Recommended settings
Limit test
In "Network Connections", delete all the unwanted protocols and services, install only basic Internet Protocol (TCP/IP), and install the QoS Packet Scheduler in addition to the bandwidth flow service .
In Advanced TCP/IP Settings--"NetBIOS" setting disables NetBIOS (S) on TCP/IP.
In the 2003 system, TCP/IP filtering is not recommended in the port filtering function, such as the use of FTP server, if only open 21 ports, due to the specificity of the FTP protocol, FTP transmission, due to FTP-specific port mode and passive mode, In the data transmission, the need to dynamically open the high-end port, so in the case of TCP/IP filtering, often the connection can not be listed after the directory and data transfer problems. So the addition of Windows Connection Firewall on 2003 system can solve this problem very well, so it is not recommended to use the TCP/IP filtering function of the NIC.
In the advanced option, use Internet Connection Firewall, which is a firewall with Windows 2003, not in the 2000 system, although not functional, but can screen ports, so that has basically reached an IPSec function.
Open the port you use to, and if you modify the port on the Remote Desktop, do not forget to add it. If you have a mail server, also release the SMTP server port POP3 server port 110. Services can be added to the external service port, otherwise the service cannot be accessed.