Pihole DNS Service not running

[snhroc]

Expected Behaviour:

DNS service should be running

Actual Behaviour:

DNS Service not running. Appears to sporadically run, but at most times shows as not running.

Debug Token:

[https://tricorder.pi-hole.net/4yuJFuNE/]

[jfb]

There are a few issues noted in your debug log.

First, your DHCP server is distributing a number of DNS servers other than Pi-hole. Pi-hole is on IP 192.168.253.180.

*** [ DIAGNOSING ]: Name resolution (IPv4) using a random blocked domain and a known ad-serving domain
[✓] www.liquidityaggregator.com is 0.0.0.0 on lo (127.0.0.1)
[✓] www.liquidityaggregator.com is 0.0.0.0 on ens160 (192.168.253.180)

Your DNS server is distributing this:

*** [ DIAGNOSING ]: Discovering active DHCP servers (takes 10 seconds)
   Scanning all your interfaces for DHCP servers
   Timeout: 10 seconds
   
   * Received 320 bytes from ens160:192.168.253.1
     Offered IP address: 192.168.253.180
     Server IP address: 192.168.253.1
     Relay-agent IP address: N/A
     BOOTP server: (empty)
     BOOTP file: (empty)
     DHCP options:
      Message type: DHCPOFFER (2)
      server-identifier: 192.168.253.1
      lease-time: 86400 ( 1d )
      renewal-time: 43200 ( 12h )
      rebinding-time: 75600 ( 21h )
      netmask: 255.255.255.0
      domain-name: "***redacted***"
      broadcast: 192.168.253.255
      dns-server: 192.168.253.180
      dns-server: 192.168.253.1
      dns-server: 192.168.253.101
      dns-server: 8.8.8.8
      router: 192.168.253.1
      --- end of options ---
   
   DHCP packets received on interface ens160: 1

What is this DNS server in use by Pi-hole as the upstream DNS server?

PIHOLE_DNS_1=192.168.253.101

With logging disabled, your debug log doesn't show any of the recent query activity.