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3rd-party/curl-7.52.1/docs/cmdline-opts/ntlm.d

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+Long: ntlm
+Help: Use HTTP NTLM authentication
+Mutexed: basic negotiated digest anyauth
+See-also: proxy-ntlm
+Protocols: HTTP
+Requires: TLS
+---
+Enables NTLM authentication. The NTLM authentication method was designed by
+Microsoft and is used by IIS web servers. It is a proprietary protocol,
+reverse-engineered by clever people and implemented in curl based on their
+efforts. This kind of behavior should not be endorsed, you should encourage
+everyone who uses NTLM to switch to a public and documented authentication
+method instead, such as Digest.
+
+If you want to enable NTLM for your proxy authentication, then use
+--proxy-ntlm.
+
+If this option is used several times, only the first one is used.