Just so you know making a change like this works for our tool. ssh user@xxxxxxxxxxx "ourtool > /var/tmp/output 2>/dev/null &" No "nohup" needed. Thanks for all the help. Hong. On Wed, Aug 21, 2019 at 8:01 AM Damien Miller <djm@xxxxxxxxxxx> wrote: > On Tue, 20 Aug 2019, Jakub Jelen wrote: > > > 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. > > AFAIK that's not the case - the behaviour change only affects programs > that output to stderr. > > OpenSSH 7.2 doesn't exit "tail -f &" either, because it doesn't > write anything to stderr. > > -d > _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
