Got following error Invalid command 'ProxyHTMLEnable', perhaps misspelled or defined by a module not included in the server configuration Saw this thread http://ubuntuforums.org/showthread.php?t=1395586 in /etc/apache2/mods-enabled/ I see alias.conf authz_default.load autoindex.conf deflate.conf dump_io.load mime.load proxy.conf proxy.load setenvif.conf alias.load authz_groupfile.load autoindex.load deflate.load env.load negotiation.conf proxy_html.conf reqtimeout.conf setenvif.load auth_basic.load authz_host.load cgid.conf dir.conf jk.load negotiation.load proxy_html.load reqtimeout.load status.conf authn_file.load authz_user.load cgid.load dir.load mime.conf proxy_ajp.load proxy_http.load rewrite.load status.load and in /etc/apache2/apache2.conf Include /etc/apache2/mods-enabled/*.load Include /etc/apache2/mods-enabled/*.conf If you see above output of directory it seems that proxy_html is on. Vhost definition where I did on A is as follows <VirtualHost *:80> ServerAdmin webmaster@localhost ServerName site4 ProxyRequests off <Proxy *> Order deny,allow Allow from all </Proxy> ProxyPreserveHost Off ProxyPass /sakai http://myinternal.server.in ProxyHTMLURLMap http://myinternal.server.in <Location /sakai/> ProxyPassReverse http://myinternal.server.in ProxyHTMLEnable On ProxyHTMLURLMap / /sakai/ RequestHeader unset Accept-Encoding </Location> </VirtualHost> --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx