STRLCPY/100-redteam-projects

Merge pull request #6 from alisimran/master
```
[0] TCP_server - <Python> | alisimran
```
Héber Júlio committed with GitHub 3 years ago

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Projects/0_TCP_server/README.md

1	+	# TCP server just to receive messages
2	+	>This simple TCP server receives messages and echoes them back to the client. The client program sets up its socket differently from the way a server does. Instead of binding to a port and listening, it uses connect() to attach the socket directly to the remote address.
3	+
4	+	NOTE: Make sure that the terminals running the scripts are separate
5	+
6	+
7	+	![alt text](https://github.com/alisimran/100-redteam-projects/blob/master/Projects/0_TCP_server/tcpserver.png)
8	+
9	+	## :information_source: technologies used
10	+
11	+	* Python
12	+
13	+	## :information_source: How to use?
14	+
15	+	```bash
16	+	# Clone the repository
17	+	$ git clone https://github.com/kurogai/100-redteam-projects
18	+
19	+	# Enter the repository
20	+	$ cd 100-redteam-projects/0_TCP_server
21	+
22	+	# Open a terminal and run
23	+	python ./server.py
24	+
25	+	# Open another terminal and run
26	+	python ./client.py
27	+	```
28	+
29	+	## :books: References
30	+	https://pymotw.com/2/socket/tcp.html
31	+
32	+	## Developer
33	+	https://github.com/alisimran
34	+

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Projects/0_TCP_server/client.py

1	+	import socket
2	+
3	+	# Declaring and initializing local ip address and port to be used
4	+	localIP, localPort = "127.0.0.1", 65432
5	+
6	+	#creating a TCP/IP socket
7	+
8	+	TCPclientSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
9	+
10	+	TCPclientSocket.connect((localIP, localPort))
11	+
12	+
13	+
14	+	clientMsg = input("Type your message for the server here: ")
15	+	data = bytes(clientMsg, "utf-8")
16	+
17	+	# send message to the server using TCP socket
18	+	print("Sending message to {0} port {1}".format(localIP, localPort))
19	+	TCPclientSocket.sendall(data)
20	+
21	+	#receiving reply from the server
22	+	dataFromServer = str(TCPclientSocket.recv(1024))
23	+	print("Message received from the server: ", str(dataFromServer))
24	+
25	+

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Projects/0_TCP_server/server.py

1	+	import socket
2	+
3	+	serverAddressPort = ("127.0.0.1", 65432)
4	+
5	+	bytesToSend = b'Hey there! We received the message.'
6	+
7	+	# Creating a TCP/IP socket
8	+	TCPServerSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
9	+
10	+	# Binding server socket to the port
11	+	TCPServerSocket.bind(serverAddressPort)
12	+	print("Server up and Listening")
13	+
14	+
15	+	# Listening for incoming messages
16	+
17	+	TCPServerSocket.listen(10)
18	+	msg, address = TCPServerSocket.accept()
19	+
20	+	while 1:
21	+	datafromClient = msg.recv(1024)
22	+	msg.sendall(datafromClient)
23	+
24	+