Good day there. I'm using mod_proxy to redirect trafic to java applications running on JBoss instances. I have 3 JBoss instances running seperate apps, the redirects of 2 of these works fine with mod_proxy configuration but the third doesn't. The first 2 instances where set up a long time ago. I've used the one instance's configuration file for the third one as it was close to what I required. Here's the 2 configurations. Working: <VirtualHost *:80> ServerAdmin developers@xxxxxxxxxxx ServerName sub.domain1.com ProxyRequests Off ProxyPreserveHost On ProxyPass / http://sub.domain1.com:18080/ ProxyPass /media ! ProxyPassReverse / http://sub.domain1.com:18080/ ErrorLog /var/log/apache2/domain1-error_log CustomLog /var/log/apache2/domain1-access_log combined <Directory "/srv/www/vhosts/domain1"> Options Indexes FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> </VirtualHost> The one not working: <VirtualHost *:80> ServerAdmin developers@xxxxxxxxxxx ServerName sub.domain2.com ProxyRequests Off ProxyPreserveHost On ProxyPass / http://sub.domain2.com:28080/ #ProxyPass /media ! ProxyPassReverse / http://sub.domain2.com:28080/ ErrorLog /var/log/apache2/domain2-error_log CustomLog /var/log/apache2/domain2-access_log combined <Directory "/srv/www/vhosts/domain2"> Options Indexes FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> </VirtualHost> The one that's not working I can browse to http://sub.domain2.com:28080 without a problem but when I try to navigate to http://sub.domain2.com I get the following error irrespective of whether the server it's redirecting to is started or not. " Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request GET /. Reason: DNS lookup failure for: sub.domain2.com Additionally, a 502 Bad Gateway error was encountered while trying to use an ErrorDocument to handle the request. " I'm running on a SuSE and Apache 2.2.4 environment. Mod_Proxy is loading properly as is evident by the already working instances. I'm either missing the mistake in the vhost directive or forgot about a configuration in another file. Regards -- Richard van der Walt Product Development Stracienta SA (Pty) Ltd. E-mail: richard.vdwalt@xxxxxxxxxxxxxx E-mail legal disclaimer: http://www.stracienta.com/disclaimer.html www.stracienta.com --------------------------------------------------------------------- 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