Use of any other character set requires explicit negotiation. The relevant sections of the Telnet specification regarding FTP are those covering the Network Virtual Terminal (NVT).Īccording to RFC 854, the NVT requires the use of (7-bit) ASCII as the character set. The FTP protocol is designed on top of the original Telnet protocol, which is specified in RFC 854. The FTP protocol is specified in RFC 959, which was published in 1985. Anything else is in violation of the FTP specifications and will only work if you manually ensure that the server and client use the same character encoding (which may not even be possible).
FILEZILLA FTP WINDOWS 8 UPGRADE
If you have problems with other clients or servers, please upgrade (or ask the server to upgrade) to FTP software capable of UTF-8 or refrain from using foreign characters. FileZilla will not break FTP specifications by supporting non-standard encodings in order to accommodate the user. The server or client violates the specifications and uses a custom encoding that the other party does not understandīoth FileZilla Client and Server are fully compliant with the updated specifications and use UTF-8.The server or client follows the original specifications by the letter and rightfully rejects those filenames.If you have problems with filenames containing any foreign characters, this can have two reasons: (This solution is backwards compatible only with servers in compliance with the original specifications.) To solve this problem, the FTP protocol has been extended in a backwards compatible way to use UTF-8 as the character set. The result: non-English characters are not transferred correctly. For any character set in existence, you can find a server using it with no way of detecting the proper encoding. Which of these character sets are used is not subject to any negotiation. The problem is that many FTP clients and servers purposely violate the FTP specifications in order to support other, non-standard character sets. As such, the FTP protocol was designed to be used with English characters only, namely 7-bit ASCII. When the FTP protocol was designed, computers mostly spoke English and were unable to display any non-English characters. One of these things is support for non-English characters in filenames. Users sometimes encounter problems with FTP transfers that garble non-English characters in filenames, such as umlauts, accented letters or completely different scripts like Chinese or Arabic.įTP is a rather old protocol and things we take for granted now were not even considered when it was designed.
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