[libvirt-users] How can I open a libvirt remote connection with ssh

Hi, When I use 'virConnectOpenAuth' function to connect to '192.168.1.102' libvirtd with ssh, Code below, the screen print the dialog "root@192.168.1.102's password:" , and only After I type the password, the connection can be created. How can I connect to libvirtd with ssh automatically? No need to type the password manually. char *au[2] = {"root", "xxxx"}; virConnectAuth auth = { credTypes, sizeof(credTypes) / sizeof(int), virConnCb,/* callback function, actually was not be called after connect*/ au /* user and password */ }; conn = virConnectOpenAuth("qemu+ssh://192.168.1.102/system", &auth, 0); Thanks, Kevin