a very easy. But what will yum/RPM do during the next update ? Will it overwrite the file ? Will it write on display that the file was modified by an user (as under debian) ?
As far as I can tell, if the file is marked as a configuration file in the RPM, it will be left alone and the new configuration file will be renamed to file.rpmnew. If the file is not marked as a configuration file, it will be overwritten.
Regards,
Gabriel