diff --git a/src/primaite/simulator/system/services/dns_client.py b/src/primaite/simulator/system/services/dns_client.py
new file mode 100644
index 00000000..ebbe4058
--- /dev/null
+++ b/src/primaite/simulator/system/services/dns_client.py
@@ -0,0 +1,68 @@
+from abc import abstractmethod
+from ipaddress import IPv4Address
+from typing import Any, Dict, List
+
+from pydantic import BaseModel
+
+
+class DNSClient(BaseModel):
+    """Represents a DNS Client as a Service."""
+
+    target_url: str
+    "The URL/domain name the client requests the IP for."
+    dns_cache: Dict[str:IPv4Address] = {}
+    "A dict of known mappings between domain names and IPv4 addresses."
+
+    @abstractmethod
+    def describe_state(self) -> Dict:
+        """
+        Describes the current state of the software.
+
+        The specifics of the software's state, including its health, criticality,
+        and any other pertinent information, should be implemented in subclasses.
+
+        :return: A dictionary containing key-value pairs representing the current state of the software.
+        :rtype: Dict
+        """
+        return {"Operating State": self.operating_state}
+
+    def apply_action(self, action: List[str]) -> None:
+        """
+        Applies a list of actions to the Service.
+
+        :param action: A list of actions to apply.
+        """
+        pass
+
+    def reset_component_for_episode(self):
+        """
+        Resets the Service component for a new episode.
+
+        This method ensures the Service is ready for a new episode, including resetting any
+        stateful properties or statistics, and clearing any message queues.
+        """
+        pass
+
+    def send(self, payload: Any, session_id: str, **kwargs) -> bool:
+        """
+        Sends a payload to the SessionManager.
+
+        The specifics of how the payload is processed and whether a response payload
+        is generated should be implemented in subclasses.
+
+        :param payload: The payload to send.
+        :return: True if successful, False otherwise.
+        """
+        pass
+
+    def receive(self, payload: Any, session_id: str, **kwargs) -> bool:
+        """
+        Receives a payload from the SessionManager.
+
+        The specifics of how the payload is processed and whether a response payload
+        is generated should be implemented in subclasses.
+
+        :param payload: The payload to receive.
+        :return: True if successful, False otherwise.
+        """
+        pass
diff --git a/src/primaite/simulator/system/services/dns_server.py b/src/primaite/simulator/system/services/dns_server.py
new file mode 100644
index 00000000..e7b51f38
--- /dev/null
+++ b/src/primaite/simulator/system/services/dns_server.py
@@ -0,0 +1,64 @@
+from abc import abstractmethod
+from typing import Any, Dict, List
+
+from pydantic import BaseModel
+
+
+class DNSServer(BaseModel):
+    """Represents a DNS Server as a Service."""
+
+    dns_table: dict[str:str] = {"https://google.co.uk": "8.8.8.8"}
+
+    @abstractmethod
+    def describe_state(self) -> Dict:
+        """
+        Describes the current state of the software.
+
+        The specifics of the software's state, including its health, criticality,
+        and any other pertinent information, should be implemented in subclasses.
+
+        :return: A dictionary containing key-value pairs representing the current state of the software.
+        :rtype: Dict
+        """
+        return {"Operating State": self.operating_state}
+
+    def apply_action(self, action: List[str]) -> None:
+        """
+        Applies a list of actions to the Service.
+
+        :param action: A list of actions to apply.
+        """
+        pass
+
+    def reset_component_for_episode(self):
+        """
+        Resets the Service component for a new episode.
+
+        This method ensures the Service is ready for a new episode, including resetting any
+        stateful properties or statistics, and clearing any message queues.
+        """
+        pass
+
+    def send(self, payload: Any, session_id: str, **kwargs) -> bool:
+        """
+        Sends a payload to the SessionManager.
+
+        The specifics of how the payload is processed and whether a response payload
+        is generated should be implemented in subclasses.
+
+        :param payload: The payload to send.
+        :return: True if successful, False otherwise.
+        """
+        pass
+
+    def receive(self, payload: Any, session_id: str, **kwargs) -> bool:
+        """
+        Receives a payload from the SessionManager.
+
+        The specifics of how the payload is processed and whether a response payload
+        is generated should be implemented in subclasses.
+
+        :param payload: The payload to receive.
+        :return: True if successful, False otherwise.
+        """
+        pass
diff --git a/src/primaite/simulator/system/software.py b/src/primaite/simulator/system/software.py
index 854e7e2b..4caf6f03 100644
--- a/src/primaite/simulator/system/software.py
+++ b/src/primaite/simulator/system/software.py
@@ -109,6 +109,15 @@ class Software(SimComponent):
         """
         pass
 
+    @staticmethod
+    def get_install():
+        """
+        This method ensures the software has to have a way to install it.
+
+        This can be used by the software manager to install the software.
+        """
+        pass
+
 
 class IOSoftware(Software):
     """