code: public boolean verifyHost(String host, SshPublicKey pk) throws SshException {
  		return verifyHost(host, pk, true);
  	}
docs: <p>
  Verifies a host key against the list of known_hosts.
  </p>
  
  <p>
  If the host unknown or the key does not match the currently allowed host
  key the abstract <code>onUnknownHost</code> or
  <code>onHostKeyMismatch</code> methods are called so that the caller may
  identify and allow the host.
  </p>
  
  @param host
  the name of the host
  @param pk
  the host key supplied
  
  @return true if the host is accepted, otherwise false
  
  @throws SshException
  if an error occurs
  
  @since 0.2.0