NSMCServerLauncher/dist/sysfiles/conftpl/logger.conf

[global]
log_dir = "./data/log/"
debug_log = true
# The format of time display. e.g. "2006-01-02 15:04:05"
# It is a strange way to express the format, but it is NOT MY FAULT.
# It is just the STRANGE feature of GoLang.
# See also https://golang.org/pkg/time/#Time.Format
time_format = "2006-01-02 15:04:05.999999999 -0700 MST"

# [system] For system log
# [mclauncher.stdout] For minecraft server stdout log
# [mclauncher.stderr] For minecraft server stderr log
# [ssh] For ssh server log

[system]
# Filename is the file to write logs to.  Backup log files will be retained
# in the same directory.
Filename = "System.log"
#MaxSize is the maximum size in megabytes of the log file before it gets
# rotated.
MaxSize = 20
# MaxAge is the maximum number of days to retain old log files based on the
# timestamp encoded in their filename.  Note that a day is defined as 24
# hours and may not exactly correspond to calendar days due to daylight
# savings, leap seconds, etc. The default is not to remove old log files
# based on age.
MaxAge = 365
# MaxBackups is the maximum number of old log files to retain.  The default
# is to retain all old log files (though MaxAge may still cause them to get
# deleted.)
MaxBackups = 300
# LocalTime determines if the time used for formatting the timestamps in
# backup files is the computer's local time.  The default is to use UTC
# time.
LocalTime = true
# Compress determines if the rotated log files should be compressed
# using gzip.
Compress = true

[mclauncher.stdout]
Filename = "MCLauncherOut.log"
MaxSize = 20
MaxAge = 365
MaxBackups = 300
LocalTime = true
Compress = true

[mclauncher.stderr]
Filename = "MCLauncherErr.log"
MaxSize = 20
MaxAge = 365
MaxBackups = 300
LocalTime = true
Compress = true

[ssh]
Filename = "SSH.log"
MaxSize = 20
MaxAge = 365
MaxBackups = 300
LocalTime = true
Compress = true