Settings not saved via web interface

Valiceemo · May 17, 2017, 9:08pm

more problems with pi-hole

settings changed on the web interface are not being saved

eg, changing the upstream dns servers?
i can tick / untick boxes, click save and i get the confirmation message, but the boxes are still in their original state

im actually trying to set the dhcp server to on, but see the same behavior.

i have tried on multiple platforms, on multiple devices and still cannot get settings to be saved

i have alos ran sudo puhole -r and selected repair and no joy
i have cleared browser cache, and rebooted my pi.
all with no success

has anyone seen this?

Mcat12 · May 17, 2017, 9:27pm

Run pihole -d for a debug token.

Valiceemo · May 17, 2017, 9:39pm

token is sfmup0fqjx

thanks

Mcat12 · May 18, 2017, 3:51pm

Does this file exist and is it readable by the www-data user? /var/www/html/admin/scripts/pi-hole/php/header.php
There's lots of this in the web interface log:

2017-05-17 22:37:06: (mod_fastcgi.c.2702) FastCGI-stderr: PHP Warning:  require(scripts/pi-hole/php/header.php): failed to open stream: No such file or directory in /var/www/html/pihole/index.php on line 9
2017-05-17 22:37:06: (mod_fastcgi.c.2702) FastCGI-stderr: PHP Fatal error:  require(): Failed opening required 'scripts/pi-hole/php/header.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/html/pihole/index.php on line 9

Do you notice anything else amiss about the web interface? This error should cause many more things to break.

Valiceemo · May 18, 2017, 8:29pm

thanks for taking a look @Mcat12

that file does exist, but im unsure to check if its readable by user www-data ??

using putty whilst ssh'd to my pi i can use nano and read the file as user pi

the only other thing i have noticed in the web interface is when i load it up, i see an enable button on the sidebar, right above the tools button.
ive attached a screenshot

Valiceemo · May 19, 2017, 12:02am

9nw thing I have noticed is I am unable to access the admin page via pi.hole/admin
I see a pi.hole’s server DNS address could not be found error.
I have to use my local pi hole IP address

Mcat12 · May 19, 2017, 1:28am

That means that your device isn't properly using Pi-hole as its DNS server. Run:

ls -al /var/www/html/admin/scripts/pi-hole/php/header.php
pihole status
sudo service dnsmasq status

and share the output.

Valiceemo · May 19, 2017, 9:56am

Thanks again

The out put is as follows

pi@raspberrypi:~ $ ls -al /var/www/html/admin/scripts/pi-hole/php/header.php
-rw-r--r-- 1 root root 25K May  4 14:23 /var/www/html/admin/scripts/pi-hole/php/header.php
pi@raspberrypi:~ $ pihole status
[sudo] password for pi:
::: DNS service is running
::: Pi-hole blocking is Enabled
pi@raspberrypi:~ $ sudo service dnsmasq status
● dnsmasq.service - dnsmasq - A lightweight DHCP and caching DNS server
   Loaded: loaded (/lib/systemd/system/dnsmasq.service; enabled)
  Drop-In: /run/systemd/generator/dnsmasq.service.d
           └─50-dnsmasq-$named.conf, 50-insserv.conf-$named.conf
   Active: active (running) since Wed 2017-05-17 22:19:20 BST; 1 day 12h ago
 Main PID: 6941 (dnsmasq)
   CGroup: /system.slice/dnsmasq.service
           └─6941 /usr/sbin/dnsmasq -x /run/dnsmasq/dnsmasq.pid -u dnsmasq -r /run/dnsmasq/resolv.c...
May 17 22:19:19 raspberrypi dnsmasq[6934]: dnsmasq: syntax check OK.
May 17 22:19:20 raspberrypi systemd[1]: Started dnsmasq - A lightweight DHCP and caching DNS server

Mcat12 · May 19, 2017, 3:18pm

What is the output of sudo pihole status web?
Also, does /etc/sudoers.d/pihole exist?

Valiceemo · May 19, 2017, 4:09pm

Ive run sudo pihole status web...

pi@raspberrypi:~ $ sudo pihole status web
[sudo] password for pi:
1
pi@raspberrypi:~ $

And the file /etc/sudoers.d/pihole does exist.

It contains

GNU nano 2.2.6                 File: /etc/sudoers.d/pihole                                          
# Pi-hole: A black hole for Internet advertisements
# (c) 2017 Pi-hole, LLC (https://pi-hole.net)
# Network-wide ad blocking via your own hardware.
#
# Allows the WebUI to use Pi-hole commands
#
# This file is copyright under the latest version of the EUPL.
# Please see LICENSE file for your rights under this license.
  GNU nano 2.2.6                 File: /etc/sudoers.d/pihole                                          
# Pi-hole: A black hole for Internet advertisements
# (c) 2017 Pi-hole, LLC (https://pi-hole.net)
# Network-wide ad blocking via your own hardware.
#
# Allows the WebUI to use Pi-hole commands
#
# This file is copyright under the latest version of the EUPL.
# Please see LICENSE file for your rights under this license.
#
www-data ALL=NOPASSWD: /usr/local/bin/pihole




























^G Get Help      ^O WriteOut      ^R Read File     ^Y Prev Page     ^K Cut Text      ^C Cur Pos
^X Exit          ^J Justify       ^W Where Is      ^V Next Page     ^U UnCut Text    ^T To Spell

Mcat12 · May 19, 2017, 5:01pm

Does the web interface still say that the status is Unknown?

