libvirt users - Nov 2014 - TCP or TLS Connection error

Hi all i am using libvirt 1.2.0 with xen hypervisor 4.4..

I am facing error while remotely connecting other libvirt using TCP or TLS.
I couldnt make libvirt to listen to the port.. I installed libvirt from
source in debian. I enabled --listen option by uncommenting
LIBVIRTD_ARGS="--listen"

 /opt/libvirt-1.2.1/daemon/libvirtd.sysconf ..
I killed the current libvirt. and started the daemon again..

when i gave ps aux | grep libvirtd

the listen is not enabled..

Pls guide me

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*Regards,Ajitha R*