MFA/Azure Multi Factor Authentication (previously PhoneFactor) is a multi-factor authentication technology that can be used with IIS, VPNs, OWA, ADFS, Office 365 and NetScaler to name a few using either the LDAP or RADIUS protocols from Azure cloud or on-premise. MFA has the ability to verify a users identity by calling their phone, texting their phone or using an app for verification. Using a phone for the second factor allows you to make use of something everyone will likely already have without additional bits of hardware whilst making it a great deal harder for attackers to break into accounts.
authentication
nFactor authentication with NetScaler Unified Gateway
nFactor authentication with NetScaler provides a way to configure flexible, agile multi-factor authentication schemas based on factors such as who is connecting and from where users are connecting from or if users fail authentication. This allows NetScaler to provide authentication based on many different use cases and scenarios to provide secure access to backend applications and desktops.
Configuring LDAPS on Citrix NetScaler
If you want to enable LDAP Secure for NetScaler authentication follow the below guide. Using LDAPS allows you to use the Allow password change option on NetScaler so Active Directory users can change their expired passwords. For this reason, and the security advantage, many people opt in to using LDAPS with NetScaler.