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Information Systems
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Jun 18, 2024
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docx
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Uploaded by DrProtonFlamingo39
Hello Everyone,
What is the difference between a Windows Authentication
and a SQL Server Authentication?
Windows Authentication uses an integrated security, this means that by utilizing a single sign on a user who is logged into Windows can also log into SQL simultaneously. In this instance, the SQL is relying on the authentication of Windows to validate users. SQL Server Authentication requires that users have their credentials stored on the SQL Server, and when a user requests login they will have to validate their credentials by logging in with the stored username and password.
How does SQL Server perform authentication when a user
connects from a nontrusted connection with a specified logon name and password?
When a user attempts to log in from an untrusted client, the SQL Server Authentication will validate the input username and password against what is stored in the SQL Server. If there is a valid account that matches the input login criteria, the authentication will perform normally and the user will be allowed to log in to the server. If there is an error in authenticating the user, such as incorrect login information or there isn't a valid account against the criteria, then a login error will occur and the user will not be allowed access.
Why is it not advisable to enable the SA account in SQL Server?
Utilizing a defaulted System Administrator (SA) account is not advisable because this account is publicly known and can be easily targeted using readily available information. Disabling this account and creating an effective password policy is a must.
Gupta, R., & Patton, B. (2023, December 19).
SQL Server authentication vs. Windows authentication: Which to use and when
. Quest.
https://blog.quest.com/sql-server-authentication-
vs-windows-authentication-which-to-use-and-when/
Basta, A., & Zgola, M. (2011). Database Security. Cengage Limited.
https://online.vitalsource.com/books/9781305328495
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