Hi list, I have been struggling with this problem for five days now, consulted the FAQ's, the example and lots of Google, but I seem to be missing something and was hoping somebody would be able to point me in the right direction. I am trying to use Squid as reverse proxy in our DMZ for several servers on the inside. What I have build so far is this: Internet------firewall-----Squid-----firewall-----internal servers The problem I am facing is the following error message I get when accessing from the outside world. The requested URL could not be retrieved ________________________________________ While trying to retrieve the URL: / The following error was encountered: * Invalid URL Some aspect of the requested URL is incorrect. Possible problems: * Missing or incorrect access protocol (should be `http://'' or similar) * Missing hostname * Illegal double-escape in the URL-Path * Illegal character in hostname; underscores are not allowed I have connectivity from outside to Squid (hence the above message), the Squid box can talk to both the inside servers and the outside world, DNS is working correctly (both inside and outside), and the inside servers can reach the Squid box. Now the strange thing is that when accessing Squid from the inside, I also get this message. Please find my config below. ====================================================================================================================== ssl_unclean_shutdown on # Squid luistert op... # http_port 80 accel defaultsite=www.meandermc.nl vhost # interne BackendServers definieeren # cache_peer op SSL # Server 3 webserver cache_peer 10.32.31.114 parent 80 0 no-query originserver login=PASS name=vhost3 acl vhost3_domains dstdomain kiwiextern.meandermc.nl cache_peer_access vhost3 allow vhost3_domains http_access allow vhost3_domains #Access Control List # Server ACL's acl webserver dst 10.32.31.114 #Connection ACL acl manager proto cache_object acl local src 10.0.0.0/255.0.0.0 # Port ACL acl Safe_ports port 80 443 1494 2598 # http acl SSL_ports port 443 1494 2598 # https acl purge method PURGE acl CONNECT method CONNECT # http access http_access allow CONNECT SSL_ports http_access allow CONNECT Safe_ports http_access deny CONNECT !SSL_ports http_access allow localhost http_access allow manager localhost http_access allow webserver miss_access allow all miss_access allow webserver http_access allow url_allow http_access allow SSL_ports http_access deny !Safe_ports http_access deny !SSL_ports http_access deny all miss_access deny all http_access deny manager never_direct allow all #geen Cacheing no_cache deny all visible_hostname portal.meandermc.nl deny_info TCP_RESET all #timeout en error handling retry_on_error on read_timeout 15 minutes half_closed_clients off memory_pools on positive_dns_ttl 24 hours negative_dns_ttl 30 seconds request_timeout 60 seconds connect_timeout 4 hours pconn_timeout 4 hours ie_refresh on emulate_httpd_log off log_ip_on_direct on ============================================================================================================== Any help is deeply appreciated! Best regards, Rene