How to block shutdown or reboot in Debian when other users logged in












0














I want to prevent users to start shutdown or reboot when another user is logged in. Users can be a TTY user (Ctrl+Alt+F3) or a ssh user from a client host.



In OpenBSD, I use polkit org.xfce.session.policy with a rule file to prevent such actions.



I need to find how to do this in Debian Testing (aka Buster).

I found org.freedesktop.login1.policy with actions

- org.freedesktop.login1.power-off

- org.freedesktop.login1.power-off-multiple-sessions.



and made rule files for these actions but it does not block shutdown or restart.

It seems to me that polkit is not responsible alone for these actions.



I don't know where to look for this; perhaps systemd or PAM ?






linux systemd xfce pam polkit






share
























  • What kind of rule files are you using ? polkit uses js syntax as opposed to the older policykit ini-style...
    – don_crissti
    1 hour ago






  • 1




    I use js syntax pkexec version 0.105
    – ctac_
    50 mins ago










  • If you have the right rules there's nothing else. logind executes those actions as long as the polkit authorization allows it
    – don_crissti
    49 mins ago










  • @K7AAY - what is the point of linking to wikipedia articles ? Those projects have their own sites, you know...
    – don_crissti
    47 mins ago
















0














I want to prevent users to start shutdown or reboot when another user is logged in. Users can be a TTY user (Ctrl+Alt+F3) or a ssh user from a client host.



In OpenBSD, I use polkit org.xfce.session.policy with a rule file to prevent such actions.



I need to find how to do this in Debian Testing (aka Buster).

I found org.freedesktop.login1.policy with actions

- org.freedesktop.login1.power-off

- org.freedesktop.login1.power-off-multiple-sessions.



and made rule files for these actions but it does not block shutdown or restart.

It seems to me that polkit is not responsible alone for these actions.



I don't know where to look for this; perhaps systemd or PAM ?






linux systemd xfce pam polkit






share
























  • What kind of rule files are you using ? polkit uses js syntax as opposed to the older policykit ini-style...
    – don_crissti
    1 hour ago






  • 1




    I use js syntax pkexec version 0.105
    – ctac_
    50 mins ago










  • If you have the right rules there's nothing else. logind executes those actions as long as the polkit authorization allows it
    – don_crissti
    49 mins ago










  • @K7AAY - what is the point of linking to wikipedia articles ? Those projects have their own sites, you know...
    – don_crissti
    47 mins ago














0












0








0







I want to prevent users to start shutdown or reboot when another user is logged in. Users can be a TTY user (Ctrl+Alt+F3) or a ssh user from a client host.



In OpenBSD, I use polkit org.xfce.session.policy with a rule file to prevent such actions.



I need to find how to do this in Debian Testing (aka Buster).

I found org.freedesktop.login1.policy with actions

- org.freedesktop.login1.power-off

- org.freedesktop.login1.power-off-multiple-sessions.



and made rule files for these actions but it does not block shutdown or restart.

It seems to me that polkit is not responsible alone for these actions.



I don't know where to look for this; perhaps systemd or PAM ?






linux systemd xfce pam polkit






share















I want to prevent users to start shutdown or reboot when another user is logged in. Users can be a TTY user (Ctrl+Alt+F3) or a ssh user from a client host.



In OpenBSD, I use polkit org.xfce.session.policy with a rule file to prevent such actions.



I need to find how to do this in Debian Testing (aka Buster).

I found org.freedesktop.login1.policy with actions

- org.freedesktop.login1.power-off

- org.freedesktop.login1.power-off-multiple-sessions.



and made rule files for these actions but it does not block shutdown or restart.

It seems to me that polkit is not responsible alone for these actions.



I don't know where to look for this; perhaps systemd or PAM ?






linux systemd xfce pam polkit




linux systemd xfce pam polkit





share














share












share



share








edited 55 mins ago









K7AAY

364319




364319










asked 1 hour ago









ctac_

1,374128




1,374128












  • What kind of rule files are you using ? polkit uses js syntax as opposed to the older policykit ini-style...
    – don_crissti
    1 hour ago






  • 1




    I use js syntax pkexec version 0.105
    – ctac_
    50 mins ago










  • If you have the right rules there's nothing else. logind executes those actions as long as the polkit authorization allows it
    – don_crissti
    49 mins ago










  • @K7AAY - what is the point of linking to wikipedia articles ? Those projects have their own sites, you know...
    – don_crissti
    47 mins ago


















  • What kind of rule files are you using ? polkit uses js syntax as opposed to the older policykit ini-style...
    – don_crissti
    1 hour ago






  • 1




    I use js syntax pkexec version 0.105
    – ctac_
    50 mins ago










  • If you have the right rules there's nothing else. logind executes those actions as long as the polkit authorization allows it
    – don_crissti
    49 mins ago










  • @K7AAY - what is the point of linking to wikipedia articles ? Those projects have their own sites, you know...
    – don_crissti
    47 mins ago
















What kind of rule files are you using ? polkit uses js syntax as opposed to the older policykit ini-style...
– don_crissti
1 hour ago




What kind of rule files are you using ? polkit uses js syntax as opposed to the older policykit ini-style...
– don_crissti
1 hour ago




1




1




I use js syntax pkexec version 0.105
– ctac_
50 mins ago




I use js syntax pkexec version 0.105
– ctac_
50 mins ago












If you have the right rules there's nothing else. logind executes those actions as long as the polkit authorization allows it
– don_crissti
49 mins ago




If you have the right rules there's nothing else. logind executes those actions as long as the polkit authorization allows it
– don_crissti
49 mins ago












@K7AAY - what is the point of linking to wikipedia articles ? Those projects have their own sites, you know...
– don_crissti
47 mins ago




@K7AAY - what is the point of linking to wikipedia articles ? Those projects have their own sites, you know...
– don_crissti
47 mins ago















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