Ubuntu
systemd package

  1. Bug #1624320
  2. Comment #2

Comment 2 for bug 1624320

Revision history for this message
Anders Kaseorg (andersk) wrote :

DNS resolution outside NSS shouldn’t be dismissed as an edge case for software that’s too conceited to use NSS. NSS only exposes A, AAAA, and PTR records. There’s plenty of software in the official archive that needs other records from DNS (off the top of my head: SRV, TXT, MX, SSHFP, AFSDB) and cannot get them from NSS.

> resolved reads their DNS servers *from* resolv.conf.

Right, so perhaps when resolvconf is in use, systemd-resolved should read those from /run/resolvconf/resolv.conf directly, and /etc/resolv.conf should be a symlink to /lib/systemd/resolv.conf rather than /run/resolvconf/resolv.conf?

> you can't both chose to *not* use NSS *and* rely on NSS to do DNSSEC for you.

Why not? It was working with NetworkManager managing a dnsmasq, since NetworkManager installed the local proxy as the only nameserver visible in resolv.conf, and it would work again if systemd-resolved did the same.

This will also be needed to fix problems like https://github.com/systemd/systemd/issues/3421 for programs that cannot use NSS.