How to redirect siteA to siteB with A or CNAME records

subdomain.hostone.com --> subdomain.hosttwo.com

<?
Header( "HTTP/1.1 301 Moved Permanently" );
Header( "Location: " );
?>

<%@ Language=VBScript %>
<%
Response.Status="301 Moved Permanently"
Response.AddHeader "Location","http://subdomain.hosttwo.com"
%>

<script runat="server">
private void Page_Load(object sender, System.EventArgs e)
{
Response.Status = "301 Moved Permanently";
Response.AddHeader("Location","http://subdomain.hosttwo.com");
}
</script>