[root@server dnsmasq-2.38]# service libvirtd start
Starting libvirtd daemon:                                  [  OK  ]
[root@server dnsmasq-2.38]# ps aux | grep libvirt
root     18736  0.0  0.2   3304  1228 ?        S    21:54   0:00 libvirt_qemud --system --daemon
root     18761  0.0  0.0      0     0 ?        Z    21:54   0:00 [libvirt_qemud] <defunct>
root     18786  0.0  0.1   3884   704 pts/1    S+   21:54   0:00 grep libvirt
[root@server dnsmasq-2.38]# dnsmasq
[root@server dnsmasq-2.38]# ps aux | grep libvirt
root     18736  0.0  0.2   3304  1228 ?        S    21:54   0:00 libvirt_qemud --system --daemon
root     18761  0.0  0.0      0     0 ?        Z    21:54   0:00 [libvirt_qemud] <defunct>
root     18791  0.0  0.1   3880   696 pts/1    S+   21:54   0:00 grep libvirt
[root@server dnsmasq-2.38]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:0F:B0:C9:43:03  
          inet addr:192.168.1.5  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::20f:b0ff:fec9:4303/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:412205 errors:0 dropped:0 overruns:0 frame:0
          TX packets:435213 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:301855088 (287.8 MiB)  TX bytes:77683328 (74.0 MiB)
          Interrupt:233 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:27855 errors:0 dropped:0 overruns:0 frame:0
          TX packets:27855 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:29096764 (27.7 MiB)  TX bytes:29096764 (27.7 MiB)

virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00  
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:29 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:7962 (7.7 KiB)

[root@server dnsmasq-2.38]# virsh --connect=qemu:///session net-destroy default
error: failed to get network 'default'

[root@server dnsmasq-2.38]#