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Related Articles
Regular Expressions (Reference)
Example - Authentication with SMS
In this article:
Prerequisites for Sending OTPs by SMS
Step 1. Configure the SMTP Server
Step 2. Configure the OTP Settings
Step 3. (If Sending OTPs via SMS) Configure the SMTP to SMS Service
Prerequisites for Sending OTPs by SMS
If you want to send OTPs by SMS:
You must have an account for an SMTP to SMS service that can send SMS to cell phones in your country
Determine the address format for sending SMS over email. Each service provider uses a different format.
Every user must have the mobile.number attribute set.
Step 1. Configure the SMTP Server
Configure the SMTP server that will be used to send the OTPs.
Select the user database that you want to configure the SMTP server for. To configure an SMTP server for all user databases, select Glo
.
bal View
Go to the
page.
Manage System > BASIC > Configuration
In the
section, enter the settings for your SMTP server.
SMTP
Click
.
Save Changes
Step 2. Configure the OTP Settings
Specify when OTPs are sent, how they are sent, and what kind of OTPs are generated by the Barracuda SSL VPN.
Go to the
page.
Manage System > ACCESS CONTROL > Security Settings
In the
section, configure the following settings:
One-Time Password
Send Mode – Select
to send the OTP during user logins.
At Login
Method of password delivery – You can select either
to send the OTP via email or
to send the OTP to
SMS over Email
users' cell phones.
Generation Type – Select the type of OTP that you want the appliance to generate. If you experience problems with character
encoding in your emails or SMS, select
.
ASCII
Click
.
Save Changes
If you configured the Barracuda SSL VPN to send OTPs by email, no additional configurations are required. When the appliance sends an OTP, it
obtains the email address of the user from the user database.
Step 3. (If Sending OTPs via SMS) Configure the SMTP to SMS Service
If you
information
configured the Barracuda SSL VPN to send the OTPs by SMS, provide the
required to connect with the SMTP to SMS service
that you are using.
Open the
page.
Manage System > ACCESS CONTROL > Configuration
In the
section, enter the following information, depending on the requirements of your SMTP to SMS service provider:
SMS
SMS Gateway Address – The email address for the SMS gateway. A common example would be:
${userAttributes.mobi
leNumber}@example.com
SMS Provider Credentials – Usually the credentials and the text are entered here.
Click
.
Save Changes
How to Configure Public Key Authentication
The public key authentication module is a very secure authentication mechanism, combining a client certificate and a passphrase with the
possibility to store the authentication keys on an external storage device. No external services or appliances are needed, all keys are generated