This file is from the openssh package, not from pam. Reassigning.
> Current version runs update of dynamic part of motd on every login
> by ssh, what is slowing it significantly and clearly is not what author had
> in mind.
It is not intended that it significantly slow the login. But it is
intended that the motd always be up to date when shown to the user at
login. So calling pam_motd.so only with 'noupdate' is certainly not the
expected behavior.
The current design of update-motd is that each of the individual scripts
installed in /etc/update-motd.d are expected to ensure that they have a
reasonable up-to-date local cache of their information in the common
case which is updated out of band, such that the motd updating only has
to run a short sequence of shell scripts to concatenate information into
the motd file. If you have an /etc/update-motd.d script that is not
behaving this way, please help us identify which it is so that we can
resolve this.
I don't think there is actually a bug in the contents of
/etc/pam.d/sshd.
** Package changed: pam (Ubuntu) => openssh (Ubuntu)
** Changed in: openssh (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1853714
Title:
libpam-runtime misconfigurred module option in /etc/pam.d/sshd
Status in openssh package in Ubuntu:
Incomplete
Bug description:
Ubuntu version: Ubuntu 18.04.3 LTS
libpam-runtime: 1.1.8-3.6ubuntu2.18.04.1
In file /etc/pam.d/sshd there is part:
# Print the message of the day upon successful login.
# This includes a dynamically generated part from /run/motd.dynamic
# and a static (admin-editable) part from /etc/motd.
session optional pam_motd.so motd=/run/motd.dynamic
session optional pam_motd.so noupdate
but it should be:
# Print the message of the day upon successful login.
# This includes a dynamically generated part from /run/motd.dynamic
# and a static (admin-editable) part from /etc/motd.
session optional pam_motd.so noupdate motd=/run/motd.dynamic
Current version runs update of dynamic part of motd on every login by ssh,
what is slowing it significantly and clearly is not what author had in mind.
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