PiHole-WebGUI and VPN doesn't work

Help
1

Hi,
Until now I got a RPi3 with Raspbian, Pi-Hole and openvpn. It worked, but I would like to use the RPi3 for something else and I replaced it with a NanoPi Neo.
I installed Armbian as well Debian as Ubuntu. Both has the same problems:

  • The Nanopi is kinda slow (reduces clock down to 240 mhz with a 2A powersupply, which I used with the RPI3 before and a core temperature at 40°C)
  • PiHole is working, blocking ads, and writing stuff to the log, but the querries-list on the Web-GUI is empty
  • PiHole deactivates itself randomly
  • VPN worked for one time, then it kicked me out...

any ideas??

2

I'm also using a NanoPi NEO (armbian Ubuntu) and have not seen any issues. I'm using it since two weeks as my Pi-hole at home.

Does that apply to the whole webUI?
(like in Query Log page is empty, statistics completely unpopulated, etc)

How do you notice? Have you checked the status of the dnsmasq service?

3

Yes, it apply to the whole webgui. Graphs, log and stats are empty.

how I noticed it: the green dot in the upper left corner is red and saying "not running" and I'm flooded with ads.

4

Please provide a debug token (use pihole -d and agree to uploading) once you can access your NanoPi again.

5

ao52qbjor0 is the token

the nanopi crashed and shut off after I connected by VPN to it. Now I startet it again and actually it seems to run.
But:

  • Still no Querries in the webGUI
  • PiHole was deactivated after booting
  • If I change VPN-DNS from 8.8.8.8 to 10.8.0.1 (which is the correct address) I can't access any website anymore. Seems like DNS doesn't run well

service dnsmasq status gives me:

dnsmasq[1598]: /etc/resolvconf/update.d/libc: Warning: /etc/resolv.conf is not a symbolic link to /run/resolvconf/resolv.conf

this I solved with: sudo rm /etc/resolv.conf
sudo ln -s ../run/resolvconf/resolv.conf /etc/resolv.conf
sudo resolvconf -u
the error is gone, but doesn't work either

6

What is now with

sudo service dnsmasq status

Does it say dnsmasq is running?

What is the output of

ip link show

Just as a side note: Might be related to

7

It sounds like the DNS server was crashing on startup and therefore there weren't any queries to generate stats from.

8

i think I found the problem: The SD-Card seems to be broken or something like that. With a new one it runs fine and fast.

9

Update: it runs fine until I try to connect over VPN. Then everything goes wrong:
Pihole deactivates itself, VPN kicks me out faster and faster until the nanopi crashes.

additional I figured out that VPN doesn't work with 10.8.0.1 as dns-settings. I had to use 192.168.0.100 (IP of the NanoPi) to access websites.
But even changing back to 8.8.8.8 it didn't help much, minutes later the Nanopi crashes.
and eth0 is only running 100 halfduplex. I can't set it permanently to fullduplex.