Improve the security of independent servers is an important step to ensure that your data and applications are free of malicious attacks and unauthorized access. Here are some common measures to improve the security of independent servers:

　　Update and maintain the operating system: Install the safety patch and update of the operating system in time to repair the known vulnerabilities and ensure that the operating system maintains the latest state.

　　Strengthen access control: Use strong passwords and change the password regularly. Disable unnecessary default accounts and services, restrict users and IP addresses access to the server, and enable dual -factor authentication.

　　Firewall settings: Configure the firewall of the server to limit the flow of entering and leaving the server. Only open the necessary ports and services, and limit access to specific IP addresses as needed.

　　Safety backup strategy: regular backup server data and stored backup on offline and secure positions. Ensure the integrity and recovery of backup, and test the recovery process.

　　Safety software and services: Install and configure anti -virus software, intrusion detection and defense system (IDS/IPS), web application firewall (WAF) and other security software and services to monitor and prevent malicious activities.

　　Encrypted communication: Protect sensitive data transmitted through the network by using the SSL/TLS certificate. Make sure the HTTPS protocol is used to encrypt the communication of websites and applications.

　　Logs and monitoring: Enable detailed logging functions to monitor server activities and detect potential invasion behaviors. Review the logs regularly and use safety monitoring tools to detect abnormal activities.

　　Security update and application: timely update and repair all software and applications running on the server. Ensure safely, the latest versions, and shut down services and functions that are no longer needed.

　　Regular security audit: regular safety audit and vulnerability scanning to identify potential security issues and weaknesses. Fix the vulnerabilities discovered and take necessary safety enhancement measures.