Saturday, 6 May 2023

Ubuntu 22.04 installation on VirtualBox using command line

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We use VirtualBox for process of preparing VM images for our product. Sadly some things had to be done manually and we're heading toward...
Thursday, 4 May 2023

sign_and_send_pubkey: signing failed for RSA "PIV AUTH pubkey" from agent: agent refused operatio

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This error is very annoying and it happens when you use Yubikey for ssh auth and by accident you did not click on Yubikey when you did ssh a...
Monday, 1 May 2023

Can Mozilla VPN users connect Mullwad servers directly?

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I've tried to fix my IPv6 compatibility issues by using Mozilla VPN over NAT64 box this way. I've tried to improve this setup but i...

Mozilla VPN without UI on Ubuntu Linux 22.04 over NAT64

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Mozilla VPN service is a really nice service but their UI does not support IPv6 only environment. I use NAT64 box in my network and it does ...
Sunday, 30 April 2023

Yubikey ssh on Ubuntu 22.04

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Today I did full fresh installation of Ubuntu 22.04 to migrate to new 2T NVME disk from Samsung as I had disk space issues with my old 500G ...
Thursday, 13 April 2023

Yubikey ssh and signing failed for RSA "PIV AUTH pubkey" from agent: agent refused operation

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You may face this issue if you use ssh and Yubikey like covered in this guide .  Previously I had to reboot machine to address this issue bu...
Saturday, 8 April 2023

How to enable IPv6 on Google Cloud?

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Google Cloud has native support for IPv6 but you need to create special VPC network to use IPv6. As first step open VPC configuration: Then ...
Sunday, 2 April 2023

Building log4cpp 1.1.4rc3 on msys2 environment on Windows Server 2022

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 I got following error during my attempts to build lo4cpp in msys2 environment: "../include/log4cpp/config-MinGW32.h:27:17: error: ...

Enabling SSH server on Windows 2022 Datacenter edition

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After friend's advice I realised that modern Windows versions have bundled SSH server and that's a best way to work with remote Wind...
Wednesday, 1 February 2023

How to control RGB leds on Logitech G Pro X keyboard from Linux?

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 Official software is coming only for Windows but fortunately we have nice project for it. On Ubuntu or Debian it's very easy to instal...
Saturday, 28 January 2023

Using Radvd to advertise IPv6 prefix for NAT64

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Some time ago I published article about my own NAT64 gateway and configuration for it was quite far away from perfect:  It even looks ugly ...
Saturday, 21 January 2023

Realtek 8153 based USB Ethernet adaptor on Debian Linux

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I received my Lenovo Ethernet USB 3 adaptor based on Realtek 8153 and it identified well on my PC: 4021.908466] usb 1-1: USB disconnect, dev...
Wednesday, 18 January 2023

spotifyd installation Ubuntu Linux 22.04

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First of all, we need to install service which can play music from Spotify. I'll use  Spotifyd . It's relatively easy to build as i...
Sunday, 15 January 2023

CircleCI hardware: January 2023

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I tried to find information about hardware used by CircleCI in Docker and Machine modes but failed to get any up to date information. I'...
Wednesday, 11 January 2023

USB-3 Gigabit 1G Ethernet card

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I'm playing with my SBC Rock64Pro and found myself limited by single Ethernet port. So I decided to find decent Ethernet adapter with US...