Windows Server 2022 has improved security, network functions, container support and management tools compared to 2019, as follows: 1. Stronger security, including enabling virtualization-based security (VBS) by default, introducing "Security Core Server" configuration, enhancing LSASS security and disabling legacy TLS protocol by default; 2. New SMB over QUIC support for network functions, enabling remote encrypted access without relying on traditional VPNs, and supporting zero-trust architecture; 3. Enhanced container and cloud integration capabilities, providing lighter mirroring, better support for Kubernetes and Azure Arc; 4. Optimization of management experience, Windows Admin Center integration is more complete, supporting remote management, one-click updates and detailed monitoring.

The difference between Windows Server 2022 and Windows Server 2019 is mainly focused on the improvement of security, network functionality, container support, and management tools. If you are considering upgrading or deploying a new server system, the following aspects are worth paying attention to.

Stronger security: More protection mechanisms are enabled by default

Windows Server 2022 has made a lot of enhancements in terms of security. For example, Virtualization-Based Security (VBS) is enabled by default, which can prevent some kernel-level attacks. In addition, it also introduces a "security core server" configuration, specifically for scenarios with high security requirements.

• Protected subsystems (such as LsaCfg) : Enhances the security of the local security authentication subsystem (LSASS) and reduces the risk of credential theft.
• Stricter encryption protocols : By default, some older protocols (such as TLS 1.0 and 1.1) are disabled, and only TLS 1.2 and 1.3 are enabled, improving security during communication.

If you have high security requirements for servers, the 2022 version does have more advantages in this regard.

Network feature enhancement: SMB over QUIC becomes the highlight

Windows Server 2022 introduces a relatively practical new feature: SMB over QUIC . This technology allows remote users to access file resources over the Internet like accessing local networks, and is encrypted, ideal for remote work or cross-regional connections.

• Secure connections can be achieved without relying on traditional VPNs
• Support Zero Trust Network Architecture (Zero Trust)
• The configuration is relatively simple, only certificates and basic policy settings are required

In contrast, although the SMB function of Windows Server 2019 is stable, it is still based on traditional TCP/IP and traditional VPN methods, and its flexibility is slightly less.

Improved container and cloud integration capabilities

If you are using containers or planning to migrate to the cloud, Windows Server 2022 provides better support:

• Enhanced support for Windows containers, including lighter mirroring (such as Server Core and Nano Server containers)
• Kubernetes-friendly, suitable for running in hybrid cloud environments
• Supports Azure Arc integration, allowing unified management of on-premises and cloud resources

Although Windows Server 2019 also has container functions, its support for lightweight and cloud native is not as mature as the 2022 version.

Slightly optimized management experience

Although the GUI management interfaces of the two are not much different, Windows Admin Center has been better integrated and supported in 2022. You can remotely manage the server through the browser, view performance data, update patches, configure Hyper-V, etc.

• Support one-click installation and update
• Provide more detailed monitoring information
• The plug-in ecosystem is gradually enriching

For small and medium-sized enterprises, these improvements make daily maintenance easier.

Overall, Windows Server 2022 is not an earth-shaking upgrade, but it does take a significant step in security, remote access and cloud integration. Whether to upgrade depends on your specific needs. If the current environment is stable and there are no new features that are particularly needed, you can continue to use the 2019 version.

The above is the detailed content of What are the main differences between Windows Server 2022 and Windows Server 2019?. For more information, please follow other related articles on the PHP Chinese website!