small changes to get things hopefully fixed

common/security_wrapper.py

@@ -7,7 +7,7 @@
 
 class SecurityWrapper:
     def __init__(self, host: str, port: int):
-        self.host = '0.0.0.0' if host is None else '127.0.0.1' if host == 'localhost' else host
+        self.host = '0.0.0.0' if host is None else '0.0.0.0' if host == 'localhost' else host
         self.port = port
 
         self.socket = socket(AF_INET, SOCK_DGRAM)
@@ -63,4 +63,6 @@ def send(self, data: bytes, addr: tuple, delay: float = 0.0):
         else:
             self.socket.sendto(self.public_key, addr)
             self.connected_clients.append(addr)
-            threading.Thread(target=self.send, args=(data, addr, .1), daemon=False).start()
+            thread = threading.Thread(target=self.send, args=(data, addr, .1), daemon=True)
+            thread.start()
+            thread.join()

server/server.py

@@ -1,5 +1,6 @@
 import os
 import sys
+from logging import info
 
 os.chdir(os.path.dirname(os.path.abspath(__file__)))
 sys.path.append(os.path.join(os.getcwd(), '..'))
@@ -13,10 +14,11 @@ def __init__(self):
         self.clients = {}
 
         super().__init__('0.0.0.0', 9024)
-        print(f'Server: {self.host}:{self.port}')
+        info(f'Server running on: {self.host}:{self.port}')
 
     def _receive(self, data, addr):
         if data == b'echo':
+            info(f'Received an echo request from {addr}')
             self.send(b'Hello from server!', addr)