Containers have been around for decades, but their adoption has gained momentum quite recently. A container is a software solution that provides an additional layer
Category: System administration
Configuring YubiKey for GPG and U2F
Here is a little walkthrough on how to get started with the YubiKey and GPG. After following this guide you will have a secure setup using a
OpenSSH jump-host and file-transfer
This article was inspired by a previous post on my personal blog: https://www.freeture.ch/?p=815 Intro OpenSSH is a great tool, everybody knows that (even Microsoft). It’s
OpenSSH hardening for cloud machine – Two-factor authentication – part 2
I enthusiastically use two-factor authentication whenever possible because static passwords aren’t the best mechanism to mitigate risk… Traditional passwords are vulnerable to social engineering, key-loggers,
OpenSSH hardening for cloud machine – part 1
SSH is often required to access Linux machines that run on the Cloud infrastructure. SSH is perfect to keep confidentiality and integrity of data exchanged between two
Softraid and crypto for OpenBSD 5.3/5.4
DISCLAIMER: This how-to must be taken as is, it should not replace the official documentation and is not meant to do so. It may be
Kudelski Security Research 