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Greetings forum members, I recently installed the OPNsense firewall, and last week, a colleague made adjustments to the Unbound DNS settings, specifically altering the "Type of DNSBL" and adding a new list. Since then, an issue has arisen where Android users seamlessly receive WhatsApp messages, while iPhone users experience disruptions unless connected to an alternative network. Seeking insights and solutions to address this discrepancy in WhatsApp message delivery on the OPNsense firewall. Appreciate any assistance.

Hello, I'm facing a challenge in configuring the OPNsense firewall. I need assistance in blocking access to Facebook, TikTok, and YouTube across the entire organization. However, I'd like to allow specific individuals access to these sites by creating MAC address exceptions. Can anyone provide guidance on achieving this? Thanks in advance!

Last week, on Friday, a colleague implemented changes to the Unbound DNS settings in our OPNsense firewall, specifically altering the "Type of DNSBL" and adding a new list. Since then, a peculiar issue has surfaced where individuals using Android devices receive WhatsApp messages without any disruptions, while iPhone users encounter difficulties unless connected to a different network. Seeking assistance in resolving this discrepancy and understanding the impact of recent DNS modifications on iPhone connectivity to WhatsApp services.