If you get too many redirects it looks more like your Apache is also serving the domain “site-east.domain.com”
What i test in such a setup is the following.
- Setup the proxy config
- try to access the URL “http://master.domain.com/remote_site/”
- You must get the login for the remote monitoring site
Only if this works i continue with the config of the slave connection inside WATO.
There are many possible approaches for the configuration of your Apache.
Most examples i find are like the ones you posted.
<Location /remotesite>
Options +FollowSymLinks
RewriteEngine On
RewriteRule ^/.+/remotesite/(.*) http://remoteip/remotesite/$1 [P]
RewriteRule ^/.+/remotesite http://remoteip/remotesite [P]
</Location>
or
ProxyPass "/foo" "http://foo.example.com/bar"
ProxyPassReverse "/foo" "http://foo.example.com/bar"
This should also work if i remember correctly.
If you follow the Apache documentation, the ProxyPass is the better and preferred way 