No DNS resolution after apt-get upgrade (openhabian)

[deHakkelaar]

@ping

I really don’t know why this change solves the problem? Maybe there is a problem with access rights? It feels a bit like a “quick and dirty” solution which could cause new problems after the next update. So maybe someone knows how I can change access rights to its proper settings?

What you did by altering /etc/init.d/pihole-FTL is that pihole-FTL is now started as user root (can access all files) instead of before when pihole-FTL was started as the "$FTLUSER" user which default is the user pihole.
Thats why pihole-FTL is now able to read that /var/lib/misc/dnsmasq.leases file which does not belong to Pi-hole with a basic install.

pi@noads:~ $ sudo grep 'root\|pihole' /etc/passwd
root:x:0:0:root:/root:/bin/bash
pihole:x:999:996::/home/pihole:/usr/sbin/nologin

Can you post results for below one to check current permissions and ownership of that file ?

stat /var/lib/misc/dnsmasq.leases

Have a read here for another solution:

FTL is offline after update to 4.0

First confirm if you still have same status error: If so, you can try change ownership of that file like @technicalpyro previously posted (with sudo this time): sudo touch /var/lib/misc/dnsmasq.leases sudo chown pihole:pihole /var/lib/misc/dnsmasq.leases Restart: sudo systemctl restart pihole-FTL And check again: sudo systemctl status pihole-FTL -l Source of that dnsmasq.leases file is probably revealed if you run below one (dont skip the .*): grep -v '#\|^$' -R /etc/dnsmasq.*

Afterwards, if working, you can test blocking/resolution on a client with those host commands addressing both the ipv4 and ipv6 addresses:

xbian@avr ~ $ host -t txt -c ch version.bind 10.0.0.2
Using domain server:
Name: 10.0.0.2
Address: 10.0.0.2#53
Aliases:

version.bind descriptive text "dnsmasq-pi-hole-2.79"

---

xbian@avr ~ $ host pi.hole 10.0.0.2
Using domain server:
Name: 10.0.0.2
Address: 10.0.0.2#53
Aliases:

pi.hole has address 10.0.0.2

---

EDIT: oops ... forgot to add a naughty domain

xbian@avr ~ $ host doubleclick.com 10.0.0.2
Using domain server:
Name: 10.0.0.2
Address: 10.0.0.2#53
Aliases:

doubleclick.com has address 0.0.0.0
doubleclick.com has IPv6 address ::