Build the Network Topology Diagram of the Server
Recommendations：
- Hardware Firewall: It is recommended to use hardware firewalls of well-known brands, such as Sangfor and Huawei. Its main purposes are to prevent online virus intrusions and regulate the daily internet access behaviors of internal computers.
- Core Switch: It is recommended to configure a layer 3 network switch.
- Application Server & Database Server: For the database server, disk array must be configured. It can improve the read-write speed of data storage and enhance data security at the same time (when a hard disk is damaged, the faulty hard disk can be replaced quickly, avoiding server malfunction caused by hard disk damage).
- UPS (Uninterruptible Power Supply): It is used to supply power to the server in a timely manner when the mains power is cut off, so as to prevent hardware abnormalities of the server due to power outage. When selecting a UPS, choose a model with a network communication cable, so as to realize the normal shutdown of the server during unattended operation.
- NAS Data Backup Device: It is used to back up ERP data in a timely manner. Since the NAS is equipped with the Linux operating system, it has better virus resistance.