🔐 How to Secure Your Plesk Server (2025 Guide)

By Farooq Junejo • Tech Expert & Founder of Hostiget

Plesk is a popular control panel for web hosting, but its default configuration may leave your server open to threats. In this 2025 guide, I’ll show you how to harden your Plesk server against common attacks, spamming, and vulnerabilities.

1. Enable Fail2Ban

Fail2Ban protects against brute-force attacks. In Plesk:

2. Use SSH Key Authentication

Disable password login for SSH and use key-based authentication:

3. Keep Plesk & OS Updated

Run the Plesk updater regularly or enable auto-updates:

4. Secure Mail Server

Email is a common attack vector:

5. Install ModSecurity

Activate the ModSecurity WAF with OWASP rules:

6. Regular Backups

Use Plesk’s built-in backup manager and schedule regular full and incremental backups.

7. Bonus Tips

Securing your server is not a one-time task — make it a habit. Keep learning, stay updated, and always monitor your logs and notifications.