How to access your OPNsense instance?

Accessing your OPNsense instance involves several steps to ensure secure and proper connectivity. Here is a detailed guide:

After deploying the OPNsense instance, begin by configuring its basic settings. If you’re working with a physical device, connect directly to the console using a monitor and keyboard.
For PCH-hosted instances, which are cloud-based, access the console through your instance-assigned IP (e.g., a web console or SSH). Configure the network interfaces and assign the WAN and LAN IP addresses.

• The default LAN IP address is usually 192.168.1.1, but in our case, it would be a public IP.
• If required, update these settings to fit your network environment.

Once the basic setup is complete, you can manage the instance through the OPNsense web interface:

• Open a web browser on a device connected to the LAN network.
• Enter the LAN IP address of the OPNsense instance in the browser’s address bar. For example:
  • https://PUBLIC-IP-INST:4443
    Use HTTPS for secure communication.

Log in with the default credentials: Shared with you.

• Username: root
• Password: **************

If you need to manage OPNsense remotely, additional configuration is required:

• VPN Configuration: Set up a VPN on the OPNsense instance to ensure secure remote access to the internal or behind the OPNsense network…
• Firewall Rules: Modify the firewall to allow secure access from specific IP addresses or over VPN.
• Public IP Access: If using a public IP address, ensure strong security settings are applied, such as enabling HTTPS, restricting access to specific ports, and implementing multi-factor authentication (MFA).

Once access is configured, use the web interface for ongoing management. From here, you can:

• Monitor traffic and logs.
• Configure firewall rules, VPN settings, and network policies.
• Update the system and install plugins.

Best Practices for Secure Access

Change Default Credentials: Always replace default usernames and passwords with strong, unique credentials.

Enable Two-Factor Authentication (2FA): Add an extra layer of security for accessing the OPNsense web interface.

Restrict IP Access: Use firewall rules to limit access to trusted IP addresses.

Keep the System Updated: Regularly update OPNsense to patch security vulnerabilities.