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Re: what the error "ldap_sasl_interactive_bind_s: Unknown authentication method (-6)" means?
- To: Peter Sui <peters@qnext.com>, openldap-technical@openldap.org
- Subject: Re: what the error "ldap_sasl_interactive_bind_s: Unknown authentication method (-6)" means?
- From: Michael Ströder <michael@stroeder.com>
- Date: Mon, 13 Jan 2020 21:21:46 +0100
- Autocrypt: addr=michael@stroeder.com; prefer-encrypt=mutual; keydata= mQENBFbdnRoBCADj0vYA4aRwKJ6AE4mf8oElLgMT/1eLNKpJ2FYBWcwj9d8dTk5/p9b8DRxy S/qQIUUZqt9xRFZwUCm0vFeQMRDeN9xzAKoRzrJifoDOacOjG1lhZTKYvVZGgUT89Ao3QeHh Q7gPzcAKNoueoR2y3FXStOYuRrbk5PlSjVAITjsotgc7PWE9mmVYpeu8a+byK/DBHKUyolOA 1UXYvDa7MbPhMtdNm8qnwtKs1Vsyk1VkErM+5cIe+zTT6WYQcmZMRjCtWGiFTzk9W6Mdlskk WRTKhKNgokTsgcy1ecaCBUZWxv/SyXgD81+rwRi9b8Px+1reg43ayxi8sV7jrI1feybbABEB AAG0J01pY2hhZWwgU3Ryw7ZkZXIgPG1pY2hhZWxAc3Ryb2VkZXIuY29tPokBNwQTAQgAIQUC Vt2dGgIbAwULCQgHAgYVCAkKCwIEFgIDAQIeAQIXgAAKCRAH3HrjaovJOFpTCACjO773gcmJ KvzjiNpUFl/gANyaJgIq4VbMQ7VthRb1F9X6YbdJ6Z99ntyESjGFCpjofcSomr2vJDpv6ht+ lY33yo20YwsMpqe2OeId0jPybG+FtabKjgBNoAk7iqnBGUvE4t0dz0n1LQVCQR2jxyTKmcNq OYpsRZ3H+6kWwJMuVgsNZglINVZ8JgV5QuLYN5jhYz+pOuFnU11bV6nWREvzZXzebe7g7Zus 6AsWjtJ0lDvgBNzLlF3/eFrVch6Bejs0SvuFseIdZQk+4YU6Rb8xul/jDFXIfo7eTmijO3dV T5AmC1cUi8czncwpgAJnEH8vYv23RoN/aw2gSMCS2huIuQENBFbdnRoBCAC7L1cTVBVZZuM/ yxSUM5CsgGBlTD1Cr7C2ngZFsHSYXVLq6NUB8GZA2iLK96CrwnFw4/Jjz4llOjc50iVRMQKL RyFWOJAMrpPq2ew5T+Uoo524D//dwVbqkFVVuvM8NPiKIDyPGCjP+acM1D8hXwhOXgQ8Iz8Q 3/GRSYjitn9JrkF0ia2nhariznBKVu0LDffxF/hOCx45+QRR2/rYYlshfZMB7nEJX9P+hVfM CSzltz9Z8CldeUbiJvnyrISReR2XBw9oh8JkIUP0BtpIaify9A7EfzOk+W9BUnWe+YwdSUsB fJxOhSv+umyW5GMqZGFu+4oYnkzbe+1LUs1JarCtABEBAAGJAR8EGAEIAAkFAlbdnRoCGwwA CgkQB9x642qLyTjEUgf+JX6Atatl/QKe37yCj1OZYNPd3B0rPLJRF5mEmrADRXLZC9+uFeDS Wxxln040gnR6rjBHrRcvVmlTDiZY26iuL16+V+0/aZ9uyXNQSzk2cwDSiI/8gvr72Y+FN5fh cGXpeNHxHilYc9onzDhxyE76cwzqTKm4q2ULIH2u9IHQ5O86Fv6nHPYhe2fy1bhQapNwi/Xl 3G3i2WNH/w7m+1zWU1IddZOjmXzoxLT1BATwXGa0Tt5RjVb2mM1Wg3Zj6kqFkF2vvKcvrwj0 q0Ap5uyfN5m0uWzQMCMoaV9HQf7f5MkS1lnwBqDgnojjVAieX5uk7olUiRuPKHMfhvXulYP8 AA==
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- In-reply-to: <CAKVbK+p1Up9jxOk0hN=ihb7yf0QBbD_Xf0Y5=Db1u3Q98+j1Jg@mail.gmail.com>
- References: <CAKVbK+p1Up9jxOk0hN=ihb7yf0QBbD_Xf0Y5=Db1u3Q98+j1Jg@mail.gmail.com>
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On 1/13/20 9:16 PM, Peter Sui wrote:
> I'm trying to test SASL EXTERNAL to an AD server, which saying support
> EXTERNAL.
> the command I ran is:
> ldapwhoami -H ldap://example.com:389 <http://example.com:389> -YEXTERNAL
> but it returned:
> ldap_sasl_interactive_bind_s: Unknown authentication method (-6)
> additional info: SASL(-4): no mechanism available:
> what does this error message mean?
It means that SASL mechanism EXTERNAL cannot work in that context.
SASL/EXTERNAL uses whatever suitable authentication information is
available at transport layer: Either the Unix peer credentials in case
of ldapi:// or TLS client certs.
If you're not using one of the above SASL/EXTERNAL cannot work
Ciao, Michael.