Fairly new to all this, but I've installed Pihole in a Docker container running on Ubuntu server on a Rasberry PI 5. After redirecting DNS in my router to the fixed IP of Pihole, I'm unable to resolve domain names.
DNS not resolving
Your debug log shows that Pi-hole is working on the outward facing IP of the Docker container:
*** [ DIAGNOSING ]: Name resolution (IPv4) using a random blocked domain and a known ad-serving domain
[✓] skutecznyautokomis.pl is NOERROR on lo (127.0.0.1)
[✓] skutecznyautokomis.pl is NOERROR on eth0 (10.13.100.111)
[✓] doubleclick.com is 142.251.168.113 via a remote, public DNS server (8.8.8.8)
Mar 6 15:59:28 dnsmasq[49]: query[A] skutecznyautokomis.pl from 10.13.100.111
Mar 6 15:59:28 dnsmasq[49]: gravity blocked skutecznyautokomis.pl is 0.0.0.0
Please provide additonal details of what is not working.
From a client that you believe should be connected to the Pi-Hole for DNS, from the command prompt or terminal on that client (and not via ssh or Putty to the Pi), what is the output of
nslookup pi.hole
nslookup flurry.com
I also note that your DHCP server (the router) appears to be distributing the router IP for DNS, not the IP of the Pi-hole:
*** [ DIAGNOSING ]: Discovering active DHCP servers (takes 6 seconds)
Scanning all your interfaces for DHCP servers and IPv6 routers
Timeout: 6 seconds
Error while sending Router Solicitation on eth0: Network unreachable
* Received 300 bytes from 10.13.100.1 @ eth0
Offered IP address: 10.13.100.90
Server IP address: 10.13.100.1
Relay-agent IP address: N/A
BOOTP server: (empty)
BOOTP file: (empty)
DHCP options:
Message type: DHCPOFFER (2)
server-identifier: 10.13.100.1
lease-time: 86400 ( 1d )
renewal-time: 43200 ( 12h )
rebinding-time: 75600 ( 21h )
netmask: 255.255.255.0
broadcast: 10.13.100.255
dns-server: 10.13.100.1
router: 10.13.100.1
--- end of options ---
Received 1 DHCP (IPv4) and 0 RA (IPv6) answers on eth0
I've manually configured the DNS on my primary Internet connection on my router to use a public DNS so that I can still reach my router from outside if pihole would stop working. I've configured the individual VLANs to use the pihole DNS.
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