Month: November 2025

I’ve seen rumours Nextdns not supporting DoQ. This is true if you’re talking of DoH3 (which also uses udp/quic on Layer 4) at least last time I checked a couple of months ago. Nextdns does support DoQ (RFC 9250). It’s propably your OS or configuration that doesn’t support system-wide DoQ on Port 853, UDP. Runs … Read More “NextDNS with DoQ on Port 853” »

I have to change ip, netmask etc on 30+ virtual machines, what’s the best strategy to limit issues ? My idea: 1) add a secondary vnic with the new VLAN on each server 2) create new A records in the DNS and wait sync 3) remove the old vnic connected to the old vlan 4) … Read More “Change ip: DNS strategies” »