virsh-connect
Connect to a virtual machine hypervisor.
TLDR
Connect to the default hypervisor
$ virsh connect
Connect as root to the local QEMU/KVM hypervisor
$ virsh connect qemu:///system
Launch a new instance of the hypervisor and connect to it as the local user
$ virsh connect qemu:///session
Connect as root to a remote hypervisor using ssh
$ virsh connect qemu+ssh://[user_name@host_name]/system