python reports socket in use, netstat and others claim its not
- by captainmish
We have a strange socket issue with a RHES3 box:
Python 2.4.1 (#1, Jul 5 2005, 19:17:11)
[GCC 3.2.3 20030502 (Red Hat Linux 3.2.3-52)]
Type "help", "copyright", "credits" or "license" for more information.
>>> import socket
>>> s = socket.socket()
>>> s.bind(('localhost',12351))
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "<string>", line 1, in bind
socket.error: (98, 'Address already in use')
This seems normal, lets see what has that socket:
# netstat -untap | grep 12351
{no output}
# grep 12351 /proc/net/tcp
{no output}
# lsof | grep 12351
{no output}
# fuser -n tcp 12351
{no output, repeating the python test fails again}
# nc localhost 12351
{no output}
# nmap localhost 12351
{shows port closed}
Other high ports work fine (eg 12352 works)
Is there something magic about this port? Is there somewhere else I can look? Where does python find out that socket is in use that netstat doesnt know about? Any other way I can find out what/if that socket is?
