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user management: clarify that password changes for PAM realm only apply to local node

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Reported in the community forum:
https://forum.proxmox.com/threads/158518/

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
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Fiona Ebner 2024-12-04 12:37:08 +01:00 committed by Thomas Lamprecht
parent 5107b302d3
commit 2ad2c765e9
1 changed files with 8 additions and 2 deletions
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pveum.adoc
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@ -170,8 +170,14 @@ Linux PAM Standard Authentication
As Linux PAM corresponds to host system users, a system user must exist on each
node which the user is allowed to log in on. The user authenticates with their
usual system password. This realm is added by default and can't be removed. In
terms of configurability, an administrator can choose to require two-factor
usual system password. This realm is added by default and can't be removed.
Password changes via the GUI or, equivalently, the `/access/password` API
endpoint only apply to the local node and not cluster-wide. Even though {pve}
has a multi-master design, using different passwords for different nodes can
still offer a security benefit.
In terms of configurability, an administrator can choose to require two-factor
authentication with logins from the realm and to set the realm as the default
authentication realm.