[aron9forever]

by what I've noticed, GameCP being the most popular does this:
p̶a̶r̶s̶e̶s̶ ̶t̶h̶e̶ ̶l̶o̶g̶s̶ ̶f̶r̶o̶m̶ ̶s̶o̶m̶e̶w̶h̶e̶r̶e̶ ̶(̶n̶o̶ ̶i̶d̶e̶a̶ ̶w̶h̶e̶r̶e̶,̶ ̶n̶o̶ ̶r̶c̶o̶n̶ ̶s̶e̶t̶ ̶o̶n̶ ̶s̶e̶r̶v̶e̶r̶s̶)̶
takes the logs directly from the server console
saves them in a database
prints them to the user
then prints them to a separate complete one-file-only log that's like a week of the server's activity