WebUI down and reboot won't fix

Hi, my Omnia works like a charm and I seldomly connect to the WebUI.
A few weeks ago, I tried to connect in order to be sure an update was done.
I couldn’t connect, neither from 192.168.1.1 nor turris.local
Everything else is working, I can even connect using SSH but I’m clueless to what is happening and how to fix it.

When I tried to manually update :

root@turris:~# pkgupdate
INFO:Target Turris OS: 6.0.3
WARN:Requested package reforis-snapshots-plugin-l10n-fr that is missing, ignoring as requested.
WARN:Requested package reforis-data-collection-plugin-l10n-fr that is missing, ignoring as requested.
WARN:Requested package reforis-diagnostics-plugin-l10n-fr that is missing, ignoring as requested.

Thanks for your help !

Do you use http or https? Https is causing some problems.

It was in http, creating a certificate for https was on my todo list but never done.

Show the output of:
ls /etc/lighttpd/conf.d

 -----------------------------------------------------
 TurrisOS 6.0.3, Turris Omnia
 -----------------------------------------------------
root@turris:~# ls /etc/lighttpd/conf.d
10-redirect.conf     30-alias.conf        30-openssl.conf      40-ssl-enable.conf   70-foris-ws.conf     80-luci.conf         90-turris-root.conf
20-auth.conf         30-cgi.conf          30-proxy.conf        45-srv.conf          70-theme.conf        80-reforis.conf
20-authn_pam.conf    30-fastcgi.conf      30-setenv.conf       50-turris-auth.conf  80-diagnostics.conf  80-snapshots.conf
root@turris:~# ls -lrt /etc/lighttpd/conf.d
-rw-r--r--    1 root     root          1044 Sep 26 16:53 90-turris-root.conf
-rw-r--r--    1 root     root           881 Sep 26 16:53 80-luci.conf
-rw-------    1 root     root            60 Sep 26 16:53 70-theme.conf
-rw-r--r--    1 root     root           220 Sep 26 16:53 70-foris-ws.conf
-rw-------    1 root     root           620 Sep 26 16:53 40-ssl-enable.conf
-rw-------    1 root     root            66 Oct  9 13:34 50-turris-auth.conf
-rw-r--r--    1 root     root           169 Oct 16 01:28 80-reforis.conf
-rw-------    1 root     root           124 Oct 20 16:26 45-srv.conf
-rw-r--r--    1 root     root            35 Oct 25 09:34 30-setenv.conf
-rw-r--r--    1 root     root           870 Oct 25 09:34 30-proxy.conf
-rw-r--r--    1 root     root            36 Oct 25 09:34 30-openssl.conf
-rw-r--r--    1 root     root          4320 Oct 25 09:34 30-fastcgi.conf
-rw-r--r--    1 root     root          1626 Oct 25 09:34 30-cgi.conf
-rw-r--r--    1 root     root            34 Oct 25 09:34 30-alias.conf
-rw-r--r--    1 root     root            38 Oct 25 09:34 20-authn_pam.conf
-rw-r--r--    1 root     root          1344 Oct 25 09:34 20-auth.conf
-rw-r--r--    1 root     root            37 Oct 25 09:34 10-redirect.conf
-rw-r--r--    1 root     root           447 Nov  9 16:52 80-snapshots.conf
-rw-r--r--    1 root     root           457 Nov  9 16:52 80-diagnostics.conf

Ok so it looks OK for the new lighttpd. No idea why it doesnt work.

Indeed, evrything seems fine.

root@turris:/tmp/log/lighttpd# ls -lrt
-rw-r--r--    1 root     root            77 Nov 23 11:23 error.log.1
-rw-r--r--    1 root     root            76 Nov 27 00:12 error.log
root@turris:/tmp/log/lighttpd# cat error.log
2022-11-27 00:12:00: (../src/server.c.1867) logfiles cycled UID = 0 PID = 1
root@turris:/tmp/log/lighttpd# cat error.log.1
2022-11-23 11:23:43: (../src/server.c.1588) server started (lighttpd/1.4.67)
root@turris:/tmp/log/lighttpd# ps -ef | grep light
root      4568     1  0 Nov23 ?        00:00:11 /usr/sbin/lighttpd -D -f /etc/lighttpd/lighttpd.conf
root     21360 21324  0 14:28 pts/0    00:00:00 grep light

Strange behaviour also, using dmesg make my ssh session crash…

Sorry to bump. I fear that my last message is misleading.
I still cannot connect to the Web UI and I don’t know how to investigate this.
Any ideas ?
If it’s not fixable, I’ll have to reinitialize the device. Is there a way to keep the configurations ? Do a backup using command line ?

You can copy /etc/config folder into your PC to save all configuration files.

I am using this tool for ssh or file copying: GitHub - subhra74/snowflake: Graphical SFTP client and terminal emulator with helpful utilities