When setting up a server using Python's SimpleHTTPServer, how can I restrict access so that the server only responds to requests from the local machine?
Is there a way to achieve this in a language-independent manner? Perhaps by assigning a specific port that is not accessible publicly, or configuring the firewall to block external access to that particular port?
This query resembles a previous one found at this link, but focuses specifically on a server built using Python's SimpleHTTPServer.
Utilizing the loopback interface is a viable option. The use of localhost or 127.0.0.1 points to the local address, bypassing the entire networking stack and remaining inaccessible via the network. For more information, refer to Wikipedia.
Referencing the SimpleHTTPServer example:
import SimpleHTTPServer
import SocketServer
PORT = 8000
Handler = SimpleHTTPServer.SimpleHTTPRequestHandler
httpd = SocketServer.TCPServer(("", PORT), Handler)
print "serving at port", PORT
httpd.serve_forever()
You have the ability to bind to a specific address, such as the one assigned to your machine/interface or, in this case, the loopback device.
httpd = SocketServer.TCPServer(("127.0.0.1", PORT), Handler)
To access the server, you can utilize http://127.0.0.1:8000/ or http://localhost:8000/. Note that the server will not be reachable using your machine's assigned IP address, both locally and through the network.
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