Pihole stop working till i disable and re-able my router DHCP

Sned · February 7, 2024, 4:38am

Yes wlan0 was down, i used eth0 only while configuring to be sure that wlan is not affecting, but with sudo nmtui command i seen that my pi is still scanning wifi networks even when wlan0 is down soo better to fully disable it this way it will also use less power.
Only my home devices need to be connected via wifi, not pi hole soo its okey oh wait yeah its a mistake to disable then right ?

Well my devices connect to my router wifi which is connected to my pi via eth0 soo all should work fine i guess

deHakkelaar · February 7, 2024, 4:40am

Down just means that its not connected to any network.
It doesnt mean down as in turned off.

deHakkelaar · February 7, 2024, 4:41am

Like said before:

deHakkelaar:

Just as long as the wlan0 interface doesnt try to acquire an IP via DHCP.
Or else you get messages in Pi-hole that a hostname failed to register bc the name is already registered from the /etc/hosts file.
$ man dnsmasq
[..]
       -h, --no-hosts
              Don't read the hostnames in /etc/hosts.

Sned · February 7, 2024, 4:45am

Yes, good to know, even if wlan0 try and enable it there is no problem
In my hosts file i have this, shouldn't my pihole4 replace localhost ip ? :

127.0.0.1       localhost
::1             localhost ip6-localhost ip6-loopback
ff02::1         ip6-allnodes
ff02::2         ip6-allrouters

127.0.1.1       pihole4

deHakkelaar · February 7, 2024, 4:47am

Dont change!
Looks good:

pi@ph5b:~ $ cat /etc/hosts
127.0.0.1       localhost
::1             localhost ip6-localhost ip6-loopback
ff02::1         ip6-allnodes
ff02::2         ip6-allrouters

127.0.1.1      ph5b.home.dehakkelaar.nl  ph5b

Sned · February 7, 2024, 4:47am

Alright perfect

deHakkelaar · February 7, 2024, 4:52am

pi@ph5b:~ $ nc -vz4 localhost 53
Connection to localhost (127.0.0.1) 53 port [tcp/domain] succeeded!

pi@ph5b:~ $ nc -vz4 ph5b 53
Connection to ph5b (127.0.1.1) 53 port [tcp/domain] succeeded!

Sned · February 7, 2024, 4:55am

Perfect, i get same results

Sned · February 7, 2024, 1:27pm

Soo it worked well, no crash this morning, thanks a lot!

Sned · February 7, 2024, 2:23pm

I get disconnections time to time for all devices, then few seconds later (around 5 to 10 sec) it reconnect again for all devices

Edit : look same even when im on 8.8.8.8 dns soo not pi hole problem, thanks, after rebooting my box, problem is solved