Abstract:

With the popularization of Internet applications and the rapid development of IT technologies, Microsoft continuously launches new versions of Windows to keep up with changed circumstances of network security and diversification of network applications. It can be seen that Microsoft has made its greatest effort to enhance OS security. At same time, Microsoft has conducted a great deal of work to improve network security and performances in network applications. To this end, based on the following two new versions , Windows Server 2012 and Windows Server 2012 R2, this paper discusses and analyzes the improvements on performance and security in terms of network connection and data transmission, focusing on Windows firewall, DCTCP, Windows Web server(IIS), remote access mechanism, Windows DNS and DHCP servers, and Hyper-V network virtualization, etc. Nevertheless, a rising tide lifts all boats, diversified novel applications introduce new bottlenecks, and more sophisticated attack technologies lead to new threats to network applications. Consequently, continuous improvement and enhancement is a never-ending process.

Key words: Windows Server 2012, network connection, data transmission, network security