Update script for known_hosts

update-hostkeys.sh

#!/bin/sh -e

if [ "$#" = "0" ]; then
  echo "missing hosts"
  exit 1
fi

for host in $@; do
  inet=`dig +short a $host`
  inet6=`dig +short aaaa $host`

  for entry in $host $inet $inet6; do
    ssh-keygen -f "$HOME/.ssh/known_hosts" -R $entry 2> /dev/null
  done

  ssh -o StrictHostKeyChecking=no root@$host true
done