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odd resolver issue




Hi.


Two systems on same LAN, let's call them A and B, with domain "localdomain".
Identical /etc/resolv.conf (generated by NetworkManager), including a "search localdomain" line.
Identical /etc/hosts with only localhost aliases in it.

From A:
ping shortnameB (OK)
ping shortnameB.localdomain (OK)

From B:
ping shortnameA (failure?!?!?)
ping shortnameA.localdomain (OK)

Both had DNSSEC turned off because of an annoying bug:
https://github.com/systemd/systemd/issues/10579

B is freshly booted and both are current "testing" setups.

What else should I check?


Thanks,
Andrea.