WebVirtManager Error: Cannot recv data: Host key verification failed.: Connection reset by peer

Cannot recv data: Host key verification failed.: Connection reset by peer

This is a common error in WebVirtManager while using the ssh connection for quemu.

It can be solved by the following steps.

Step1: Login to the server via ssh as root.

Step2: Switch to nginx user as WebVirtManager use nginx user for authenticate on kvm.

#su -s /bin/bash nginx

Step3: Create ssh keys.

#ssh-keygen

Step4: Copy the public key to root user.

#ssh-copy-id root@localhost

Here we need to accept add key.

That's all…