新聞/文章  March 17, 2025

6 Best Practices for Deploying OPNsense

🛡️ 1. Lock Down Admin Access

• Change the default password and username.
• Use two-factor authentication (like a code sent to your phone).
• Block traffic from risky countries using a tool called pfBlockerNG.
• Turn off remote access methods like SSH unless you really need them—use a VPN instead.

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💻 2. Limit Who Can Access the Firewall

• Only allow trusted devices to make changes.
• Restrict access by IP address and device ID (MAC address).
• Set up alerts so you know if someone changes something unexpectedly.

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🔄 3. Keep Everything Updated

• Regularly check for updates to fix bugs and security holes.
• Updates don’t happen automatically—you have to log in and do it manually.
• You can test updates before applying them to avoid breaking things.

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💾 4. Back Up Your Settings

• Save copies of your setup so you don’t have to start from scratch if something goes wrong.
• You can back up everything or just the parts you care about.
• Encrypt your backups for extra safety.

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🌐 5. Use a Separate Network for Admin Stuff

• Create a special network just for managing your firewall and other gear.
• This helps you fix things even if the rest of your network is down.
• If your device has a console port, use it for emergency access.

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🔍 6. Keep Rules Simple

• Don’t overload your firewall with too many rules—it makes troubleshooting harder.
• Stick to the basics and only allow what’s absolutely necessary.
• Group similar rules together to stay organized.

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In short: keep it secure, keep it simple, and always have a backup plan. If you want, I can help you set up a checklist or walk you through any of these steps.

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