InetLab

any other way to use file logging. I am trying to use
but log files gets too big and I can not find any config to limit log file size. what I want to achieve is to log into a new log file when the existing log file reaches certain size. the existing log file is renamed according to the time. just like any other logging utils.

You should use any logging framework for this. All you need to do is to implement ILogFactory and ILog interfaces.
https://docs.inetlab.com/smpp/v2/articles/tracing.html

In zip archive in Samples folder you can find LoggingWithNLog project.