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From Marc Slemko <ma...@znep.com>
Subject Re: mod_proxy/574: Proxy reports "Address not found" for servers that exist
Date Tue, 13 May 1997 17:20:09 GMT
The problem is that there is no reverse DNS for it period.  I think this
problem was introduced with with the proxy_host2addr return code checking
added before b10...

On Tue, 13 May 1997, Chuck Murcko wrote:

> Does the proxy machine find the host using nslookup? If not, you may need
> an /etc/resolv.conf change.
> 
> > 
> > >Number:         574
> > >Category:       mod_proxy
> > >Synopsis:       Proxy reports "Address not found" for servers that exist
> > >Confidential:   no
> > >Severity:       serious
> > >Priority:       medium
> > >Responsible:    apache (Apache HTTP Project)
> > >State:          open
> > >Class:          sw-bug
> > >Submitter-Id:   apache
> > >Arrival-Date:   Tue May 13 09:40:01 1997
> > >Originator:     holt@smarthealth.com
> > >Organization:
> > apache
> > >Release:        1.2b10
> > >Environment:
> > SunOS rabies 5.5 Generic sun4m sparc SUNW,SPARCstation-20
> > GCC 2.7.2
> > >Description:
> > Trying to access http://38.211.174.34/ through mod_proxy, returns an error from
> > the proxy: 
> >         Proxy Error
> >         The proxy server could not handle this request. 
> >         Reason: Address not found 
> > 
> > Accessing this server through a CERN httpd 3.0a proxy works fine.
> > 
> > In the proxy-errors file, there are messages corresponding to attempts
> > to access this URL, which look like:
> > 
> >         [Tue May 13 13:08:48:32 1997] Invalid URI in request
> > 
> > An excerpt from our configuration file follows, with the names changed:
> > 
> > ServerType standalone
> > HostnameLookups off
> > User nobody
> > Group nobody
> > BrowserMatch Mozilla/2 nokeepalive
> > ServerAdmin me@ourdomain.com
> > ServerName ourdomain.com
> > ServerRoot /usr/local/etc/httpd
> > PidFile /var/run/httpd.pid
> > ScoreBoardFile /var/run/apache_status
> > Timeout 300
> > KeepAlive On
> > Listen 1.2.3.4:8080
> > Listen 80
> > AccessConfig /dev/null
> > ResourceConfig /dev/null
> > <VirtualHost 1.2.3.4:8080>
> >   ErrorLog /var/log/httpd/proxy-errors
> >   TransferLog /var/log/httpd/proxy-log
> >   ProxyRequests On
> >   NoCache *
> >   ProxyBlock ourdomain.com ourotherdomain.com onemoredomain.com
> >   # Only proxy on this port, don't serve documents 
> >   <Directory />
> >     order deny,allow
> >     deny from all
> >   </Directory>
> > </VirtualHost>                             
> > >How-To-Repeat:
> > <http://38.211.174.34/>, when accessed through mod_proxy
> > 
> > >Fix:
> > 
> > >Audit-Trail:
> > >Unformatted:
> > 
> > 
> > 
> 
> 
> -- 
> chuck
> Chuck Murcko            The Topsail Group             West Chester PA USA
> chuck@topsail.org
> 


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