Obviously as the error says you have DNS problem. Apache can not resolve sub.domain2.com into IP address. Contact who ever is maintaining the DNS server in your company and ask them to add an alias for sub.domain2.compointing to the same IP address as sub.domain1.com.
Igor On Tue, May 4, 2010 at 5:56 AM, Richard van der Walt < richard.vdw...@stracienta.com> wrote: > 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 develop...@company.com > 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 develop...@company.com > 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.vdw...@stracienta.com > > 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-unsubscr...@httpd.apache.org > " from the digest: users-digest-unsubscr...@httpd.apache.org > For additional commands, e-mail: users-h...@httpd.apache.org > >
