htaccess rewrite stopped working after a while
<p>I have 2 sites:</p>

<pre><code>site1.ru
site2.ru
</code></pre>

<p>It is necessary to implement such a scheme, to site1.ru/kv/ was called site2.ru without url rewrite</p>

<p>I have previously used such a structure</p>

<pre><code>RewriteCond %{REQUEST_URI} ^/kv 
RewriteRule ^(.*)$ http://site2.ru/login.aspx [L,P]
</code></pre>

<p>but for unknown reasons it stopped working by itself, and reason can not understand (the second server is running on iis within the local visibility)</p>