Frantisek,
udev rules are for devices - USB or serial, not for network ports.
the permissions error you are experiencing is probably due the fact that
you are trying to listen on (bind to) port 80. only root is allowed to
bind to ports lower than 1024.
assuming that you are on a linux system, your options include:
- run as root:root
- listen on a higher port (only works if you can change the port on
whatever is sending data)
- use authbind to let weewx:weewx bind to port 80
- use iptables to REDIRECT traffic from port 80 to a high port
- use CAP_NET_BIND_SERVICE
here is the man page for authbind:
https://manpages.ubuntu.com/manpages/noble/en/man1/authbind.1.html
stack overflow and superuser have details about CAP_NET_BIND_SERVICE:
https://stackoverflow.com/questions/413807/is-there-a-way-for-non-root-processes-to-bind-to-privileged-ports-on-linux
https://superuser.com/questions/710253/allow-non-root-process-to-bind-to-port-80-and-443
serverfault shows how to do the iptables redirect:
https://serverfault.com/questions/112795/how-to-run-a-server-on-port-80-as-a-normal-user-on-linux
m
On Wednesday, February 7, 2024 at 12:57:45 AM UTC-5 [email protected] wrote:
@Matthew:
Any clue what should be modified (udev rules/group membership) for
interceptor driver? When I modify systemctl service to not run under
weewx:weewx everything is OK :)
*Feb 6 19:37:44 rocky-weather-machine weewxd[1612889]: CRITICAL
weewx.engine: **** self.server_bind()*
*Feb 6 19:37:44 rocky-weather-machine weewxd[1612889]: CRITICAL
weewx.engine: **** File "/usr/lib64/python3.6/socketserver.py", line
470, in server_bind*
*Feb 6 19:37:44 rocky-weather-machine weewxd[1612889]: CRITICAL
weewx.engine: **** self.socket.bind(self.server_address)*
*Feb 6 19:37:44 rocky-weather-machine weewxd[1612889]: CRITICAL
weewx.engine: **** PermissionError: [Errno 13] Operace zamítnuta*
*Feb 6 19:37:44 rocky-weather-machine weewxd[1612889]: CRITICAL __main__:
Unable to load driver: [Errno 13] Operace zamítnuta*
*Feb 6 19:37:44 rocky-weather-machine systemd[1]: weewx.service: Main
process exited, code=exited, status=4/NOPERMISSION*
*Feb 6 19:37:44 rocky-weather-machine weewxd[1612889]: CRITICAL __main__:
**** Exiting...*
*Feb 6 19:37:44 rocky-weather-machine systemd[1]: weewx.service: Failed
with result 'exit-code*
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