I am running Apace 2.2.11 on Windows XP as a caching proxy. An attempt by Apache to refresh a cached header always results in an access denied warning. This is shown in the error log as: cache_storage.c(272): Cached response for <url> isn't fresh. Adding/replacing conditional request headers. ........ '''''''' (OS 5)Access is denied. : disk_cache: rename tempfile to datafile failed I have reproduced this on 2.2.10 and 2.2.11, using both the available binaries and by building from scratch. Whilst this problem would appear to be a manifestation of the bug https://issues.apache.org/bugzilla/show_bug.cgi?id=38827, the suggested "Header unset Vary" work around fails to provide a solution. Please can you advise:- 1) What is the impact of this failure - is it just the cached header that will be incorrect or, if the contents have changed, will that also be wrong. 2) Is there a work around. 3) Is there a patch for this problem. I have been testing using a simplified httpd.conf file, the contents of which is contained below. Thanks Dave ServerRoot "C:/Apache22" LoadModule authz_host_module modules/mod_authz_host.so LoadModule headers_module modules/mod_headers.so LoadModule cache_module modules/mod_cache.so LoadModule disk_cache_module modules/mod_disk_cache.so LoadModule isapi_module modules/mod_isapi.so LoadModule log_config_module modules/mod_log_config.so LoadModule mime_module modules/mod_mime.so LoadModule negotiation_module modules/mod_negotiation.so LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_connect_module modules/mod_proxy_connect.so LoadModule proxy_http_module modules/mod_proxy_http.so DocumentRoot "C:/Apache22/htdocs" <Directory /> Options FollowSymLinks Order deny,allow Deny from all </Directory> Listen 80 ProxyRequests On <Proxy *> Order Deny,Allow Deny from all Allow from 192.168.0 </Proxy> <Directory "C:/ApacheCache"> AllowOverride None Order allow,deny Allow from all </Directory> CacheRoot c:/ApacheCache CacheEnable disk / Header unset Vary <Directory "C:/Apache22/htdocs"> Options Indexes FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> ErrorLog "c:/Apache22/logs/error.log" LogLevel debug LogFormat "%h %t \"%r\" %>s %B %X" common CustomLog "logs/access.log" common TypesConfig conf/mime.types --------------------------------------------------------------------- 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