If you autenticate (need to enter root password root password when connecting), see if root password hasn't changed (type 'su -', without the quotes, in terminal, enter root password and see if it works). Also check if libvirtd is running. Type 'ps aux | grep libtvirt' in terminal, see if there is any process with this name. <div class="gmail_quote">On Tue, Feb 8, 2011 at 5:46 AM, Tapas Mishra <<a href="mailto:mightydreams@gmail.com">mightydreams@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">I have been regularly logging in to a virtualization setup of mine and have been using it. Today after noon I logged in as usual and typed virt-manager I got following error Unable to open a connection to the libvirt management daemon. Libvirt URI is: qemu:///system Verify that: - The 'libvirt-bin' package is installed - The 'libvirtd' daemon has been started - That you have access to '/var/run/libvirt/libvirt-sock' system': unable to connect to '/var/run/libvirt/libvirt-sock': Connection refused Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/connection.py", line 896, in _try_open None], flags) File "/usr/lib/python2.6/dist-packages/libvirt.py", line 111, in openAuth if ret is None:raise libvirtError('virConnectOpenAuth() failed') libvirtError: unable to connect to '/var/run/libvirt/libvirt-sock': Connection refused Any idea as what might be causing this problem and what should I check in here? -- _______________________________________________ virt-tools-list mailing list <a href="mailto:virt-tools-list@redhat.com">virt-tools-list@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/virt-tools-list" target="_blank">https://www.redhat.com/mailman/listinfo/virt-tools-list</a> </blockquote></div>