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On the other hand, I use HE's tunnelbroker for IPv6 and need to prevent AAAA results for Netflix (which blocks HE IPv6 addresses because in theory someone could
by betterunix2 6y ago
On the other hand, I use HE's tunnelbroker for IPv6 and need to prevent AAAA results for Netflix (which blocks HE IPv6 addresses because in theory someone could evade geographic restrictions on streaming). Easy enough since I run my own DNS server. It sounds like systemd might, without any warning, switch to the fallback servers if something goes wrong, only for someone in my house to complain later on when Netflix is not working (meanwhile the underlying problem goes undetected for who knows how long, because everything is using the fallbacks and nobody notices that something went wrong).
- acdha 6y agoThis is a pretty niche edge case: you're enabling a completely unnecessary service and want to tamper with third-party DNS responses, are concerned about something which will only be used if you have multiple DNS servers go down, but don't monitor core network infrastructure or control the settings on those client systems. That's an edge case on an edge case and it's not surprising that they would not prioritize it.
- betterunix2 6y ago...and the case where DNS servers are not configured by DHCP, not configured statically in NetworkManager or resolve.conf, and not explicitly configured in systemd's own DNS config files, is not an edge case? I am not asking that systemd developer "prioritize" anything -- I am asking that they not introduce some new, counterintuitive logic that unexpectedly breaks things.