UPDATED PI-HOLE to V6 403 forbidden

Help
1

Expected Behaviour:

UPDATED PI-HOLE to V6 yesterday expecting to work normal. i have pihole with "UNBOUND" a DNS recursive server. it never had problems before.

Actual Behaviour:

i go to the admin page of pihole and i am met with "403 Forebidden" or "refused to connect" i am using the Brave browser on linux mint 22. pi-hole seems to be working. I ran "pi-hole status" and everything has green check and working, but i can NOT access the admin page

i also tried this from what i found online, but it did NOT change the 403 forbidden admin access

" To resolve the issue, you can stop and disable the Lighttpd service by running the following commands via SSH:

sudo systemctl stop lighttpd.service
sudo systemctl disable lighttpd.service

Then, restart the Pi-hole FTL service:

sudo systemctl restart pihole-FTL.service
```"

## Debug Token:
https://tricorder.pi-hole.net/yg2XMfNq/
2

Hello,

can anyone help with this issue? have any of you outdated OS and updated to see a fix?

I have checked and am using raspian 10 OS which is outdated. if i update via terminal to raspian 11 OS and then to raspian 12 OS would that give me access to the ADMIN page ? everything else seems to be working at the moment.

3

hello, i took a screenshot the ports being used if anyone could give help on how to access admin page with this information. i still get 403 forbidden.

ports being used
ports being used1080×2340 191 KB

4

There doesn't appear to be any webserver listening. What URL are you using when you see the 403 error?

Are you still on the outdated version of your operating system or have you updated to a supported release?

Please run another debug and post the version information you see with pihole -v.

1 Like
5

Hello,
Thank you for your response and Help :slightly_smiling_face: :folded_hands:

i have previously used and working 192.168.254.57

i have also tried from reading other threads:

with my network address substituted. NOTHING has worked.
i am still on pi OS buster (10). i don't usually update unless i need to. I have not had issues until this newest version update to V6 of pihole. it seems that the pihole instance is up and running, but without admin page being able to load. i placed a screenshot shot below.

pihole status
pihole status1280×1024 112 KB

NOT updating has worked for me before when i was on windows and things would stop working or glitch when forced to do windows updates. i moved to linux mint 22 recently. Things are still very NEW to me compared to windows 7/10/11, but i am learning and trying to understand more and more each day. it is slow but still progress.

i found videos on youtube on how to do a terminal window update using putty to SSH and i can jump from buster (10) to bookwork (12) if needed.

i was waiting to see if issue could be fixed without updating first. is that possible?

again, thank you for your time and help.

pihole results
pihole results1280×1024 113 KB

6

Check what ports are configured to be used by Pi-hole web server running this command (post the result):

sudo pihole-FTL --config webserver.port

Please also generate a new debug token.

1 Like
7

Hello, Thank you for your time and help :folded_hands: :slightly_smiling_face:

i have pasted screenshot of webserver ports.

The debug token seems to fail to upload, but i have a local file i can access and i assume i can upload .

webserver status
webserver status1280×1024 111 KB

tricorder attempt
tricorder attempt1280×1024 215 KB

8

Change nameserver in /etc/resolv.conf to some public nameserver like 9.9.9.9 and try again with the debug log and see if the upload succeeds.

1 Like
9

Hello, how do i change the name server EXACTLY? Is their a video or document i can follow? i found a video on youtube , but i was only able to find the nameserver. i can not change it from commands i saw in the video.

Save Permanent DNS Settings In /etc/resolv.conf Pihole DNS

nameserver error
nameserver error1280×1024 88.5 KB

Thank you for your help

10

sudo nano /etc/resolv.conf

Then make the changes to the namerserver line(s). Save and exit by using CTRL-X.

1 Like
11

Hello,
token is below. it worked. i had to TYPE it from the putty terminal. it does not copy the way the regular linux terminal does with right click. so far i figured out how to paste by pressing the scroll button. if you know how to copy please let me know. i found info online but it didn't work for me. i kept the putty window open in case it does not work and need to try again typing the token out.

https://tricorder.pi-hole.net/fHCL3yLn/

12

Your update was not successful. One Pi-hole component still uses v5

*** [ DIAGNOSING ]: FTL version
[✓] Version: v5.25.2
[i] Branch: master
[i] Commit: 8943e260

And you use an outdated OS

*** [ DIAGNOSING ]: Operating system
[✓] Distro:  Raspbian
[✗] Version: 10
[✓] dig return code: 0
[i] dig response: "Raspbian=11,12 Ubuntu=20,22,23,24 Debian=11,12 Fedora=40,41 CentOS=9,10"
[✗] Error: Raspbian is supported but version 10 is currently unsupported (https://docs.pi-hole.net/main/prerequisites/)

While you could bypass the OS check, it's highly recommended to update your OS first - preferably with a fresh installation!

1 Like
14

How do i retain the backup file of settings for pihole and unbound server i created?

I will do the install and then want to use backup settings

15

You can use the web interface to export a backup file using the Teleporter function. Save the file in a safe place. Then, after you update your system and reinstall Pi-hole, you can restore the backup.

For unbound you will need to manually copy the config files.

1 Like
17

Hello,

What web interface? Is that different than the admin page i log into pihole on browser? How do i acess the web interface? I can not log into pihole.

Only access i have is from terminal via putty or i get 403 forebidden.

18

Web Interface is the page accessed via browser.

1 Like
20

hello,

how can i copy the tar file WITHOUT web interface since i do not have access to the web interface. i would like to get the backup and use it after i reinstall the pihole application.

thank yo for your help :grinning_face:

21

To generate a teleporter file via the commandline after connecting to your pi-hole via ssh:

sudo pihole-FTL --teleporter

It will create the file in the current directory and display its name, which will be something similar to pi-hole_raspberrypi_teleporter_2025-04-02_05-27-27_AEST.zip but with appropriate time and date details.

Exit your ssh connection:
exit

To retrieve the file, you can use sftp to connect to your Pi-hole (in the same way you connect with ssh).

From commandline on your pc:
sftp pi.hole
to retrieve file (change filename as appropriate):
get pi-hole_raspberrypi_teleporter_2025-04-02_05-27-27_AEST.zip
then exit out of sftp
exit

The file will now be saved on your pc.

1 Like
22

Your instructions only work for FTL v6, but the debug log shows FTL is still v5.25.2.

1 Like
23

Hello,

With FTL v5.25.2 version i am using how do i move out the backup tar file i created?

Do i connect my laptop via hdmi to the raspberry pi 4?

Thank you for your help amd time

1 Like