Checking refusal of a network connection

Markus Elfring Markus.Elfring at web.de
Fri May 31 13:39:59 EDT 2019


> 	Well, providing minimal code samples that produce the problem would be a start.

I prefer an other approach to clarify relevant software configuration differences.


> 	Otherwise we are just guessing...

I can offer other data before.


> Maybe you have a firewall problem.

I hope not.

I can try another server variant out as expected.


elfring at Sonne:~/Projekte/Python> /usr/bin/python3 test-server2.py &
[1] 14067
elfring at Sonne:~/Projekte/Python> /usr/bin/ss -t -l -p -H|grep python
LISTEN    0          5              127.0.0.1:search-agent         0.0.0.0:*     users:(("python3",pid=14067,fd=3))
elfring at Sonne:~/Projekte/Python> /usr/bin/python3 socket-send_json_data.py --server_id localhost --server_port 1234
Using Python version:
3.7.2 (default, Dec 30 2018, 16:18:15) [GCC]
elfring at Sonne:~/Projekte/Python> Result:
…


Can connections work also with a network service address like “[::1]:35529”
(which would be used by the C++ server implementation so far)?
How does the software situation look like for the support of the IPv6 loopback address?

Regards,
Markus


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