|Subject:||Validate the SSH binary is good enough|
For reasons I don't entirely understand, although Net::OpenSSH passes tests and installs cleanly it doesn't work when used as documented in the synopsis. I have a version that does not implement the -M flag, which is critically needed for Dackup. It might be a good idea to put a test for the flag in either the Makefile.PL or in the test suite. I ultimately solved the problem for myself by uninstalling the default Debian "ssh" and installing a newer replacement OpenSSH version that contained a -M implementation.