Self-Hosting Threema Web

If you use Threema, you probably know of the "Threema Web" feature.But did you know it's open source? So what's Threema Web? It's basically a web application, that connects with your phone and allows you to chat on your desktop through the browser. You can see all your chats in [...]

By |2021-07-24T18:36:51+02:00October 19th, 2019|Tech Support, Wiki|0 Comments

So, how to 2FA then?

A quick update to -or continuation of- my previous post. FIDO U2F and FIDO2 FIDO U2F is a hardware-based second factor authentication which requires you to plug in a USB key (or NFC on phone) to authenticate against a website. It works on all major desktop browsers and does not [...]

By |2019-10-19T15:12:49+02:00October 19th, 2019|Review, Update, Wiki|0 Comments

Virtualization on Windows

Now that we covered virtualization on Mac, let's go over to Windows! Microsoft Hyper-V If you have Windows 10 Pro or better (includes Education and Enterprise), then you already have a native virtualization option on board! To enable it, simply open a PowerShell as administrator and type in following command: [...]

By |2019-10-12T10:23:54+02:00October 12th, 2019|Review, Tech Support, Wiki|1 Comment

Virtualization on Mac

Just a quick one to share some options on virtualization on Mac. VMware Fusion Pro Although paid software, this is what I recommend going for, especially if you want to virtualize an ancient OS. Unlike some alternatives VMware provides drivers even for some ancient guest OS, so you can run [...]

By |2019-10-11T23:36:14+02:00October 11th, 2019|Tech Support, Wiki|0 Comments

Linux full-disk-encryption

Just wanted to share a one-liner on how to encrypt a device,partition or volume with cryptsetup (dm-crypt/luks)and options to get you started! The idea is simple: You create a crypto container on a disk/partition/volume/file/whatever, you then unlock that container, and then mount that container to a folder. When you're done [...]

By |2023-08-26T20:47:31+02:00October 9th, 2019|Tech Support, Wiki|3 Comments

OpenVPN clients: A list

Here's a list of OpenVPN clients I recommend for various platforms. Windows Use the official open source community client. https://openvpn.net/community-downloads/ Mac Use the open source Tunnelblick client which is both OpenVPN and GUI in one app. https://tunnelblick.net/ Linux Use your distribution package or compile OpenVPN from source. https://wiki.debian.org/OpenVPNhttps://fedoraproject.org/wiki/Openvpnhttps://wiki.archlinux.org/index.php/OpenVPN Android I [...]

By |2020-03-22T18:37:28+01:00October 6th, 2019|RoadWarrior, Tech Support, Wiki|0 Comments

How to SSH with GPG (and smart card)

Useful to use SSH securely using a smart card / hardware token / yubikey / etc. Prerequisites Of course, you need to have GPG installed on your system, and possibly some drivers and applications to support your smart card / hardware token if used. This guide assumes you already have [...]

By |2021-05-16T19:46:47+02:00September 13th, 2019|Tech Support, Wiki|0 Comments

Hardened GPG config

This is just a quick post to share a hardened gpg.conf Usually stored in ~/.gnupg/gpg.conf personal-cipher-preferences AES256 AES192 AES personal-digest-preferences SHA512 SHA384 SHA256 personal-compress-preferences ZLIB BZIP2 ZIP Uncompressed default-preference-list SHA512 SHA384 SHA256 AES256 AES192 AES ZLIB BZIP2 ZIP Uncompressed cert-digest-algo SHA512 s2k-digest-algo SHA512 s2k-cipher-algo AES256 charset utf-8 fixed-list-mode no-comments no-emit-version [...]

By |2019-09-13T09:56:16+02:00September 13th, 2019|Tech Support, Wiki|0 Comments
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