presto-main/src/main/java/io/prestosql/server/security/KerberosAuthenticator.java/KerberosAuthenticator/getLocalHost
class KerberosAuthenticator:    private static InetAddress getLocalHost()
    {
        try {
            return InetAddress.getLocalHost();
        }
        catch (UnknownHostException e) {
            throw new RuntimeException(e);
        }
    }