How do I run the SSH command to set StrictHostKeyChecking=no?

Question

I'm trying to run the command ssh -o StrictHostKeyChecking=no but I'm a bit lost as to how to run it. I've tried running it from a shell script, but the output was the man page or settings that lists out all the parameters.

I then tried running that command from the shell (Cygwin) itself, but got the same man output. How do I run the command? Do I need to provide credentials or anything?

Answer 1

Taken from my answer on Ask Different:

You can simply try it as it is without confitguration, just on commandline:

sftp -o StrictHostKeyChecking=no hostname

but I don't think it does all what you need. If you want to ignore all hostkey checking, you need to set up you known_hosts file to /dev/null so there will be never anything stored:

sftp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null hostname

or in /etc/ssh_config:

Host hostname
    StrictHostKeyChecking no
    UserKnownHostsFile /dev/null

for specific hostname or you can use * for all host names