GitHub user slavkap added a comment to the discussion: Migration was refused
connection to the destination. Please check libvirt configurations
compatibility and firewall
@verendrakalsi, can you check that TCP port for libvirt is open?
`netstat -lntp | grep libvirtd`
this is in my lab
```
[root@cs-dev-kvm1-4 packages]# cat /etc/libvirt/libvirtd.conf | grep listen_tcp
#listen_tcp = 1
listen_tcp=0
[root@cs-dev-kvm1-4 packages]# virsh -c qemu+tcp://127.0.0.1/system
setlocale: No such file or directory
error: failed to connect to the hypervisor
error: unable to connect to server at '127.0.0.1:16509': Connection refused
```
after changing to `listen_tcp=1`
```
[root@cs-dev-kvm1-4 packages]# virsh -c qemu+tcp://127.0.0.1/system
setlocale: No such file or directory
Welcome to virsh, the virtualization interactive terminal.
Type: 'help' for help with commands
'quit' to quit
```
GitHub link:
https://github.com/apache/cloudstack/discussions/9987#discussioncomment-11394157
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