Hi,
The same thing is happening with unbound. This issue may be affecting
other services involving IPv6.
2025-08-21T16:46:50.802152-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
Starting unbound.service - Unbound DNS server...
2025-08-21T16:46:50.822538-03:00 DNS-RECURSIVO-02-STZ (unbound)[977]:
unbound.service: Referenced but unset environment variable evaluates to
an empty string: DAEMON_OPTS
2025-08-21T16:46:50.837820-03:00 DNS-RECURSIVO-02-STZ unbound[977]: Aug
21 16:46:50 unbound[977:0] error: can't bind socket: Cannot assign
requested address for 2804:XXXX:40:0:189:XXXX:159:83 port 53
2025-08-21T16:46:50.837885-03:00 DNS-RECURSIVO-02-STZ unbound[977]: Aug
21 16:46:50 unbound[977:0] fatal error: could not open ports
2025-08-21T16:46:50.839261-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
unbound.service: Main process exited, code=exited, status=1/FAILURE
2025-08-21T16:46:50.854375-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
unbound.service: Failed with result 'exit-code'.
2025-08-21T16:46:50.854615-03:00 DNS-RECURSIVO-02-STZ systemd[1]: Failed
to start unbound.service - Unbound DNS server.
2025-08-21T16:46:50.859030-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
unbound-resolvconf.service - Unbound asyncronous resolvconf update
helper was skipped because of an unmet condition check
(ConditionFileIsExecutable=/sbin/resolvconf).
2025-08-21T16:46:50.963924-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
unbound.service: Scheduled restart job, restart counter is at 1.
2025-08-21T16:46:50.966427-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
Starting unbound.service - Unbound DNS server...
2025-08-21T16:46:51.028833-03:00 DNS-RECURSIVO-02-STZ (unbound)[1008]:
unbound.service: Referenced but unset environment variable evaluates to
an empty string: DAEMON_OPTS
2025-08-21T16:46:51.034365-03:00 DNS-RECURSIVO-02-STZ unbound[1008]: Aug
21 16:46:51 unbound[1008:0] error: can't bind socket: Cannot assign
requested address for 2804:XXXX:40:0:189:XXXX:159:83 port 53
2025-08-21T16:46:51.034441-03:00 DNS-RECURSIVO-02-STZ unbound[1008]: Aug
21 16:46:51 unbound[1008:0] fatal error: could not open ports
2025-08-21T16:46:51.035461-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
unbound.service: Main process exited, code=exited, status=1/FAILURE
2025-08-21T16:46:51.050773-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
unbound.service: Failed with result 'exit-code'.
2025-08-21T16:46:51.051016-03:00 DNS-RECURSIVO-02-STZ systemd[1]: Failed
to start unbound.service - Unbound DNS server.
2025-08-21T16:46:51.052126-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
unbound-resolvconf.service - Unbound asyncronous resolvconf update
helper was skipped because of an unmet condition check
(ConditionFileIsExecutable=/sbin/resolvconf).
2025-08-21T16:46:51.401249-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
unbound.service: Scheduled restart job, restart counter is at 2.
2025-08-21T16:46:51.402439-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
Starting unbound.service - Unbound DNS server...
2025-08-21T16:46:51.453759-03:00 DNS-RECURSIVO-02-STZ (unbound)[1020]:
unbound.service: Referenced but unset environment variable evaluates to
an empty string: DAEMON_OPTS
2025-08-21T16:46:51.459656-03:00 DNS-RECURSIVO-02-STZ unbound[1020]: Aug
21 16:46:51 unbound[1020:0] error: can't bind socket: Cannot assign
requested address for 2804:XXXX:40:0:189:XXXX:159:83 port 53
2025-08-21T16:46:51.459742-03:00 DNS-RECURSIVO-02-STZ unbound[1020]: Aug
21 16:46:51 unbound[1020:0] fatal error: could not open ports
2025-08-21T16:46:51.460793-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
unbound.service: Main process exited, code=exited, status=1/FAILURE
2025-08-21T16:46:51.473953-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
unbound.service: Failed with result 'exit-code'.
2025-08-21T16:46:51.474173-03:00 DNS-RECURSIVO-02-STZ systemd[1]: Failed
to start unbound.service - Unbound DNS server.
2025-08-21T16:46:51.475419-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
unbound-resolvconf.service - Unbound asyncronous resolvconf update
helper was skipped because of an unmet condition check
(ConditionFileIsExecutable=/sbin/resolvconf).
2025-08-21T16:46:51.824571-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
unbound.service: Scheduled restart job, restart counter is at 3.
2025-08-21T16:46:51.825656-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
Starting unbound.service - Unbound DNS server...
2025-08-21T16:46:51.878177-03:00 DNS-RECURSIVO-02-STZ (unbound)[1031]:
unbound.service: Referenced but unset environment variable evaluates to
an empty string: DAEMON_OPTS
2025-08-21T16:46:52.109339-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
Started unbound.service - Unbound DNS server.
2025-08-21T16:46:52.109552-03:00 DNS-RECURSIVO-02-STZ systemd[1]:
unbound-resolvconf.service - Unbound asyncronous resolvconf update
helper was skipped because of an unmet condition check
(ConditionFileIsExecutable=/sbin/resolvconf).
