1. Configure Secure Network Services:
This step involves configuring services such as SSH and FTP securely to reduce the risk of attack and unauthorized access.
2. Security Updates:
Keeping systems up-to-date with the latest security patches is essential for protecting against known vulnerabilities.
3. Firewall Configuration:
A properly configured firewall can help protect networks from malicious activities, including Denial of Service attacks and unauthorized access attempts.
4. User Access Control:
Establishing user account controls to ensure that only authorized users have access to critical resources is important for maintaining the security of any system or network infrastructure.
5. File Permissions:
Ensuring that file permissions are set appropriately to restrict access to sensitive files is a key step in securing Linux systems.
6. File Integrity Monitoring:
Using file integrity monitoring tools can help identify any unauthorized changes that may have occurred, allowing administrators to quickly respond and mitigate the risk of attack.
7. Auditing and Logging:
Keeping logs of system activities allows organizations to monitor user activities and detect suspicious behavior that could indicate an attempted attack.
8. System Hardening:
By hardening systems, administrators can reduce the attack surface of their networks and make it more difficult for malicious actors to gain access.