See also Ticket #1831765 and #1832110 regarding the path of the privilege separation directory (aka: /run/sshd).
This path is hard-coded into sshd and there is no means of changing its location. I have found that if the directory is missing, all ssh communication unceremoniously stops (iff UsePrivilegeSeparation yes). The original OpenSSH 7.6p1 assigns the privilege separation directory to "/var/empty" (see man sshd at openssh.com). When Ubuntu changed to systemd from Upstart, the privilege separation directory was changed from "/var/empty" to "/run/sshd". This is also supported by reviewing the value of /lib/systemd/system/ssh.service and look at the RuntimeDirectory=sshd. My work-around is to create a service that does nothing other than create the "/run/sshd" directory and define the RuntimeDirectory=(anything but sshd) in your .service file. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1690485 Title: openssh-server SIGSYS with 'UsePrivilegeSeparation sandbox' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1690485/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
