I saw that daemon libvirt has stopped. Start result /etc/init.d/libvirtd start is Starting libvirtd daemon: libvirtd: error: Unable to initialize network sockets. Check /var/log/messages or run without --daemon for more info. I checked messages log, but I found nothing. So I edited /etc/libvirt/libvirtd.conf , uncommented line to get more verbose info log_outputs="3:syslog:libvirtd" and started libvirtd again. Result was the same as previous, but in messages log I found Jun 6 19:50:47 hv3 libvirtd: 39319: info : libvirt version: 0.10.2, package: 29.el6_5.9 (CentOS BuildSystem <http://bugs.centos.org>, 2014-06-10-12:45:15, c6b9.bsys.dev.centos.org) Jun 6 19:50:47 hv3 libvirtd: 39319: error : virNetTLSContextCheckCertTimes:146 : The server certificate /etc/pki/vdsm/certs/vdsmcert.pem has expired. I guess that libvirt is a problem, because vdsm work through that api own operations. How I could create new certificate?