What is Multi Factor Authentication (MFA)

Multifactor authentication (MFA) is a security system in which more than one form of authentication is implemented to verify the legitimacy of a transaction. In contrast, single factor authentication (SFA) involves only a user ID and password.

In two-factor authentication, the user provides dual means of identification, one of which is typically a physical token, such as a card, and the other of which is typically something memorized, such as a security code.

Additional authentication methods that can be used in MFA include biometric verification such as fingerscanning, iris recognition, facial recognition and voice ID. In addition to these methods, smart cards and other electronic devices can be used along with the traditional user ID and password.

Handling Different timezones in distributed environment

This was a captivating discussion on how timezones in distributed environment should be handled. There are a couple of good strategies recommended.

Scenario: Having db server in different time zone and process server / engine, which is going to run lively like auctions/bidding in different time zone.

Recommended Solution

Store dates in GMT format and format them as required at the various endpoints.

• User prefered timezone - used whenever date displayed to user, entered by user and validated.
• User machine timezone - could be used to determine user preferred timezone and local logging in case of rich client
• Server timezone - used for local logging
• Database timezone - should be irrelevant.
• Common timezone (GMT normally but it does not really matter) - used for dates stored in database, interserver communication, centralized logging, etc)