1--- 2c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 3SPDX-License-Identifier: curl 4Long: anyauth 5Help: Pick any authentication method 6Protocols: HTTP 7Category: http proxy auth 8Added: 7.10.6 9Multi: mutex 10See-also: 11 - proxy-anyauth 12 - basic 13 - digest 14Example: 15 - --anyauth --user me:pwd $URL 16--- 17 18# `--anyauth` 19 20Figure out authentication method automatically, and use the most secure one 21the remote site claims to support. This is done by first doing a request and 22checking the response-headers, thus possibly inducing an extra network 23round-trip. This option is used instead of setting a specific authentication 24method, which you can do with --basic, --digest, --ntlm, and --negotiate. 25 26Using --anyauth is not recommended if you do uploads from stdin, since it may 27require data to be sent twice and then the client must be able to rewind. If 28the need should arise when uploading from stdin, the upload operation fails. 29 30Used together with --user. 31
