I use the command below:



curl -3 -v --cacert /home/adm/ssl/certs/cert.pem --disable-epsv --ftp-skip-pasv-ip --ftp-ssl -T "/adm/FILE.TXT" ftp://User:Password@URL:990



Results:



* About to connect() to Ftpsec.mei-tpm.com port 990 (#0)

* Trying 174.143.89.74...

  % Total % Received % Xferd Average Speed Time Time Time Current

                                 Dload Upload Total Spent Left Speed

  0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0* connected

* Connected to Ftpsec.mei-tpm.com (174.143.89.74) port 990 (#0)

  0 0 0 0 0 0 0 0 --:--:-- 0:00:30 --:--:-- 0* response reading failed

* Closing connection #0

curl: (56) response reading failed



Any ideas?



Thanks,



Miguel



-----Original Message-----

From: curl-users [mailto:curl-users-bounces_at_cool.haxx.se] On Behalf Of Paul J. Lucas

Sent: January-08-14 12:43 PM

To: curl-users_at_cool.haxx.se<mailto:curl-users_at_cool.haxx.se>

Subject: curl with ftp URL works for SSL, but ftps URL doesn't: unknown protocol



I compiled and installed ProFTPD on my Mac for testing purposes and generated self-signed SSL certificates because I want to test ftps.



When I do:



    curl --ftp-ssl-reqd --insecure ftp://localhost/hello.txt



it works. I know it actually doing SSL because the tls.log contains:



    Jan 08 07:20:32 mod_tls/2.4.3[81549]: SSL/TLS-P requested, starting TLS handshake

    Jan 08 07:20:32 mod_tls/2.4.3[81549]: client supports secure renegotiations

    Jan 08 07:20:32 mod_tls/2.4.3[81549]: TLSv1/SSLv3 connection accepted, using cipher AES128-SHA (128 bits)

    Jan 08 15:20:32 mod_tls/2.4.3[81549]: Protection set to Private

    Jan 08 15:20:32 mod_tls/2.4.3[81549]: starting TLS negotiation on data connection

    Jan 08 15:20:37 mod_tls/2.4.3[81549]: TLSv1/SSLv3 renegotiation accepted, using cipher AES128-SHA (128 bits)

    Jan 08 15:20:37 mod_tls/2.4.3[81549]: TLSv1/SSLv3 data connection accepted, using cipher AES128-SHA (128 bits)



However, when I instead do:



    curl --insecure ftps://localhost:21/hello.txt



i.e., use ftps as the URL scheme rather than ftp I get:



    curl: (35) Unknown SSL protocol error in connection to localhost:-9800



Why doesn't an ftps URL work? (Explicitly using --ftp-ssl-reqd makes no difference.) Is it a ProFTPD server misconfiguration? An incorrect curl command-line?



BTW: when I do curl -V, I get:



    curl 7.30.0 (x86_64-apple-darwin13.0) libcurl/7.30.0 SecureTransport zlib/1.2.5

    Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtsp smtp smtps telnet tftp

    Features: AsynchDNS GSS-Negotiate IPv6 Largefile NTLM NTLM_WB SSL libz



and ftps is listed as a supported protocol.



(I'd like to get this to work using curl specifically because I'm writing my own ftp client using libcurl; hence I'm testing using command-line curl first.)



- Paul





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Received on 2014-01-08