groucho@devuan:~$ keyring get system username
groucho@devuan:~$ 

debian-archive-keyring
devuan-keyring
python-keyring
python-keyrings.alt
python3-keyring
python3-keyrings.alt

user@devuan:~$ backintime backup
Gkr-Message: 08:42:53.971: secret service operation failed: The name org.freedesktop.secrets was not provided by any .service files

Back In Time
Version: 1.1.24

Back In Time comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type `backintime --license' for details.

INFO: Lock
WARNING: Inhibit Suspend failed.
WARNING: import keyring failed
INFO: Take a new snapshot. Profile: 1 Main profile
INFO: [qt4systrayicon] begin loop
INFO: Call rsync to take the snapshot
INFO: Save config file
INFO: Create info file
INFO: Remove backups older than: 20220117-000000
INFO: Keep min free disk space: 40960 MiB
INFO: Keep min 5% free inodes
INFO: Unlock
user@devuan:~$ INFO: [qt4systrayicon] end loop

user@devuan:~$ keyring get system username
Gkr-Message: 09:17:24.950: secret service operation failed: The name org.freedesktop.secrets was not provided by any .service files
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 175, in activate_name_owner
    return self.get_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 361, in get_name_owner
    's', (bus_name,), **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NameHasNoOwner: Could not get owner of name 'org.freedesktop.secrets': no such name

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/secretstorage/util.py", line 55, in bus_get_object
    return bus.get_object(name, object_path, introspect=False)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 241, in get_object
    follow_name_owner_changes=follow_name_owner_changes)
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 248, in __init__
    self._named_service = conn.activate_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 180, in activate_name_owner
    self.start_service_by_name(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 278, in start_service_by_name
    'su', (bus_name, flags)))
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.secrets was not provided by any .service files

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/keyring/backends/SecretService.py", line 35, in priority
    list(secretstorage.get_all_collections(bus))
  File "/usr/lib/python3/dist-packages/secretstorage/collection.py", line 144, in get_all_collections
    service_obj = bus_get_object(bus, SS_PATH)
  File "/usr/lib/python3/dist-packages/secretstorage/util.py", line 59, in bus_get_object
    raise SecretServiceNotAvailableException(e.get_dbus_message())
secretstorage.exceptions.SecretServiceNotAvailableException: The name org.freedesktop.secrets was not provided by any .service files

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/bin/keyring", line 11, in <module>
    load_entry_point('keyring==17.1.1', 'console_scripts', 'keyring')()
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 489, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2793, in load_entry_point
    return ep.load()
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2411, in load
    return self.resolve()
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2417, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/usr/lib/python3/dist-packages/keyring/__init__.py", line 3, in <module>
    from .core import (
  File "/usr/lib/python3/dist-packages/keyring/core.py", line 189, in <module>
    init_backend()
  File "/usr/lib/python3/dist-packages/keyring/core.py", line 97, in init_backend
    or load_config()
  File "/usr/lib/python3/dist-packages/keyring/core.py", line 176, in load_config
    return load_keyring(keyring_name)
  File "/usr/lib/python3/dist-packages/keyring/core.py", line 137, in load_keyring
    class_.priority
  File "/usr/lib/python3/dist-packages/keyring/util/properties.py", line 26, in __get__
    return self.fget.__get__(None, owner)()
  File "/usr/lib/python3/dist-packages/keyring/backends/SecretService.py", line 38, in priority
    "Unable to initialize SecretService: %s" % e)
RuntimeError: Unable to initialize SecretService: The name org.freedesktop.secrets was not provided by any .service files
user@devuan:~$ 

[root@devuan ~]# keyring get system username
[root@devuan ~]# 

[root@devuan ~]# ss -tnlp | grep 4711
[root@devuan ~]# 

[root@devuan ~]# telnet 192.168.1.3 4711
Trying 192.168.1.3...
telnet: Unable to connect to remote host: Connection refused
[root@devuan ~]# 

root@chimaera:/etc/pihole# ss -tnlp | grep 4711
root@chimaera:/etc/pihole# 

root@chimaera:/etc/pihole# telnet 127.0.0.1 4711
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection refused     <----- this is it. But why?
root@chimaera:/etc/pihole# 

root@chimaera:~# service pihole-FTL restart
Not running

FTL started!
root@chimaera:~#

root@chimaera:~#  service pihole-FTL status
[    ] pihole-FTL is not running
root@chimaera:~# 

...
 28 }
 29 
 30 function connectFTL($address, $port) {
 31     if ($address == DEFAULT_FTL_IP) {
 32         $config = piholeFTLConfig();
 33         // Read port
 34         $portfileName = isset($config['PORTFILE']) ? $config['PORTFILE'] : DEFAULT_FTL_PORTFILE;
 35         if ($portfileName != '') {
 36             $portfileContents = file_get_contents($portfileName);
 37             if (is_numeric($portfileContents)) {
 38                 $port = intval($portfileContents);
 39             }
 40         }
 41     }
 42 
 43     // Open Internet socket connection                                       <-------             
 44     $socket = @fsockopen($address, $port, $errno, $errstr, 1.0);  <------
 45 
 46     return $socket;
 47 }
...