You must configure these credentials only when the Microsoft System Center Configuration Manager 2007 software update point must access the Internet via a proxy server or firewall that requires authenticated access.
Required rights and permissions
This account requires permission to use the proxy server or firewall for Internet access.
Account and password creation
Depending on the type of firewall or proxy server, this might be a set of credentials instead of an actual account. The firewall or proxy server administrator might create or designate the credentials to be used.
This account can exist anywhere it can access the proxy server or firewall.
The administrator changes the account or password, then configures Configuration Manager 2007 to use the new account or password.
Security best practices
Use an account with the least possible permissions.