diff --git a/actor/src/udsactor/linux/operations.py b/actor/src/udsactor/linux/operations.py
index 4f360d8f..c39d2b08 100644
--- a/actor/src/udsactor/linux/operations.py
+++ b/actor/src/udsactor/linux/operations.py
@@ -91,12 +91,12 @@ def _getInterfaces() -> typing.List[str]:
 
     s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
     names = array.array(str('B'), b'\0' * space)
-    outbytes = struct.unpack(str('iL'), fcntl.ioctl(
+    outbytes = struct.unpack('iL', fcntl.ioctl(
         s.fileno(),
         0x8912,  # SIOCGIFCONF
-        struct.pack(str('iL'), space, names.buffer_info()[0])
+        struct.pack('iL', space, names.buffer_info()[0])
     ))[0]
-    namestr = names.tostring()
+    namestr = names.tobytes()
     # return namestr, outbytes
     return [namestr[i:i + offset].split(b'\0', 1)[0].decode('utf-8') for i in range(0, outbytes, length)]
 
@@ -155,7 +155,7 @@ def renameComputer(newName: str) -> bool:
     Returns True if reboot needed
     '''
     rename(newName)
-    return True  # Always reboot right now. Not much slower but much more better
+    return True  # Always reboot right now. Not much slower but much more convenient
 
 
 def joinDomain(domain: str, ou: str, account: str, password: str, executeInOneStep: bool = False):
diff --git a/server/src/uds/REST/methods/actor_v3.py b/server/src/uds/REST/methods/actor_v3.py
index 026784cb..9d54c81e 100644
--- a/server/src/uds/REST/methods/actor_v3.py
+++ b/server/src/uds/REST/methods/actor_v3.py
@@ -41,7 +41,7 @@ from uds.models import (
     TicketStore,
 )
 
-#from uds.core import VERSION
+# from uds.core import VERSION
 from uds.core.managers import userServiceManager
 from uds.core import osmanagers
 from uds.core.util import log, certs
@@ -64,6 +64,7 @@ UNMANAGED = 'unmanaged'  # matches the definition of UDS Actors OFC
 class BlockAccess(Exception):
     pass
 
+
 # Helpers
 
 
@@ -73,7 +74,11 @@ def checkBlockedIp(ip: str) -> None:
     cache = Cache('actorv3')
     fails = cache.get(ip) or 0
     if fails > ALLOWED_FAILS:
-        logger.info('Access to actor from %s is blocked for %s seconds since last fail', ip, GlobalConfig.LOGIN_BLOCK.getInt())
+        logger.info(
+            'Access to actor from %s is blocked for %s seconds since last fail',
+            ip,
+            GlobalConfig.LOGIN_BLOCK.getInt(),
+        )
         raise BlockAccess()
 
 
@@ -88,7 +93,9 @@ class ActorV3Action(Handler):
     path = 'actor/v3'
 
     @staticmethod
-    def actorResult(result: typing.Any = None, error: typing.Optional[str] = None) -> typing.MutableMapping[str, typing.Any]:
+    def actorResult(
+        result: typing.Any = None, error: typing.Optional[str] = None
+    ) -> typing.MutableMapping[str, typing.Any]:
         result = result or ''
         res = {'result': result, 'stamp': getSqlDatetimeAsUnix()}
         if error:
@@ -130,6 +137,7 @@ class Test(ActorV3Action):
     """
     Tests UDS Broker actor connectivity & key
     """
+
     name = 'test'
 
     def post(self) -> typing.MutableMapping[str, typing.Any]:
@@ -138,7 +146,9 @@ class Test(ActorV3Action):
             if self._params.get('type') == UNMANAGED:
                 Service.objects.get(token=self._params['token'])
             else:
-                ActorToken.objects.get(token=self._params['token'])  # Not assigned, because only needs check
+                ActorToken.objects.get(
+                    token=self._params['token']
+                )  # Not assigned, because only needs check
         except Exception:
             return ActorV3Action.actorResult('invalid token')
 
@@ -149,6 +159,7 @@ class Register(ActorV3Action):
     """
     Registers an actor
     """
+
     authenticated = True
     needs_staff = True
 
@@ -182,16 +193,17 @@ class Register(ActorV3Action):
                 runonce_command=self._params['run_once_command'],
                 log_level=self._params['log_level'],
                 token=secrets.token_urlsafe(36),
-                stamp=getSqlDatetime()
+                stamp=getSqlDatetime(),
             )
         return ActorV3Action.actorResult(actorToken.token)
 
