Tiny Python Syslog Server

pysyslog.py

#!/usr/bin/env python

## Tiny Syslog Server in Python.
##
## This is a tiny syslog server that is able to receive UDP based syslog
## entries on a specified port and save them to a file.
## That's it... it does nothing else...
## There are a few configuration parameters.

LOG_FILE = 'youlogfile.log'
HOST, PORT = "0.0.0.0", 514

#
# NO USER SERVICEABLE PARTS BELOW HERE...
#

import logging
import SocketServer

logging.basicConfig(level=logging.INFO, format='%(message)s', datefmt='', filename=LOG_FILE, filemode='a')

class SyslogUDPHandler(SocketServer.BaseRequestHandler):

	def handle(self):
		data = bytes.decode(self.request[0].strip())
		socket = self.request[1]
		print( "%s : " % self.client_address[0], str(data))
		logging.info(str(data))

if __name__ == "__main__":
	try:
		server = SocketServer.UDPServer((HOST,PORT), SyslogUDPHandler)
		server.serve_forever(poll_interval=0.5)
	except (IOError, SystemExit):
		raise
	except KeyboardInterrupt:
		print ("Crtl+C Pressed. Shutting down.")

It is working if send logs to "127.0.0.1" instead if "localhost"

The hostname localhost typically resolves to the 127.0.0.1 loopback address, and is reserved for this purpose in RFC 6761 section 6.3. However, not every platform defines the mapping.

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