This policy setting determines if RPC clients authenticate with the Endpoint Mapper Service when their call includes authentication data. The Endpoint Mapper Service on Windows NT4 (all service packs) is unable to process authentication data provided in this manner. Disabling this policy means RPC clients won’t authenticate with the Endpoint Mapper Service, but they can still communicate with it on Windows NT4 Server. The recommended state for this setting is: Enabled.

Orphaned users in SQL Server arise when a database user is associated with a login in the master database that no longer exists and should be removed. This situation can happen when the login is removed or when the database is transferred to a different server lacking the corresponding login. The SQL Server logins existing on a server instance can be seen through the sys.server_principals catalog view and the sys.sql_logins compatibility view.

Secure Boot constitutes a vital component within modern Windows servers and client devices, forming an integral aspect of the Unified Extensible Firmware Interface (UEFI) specification. Its primary function involves the validation of trusted software components during the boot process, thereby fortifying system security against diverse malware and unauthorized software infiltrations.

Anonymous logon refers to a type of network access where a user can log in to a system or network resource without providing any authentication credentials such as a username or password. This type of access is typically granted to allow basic, unauthenticated access to certain resources for public use or for specific purposes.

The “Network access: Restrict clients allowed to make remote calls to SAM” security policy setting manages which users are permitted to view the list of users and groups stored in both the local Security Accounts Manager (SAM) database and Active Directory through remote calls. This policy setting allows you to restrict remote RPC connections to SAM. If not selected, the default security descriptor will be used.

Cipher suites are a set of cryptographic algorithms utilized by the schannel SSP implementation of TLS/SSL protocols. These algorithms are employed to generate keys and encrypt data. Each cipher suite designates specific algorithms for the following functions: In TLS 1.2 and TLS 1.3, the NSA suggests using cryptographic settings that meet the standards in CNSSP 15, known as Commercial National Security Algorithms.

Kernel Direct Memory Access (DMA) Protection is a security feature in Windows designed to prevent unauthorized access to memory by external peripherals. Kernel DMA Protection requires UEFI firmware support, and Virtualization-based Security (VBS) isn’t required. Kernel DMA Protection offers enhanced security measures for the system compared to the countermeasures against BitLocker DMA attacks, all while preserving the usability of external peripherals.

Windows permits an anonymous user to carry out specific actions, such as listing the names of domain accounts and network shares. This functionality proves useful in scenarios when an administrator needs to provide access to users in a trusted domain lacking a reciprocal trust agreement. By default, the Everyone security identifier (SID) is excluded from the token generated for anonymous connections. Consequently, permissions assigned to the Everyone group don’t extend to anonymous users.

The SQL Server Audit object gathers individual occurrences of server or database-level actions and sets of actions for monitoring purposes. This audit operates at the SQL Server instance level, allowing for multiple audits per instance. Upon defining an audit, you designate the destination for result output. Before beginning a SQL Server audit pay attention to the limitations and restrictions associated with database audit specifications.

Interactive logon: Machine inactivity limit is among the 9 Interactive logon security settings. If a user hasn’t been active on their Windows session for a while and surpasses the set limit, this setting typically controls the duration of inactivity allowed before the user is automatically logged out of their session on a machine. The recommended state for this setting is: 900 or fewer second(s), but not 0.