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. After about 55 concurrent gnome-sessions, GDM will fail to give a login window preventing other u

edited Aug 14, 2023 11:22PM in Linux Operating System (MOSC) 1 commentAnswered ✓

Oracle Product: Oracle Linux

Version: 7.9

We have multiple Oracle 7.9 Linux servers running VNC setup based on xinetd with XDMCP for GDM.  After about 55 concurrent gnome-sessions, GDM will fail to give a login window preventing other users from logging in.  

 

We have configured XDMCP to allow 100 MaxSession but we are being limited to 55.

/etc/gdm/custom.conf

[security]

AllowRemoteRoot=true

DisallowTCP=false

 

[xdmcp]

Enable=true

MaxSessions=100

 

From my research, I’m thinking the problem might be related to the “dbus-daemon resource limits” but I cant confirm.

 

gdm-launch-environment][326421]: AccountsService: Failed to connect to the D-Bus daemon: GDBus.Error:org.freedesktop.DBus.Error.LimitsExceeded: The maximum number of active connections has been reached

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