 
-class Initiialize(ActorV3Action):
+class Initialize(ActorV3Action):
     """
     Information about machine action.
     Also returns the id used for the rest of the actions. (Only this one will use actor key)
     """
+
     name = 'initialize'
 
     def action(self) -> typing.MutableMapping[str, typing.Any]:
@@ -235,11 +247,15 @@ class Initiialize(ActorV3Action):
                 service: Service = Service.objects.get(token=self._params['token'])
                 # Locate an userService that belongs to this service and which
                 # Build the possible ids and make initial filter to match service
-                idsList = [x['ip'] for x in self._params['id']] + [x['mac'] for x in self._params['id']][:10]
+                idsList = [x['ip'] for x in self._params['id']] + [
+                    x['mac'] for x in self._params['id']
+                ][:10]
                 dbFilter = UserService.objects.filter(deployed_service__service=service)
             else:
                 # If not service provided token, use actor tokens
-                ActorToken.objects.get(token=self._params['token'])  # Not assigned, because only needs check
+                ActorToken.objects.get(
+                    token=self._params['token']
+                )  # Not assigned, because only needs check
                 # Build the possible ids and make initial filter to match ANY userservice with provided MAC
                 idsList = [i['mac'] for i in self._params['id'][:5]]
                 dbFilter = UserService.objects.all()
@@ -247,19 +263,18 @@ class Initiialize(ActorV3Action):
             # Valid actor token, now validate access allowed. That is, look for a valid mac from the ones provided.
             try:
                 userService: UserService = next(
-                    iter(dbFilter.filter(
-                        unique_id__in=idsList,
-                        state__in=[State.USABLE, State.PREPARING]
-                    ))
+                    iter(
+                        dbFilter.filter(
+                            unique_id__in=idsList,
+                            state__in=[State.USABLE, State.PREPARING],
+                        )
+                    )
                 )
             except Exception as e:
                 logger.info('Unmanaged host request: %s, %s', self._params, e)
-                return ActorV3Action.actorResult({
-                    'own_token': None,
-                    'max_idle': None,
-                    'unique_id': None,
-                    'os': None
-                })
+                return ActorV3Action.actorResult(
+                    {'own_token': None, 'max_idle': None, 'unique_id': None, 'os': None}
+                )
 
             # Managed by UDS, get initialization data from osmanager and return it
             # Set last seen actor version
@@ -269,11 +284,13 @@ class Initiialize(ActorV3Action):
             if osManager:
                 osData = osManager.actorData(userService)
 
-            return ActorV3Action.actorResult({
-                'own_token': userService.uuid,
-                'unique_id': userService.unique_id,
-                'os': osData
-            })
+            return ActorV3Action.actorResult(
+                {
+                    'own_token': userService.uuid,
+                    'unique_id': userService.unique_id,
+                    'os': osData,
+                }
+            )
         except (ActorToken.DoesNotExist, Service.DoesNotExist):
             raise BlockAccess()
 
@@ -282,6 +299,7 @@ class BaseReadyChange(ActorV3Action):
     """
     Records the IP change of actor
     """
+
     name = 'notused'  # Not really important, this is not a "leaf" class and will not be directly available
 
     def action(self) -> typing.MutableMapping[str, typing.Any]:
@@ -309,7 +327,12 @@ class BaseReadyChange(ActorV3Action):
         userService.updateData(userServiceInstance)
 
         # Store communications url also
-        ActorV3Action.setCommsUrl(userService, self._params['ip'], int(self._params['port']), self._params['secret'])
+        ActorV3Action.setCommsUrl(
+            userService,
+            self._params['ip'],
+            int(self._params['port']),
+            self._params['secret'],
+        )
 
         if userService.os_state != State.USABLE:
             userService.setOsState(State.USABLE)
@@ -327,13 +350,20 @@ class BaseReadyChange(ActorV3Action):
         userService.setProperty('priv', privateKey)
         userService.setProperty('priv_passwd', password)
 
-        return ActorV3Action.actorResult({'private_key': privateKey, 'server_certificate': cert, 'password': password})
+        return ActorV3Action.actorResult(
+            {
+                'private_key': privateKey,
+                'server_certificate': cert,
+                'password': password,
+            }
+        )
 
 
 class IpChange(BaseReadyChange):
     """
     Processses IP Change.
     """
+
     name = 'ipchange'
 
 
@@ -341,6 +371,7 @@ class Ready(BaseReadyChange):
     """
     Notifies the user service is ready
     """
+
     name = 'ready'
 
     def action(self) -> typing.MutableMapping[str, typing.Any]:
@@ -371,6 +402,7 @@ class Version(ActorV3Action):
     Notifies the version.
     Used on possible "customized" actors.
     """
+
     name = 'version'
 
     def action(self) -> typing.MutableMapping[str, typing.Any]:
@@ -381,16 +413,21 @@ class Version(ActorV3Action):
 
         return ActorV3Action.actorResult()
 
