I'm new to libvirt and I'm facing a problem while migrating the guest domain. Both guest and host are of the same config(checked it with uname -a) Migrating using virsh, I get: virsh # migrate hda2 --desturi qemu+ssh://root@10.129.54.254/system root(a)10.129.54.254's password: error: operation failed: migration to 'tcp:kvm-lab:49168' failed: migration failed. The details of the problem are shown by the Virtual machine manger are: Unable to migrate guest: operation failed: migration to 'tcp:kvm-lab:49165' failed: migration failed Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 45, in cb_wrapper callback(asyncjob, *args, **kwargs) File "/usr/share/virt-manager/virtManager/migrate.py", line 523, in _async_migrate vm.migrate(dstconn, migrate_uri, rate, live, secure, meter=meter) File "/usr/share/virt-manager/virtManager/domain.py", line 1141, in migrate self._backend.migrate(destconn.vmm, flags, newname, interface, rate) File "/usr/lib/python2.7/dist-packages/libvirt.py", line 521, in migrate if ret is None:raise libvirtError('virDomainMigrate() failed', dom=self) libvirtError: operation failed: migration to 'tcp:kvm-lab:49165' failed: migration failed I've tried disabling apparmor and then migrating by- pre@pre-Inspiron-N4010:~$ sudo invoke-rc.d apparmor kill .: 35: Can't open /lib/apparmor/functions invoke-rc.d: initscript apparmor, action "kill" failed. and stopping iptables- pre@pre-Inspiron-N4010:~$ sudo /etc/init.d/iptables stop [sudo] password for pre: sudo: /etc/init.d/iptables: command not found Thank you.