When it comes to network programming, you need to use a few common methods

1. Special attribute in ASP.NET: Get the name of the server computer: Page.Server.ManchineName Get user information: Page.User Access to the client computer name: Page. Request. UserHostName Access to the client computer IP: Page. Request. UserHostAddress

2. General approach in network programming: Gets the current computer name: static System. Net. Dns. GetHostName () According to the computer name withdrawing all IP address: static System. Net. Dns. Resolve (computer) AddressList Also can according to IP address to take out the computer name: static System. Net. Dns. Resolve (IP address). HostName

3. Common attribute of system environment class: The current computer name: static System. Environment. MachineName The current computer domain: static System. Environment. UserDomainName Current computer users: static System. Environment. UserName