Why Do IP Addresses Need to Be allowed?
In order for our services to function properly, your network environment must allow communication with certain servers on the internet. These servers each have a unique “address” called an IP address. Some systems block all not explicitly allowed IP addresses, so you might need to allow IP addresses for our services.
What Do You Need to Do?
If you or your IT department uses a firewall or filtering system (essentially a “doorman” for your network), it needs to be configured to allow traffic to and from the IP addresses listed below.
Only then our services can operate as intended.
Which IP Addresses Need to Be allowed?
Here is a list of all IP addresses required for our services:
Untis (Updates & Crash Reports)
128.204.132.158 ports TCP 80 + 443
217.175.202.26 ports TCP 80 + 443
217.175.202.27 ports TCP 80 + 443
webuntis.com
213.208.138.154 ports TCP 80 + 443
213.208.138.155 ports TCP 80 + 443
213.208.138.156 ports TCP 80 + 443
213.208.138.157 ports TCP 80 + 443
For LDAP queries if you are using your own LDAP server
213.208.138.146
*.app.webuntis.com
217.175.202.213 ports TCP 80 + 443
storage.webuntis.com (Upload and access files on WebUntis)
217.175.203.202 ports TCP 80 + 443
hermes.webuntis.com (receive emails from WebUntis)
213.208.138.150 ports TCP 25, 465, 578
These addresses should be allowed for both inbound and outbound connections.
If you're unsure how to proceed, please share this list with your IT department or system administrator.
Attention: This list can change at any time!
Any Questions?
If you need help or are unsure about anything, don’t hesitate to contact our support team. We’re happy to assist.