[listener] ; host=192.168.0.100 port=1406 minThreads=4 maxThreads=100 cleanupInterval=60000 readTimeout=60000 maxRequestSize=16000 maxMultiPartSize=10000000 [logging] ; The logging settings become effective after you comment in the related lines of code in main.cpp. fileName=../logs/demo2.log minLevel=1 bufferSize=100 maxSize=1000000 maxBackups=2 timestampFormat=dd.MM.yyyy hh:mm:ss.zzz msgFormat={timestamp} {typeNr} {type} {thread} {msg} ; QT5 supports: msgFormat={timestamp} {typeNr} {type} {thread} {msg}\n in {file} line {line} function {function}