Expected Behaviour:
Devices connected to the network can access the internet fully.
Actual Behaviour:
- Devices connected to the network persistently receive DNS timeout errors.
- Local resolution of pi.hole to raspberry pi's static IP works as expected.
- Pinging an external IP address (ex 8.8.8.8) works as expected.
Other Notes
- This started happening overnight-- the system was working for well over a year and abruptly stopped.
- I have attempted rebooting the rpi running pihole, running
pihole restartdns, and restarting the router. - pihole is configured with default settings.
- I am using my router's DHCP server.
- The router is configured to use the rpi as the DNS server:
- I'm not sure if this helps, but I saw this brought up on other threads with similar problems:
$ dig pi-hole.net @208.67.222.222
; <<>> DiG 9.16.37-Debian <<>> pi-hole.net @208.67.222.222
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8424
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1410
;; QUESTION SECTION:
;pi-hole.net. IN A
;; ANSWER SECTION:
pi-hole.net. 300 IN A 3.18.136.52
;; Query time: 32 msec
;; SERVER: 208.67.222.222#53(208.67.222.222)
;; WHEN: Fri Jul 19 02:30:23 PDT 2024
;; MSG SIZE rcvd: 56
$ dig pi-hole.net
; <<>> DiG 9.16.37-Debian <<>> pi-hole.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 19790
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
; EDE: 8 (Signature Not Yet Valid)
;; QUESTION SECTION:
;pi-hole.net. IN A
;; Query time: 32 msec
;; SERVER: 192.168.1.154#53(192.168.1.154)
;; WHEN: Fri Jul 19 02:31:32 PDT 2024
;; MSG SIZE rcvd: 46
Debug Token:
Unable to upload automatically:
[✓] ** FINISHED DEBUGGING! **
* The debug log can be uploaded to tricorder.pi-hole.net for sharing with developers only.
[i] Debug script running in automated mode
* Using curl for transmission.
* curl failed, contact Pi-hole support for assistance.
* Error message: curl: (6) Could not resolve host: tricorder.pi-hole.net
[✗] There was an error uploading your debug log.
* Please try again or contact the Pi-hole team for assistance.
* A local copy of the debug log can be found at: /var/log/pihole/pihole_debug.log
Copy of log is attached.
piholedebug.txt (33.1 KB)