> > It is now; I've requested of IANA that "ftp" be registered as one of the > > accepted ALPN extension names; see: > > Ah, neat. Our code is too hardcoded for the HTTP variations for ALPN still > though so in our case holding off ALPN for ftp makes sense. And I guess > ftp is there more for completeness rather than ftp servers actually offering > multiple protocols behind TLS.
Technically it'd be possible to offer SFTP over TLS (rather than over SSH); an FTP server might also offer rsync over TLS. But those, I think, would be quite rare. I added support for "ftp" as an NPN/ALPN to ProFTPD's mod_tls module strictly to enable Chrome's TLS False Start when making TLS connections (and hopefully make for less latent FTP data transfers), per: https://www.imperialviolet.org/2012/04/11/falsestart.html Cheers, TJ ------------------------------------------------------------------- List admin: https://cool.haxx.se/list/listinfo/curl-library Etiquette: https://curl.haxx.se/mail/etiquette.html
