Opsview Slaves and "Host key verification failed"

This is mostly for my own benefit. When setting up a new Opsview slave server, make sure ~nagios/.ssh/known_hosts has an entry for the FQDN of the slave, not just the short name.

Otherwise you’ll spend an hour beating your head against the wall trying to figure out why ssh slavehost date works, but send2slaves -t slavehost doesn’t.