I never really directly used Linux so now as I need it I have a problem:
I want to change the config of frontail, I know this should be possible (as mentioned on GitHub) and I already managed to open the help of frontail in my raspberry pi console…
these are all command line options that you can use. Some are optional, some are mandatory.
In case you select a combination that is not valid or you do not use a mandatory option the usage/help will be shown.
This erorr message ( EADDRINUSE ) means that the service is already started and running in the background. To be more precise the port ( 9001 ) on this server is already in use. This could either mean that “a” service or frontail already is runing on port 9001.
I see two options here:
a) stop the service first with command
sudo systemctl stop fronttail.service
and then do your trial on the command line.
b) edit the configuration file ( /etc/systemd/system/frontail.service ) that starts the service automatically at system start
once the file is configured restart the service
sudo systemctl restart frontail.service
I suggest that you have a look into the existing service configuration file.
Check for the row that contains ExecStart and extract the options that are used there.
Go with options a) and do a few trials on the command line.
Once your are happy with the result and the command line is working edit the configuration file.
Keep a copy of the configuration file. In case the service does not come up again after modification you easily can switch back.