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Barracuda NextGen Firewall X

Spelling of 'Umlaut Domain Names' in Barracuda NG firewall DNS-Server

  • Type: Knowledgebase
  • Date changed: 3 years ago
Solution #00005212
This solution replies to:
- 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


ö is converted to



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