Valiceemo · May 19, 2017, 5:04pm

Yes it does.

If I click enable it switches to active.
But if I refresh the page, it reverts back to unknown.

Mcat12 · May 19, 2017, 5:07pm

Try restarting the Pi-hole. Make another debug token with pihole -d.

Valiceemo · May 19, 2017, 5:49pm

Restarted my Pi, still see the same behaviour.

Debug token qn2wgf8wel

Mcat12 · May 19, 2017, 7:34pm

What is the output of sudo service lighttpd status?

Valiceemo · May 19, 2017, 7:39pm

pi@raspberrypi:~ $ sudo service lighttpd status
[sudo] password for pi:
● lighttpd.service - Lighttpd Daemon
   Loaded: loaded (/lib/systemd/system/lighttpd.service; enabled)
   Active: active (running) since Fri 2017-05-19 18:42:32 BST; 1h 56min ago
  Process: 701 ExecStartPre=/usr/sbin/lighttpd -t -f /etc/lighttpd/lighttpd.conf (code=exited, status=0/SUCCESS)
 Main PID: 1086 (lighttpd)
   CGroup: /system.slice/lighttpd.service
           ├─1086 /usr/sbin/lighttpd -D -f /etc/lighttpd/lighttpd.conf                                           ├─1270 /usr/bin/php-cgi
           ├─1282 /usr/bin/php-cgi
           ├─1283 /usr/bin/php-cgi
           ├─1284 /usr/bin/php-cgi
           └─1285 /usr/bin/php-cgi

May 19 18:54:54 raspberrypi sudo[2323]: pam_unix(sudo:auth): auth could not identify password f...ata]May 19 18:54:54 raspberrypi lighttpd[1086]: sudo: no tty present and no askpass program specified
May 19 18:55:17 raspberrypi lighttpd[1086]: We trust you have received the usual lecture from th...temMay 19 18:55:17 raspberrypi lighttpd[1086]: Administrator. It usually boils down to these three ...gs:May 19 18:55:17 raspberrypi lighttpd[1086]: #1) Respect the privacy of others.
May 19 18:55:17 raspberrypi lighttpd[1086]: #2) Think before you type.
May 19 18:55:17 raspberrypi lighttpd[1086]: #3) With great power comes great responsibility.
May 19 18:55:17 raspberrypi sudo[2430]: pam_unix(sudo:auth): conversation failed
May 19 18:55:17 raspberrypi sudo[2430]: pam_unix(sudo:auth): auth could not identify password f...ata]May 19 18:55:18 raspberrypi lighttpd[1086]: sudo: no tty present and no askpass program specified
Hint: Some lines were ellipsized, use -l to show in full.

Mcat12 · May 19, 2017, 7:54pm

Run the command with the -l parameter so we can see the full lines. It looks like lighttpd is unable to use sudo commands, although the sudoers file is installed.

Valiceemo · May 19, 2017, 8:02pm

Thank for taking the time to look @Mcat12

 pi@raspberrypi:~ $ sudo service lighttpd status -l
● lighttpd.service - Lighttpd Daemon
   Loaded: loaded (/lib/systemd/system/lighttpd.service; enabled)
   Active: active (running) since Fri 2017-05-19 18:42:32 BST; 2h 17min ago
  Process: 701 ExecStartPre=/usr/sbin/lighttpd -t -f /etc/lighttpd/lighttpd.conf (code=exited, status=0/SUCCESS)
 Main PID: 1086 (lighttpd)
   CGroup: /system.slice/lighttpd.service
           ├─1086 /usr/sbin/lighttpd -D -f /etc/lighttpd/lighttpd.conf
           ├─1270 /usr/bin/php-cgi
           ├─1282 /usr/bin/php-cgi
           ├─1283 /usr/bin/php-cgi
           ├─1284 /usr/bin/php-cgi
           └─1285 /usr/bin/php-cgi

May 19 18:54:54 raspberrypi sudo[2323]: pam_unix(sudo:auth): auth could not identify password for [www-data]
May 19 18:54:54 raspberrypi lighttpd[1086]: sudo: no tty present and no askpass program specified
May 19 18:55:17 raspberrypi lighttpd[1086]: We trust you have received the usual lecture from the local System
May 19 18:55:17 raspberrypi lighttpd[1086]: Administrator. It usually boils down to these three things:
May 19 18:55:17 raspberrypi lighttpd[1086]: #1) Respect the privacy of others.
May 19 18:55:17 raspberrypi lighttpd[1086]: #2) Think before you type.
May 19 18:55:17 raspberrypi lighttpd[1086]: #3) With great power comes great responsibility.
May 19 18:55:17 raspberrypi sudo[2430]: pam_unix(sudo:auth): conversation failed
May 19 18:55:17 raspberrypi sudo[2430]: pam_unix(sudo:auth): auth could not identify password for [www-data]
May 19 18:55:18 raspberrypi lighttpd[1086]: sudo: no tty present and no askpass program specified

Mcat12 · May 19, 2017, 9:56pm

What is the output of ls -al /etc/sudoers.d/pihole? That file should be letting the www-data user execute pihole commands with sudo...

Valiceemo · May 19, 2017, 10:03pm

pi@raspberrypi:~ $ ls -al /etc/sudoers.d/pihole
-r--r----- 1 root root 367 May 17 22:18 /etc/sudoers.d/pihole