Pi-hole server lose awareness of it self

[deHakkelaar]

Full fix:

1. Set FQDN in "/etc/hostname" (as this is recommended and sometimes required for some software):

sudo nano /etc/hostname

2. In "/etc/hosts" alter the line with "127.0.1.1" into a FQDN too:

sudo nano /etc/hosts

3. Ad 'localise-queries' option to have dnsmasq respond depending on interface:

echo 'localise-queries' | sudo tee /etc/dnsmasq.d/localise-queries.conf

4. Reboot:

sudo reboot

5. On Pi-Hole, check new hostname with:

hostname; hostname -s; hostname -f

6. On Pi-Hole, check via ping if "/etc/hosts" is setup correctly by checking the returned IP address which should be "127.0.1.1":

ping <FQDN>

7. On Pi-Hole web GUI, check if displayed hostname under settings is correct and if not, run below one to update:

pihole -g

8. Test from client with:

nslookup <SHORT_HOSTNAME>

Or:

host <SHORT_NAME>

As example:

$ cat /etc/hostname
noads.dehakkelaar.nl

$ hostname; hostname -s; hostname -f
noads.dehakkelaar.nl
noads
noads.dehakkelaar.nl

$ 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   noads.dehakkelaar.nl

$ ping noads.dehakkelaar.nl
PING noads.dehakkelaar.nl (127.0.1.1) 56(84) bytes of data.

$ cat /etc/resolv.conf
# Generated by resolvconf
nameserver 127.0.0.1

$ cat /etc/dnsmasq.d/localise-queries.conf
localise-queries

$ host noads
noads.dehakkelaar.nl has address 10.0.0.8

[deHakkelaar]

Pew, ready now or did I left something out ?

[deHakkelaar]

Added below as this seems to confuse alot of people:

$ cat /etc/resolv.conf
# Generated by resolvconf
nameserver 127.0.0.1

It says for DNS resolution, use the localhost Pi-Hole dnsmasq daemon who is listening on all interfaces including the 127.0.0.1 loopback interface IP address.
Pi-Hole is not using this file, only local processes that invoke DNS, because Pi-Hole got its own upstream DNS servers configured for resolution.

[GR3mGH0n]

Referring to MrD's post (Teleporter: Add '/etc/pihole/local.list' - #3 by MrD)

pihole -g

should be enough to update /etc/pihole/local.list.

[deHakkelaar]

Not sure if running the "-g" option will update all hostname instances for Pi-Hole besides the "/etc/pihole/local.list" file.
Had a quick look at the code but got lost in functions.
For now I would stick with the "-r" option or maybe a dev or someone else knows ?
Ping @MrD

[deHakkelaar]

For the hosts issue:

Update 01-pihole.conf

My first ever pull on git

[deHakkelaar]

@GR3mGH0n

Referring to MrD's post (Teleporter: Add '/etc/pihole/local.list' - #3 by MrD)

pihole -g

should be enough to update /etc/pihole/local.list.

Looks like the "-g" option is all it needs but not sure:

$ sudo grep noads -R /etc/
/etc/pihole/local.list: 10.0.0.8 noads.dehakkelaar.nl
/etc/hostname: noads.dehakkelaar.nl
/etc/hosts: 127.0.1.1    noads.dehakkelaar.nl

[deHakkelaar]

@GR3mGH0n ,
The guys found this little gem:

Add localise-queries flag to dnsmasq's config

This to allow users to still add entries in the "/etc/hosts" file that will be read by dnsmasq to share with the clients.
Though the hosts file is not intended for that, allot of us (ab)use it like that anyway just for the ease.
Proper way is to configure dnsmask to load your own list of hosts and IP addresses to be loaded as DNS records.

I already implemented the "localise-queries" directive and without breaking loopback, everything looks dandy.
If you want to help out testing:

sudo rm /etc/dnsmasq.d/no-hosts-file.conf
echo 'localise-queries' | sudo tee /etc/dnsmasq.d/99-localise-queries.conf
sudo service dnsmasq restart

[GR3mGH0n]

I already read both requests this afternoon and be pleased about the canny solution. I reprocuced the changes on my system and I can confirm: Everything operates flawless so far.

[deHakkelaar]

@MrD ,
Discourse derailing a bit but I saw your response.
Thats sweet bc that means you wont have to go through the lengthy procedure of reconfigure.

[deHakkelaar]

FYI, I updated:

$ pihole -v
::: Pi-hole version is v3.0 (Latest version is v3.0)
::: Web-Admin version is v3.0 (Latest version is v3.0)

And seem to have lost my entry:

$ sudo grep 'localise-queries' -R /etc

$ host noads.dehakkelaar.nl
noads.dehakkelaar.nl has address 127.0.1.1
noads.dehakkelaar.nl has address 10.0.0.8

So you'll need to add it again until tested and implemented:

echo 'localise-queries' | sudo tee /etc/dnsmasq.d/localise-queries.conf
sudo service dnsmasq restart

pi@noads:~ $ host noads.dehakkelaar.nl
noads.dehakkelaar.nl has address 127.0.1.1

xbian@arcade ~ $ host noads.dehakkelaar.nl
noads.dehakkelaar.nl has address 10.0.0.8

[GR3mGH0n]

My file is still there. I named it:

99-localise-queries.conf

[deHakkelaar]

Yeah I think I read before that happening if you dont number them high.
Adjusted solution ... Thx!