!!Enterprise Licenses Only

OTP settings\\
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This settings allows you to configure two factor authentication.  Before two factor authentication will even be considered, you must set the flag "otp_validated_logins" in your prefs.XML file to true.\\
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!1. SMS based:

Using Twilio: https://www.twilio.com/
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The ACCOUNT SID as username and AUTH TOKEN as password:\\
[twilio3.png]
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Url : https://{otp_username}:{otp_password}@api.twilio.com/2010-04-01/Accounts/{otp_username}/Messages.json\\
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Provide your twilio phone number. Checking the "Validated Logins?" will enable to use otp in user login.\\
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[otp_sms.png]\\
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The config will be used only for users which have a phone number and the "Two factor SMS authentication" flag enabled in the User Manager.\\
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[otp_user_settings.png]\\
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!2. Email based:

Email usage requires a SMTP server configured in the Preferences, General Settings area.\\
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Url : SMTP \\
(Just those 4 uppercase letters, nothing else.)
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[otp_email.png]\\
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The config will be used only for users which have an email and the "Two factor SMS authentication" flag enabled in the User Manager.\\
The email can be customized by creating an email template: "Two Factor Auth"\\
This step is required.
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[otp_email_template.png]\\
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Variable for the one time password : {auth_token}\\