If dbclient is given proxy command which does not start with exec, shell process is lingering alongside proxy command process. However, I've found that OpenSSH client (ProxyCommand option) prepends exec automatically.
I think it would be convenient if dbclient added exec by default, but this will break if someone is already using explicit exec in -J argument. Note that OpenSSH client also breaks with exec. So options are: 1. Just prepend exec to all proxy commands and make too clever people fix their scripts. 2. Check if proxy command starts with exec, if not, prepend it. 3. Add separate -o ProxyCommand option prepending exec (it also should substitute %h, %p, and %r to be compatible with OpenSSH). Leave -J as is for compatibility but mark it as deprecated. What is the best way? -- Regards, Konstantin
