Dear all, This is my first post to this group so excuse me if this topic has been solved previously. If I want to shutdown a remote database, I could send a "systemctl stop mariadb" command using ssh. But I wonder if it is possible to update the openssh server to implement a specific handler/callback that catch this message and then call a C/C++ code. In short, is there any interface provided by the openssh server to add new functionality or call a dynamic library that implements this functionality? Thanks in advance, Gorka _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev