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FIPS 140-2 Support  -  KB Article #1800

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FIPS 140-2 is a set of rigorously tested encryption specifications set by the National Institute of Standards and Technology (NIST). Enabling FIPS 140-2 mode limits Serv-U to encryption algorithms (ciphers) certified to be FIPS 140-2 compliant and ensures the highest level of security for encrypted connections.

To apply FIPS 140-2 mode to both SSL (FTPS and HTTPS) and SSH (SFTP), check the "Enabled FIPS 140-2 mode" box on the "Encryption" tab via "Server Limits & Settings."

Not all client applications will be able to connect to Serv-U using SSL or SSH when Serv-U is in FIPS 140-2 Mode. This is because FIPS is restricted to specific ciphers and encryption methods which are not supported by all client applications. Tested applications include:

  • SmartFTP - FTPS/SFTP
  • FileZilla - FTPS Only
  • FTP Voyager - SFTP Only
  • Core FTP LE - SFTP Only
  • CuteFTP - No Support
  • WinSCP - No Support
  • WS FTP - No Support
  • Internet Explorer 8 - HTTPS
  • Firefox 3.5 - HTTPS
  • Safari - HTTPS
  • Google Chrome - HTTPS
  • Opera - HTTPS