.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
-.\" * are also available at http://curl.haxx.se/docs/copyright.html.
+.\" * are also available at https://curl.haxx.se/docs/copyright.html.
.\" *
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
.\" * copies of the Software, and permit persons to whom the Software is
limits what protocols libcurl may use in a transfer that it follows to in a
redirect when \fICURLOPT_FOLLOWLOCATION(3)\fP is enabled. This allows you to
limit specific transfers to only be allowed to use a subset of protocols in
-redirections. By default libcurl will allow all protocols except for FILE and
-SCP.
+redirections.
+
+By default libcurl will allow all protocols on redirect except several disabled
+for security reasons: Since 7.19.4 FILE and SCP are disabled, and since 7.40.0
+SMB and SMBS are also disabled. \fICURLPROTO_ALL\fP enables all protocols on
+redirect, including those disabled for security.
These are the available protocol defines:
.nf
CURLPROTO_SCP
CURLPROTO_SFTP
CURLPROTO_SMB
+CURLPROTO_SMBS
CURLPROTO_SMTP
CURLPROTO_SMTPS
CURLPROTO_TELNET
CURLPROTO_TFTP
.fi
.SH DEFAULT
-All protocols except for FILE, SCP and SMB.
+All protocols except for FILE, SCP and since 7.40.0 SMB and SMBS.
.SH PROTOCOLS
All
.SH EXAMPLE