RFC9460 is about "Service Binding and Parameter Specification via the DNS (SVCB and HTTPS Resource Records)". The idea is to signal to web browsers that the connection to the server shall be encrypted (similar to HSTS), as well as HTTP protocol preferences: HTTP/3 (QUIC), HTTP/2, fallback to HTTP/1.1. The protocol handshake can thus be performed quicker. The SVCB records allow configuration for load balancing, failover, encrypted ClientHello support, etc.

The proposed DNS record looks as follows:

example.com. IN HTTPS 1 . alpn="h3,h2" ipv4hint="23.209.46.91" ipv6hint="2600:1413:b000:13::b857:c185"

ALPN indicates for protocol preference and fallback. The IP hint may speed up connection performance. In particular when a different "target" is to be used (here it's just ".").

More here.

posted at: 16:20 | path: /configuration | permanent link

It's basically impossible to recover a MicroSD card stuck in a Lenovo X13 Gen1 (AMD) MicroSD card slot. Opening the case (removing the back cover) doesn't help either as the SD card slot is on other side of the system module.

Any ideas? In my opinion a total design failure. I otherwise like the machine.

posted at: 15:48 | path: /rant | permanent link