On Tue, 2019-08-20 at 16:00 +0900, Hong Cho wrote: > Thank you for the reply. > > I changed the remote command to a generic example because in our > case, we > are using an internal binary that I didn't want to make public. I > thought > it wouldn't matter, but apparently, it does. I am sorry I can't share > more > about this tool. > > BTW, our environment is based on FreeBSD, not on Linux. In our case, > because "isatty" is set to 0, it never closes. It never closes, because the `tail -f` never exists and never closes the stdout and stderr that are connected to ssh channels. Yes, this is a difference from the previous openssh versions, but I think this is a correct behavior. Previously, the ssh ran the command in background and closed its IO. If you wish to run something in the background, there are other ways to achieve (nohup and IO redirect), which will work just fine also with OpenSSH 8.0: ssh user@xxxxxxxxxxx 'mohup tail -f /var/xxx > foo.out 2> foo.err < /dev/null &' Regards, -- Jakub Jelen Senior Software Engineer Security Technologies Red Hat, Inc. _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev