Author: bl-admin

Setting up Quad9 as Default DNS in OpenWrt

Sep 2, 2025

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by

bl-admin

in DNS, OpenWRT

✅ What Works Well (Best Practices) 1. Set Quad9 DNS in the WAN Interface (IPv4 & IPv6) This ensures your router forwards DNS requests only to Quad9, preventing ISP DNS leakage. 2. Configure DHCP Option 6 in LAN Interface 3. Leave LAN Custom DNS Servers Field Empty (also check if adding quad9 IPs works complementary)…
Haproxy.cfg configuration for acme challenge – openwrt

Oct 10, 2024

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by

bl-admin

in Automation, Networking, OpenWRT, Security

Updated configuration file for haproxy in openwrt. The acme-challenge was improved by having dedicated acls for each webserver containing a list of their own domains to redirect certbot traffic to another dedicated backend where those domains get their ssl certificates. Normal https traffic is redirected to individual backends. Explanation of Configuration: