Here's my situation: I'm setting up a test harness that will, from a central client, launch a number of virtual machine instances and then execute commands on them via ssh. The virtual machines will have previously unused hostnames and IP addresses, so they won't be in the ~/.ssh/known_hosts file on the central client. The problem I'm having is that the first ssh command run against a new virtual
![Can I automatically add a new host to known_hosts?](https://cdn-ak-scissors.b.st-hatena.com/image/square/1d7824625a3ecbc3a39062b14aaa9db8a44aa022/height=288;version=1;width=512/https%3A%2F%2Fcdn.sstatic.net%2FSites%2Fserverfault%2FImg%2Fapple-touch-icon%402.png%3Fv%3D9b1f48ae296b)