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Questions tagged [dbus]

35 questions
48
votes
7 answers

How to find other end of unix socket connection?

I have a process (dbus-daemon) which has many open connection over UNIX sockets. One of these connections is fd #36: =$ ps uw -p 23284 USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND depesz 23284 0.0 0.0 24680 1772 ? …
user13185
22
votes
1 answer

Starting systemd services sharing a session D-Bus on headless system

I need help starting services that communicate via a session (not system) D-Bus on a headless Linux system. The key is that no-one will be logged in on the headless system. So far I've been able to start a D-Bus daemon and test the D-Bus…
Ole Wolf
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22
votes
4 answers

How to configure D-Bus and SSH X-Forwarding to prevent SSH from hanging on exit?

I am attempting to run various Gnome applications via X11 Forwarding and SSH. Some applications will cause the 'dbus-launch' application to be spawned first. The problem is that dbus-launch doesn't close when the X application is exited, and…
taftster
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18
votes
4 answers

Cannot use `systemctl --user` due to "Failed to get D-bus connection: permission denied"

I'm trying to set up user-level services, using this answer to a similar question. I have create the required files and rebooted. I'm making progress because I now get "Failed to get D-bus connection: permission denied" when it was "Failed to get…
xenoid
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8
votes
2 answers

Access D-Bus remotely using socat

Description: I'd like to access a D-Bus system service from another machine, knowing only machine's IP address and the service to connect to. What I have recently found is Gabriel (D-Bus over SSH). I have compiled its GIT version (hosted on…
schedar
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6
votes
2 answers

Slow authentication on Fedora VM due to /var/run/dbus/system_bus_socket connect timeout

I have this Fedora VM that for some reason after a while always starts having very slow "sudo" authentication (or an authentication in general, like GUI apps asking for credentials). It's will work normally until at some moment (*) it starts waiting…
Quintesse
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3
votes
0 answers

Obscure systemd-logind message on Centos 7 running on OpenVZ 7

I am seeing the message below appear several times at random times on a Centos 7 64-bit virtual private server running on OpenVZ 7. I have no idea what it means, how to fix it or if it can be safely ignored. Any insights would be greatly…
Esteban
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3
votes
2 answers

Getting "Couldn't connect to realm service" error while joining rhel7 instance to a domain

I am trying to join a rhel7 node to a domain using a chef cookbook but getting error: realm: Couldn't connect to realm service: Error calling StartServiceByName for org.freedesktop.realmd: GDBus.Error:org.freedesktop.DBus.Error.TimedOut: Activation…
Sameer T
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3
votes
1 answer

How do I determine the Linux user/group which executes systemd manager jobs?

I am trying to determine which Linux user/group runs systemd jobs so that I can set D-Bus permissions accordingly. When I do this: sudo systemctl start myservice That ultimately calls an executable which attempts to register itself on D-Bus,…
RandomUser
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3
votes
1 answer

How do I properly launch a dbus-monitor --session as root?

I am working on a script that will detect if and when a Gnome session is "locked" by a user in order to kick that user and prevent people locking screens in a public use lab. However, it seems the only way to do this is to launch a dbus-monitor as…
Merglyn
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3
votes
0 answers

Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory

My server on Centos 6.6 went down Phusion Passanger refuses to start of with following error: stdin: is not a tty /etc/init/delayed_job.conf: line 7: description: command not found start: Unable to connect to system bus: Failed to connect to socket…
skatkov
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3
votes
2 answers

system suspend - dbus upower signals are not seen

I want to get notifications via dbus when the system resumes from suspended state. Following these existing questions: What DBus signal is sent on system suspend? How do I detect when my system wakes up from suspend via DBus or similar in a python…
totaam
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3
votes
0 answers

CentOS: how to fix GDBus.Error:org.freedesktop.DBus.Error.LimitsExceeded (Maximum active connections)?

On a CentOS 7 server I'm getting this error while trying to reboot: # reboot Error getting authority: Error initializing authority: GDBus.Error:org.freedesktop.DBus.Error.LimitsExceeded: The maximum number of active connections for UID 0 has been…
1Z10
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2
votes
1 answer

Is there a way to reliably check that systemd supports --user?

I'm trying to set up some user services using Ansible and systemd. On Ubuntu and RHEL 7 I'm getting # systemctl --user status Failed to get D-Bus connection: Connection refused For Ubuntu I clarified the error, it's because of…
oblio
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2
votes
2 answers

Why is dbus-org.freedesktop.timedate1 started so frequently?

I have some Ubuntu 18.04.1 servers. They all show this service being started rougly every 10 minutes. Jan 7 06:29:05 csrf-prod1-vm dbus-daemon[434]: [system] Activating via systemd: service name='org.freedesktop.timedate1'…
OrangeDog
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1
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