This policy enables users on the network to establish connections with the computer, and it’s necessary for several network protocols such as Server Message Block (SMB), NetBIOS, Common Internet File System (CIFS), and Component Object Model Plus (COM+).

Internet Protocol version 6 (IPv6) is a network layer protocol that facilitates communication across the internet by assigning unique IP addresses to each device for identification and location purposes. With the onset of the digital era in the 1990s, the limitations of IPv4 addresses in accommodating the escalating demand became evident. Consequently, the Internet Engineering Task Force (IETF) embarked on developing the next-generation internet protocol, leading to the emergence of IPv6.

Hardening a Linux server is the process of enhancing its security and reducing its attack surface by applying various configurations, policies, and tools. A hardened Linux server is more resilient to cyber threats and less prone to compromise.

Kubernetes, also referred to as k8s or “kubes,” stands as a portable, extensible, open-source container orchestration platform designed for managing containerized workloads and services. Initially developed by Google based on its internal systems Borg and later Omega, Kubernetes was introduced as an open-source project in 2014 and subsequently donated to the Cloud Native Computing Foundation (CNCF).

A brute-force attack is a trial-and-error method hackers use to guess login information, and encryption keys, or find hidden web pages. In a brute force attack, an attacker tries as many combinations as possible, systematically incrementing through all possibilities until the correct password is discovered. This can be done manually, but it is usually automated using specialized software tools designed for this purpose.

Windows New Technology LAN Manager (NTLM) is an outdated challenge-response authentication protocol developed by Microsoft. Despite being surpassed by Kerberos, NTLM remains in use as a form of Single Sign-On (SSO), allowing users to authenticate to applications without directly providing their passwords.

LAN Manager (LM) authentication level is a security setting that determines how Windows systems authenticate network connections. It is a legacy authentication protocol developed by Microsoft for use in older versions of Windows network operations. There are three main protocols involved in LAN Manager Authentication: The LAN Manager Authentication Level setting allows you to choose which protocols your system will use or accept for authentication.

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.