Sometimes the hosts that are used by UCS are not directly accessible and have to be allowed on a gateway or external firewall. The following overview can be used as a reference:
Default Repository Server
host updates.software-univention.de
updates.software-univention.de has address 176.9.114.147
updates.software-univention.de has IPv6 address 2a01:4f8:151:6489::2
Default AppCenter Repository
host appcenter.software-univention.de
appcenter.software-univention.de has address 176.9.114.147
appcenter.software-univention.de has IPv6 address 2a01:4f8:151:6489::2
Default Docker-Repository
host docker.software-univention.de
docker.software-univention.de has address 176.9.114.147
docker.software-univention.de has IPv6 address 2a01:4f8:151:6489::2
Please note that these IP-Adresses may change in the future. Please use the host command to verify.
The following most likely incomplete list contains some repositories that may be needed be be allowed too, depending on service contracts or subscriptions. To access them additional access information is required
Univention customer repository
host service.univention.de
service.univention.de has address 176.9.114.147
service.univention.de has IPv6 address 2a01:4f8:151:6489::2
Open-Xchange customer repository
host software.open-xchange.com
software.open-xchange.com is an alias for wgw-hh2.open-xchange.com.
wgw-hh2.open-xchange.com has address 157.97.76.211
Kopano customer repository
download.kopano.io has address 37.97.167.49
download.kopano.io has IPv6 address 2a01:7c8:aac0:484:5054:ff:fe69:ee18