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| Author | Forum: PowerTCP SSL for ActiveX Topic: 521 PROT P required |
| phlexss From: Waalwijk, Netherlands Posts: 31 Member Since: 03/17/04 |
posted January 25, 2011 4:53 PM When I connect to an FTPS server with DART SSL FTPS ActiveX I get the message: 521 PROT P required What does this mean? |
| Nick B (Admin) From: Utica, NY USA Posts: 619 Member Since: 05/25/10 Extra Support Options Custom Application Development |
posted January 26, 2011 9:57 AM Hello, This indicates that your server requires the Data Connection Security Negotiation to use Private. See the RFC for more details: http://www.faqs.org/rfcs/rfc4217.html The latest version of our FTP control (which includes security) will automatically send the PROT P command if Authentication is set to atExplicitNormal, atSecureData, atImplicitNormal, or atImplicitLogin. If you are interested in upgrading, please contact sales@dart.com Depending on your version of our control, you may be able to send this before any data port is opened to use PROT P (and Authentication is set to any of the aforementioned values): SecureFtp1.Command "PBSZ 0", result SecureFtp1.Command "PROT P", result ------ |
| Nick B (Admin) From: Utica, NY USA Posts: 619 Member Since: 05/25/10 Extra Support Options Custom Application Development |
posted January 26, 2011 10:01 AM Please also see this post for more information on sending the PBSZ and PROT P commands: http://support.dart.com/postings?topicid=7549 |
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