+
 class LoginLogout(ActorV3Action):
     name = 'notused'  # Not really important, this is not a "leaf" class and will not be directly available
 
     def notifyService(self, login: bool):
         try:
             # If unmanaged, use Service locator
-            service : 'services.Service' = Service.objects.get(token=self._params['token']).getInstance()
+            service: 'services.Service' = Service.objects.get(
+                token=self._params['token']
+            ).getInstance()
             # Locate an userService that belongs to this service and which
             # Build the possible ids and make initial filter to match service
-            idsList = [x['ip'] for x in self._params['id']] + [x['mac'] for x in self._params['id']][:10]
+            idsList = [x['ip'] for x in self._params['id']] + [
+                x['mac'] for x in self._params['id']
+            ][:10]
 
             validId: typing.Optional[str] = service.getValidId(idsList)
 
@@ -399,7 +436,9 @@ class LoginLogout(ActorV3Action):
                 raise Exception()
 
             # Check secret if is stored
-            storedInfo : typing.Optional[typing.MutableMapping[str, typing.Any]] = service.recoverIdInfo(validId)
+            storedInfo: typing.Optional[
+                typing.MutableMapping[str, typing.Any]
+            ] = service.recoverIdInfo(validId)
             # If no secret valid
             if not storedInfo or self._params['secret'] != storedInfo['secret']:
                 raise Exception()
@@ -421,12 +460,19 @@ class Login(LoginLogout):
     """
     Notifies user logged id
     """
+
     name = 'login'
 
     @staticmethod
-    def process_login(userService: UserService, username: str) -> typing.Optional[osmanagers.OSManager]:
-        osManager: typing.Optional[osmanagers.OSManager] = userService.getOsManagerInstance()
-        if not userService.in_use:  # If already logged in, do not add a second login (windows does this i.e.)
+    def process_login(
+        userService: UserService, username: str
+    ) -> typing.Optional[osmanagers.OSManager]:
+        osManager: typing.Optional[
+            osmanagers.OSManager
+        ] = userService.getOsManagerInstance()
+        if (
+            not userService.in_use
+        ):  # If already logged in, do not add a second login (windows does this i.e.)
             osmanagers.OSManager.loggedIn(userService, username)
         return osManager
 
@@ -439,7 +485,9 @@ class Login(LoginLogout):
 
         try:
             userService: UserService = self.getUserService()
-            osManager = Login.process_login(userService, self._params.get('username') or '')
+            osManager = Login.process_login(
+                userService, self._params.get('username') or ''
+            )
 
             maxIdle = osManager.maxIdle() if osManager else None
 
@@ -460,28 +508,29 @@ class Login(LoginLogout):
                 raise
             self.notifyService(login=True)
 
-
-        return ActorV3Action.actorResult({
-            'ip': ip,
-            'hostname': hostname,
-            'dead_line': deadLine,
-            'max_idle': maxIdle
-        })
+        return ActorV3Action.actorResult(
+            {'ip': ip, 'hostname': hostname, 'dead_line': deadLine, 'max_idle': maxIdle}
+        )
 
 
 class Logout(LoginLogout):
     """
     Notifies user logged out
     """
+
     name = 'logout'
 
     @staticmethod
-    def process_logout(userService: UserService, username: str) -> None: 
+    def process_logout(userService: UserService, username: str) -> None:
         """
         This method is static so can be invoked from elsewhere
         """
-        osManager: typing.Optional[osmanagers.OSManager] = userService.getOsManagerInstance()
-        if userService.in_use:  # If already logged out, do not add a second logout (windows does this i.e.)
+        osManager: typing.Optional[
+            osmanagers.OSManager
+        ] = userService.getOsManagerInstance()
+        if (
+            userService.in_use
+        ):  # If already logged out, do not add a second logout (windows does this i.e.)
             osmanagers.OSManager.loggedOut(userService, username)
             if osManager:
                 if osManager.isRemovableOnLogout(userService):
@@ -490,7 +539,6 @@ class Logout(LoginLogout):
             else:
                 userService.remove()
 
-
     def action(self) -> typing.MutableMapping[str, typing.Any]:
         isManaged = self._params.get('type') != UNMANAGED
 
@@ -510,13 +558,19 @@ class Log(ActorV3Action):
     """
     Sends a log from the service
     """
+
     name = 'log'
 
     def action(self) -> typing.MutableMapping[str, typing.Any]:
         logger.debug('Args: %s,  Params: %s', self._args, self._params)
         userService = self.getUserService()
         # Adjust loglevel to own, we start on 10000 for OTHER, and received is 0 for OTHER
-        log.doLog(userService, int(self._params['level']) + 10000, self._params['message'], log.ACTOR)
+        log.doLog(
+            userService,
+            int(self._params['level']) + 10000,
+            self._params['message'],
+            log.ACTOR,
+        )
 
         return ActorV3Action.actorResult('ok')
 
