[Zope] Apache / VHM ProxyPass issue - RESOLVED

[Dylan Reinhardt]

I managed to figure this one out on my own, so please ignore my previous 
message.

For the curious (and the benefit of posterity), what I did was:

1. Learned that ProxyRequests has nothing to do with enabling 
ProxyPass.  My bad.
2. Changed Listen to 76 so I could test this while running Zope on 80.
3. Noticed that as soon as I did that, I got the same critical error 98... 
but on port 76 this time.  Hmmm...
4. Eventually realized that the port error was an artifact of my reload 
script... a red herring.
5. Once Apache was on 76 it was obvious the vhosts should be on port 76 as 
well... and it worked!
6. I realized that Apache was only *listening* on port 80 before.  I was 
actually running on port 70, meaning that since I didn't say any 
differently, the vhosts were also on 70.  I needed to specify that the 
vhosts were on 80.  Grrr...
7. Fixed one additional error: the ProxyPass and ProxyPassReverse 
directives should have had trailing slashes.

And now it works like a charm.  At some point I'll add this to my 
Zope-on-a-RaQ howto, as the port/listen issue seems like an uncommon 
configuration on non-RaQ systems.

FWIW,

Dylan


At 09:37 AM 2/21/2003, Dylan Reinhardt wrote:
>Hi all,
>
>I've been running Zope 2.5.1 standalone on a Cobalt RaQ that runs a Red 
>Hat variant.  Apache 1.3.12 is installed, and now I'm working on getting 
>it to front for Zope.
>
>For the virtual site my_domain, whose stuff is stored in 
>zope_root/sites/my_site_folder, the following URL works great:
>
>http://my_ip:8080/VirtualHostBase/http/www.my_domain.com:80/sites/my_site_folder/VirtualHostRoot
>
>So I'm pretty sure I've got Zope & VHM set up correctly.
>
>Moving on to httpd.conf, I'm a bit less confident.  I'm happy to post the 
>whole thing if someone wants to see it, but here's what I believe are the 
>relevant settings (where stand-ins like my_ip match values in the above URL).
>
>-------------
>LoadModule proxy_module modules/libproxy.so
>AddModule mod_proxy.c
>
>Port 75
>Listen 80
>
>ProxyRequests On
>
>NameVirtualHost my_ip
><VirtualHost my_ip>
>ServerName www.my_domain.com
>ServerAdmin admin
>ProxyPass / 
>http://localhost:8080/VirtualHostBase/http/www.my_domain.com:80/sites/my_site_folder/VirtualHostRoot
>ProxyPassReverse / 
>http://localhost:8080/VirtualHostBase/http/www.my_domain.com:80/sites/my_site_folder/VirtualHostRoot
></VirtualHost>
>-------------
>
>Set up like this, I get a RaQ-specific server mis-configuration error when 
>I try to connect to a virtual host.  Even so, a virtual host set up with 
>DocumentRoot works fine.  If I comment out the ProxyRequests directive, 
>there doesn't appear to be a config error, but also there's no proxy service.
>
>Looking through the error logs, there is one entry that looks promising:
>
>[crit] (98)Address already in use: make_sock: could not bind to port 80
>
>Which confuses me, since Apache is correctly handling non-proxy requests 
>on 80 when this error kicks up.  It makes me wonder if something about my 
>proxy configuration is causing Apache to trip over itself.
>
>Does this problem look familiar to anyone here and/or have I made an 
>obvious mistake in my httpd.conf?  I've searched the Apache docs and lists 
>without seeing anything helpful... I thought people here might have more 
>hands-on experience with ProxyPass virtual hosting issues.
>
>Thanks in advance for any assistance,
>
>Dylan
>
>
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