How can you improve System Administration security?

1 Use strong passwords

One of the most basic but essential security measures that system administrators should follow is to use strong and unique passwords for all their accounts and devices. Weak or reused passwords can easily be guessed or cracked by attackers, who can then gain access to sensitive systems and data. System administrators should also change their passwords regularly and use a password manager to store and manage them securely. Additionally, they should enable multi-factor authentication (MFA) whenever possible, which adds another layer of verification to prevent unauthorized login attempts.

4 Follow the principle of least privilege

System administrators should also follow the principle of least privilege, which means that they should only grant the minimum level of access and permissions that are necessary for each user, role, or task. By following this principle, system administrators can reduce the attack surface and limit the damage that can be caused by malicious or careless users, who can either intentionally or accidentally misuse or compromise the systems and data. System administrators should also audit and review the access and permissions of their users, roles, and tasks regularly, and revoke or modify them as needed.

5 Educate and train users

System administrators should also educate and train their users on the best security practices and policies that they should follow. Users are often the weakest link in the security chain, as they can fall victim to phishing, social engineering, or other forms of attacks that can compromise their credentials or devices. System administrators should provide their users with security awareness training, such as how to recognize and avoid common threats, how to use strong passwords and MFA, how to report and respond to incidents, and how to comply with the organization's security standards and regulations.

6 Stay updated and informed

Finally, system administrators should stay updated and informed on the latest security trends, threats, and solutions that affect their systems and data. System administration is a dynamic and evolving field that requires constant learning and adaptation. System administrators should read security blogs, newsletters, podcasts, and forums, and join security communities and networks, to keep abreast of the latest security news, tips, and best practices. They should also seek feedback and advice from their peers and mentors, and participate in security training and certification programs, to improve their security skills and knowledge.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?