[Expired for openssh (Ubuntu) because there has been no activity for 60
days.]
** Changed in: openssh (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1834128
Title:
Multiple sshd services cannot be executed
Status in openssh package in Ubuntu:
Expired
Bug description:
OpenSSH 7.6p1
Ubuntu 18.04.2 (LTS) (Bionic)
See also Ticket #1831765, #1690485, and #1832110 regarding the path of
the privilege separation directory (aka: /run/sshd).
The current Debian installer sets the RuntimeDirectory=sshd (i.e.
/run/sshd) in sshd.service (i.e. /lib/systemd/system/sshd.service) and
sshd@.service (i.e. /lib/systemd/system/sshd@.service). This is not
the best means of implementing this service. The problem is that the
systemd deletes the RuntimeDirectory resource as soon as the service
is stopped. When this happens, other sshd services will fault since
the privileged separation directory is no longer there. We need to
modify the configuration as follows:
1) Create /usr/lib/tmpfiles.d/sshd.conf that defines the /run/sshd directory
with root:root as the owner and the protection of 0755.
2) Change the assignment of the RuntimeDirectory in sshd.service to something
other than sshd (i.e. /run/sshd).
3) Change the assignment of the RuntimeDirectory in sshd@.service to
something other than sshd (i.e. /run/sshd).
Both OpenSSH and Ubuntu have declined to provision a means of
adjusting the Privilege Separation directory. Since both teams do not
want to address this, we need to have a means of implementing multiple
instance sshd invocation using systemd and avoiding using the
RuntimeDirectory assignment of /run/sshd.
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