curl/docs/cmdline-opts/ssl-reqd.d

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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Long: ssl-reqd
Help: Require SSL/TLS
Protocols: FTP IMAP POP3 SMTP LDAP
Added: 7.20.0
Category: tls
Example: --ssl-reqd ftp://example.com
See-also: ssl insecure
Multi: boolean
---
Require SSL/TLS for the connection. Terminates the connection if the transfer
cannot be upgraded to use SSL/TLS.
This option is handled in LDAP since version 7.81.0. It is fully supported
by the OpenLDAP backend and rejected by the generic ldap backend if explicit
TLS is required.
This option is unnecessary if you use a URL scheme that in itself implies
immediate and implicit use of TLS, like for FTPS, IMAPS, POP3S, SMTPS and
LDAPS. Such transfers will always fail if the TLS handshake does not work.
This option was formerly known as --ftp-ssl-reqd.