Last summer I joined the DN42 virtual network. Here is at last my experience in DN42.

Linux network namespaces only separates the network. Docker/LXC separates everything. With frankenstein containers, you reuse the host OS binaries, thus keeping disk usage low without compromising on isolation.

How to use HTTP/3 in a corporate network (or in DN42)

HTTP/3 requires TLS. But browsers also impose an additional requirement: they refuse private or self-signed certificate.

What if you wanted to set up a site-to-site VPN but you cannot access the admin interface of your router ? With IPv6 stateless autoconfiguration ‘radvd), your VPN router can announce its route to other clients without requiring admin access on the main router.

How to use a single Traefik for Docker, Kubernetes and regular webservers

NILFS2 is a fairly obscure filesystem that has a very cool feature derived from its design: constant snapshotting.

But is seems that very few people use it in a desktop setting, and thus few tools exist to use it, compared to BTRFS or LVM snapshots.

Using it to create and mount snapshots requires root access, and is not practical.

I created a binary and helper script to facilitate the everyday use of a NILFS2 filesystem.

Internet Multiplayer minecraft on your LAN world, without hamachi or VPNs

how to download an online map to MBtiles format

review and comparison against a Moto G5+

Want to copy/paste between your phone and laptop ? You can use QR codes right in your terminal !

I switched my hosting to Oracle Cloud, to make use of its ARM processors on the advantageous free tier

Authenticate with face recognition AND fingerprint, with password as a fallback

Serve your Ghost blog over Gemini

Explanations about the CSS-only animations of this blog (only on displayed on wide screens)

Using Traefik reverse-proxy for Gemini, based on the TLS SNI, without any SSL termination

I remembered that with GitHub Education, you can get interesting deals, like credit for DigitalOcean and Microsoft Azure. You can see where this is going… migrating to the next cloud provider with free credit

Using a Logitech G203 LightSync as a battery level indicator. If you don’t care for RGB, you can use it for something useful instead of turning it off.

nip.io alternative, useful for internal networks

the DNS record «SSHFP» can store SSH server keys, so you don’t get security warning when connecting from new devices

Vous vous êtes toujours demandé comment marche un serveur web chez un hébergeur ? Vous voulez votre site hébergé chez vous, vos données chez vous au lieu de chez Google?