Troubleshooting — Troubleshooting DNS Resolution Issues ...
docs.netgate.com › pfsense › enOct 06, 2021 · Before diagnosing DNS issues with pfSense® software specifically, start with Troubleshooting Network Connectivity to ensure the firewall has a proper networking configuration and working connectivity. Specifically, ensure the firewall can reach hosts on the Internet by IP address and that clients can reach the both the firewall and hosts on ...