BrokenPipeError: [Errno 32] Broken pipe

[thomas-hn]

Hello,

in the log "System => Log Files => Backend" of my OPNsense 20.7.3-amd64 I'm getting a lot of errors regarding "Broken Pipe":

Code Select Expand


2020-10-03T18:22:04 configd.py[99296] unable to sendback response [OK ] for [dyndns][reload][None] {9760f158-f647-47c8-a6bf-4636d2ebf47a}, message was Traceback (most recent call last): File "/usr/local/opnsense/service/modules/processhandler.py", line 202, in run self.connection.sendall(('%s\n' % result).encode()) BrokenPipeError: [Errno 32] Broken pipe

2020-10-03T18:12:04 configd.py[99296] unable to sendback response [OK ] for [dyndns][reload][None] {8bae6717-80e7-4052-a4c2-de7c14ee0e35}, message was Traceback (most recent call last): File "/usr/local/opnsense/service/modules/processhandler.py", line 202, in run self.connection.sendall(('%s\n' % result).encode()) BrokenPipeError: [Errno 32] Broken pipe

2020-10-03T18:05:02 configd.py[99296] unable to sendback response [OK ] for [interface][newip][['ix0']] {2002f95d-cf17-4130-8dad-27338170a6a1}, message was Traceback (most recent call last): File "/usr/local/opnsense/service/modules/processhandler.py", line 202, in run self.connection.sendall(('%s\n' % result).encode()) BrokenPipeError: [Errno 32] Broken pipe

2020-10-03T18:04:52 configd.py[99296] unable to sendback response [OK ] for [interface][linkup][['start', 'ix0']] {fa705b72-dcbe-49af-95f2-bd4966c646f7}, message was Traceback (most recent call last): File "/usr/local/opnsense/service/modules/processhandler.py", line 202, in run self.connection.sendall(('%s\n' % result).encode()) BrokenPipeError: [Errno 32] Broken pipe


As far as I know, the problem is that OPNsense loses its Pipe to the specific backend service. Whenever a module runs into the "BrokenPipeError" the GUI cannot provide any data about this module anymore (e.g. loading "Services => Dynamic DNS" hangs).

Does someone know this problem and how to fix it? As you can see in my attached lines of the log, different modules are affected.

Thanks,

Thomas

[thomas-hn]

It seems that the IPS (Services => Intrusion Detection) blocked something which causes the pipes between OPNsense and its Backend to break. After deactivating the IPS, the problems with the BrokenPipes seem to be gone.