** Changed in: systemd (Ubuntu)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1624071
Title:
libnss-resolve: Fallback from resolve to dns breaks DNSSEC validation
Status in systemd:
Unknown
Status in systemd package in Ubuntu:
Fix Committed
Bug description:
The libnss-resolve postinst script inserts ‘resolve’ before ‘dns’ in
the hosts line of /etc/nsswitch.conf. This makes DNSSEC validation
impossible, even with DNSSEC=yes in /etc/systemd/resolved.conf,
because if libnss_resolve returns a validation failure, glibc will
simply fall back to libnss_dns. It also makes NXDOMAIN lookups twice
as slow.
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