Mailinglist Archive: opensuse (4054 mails)

["Albert" <albert@xxxxxxxxxxxx>]

Hi 

I’ve got a server that runs a custom daemon listening on port 4010
outputting data received from a data logger on a RS232 port. This has now
been running for 3 months. Every now and again there is some invalid data
from the data logger on the RS232 port which causes an exception to be
raised, the daemon is stopped and then restarted. It then binds to port 4010
again and continues as normal.

Today I was unable to connect to port 4010. The daemon could not even bind
to port 4010. When changing the port to port 4020 or 4015 it worked without
a problem, but changing back to port 4010 it was not possible to bind to
port 4010.

I did the following in order to try getting it back on:
- stopped the daemon for about 10 minutes before starting it again
- closed the port in the SuSE firewall to make sure there are no clients who
are trying to connect on the port.

None of this worked. I had to reboot the machine to get it working again.

Have anyone heard of this or know what it could be?

TIA

Albert

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