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Internationalized Domain Names (IDN)

SmartFTP uses IDNA (Internationalizing Domain Names in Applications) to support domains with unicode characters. IDNA is a mechanism to represent non-ASCII domains with only ASCII characters. This "feature" is transparently implemented in SmartFTP and domain names with unicode characters are automatically converted to the IDN format.

Examples
http://räksmörgås.josefßon.org

References

1. IDN Convertor Test
2. RFC: Sring Preparation (stringprep)
3. RFC: IDNs in Applications (IDNA)
4. RFC: Name Preparation (nameprep)
5. RFC: Encoding Scheme (punycode)
6. VeriSign IDN Software Development Kit
7. GNU IDN Library