diff --git a/classes.py b/classes.py
index 165e68f..69ed13b 100644
--- a/classes.py
+++ b/classes.py
@@ -44,8 +44,8 @@ class Irc():
         self.loghandlers = []
         self.name = netname
         self.conf = conf
+        self.sid = None
         self.serverdata = conf['servers'][netname]
-        self.sid = self.serverdata["sid"]
         self.botdata = conf['bot']
         self.bot_clients = {}
         self.protoname = proto.__name__.split('.')[-1]  # Remove leading pylinkirc.protocols.
@@ -99,7 +99,6 @@ class Irc():
         (Re)sets an IRC object to its default state. This should be called when
         an IRC object is first created, and on every reconnection to a network.
         """
-        self.sid = self.serverdata["sid"]
         self.botdata = self.conf['bot']
         self.pingfreq = self.serverdata.get('pingfreq') or 90
         self.pingtimeout = self.pingfreq * 3
@@ -272,13 +271,16 @@ class Irc():
                                      hashtype, fp)
 
                 if checks_ok:
-                    # All our checks passed, get the protocol module to connect
-                    # and run the listen loop.
+                    self.sid = self.serverdata.get("sid")
+                    # All our checks passed, get the protocol module to connect and run the listen
+                    # loop. This also updates any SID values should the protocol module do so.
                     self.proto.connect()
 
                     log.info('(%s) Enumerating our own SID %s', self.name, self.sid)
-                    self.servers[self.sid] = IrcServer(None, self.serverdata['hostname'],
-                            internal=True, desc=self.serverdata.get('serverdesc')
+                    host = self.serverdata.get('hostname', world.fallback_hostname)
+
+                    self.servers[self.sid] = IrcServer(None, host, internal=True,
+                            desc=self.serverdata.get('serverdesc')
                             or self.botdata['serverdesc'])
 
                     log.info('(%s) Starting ping schedulers....', self.name)
diff --git a/coremods/service_support.py b/coremods/service_support.py
index 783a1da..88fa5fa 100644
--- a/coremods/service_support.py
+++ b/coremods/service_support.py
@@ -27,7 +27,7 @@ def spawn_service(irc, source, command, args):
     ident = irc.serverdata.get("%s_ident" % name) or conf.conf.get(name, {}).get('ident') or sbot.ident or name
 
     # TODO: make this configurable?
-    host = irc.serverdata["hostname"]
+    host = irc.serverdata.get("hostname", world.fallback_hostname)
 
     # Spawning service clients with these umodes where supported. servprotect usage is a
     # configuration option.
diff --git a/protocols/clientbot.py b/protocols/clientbot.py
index e54b0fa..eb0be8d 100644
--- a/protocols/clientbot.py
+++ b/protocols/clientbot.py
@@ -11,7 +11,7 @@ class ClientbotWrapperProtocol(Protocol):
         super().__init__(irc)
 
         # Remove conf key checks for those not needed for Clientbot.
-        self.conf_keys -= {'recvpass', 'sendpass'}
+        self.conf_keys -= {'recvpass', 'sendpass', 'sid', 'sidrange', 'hostname'}
 
         # This is just a fallback. Actual casemapping is fetched by handle_005()
         self.casemapping = 'ascii'
diff --git a/world.py b/world.py
index 85b05aa..55e4daf 100644
--- a/world.py
+++ b/world.py
@@ -22,3 +22,6 @@ exttarget_handlers = {}
 started = threading.Event()
 
 source = "https://github.com/GLolol/PyLink"  # CHANGE THIS IF YOU'RE FORKING!!
+
+# Fallback hostname used in various places internally when hostname isn't configured.
+fallback_hostname = 'pylink.int'