- NG Firewall firmware versions 4.2.x, 5.0.x, 5.2.x
- netfence firmware versions 4.2.x
German special characters cannot be entered in the domain and hostname fields of the Barracuda NG firewall DNS-Server.
The user interface of the Barracuda NG firewall DNS-Server currently doesn't allow insertion of German special characters (e.g. "TM", "ö", "ü").
Convert the Umlaut Domain Name to Punycode. A Pucycode-Converter can be found at http://www.nic.at/de/service/idn/pk_punycodeconv.asp
österreich.at is converted to xn--sterreich-z7a.at