How to block multiple websites?

To block multiple websites using OPNsense, you can use firewall rules or the proxy server (if installed). Here’s a straightforward method using both approaches:

Method 1: Using Firewall Rules

1. Access the OPNsense Web Interface:

   • Open your web browser and navigate to the OPNsense interface (e.g., https://192.168.1.1).
   • Log in with your administrative credentials.

2. Go to Firewall Rules:

   • Click on Firewall in the main menu.
   • Select Rules.

3. Select the Interface:

   • Choose the interface where you want to apply the rules (e.g., LAN).

4. Add a New Rule:

   • Click on the Add button to create a new rule.

5. Configure the Rule:

   • Action: Select Block.
   • Interface: Choose the appropriate interface (e.g., LAN).
   • Source: Leave as any to block for all users or specify an IP address.
   • Destination:
     • To block multiple websites, you can use an alias (see Method 2 below) or enter the domains directly. For example, enter example1.com and example2.com (you may need to create separate rules for each domain).
   • Description: Add a description for the rule (e.g., "Block multiple websites").

6. Save and Apply Changes:

   • Click Save to save the rule.
   • Click Apply Changes to apply the new rule.

Method 2: Using Aliases

1. Create an Alias for Multiple Websites:

   • Go to Firewall > Aliases.
   • Click on Add to create a new alias.
   • Name: Give your alias a name (e.g., BlockedWebsites).
   • Type: Select Host(s).
   • Description: Add a description (e.g., "Blocked websites").
   • Host(s): Enter the domains you want to block, one per line (e.g., example1.com, example2.com, example3.com).
   • Click Save.

2. Create a Firewall Rule Using the Alias:

   • Go back to Firewall > Rules and select the appropriate interface (e.g., LAN).
   • Click on Add to create a new rule.
   • Action: Select Block.
   • Interface: Choose the appropriate interface (e.g., LAN).
   • Source: Leave as any.
   • Destination: Select the alias you created (e.g., BlockedWebsites).
   • Description: Add a description for the rule (e.g., "Block multiple websites using alias").
   • Click Save and then Apply Changes.

Step 3: Test the Block

1. Access the Blocked Websites:
   • Try to access the websites you have blocked from a device connected to the network.
   • You should receive an error message or be redirected to a block page.

Conclusion

Using aliases is a convenient way to manage multiple website blocks in OPNsense. If you have any questions or need further assistance with specific steps, feel free to ask!