(Introduce the needs of the company's network application, specifically introduce the Windows network interconnection solution, the shared Internet access solution for small and medium-sized companies, the server and firewall solution based on ISAServer2006, the distributed file system and file server application examples in WindowsServer2003R2, and the small and medium-sized companies. E-mail solution, web space provider's e-mail system solution, company-level e-mail system solution, company information protection instance based on RMS rights management service, office automation system solution, server storage security and server quantity management Completion of network projects such as solutions, domain name and space provider solutions, and diskless Windows98/2000 network solutions. Each chapter of this book presents a complete case from a practical application scenario, which specifically introduces the need for analysis, product selection, specific implementation steps, and application and protection after implementation, helping readers to improve the actual combat needs of dealing with company network applications. talent. The content of this book has strong practicability and maneuverability. This book is suitable for network administrators, system protection personnel, network engineering personnel and network technology enthusiasts who have a certain network knowledge foundation. In addition, this book can also be used as an educational book for colleges and universities and related training organizations.)