What type of hardware are you using: Virtual machine
What YunoHost version are you running: 12.1.36
How are you able to access your server: SSH
Direct access via physical keyboard/screen
Are you in a special context or did you perform specific tweaking on your YunoHost instance ?: removed IPv4 address vom network card and added “nameserver ::1” in resolv.conf
Describe your issue
Apart from the loopback, there is only one network card in the server. I removed the IPv4 address from the network card to force Yunohost to use IPv6. This is because IPv4 is already in use for the productive Yunohost environment. I wanted to use only IPv6 for the test environment, as I have a dual-stack connection and am therefore assigned a real public IPv6 address by my ISP.
Share relevant logs or error messages
args:
domain: maindomain.tld
dry_run: false
force: true
ended_at: 2025-12-04 09:55:15.166887
error: “Konnte die IP-Adresse f\xFCr DynDNS nicht aktualisieren”
interface: cli
operation: dyndns_update
parent: null
related_to:
-
- domain
- maindomain.tld
-
- domain
- maindomain.tld
started_at: 2025-12-04 09:55:13.703269
started_by: ******
success: false
yunohost_version: 12.1.36
============
2025-12-04 10:55:14,738: INFO - Update needed, going on…
2025-12-04 10:55:14,836: DEBUG - Reusing IPv4 from cache: None
2025-12-04 10:55:14,836: DEBUG - Reusing IPv6 from cache: xx:xx:xx:xx:xx:xx
2025-12-04 10:55:15,161: DEBUG - Formating result in ‘export’ mode
2025-12-04 10:55:15,165: DEBUG - Now pushing new conf to DynDNS host…
2025-12-04 10:55:15,165: DEBUG - id 48878
opcode UPDATE
rcode NOERROR
flags
;ZONE
ynh.fr. IN SOA
;PREREQ
;UPDATE
maindomain.tld. ANY ANY
maindomain.tld. ANY ANY
maindomain.tld. ANY ANY
mail._domainkey.maindomain.tld. ANY ANY
_dmarc.maindomain.tld. ANY ANY
*.maindomain.tld. ANY ANY
maindomain.tld. ANY ANY
maindomain.tld. 3600 IN AAAA xx:xx:xx:xx:xx:xx
maindomain.tld. 3600 IN MX 10 diem25
maindomain.tld. 3600 IN TXT “v=spf1 a mx -all”
mail._domainkey.maindomain.tld. 3600 IN TXT “v=DKIM1; h=sha256; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC0Tx+xP691hzS0+iX4LNxLvYUKcfdJGPsxXGVhtTE+Ouv6xX837kNyvW/D3zcrflZHmfamTGSn1nU+NUvUMPAK9NeZsv4KjybWqCOmhL5rh/QBU5XA0V5ZpgeWdAi89Xar3WZ2S+UPtz+CBeM1RZaY0NQ4vDzpe9aVmzHJrPnnUQIDAQAB”
_dmarc.maindomain.tld. 3600 IN TXT “v=DMARC1; p=none”
*.maindomain.tld. 3600 IN AAAA xx:xx:xx:xx:xx:xx
maindomain.tld. 3600 IN CAA 0 issue “letsencrypt.org”
;ADDITIONAL
2025-12-04 10:55:15,166: ERROR - [Errno 101] Network is unreachable