Hello again There´s something very strange with the Apache + ZServer solution presented in the zope.org howtos. The problem is: I have a Zope 2.1.6 with SiteAccess and Apache 1.3.12 with the mod_proxy and mod_expire set up to that all request get at por 80 by Apache are proxed back to port 8080 of Zope. SiteAccess garantees that this cycle works all the time and port 8080 is never accessed directly. This works fine. The problem is that the Apache proxy is not caching the pages as it should, so that requests made to Zope once are not made again until expired from the cache. This results that every single request made to Apache goes directly to Zope and than the lack of robustness of ZServer makes it very slow and unstable (as expected). The strange thing is that the directory used for the cache is been filled up with files but it looks like Apache is ignoring them and going directly to Zope. When I shut down Zope, it never goes to the cached files and when I make requests to Apache the Zope´s log grows up all the time for the same bunch of pages. Here´s the configuration in my httpd.conf CacheRoot "D:/Program Files/Apache Group/Apache/proxy" CacheSize 50000 CacheGcInterval 1 CacheMaxExpire 24 CacheLastModifiedFactor 0.1 CacheDefaultExpire 1 CacheForceCompletion 90 ProxyPass /zope/ http://10.10.10.176:8080/ ProxyPassReverse /zope/ http://10.10.10.176:8080/ ExpiresActive On ExpiresDefault A86400 ExpiresByType image/gif A604800 ExpiresByType image/jpg A604800 ExpiresByType text/html M43200 Anyone knows why this happens? What´s the workaround? I searched through all the web and find nothing about the mod_proxy configuration so it´s turning to be extremelly difficult to maintain the Zope site, even with the robust Apache as the front-end. Thanks