Failed to connect to socket: Permission denied

Hello to everyone,

I‘d like to resume this topic because I have a similar error message as stated at the beginning of this topic:

Fehler #0:
OMV\Rpc\Exception: Failed to connect to socket: Permission denied in /usr/share/php/openmediavault/rpc/rpc.inc:140
Stack trace:
#0 /var/www/openmediavault/rpc/session.inc(56): OMV\Rpc\Rpc::call('UserMgmt', 'authUser', Array, Array, 2, true)
#1 [internal function]: OMVRpcServiceSession->login(Array, Array)
#2 /usr/share/php/openmediavault/rpc/serviceabstract.inc(123): call_user_func_array(Array, Array)
#3 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('login', Array, Array)
#4 /usr/share/php/openmediavault/rpc/proxy/json.inc(97): OMV\Rpc\Rpc::call('Session', 'login', Array, Array, 3)
#5 /var/www/openmediavault/rpc.php(45): OMV\Rpc\Proxy\Json->handle()
#6 {main}

To keep my story short, out of stupidity I updated the php version of my omv 4 system to 7.3 and as a well deserved result I couldn’t connect to the webinterface.

As far as I can comprehend I managed to purge the system form the php 7.3 version and reinstalled the original version.

By doing that I could reconnect to the webinterface and omv-engined -d -f showed no further php related errors. But all this leaves me with the permission denied error message stated at the beginning.

Unfortunately I don’t have enough experience with Linux to manage the next step(s?) to regain access via webinterface by myself.

So can anyone help me with this?

Thank you for answering so quickly and for your note.

Hopefully it wasn’t a hint to face the inevitable, too.

I removed the engined.sock following your steps but it didn’t work, same error message.

Further information: Engined.sock was recreated by the system as expected.

Tried it, the file phpfpm doesn’t exist in /OpenMediaVault/mkconf, however there is a php-fpm. So I added the dash and the commands worked, but no change in the result.

I have some more information found in openmediavault-webgui_error.log:

Looking at the permissions for the openmediavault config it says -rw-rw----, for php7.2-fpm.sock srw-rw----

Hello again,

meanwhile I had some time to collect more information. I found two files that use the error log stated in my last post. The files are located in /etc/nginx/sites-enabled und /sites-availability. So i presume that one of this files can’t be completed entirely and that generates the error?

Does anybody know the dependencies between webgui, nginx and fastcgi, including the necessary permissions?

The permissions that I stated in the last post seemed to be correct ...

Any help would be appreciated

Hello again,

meanwhile I had some time and set up a new system. Because in the end this took less time, even with reinstalling docker and Nextcloud, than to tinker the old system without guidance.

So to conclude this topic for visitors with the same problem:

1. Do Backups in advance (my bad)

2. Reinstall the system because obviously even here no one has a clue what the last steps are (saves you time)

2a. Otherwise you can use the opportunity to learn something about your system. And maybe you can solve this topic. (let me know, if you do)