Can't use unix socket in torrc with nginx (Onion Service)

Question

Im using Ubuntu 22.04 and everytime I try to use a unix socket in torrc config file the onion service doesn't work

torrc config file:

Log notice file /var/log/tor/log
RunAsDaemon 1
SocksPort 0
DataDirectory /var/lib/tor
HiddenServiceDir /var/lib/tor/gunicorn/
#HiddenServicePort 80 127.0.0.1:80
HiddenServicePort 80 unix:/home/agua/sockets/nginx.sock

nginx site config file:

server { 
        #listen 80;
        listen unix:/home/agua/sockets/nginx.sock;      
        allow "unix:";
        server_name v3onionurlexample.onion
}

the nginx.sock has the following permissions:

namei -nom /home/agua/sockets/nginx.sock

f: /home/agua/sockets/nginx.sock
 drwxr-xr-x root root     /
 drwxr-xr-x root root     home
 drwxr-xr-x agua agua     agua
 drwxrwxrwx agua agua     sockets
 srwxrwxrwx agua www-data nginx.sock

If I use in torrc HiddenServicePort 80 127.0.0.1:80 and in nginx site config file listen 80; the service works perfectly.

But https://community.torproject.org/onion-services/setup/ reccomends using unix sockets

Any help is well received im new in this

edit:

I have changed the permission to nginx.sock file to the following because im running tor daemon with sudo systemctl start tor this still doesn't work

namei -nom /home/agua/sockets/nginx.sock
f: /home/agua/sockets/nginx.sock
 drwxr-xr-x root       root     /
 drwxr-xr-x root       root     home
 drwxr-xr-x agua       agua     agua
 drwxrwxrwx agua       agua     sockets
 srwxrwxrwx debian-tor www-data nginx.sock

sock file can be read by any user or group so permissions shouldnt be the problem here

tor service status:

tor.service - Anonymizing overlay network for TCP (multi-instance-master)

     Loaded: loaded (/lib/systemd/system/tor.service; enabled; vendor preset: enabled)
     Active: active (exited) since Fri 2022-06-24 02:13:41 CEST; 26s ago

    Process: 39734 ExecStart=/bin/true (code=exited, status=0/SUCCESS)
   Main PID: 39734 (code=exited, status=0/SUCCESS)

        CPU: 1ms



jun 24 02:13:41 agua-VirtualBox systemd[1]: Stopped Anonymizing overlay network for TCP (multi-instance-master).
jun 24 02:13:41 agua-VirtualBox systemd[1]: Stopping Anonymizing overlay network for TCP (multi-instance-master)...
jun 24 02:13:41 agua-VirtualBox systemd[1]: Starting Anonymizing overlay network for TCP (multi-instance-master)...
jun 24 02:13:41 agua-VirtualBox systemd[1]: Finished Anonymizing overlay network for TCP (multi-instance-master).

edit 2: systemctl status tor@default

[email protected] - Anonymizing overlay network for TCP

     Loaded: loaded (/lib/systemd/system/[email protected]; enabled-runtime; vendor preset: enabled)

     Active: active (running) since Fri 2022-06-24 18:03:26 CEST; 53s ago

    Process: 41403 ExecStartPre=/usr/bin/install -Z -m 02755 -o debian-tor -g debian-tor -d /run/tor (code=exited, status=0/SUCCESS)

    Process: 41404 ExecStartPre=/usr/bin/tor --defaults-torrc /usr/share/tor/tor-service-defaults-torrc -f /etc/tor/torrc --RunAsDaemon 0 --verify-config (code=exited, status=0/SUCCESS)

   Main PID: 41405 (tor)

      Tasks: 1 (limit: 1084)

     Memory: 49.6M

        CPU: 534ms

     CGroup: /system.slice/system-tor.slice/[email protected]

             └─41405 /usr/bin/tor --defaults-torrc /usr/share/tor/tor-service-defaults-torrc -f /etc/tor/torrc --RunAsDaemon 0



jun 24 18:03:26 agua-VirtualBox tor[41404]: Jun 24 18:03:26.548 [notice] Tor 0.4.6.10 running on Linux with Libevent 2.1.12-stable, OpenSSL 3.0.2, Zlib 1.2.11, Liblzma 5.2.5, Libzstd 1.4.8 and Glibc 2.3>

jun 24 18:03:26 agua-VirtualBox tor[41404]: Jun 24 18:03:26.548 [notice] Tor can't help you if you use it wrong! Learn how to be safe at https://support.torproject.org/faq/staying-anonymous/

jun 24 18:03:26 agua-VirtualBox tor[41404]: Jun 24 18:03:26.549 [notice] Read configuration file "/usr/share/tor/tor-service-defaults-torrc".

jun 24 18:03:26 agua-VirtualBox tor[41404]: Jun 24 18:03:26.550 [notice] Read configuration file "/etc/tor/torrc".

jun 24 18:03:26 agua-VirtualBox tor[41404]: Configuration was valid

jun 24 18:03:26 agua-VirtualBox tor[41405]: Jun 24 18:03:26.572 [notice] Tor 0.4.6.10 running on Linux with Libevent 2.1.12-stable, OpenSSL 3.0.2, Zlib 1.2.11, Liblzma 5.2.5, Libzstd 1.4.8 and Glibc 2.3>

jun 24 18:03:26 agua-VirtualBox tor[41405]: Jun 24 18:03:26.572 [notice] Tor can't help you if you use it wrong! Learn how to be safe at https://support.torproject.org/faq/staying-anonymous/

jun 24 18:03:26 agua-VirtualBox tor[41405]: Jun 24 18:03:26.572 [notice] Read configuration file "/usr/share/tor/tor-service-defaults-torrc".

jun 24 18:03:26 agua-VirtualBox tor[41405]: Jun 24 18:03:26.572 [notice] Read configuration file "/etc/tor/torrc".

tor log content

tail /var/log/tor/log

Jun 24 18:03:27.000 [notice] Bootstrapped 5% (conn): Connecting to a relay

Jun 24 18:03:27.000 [notice] Opening Control listener on /run/tor/control

Jun 24 18:03:27.000 [notice] Opened Control listener connection (ready) on /run/tor/control

Jun 24 18:03:27.000 [notice] Bootstrapped 10% (conn_done): Connected to a relay

Jun 24 18:03:28.000 [notice] Bootstrapped 14% (handshake): Handshaking with a relay

Jun 24 18:03:28.000 [notice] Bootstrapped 15% (handshake_done): Handshake with a relay done

Jun 24 18:03:28.000 [notice] Bootstrapped 75% (enough_dirinfo): Loaded enough directory info to build circuits

Jun 24 18:03:28.000 [notice] Bootstrapped 90% (ap_handshake_done): Handshake finished with a relay to build circuits

Jun 24 18:03:28.000 [notice] Bootstrapped 95% (circuit_create): Establishing a Tor circuit

Jun 24 18:03:28.000 [notice] Bootstrapped 100% (done): Done