@@ -525,6 +579,7 @@ class Ticket(ActorV3Action):
     """
     Gets an stored ticket
     """
+
     name = 'ticket'
 
     def action(self) -> typing.MutableMapping[str, typing.Any]:
@@ -532,12 +587,16 @@ class Ticket(ActorV3Action):
 
         try:
             # Simple check that token exists
-            ActorToken.objects.get(token=self._params['token'])  # Not assigned, because only needs check
+            ActorToken.objects.get(
+                token=self._params['token']
+            )  # Not assigned, because only needs check
         except ActorToken.DoesNotExist:
             raise BlockAccess()  # If too many blocks...
 
         try:
-            return ActorV3Action.actorResult(TicketStore.get(self._params['ticket'], invalidate=True))
+            return ActorV3Action.actorResult(
+                TicketStore.get(self._params['ticket'], invalidate=True)
+            )
         except TicketStore.DoesNotExist:
             return ActorV3Action.actorResult(error='Invalid ticket')
 
@@ -550,7 +609,7 @@ class Unmanaged(ActorV3Action):
         unmanaged method expect a json POST with this fields:
             * id: List[dict] -> List of dictionary containing ip and mac:
             * token: str -> Valid Actor "master_token" (if invalid, will return an error).
-            * secret: Secret for commsUrl for actor
+            * secret: Secret for commsUrl for actor  (Cu
             * port: port of the listener (normally 43910)
 
         This method will also regenerater the public-private key pair for client, that will be needed for the new ip
@@ -570,11 +629,17 @@ class Unmanaged(ActorV3Action):
 
         # Build the possible ids and ask service if it recognizes any of it
         # If not recognized, will generate anyway the certificate, but will not be saved
-        idsList = [x['ip'] for x in self._params['id']] + [x['mac'] for x in self._params['id']][:10]
+        idsList = [x['ip'] for x in self._params['id']] + [
+            x['mac'] for x in self._params['id']
+        ][:10]
         validId: typing.Optional[str] = service.getValidId(idsList)
         ip: str
         try:
-            ip = next(x['ip'] for x in self._params['id'] if x['ip'] == validId or x['mac'] == validId)
+            ip = next(
+                x['ip']
+                for x in self._params['id']
+                if x['ip'] == validId or x['mac'] == validId
+            )
         except StopIteration:
             ip = self._params['id'][0]['ip']  # Get first IP if no valid ip found
 
@@ -583,18 +648,21 @@ class Unmanaged(ActorV3Action):
         cert: typing.Dict[str, str] = {
             'private_key': privateKey,
             'server_certificate': certificate,
-            'password': password
+            'password': password,
         }
         if validId:
             # Notify service of it "just start" action
             service.notifyInitialization(validId)
 
             # Store certificate, secret & port with service if validId
-            service.storeIdInfo(validId, {
-                'cert': certificate,
-                'secret': self._params['secret'],
-                'port': int(self._params['port'])
-            })
+            service.storeIdInfo(
+                validId,
+                {
+                    'cert': certificate,
+                    'secret': self._params['secret'],
+                    'port': int(self._params['port']),
+                },
+            )
 
         return ActorV3Action.actorResult(cert)
 
@@ -608,7 +676,11 @@ class Notify(ActorV3Action):
 
     def get(self) -> typing.MutableMapping[str, typing.Any]:
         logger.debug('Args: %s,  Params: %s', self._args, self._params)
-        if 'action' not in self._params or 'token' not in self._params or self._params['action'] not in ('login', 'logout'):
+        if (
+            'action' not in self._params
+            or 'token' not in self._params
+            or self._params['action'] not in ('login', 'logout')
+        ):
             # Requested login or logout
             raise RequestError('Invalid parameters')
 
diff --git a/server/src/uds/core/services/service.py b/server/src/uds/core/services/service.py
index 48da1d7b..866575e9 100644
--- a/server/src/uds/core/services/service.py
+++ b/server/src/uds/core/services/service.py
@@ -303,6 +303,18 @@ class Service(Module):
         """
         return None
 
+    def lockId(self, id: str) -> bool:
+        """
+        Locks the id, so it cannot be used by a service pool.
+
+        Args:
+            id (str): Id to lock
+
+        Returns:
+            bool: True if the id has been locked, False if not
+        """
+        return False
+
     def processLogin(self, id: str, remote_login: bool) -> None:
         """
         In the case that a login is invoked directly on an actor controlled machine with