a game streaming server, both Geforce Experience and Steam. Well I have already tried to game on Linux and for me it works perfectly, I have …

18 Aug 2020

Complete mumble server using Docker-compose

I went to the process of creating a mumble server with mumble-web as fronted, mumble-django as admin portal and murmur for the actual mumble server. All of them running …

14 Aug 2020

Change username for a Linux user

This is how I change my login username for my Linux (Debian) machine. First I log out to make sure no processes are running for that user, then I log in as root. Then …

13 Aug 2020

Install Nvidia drivers for Debian 10

This is just a short how to for installing Nvidia drivers on Debian 10, including the i386 packages needed for Lutris and/or Steam gaming. First enable i386 architecture …

11 Aug 2020

Libvirt automatic USB passthrough scripts

Short guide to setup automatic USB passthrough for a virtual machine. With these scripts it is possible to dedicate USB port(s) for one virtual machine. Anything plugged …

09 Aug 2020

Install Debian VM (part 3 of Debian as type 1 hypervisor)

To make the Debian host OS acting like a type 1 hypervisor, the desktop OS must run as a virtual machine too. So the second GPU will be passthrough to the second virtual …

09 Aug 2020

Installing Windows VM and passthrough GPU (part 2 of Debian as type 1 hypervisor)

Now we are ready to install our first virtual machine. But first we need something to install from. You can download the ISO directly from Microsoft these days, just make …

05 Aug 2020

Debian as type 1 hypervisor for gaming, part 1

This is my notes of how I got a Gaming VM up and running on Debian. And I just don’t want to do stuff like others, so I am going to run a second VM for my Linux …

05 Aug 2020