Solutions for real-time file synchronization between servers A and B

To synchronize files in real-time between two servers, there are several solutions you can consider: rsync with inotifywait: Use rsync in combination with inotifywait. inotifywait monitors file system changes on server A, and every time a change is detected, rsync synchronizes the files with server B. This method is very efficient for almost real-time synchronization. [...]