Hi, I try to set up a squid reverse-proxy in front of a Lotus Notes Webmail and an IIS-webserver - two different machines in the same domain. squid.conf looks like this: "https_port 443 cert=/usr/local/squid/cacert.pem key=/usr/local/squid/privkey.pem defaultsite=domino.oursite.de https_port 442 cert=/usr/local/squid/cacert.pem key=/usr/local/squid/privkey.pem defaultsite=iis.oursite.de cache_peer 10.0.1.1 parent 443 0 no-query proxy-only name=domino.oursite.de ssl sslflags=DONT_VERIFY_PEER cache_peer 10.0.1.2 parent 443 0 no-query proxy-only name=iis.oursite.de ssl sslflags=DONT_VERIFY_PEER acl all src 0.0.0.0/0.0.0.0 acl manager proto cache_object acl localhost src 127.0.0.1/255.255.255.255 acl to_localhost dst 127.0.0.0/8 acl SSL_ports port 443 563 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 563 # https, snews acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT acl data dstdomain iis.oursite.de acl mails dstdomain domino.oursite.de #cache_peer_access domino.oursite.de deny data cache_peer_access domino.oursite.de allow all #cache_peer_access web-eins.ad.worldgames2005.de deny mails cache_peer_access web-eins.ad.worldgames2005.de allow all" The idea is to forward requests for domino to the cache_peer 10.0.1.1. and requests for iis to the cache_peer 10.0.1.2. But EVERYTIME i change the cache_peer_access directiv to something other than "allow all" Squid aborts with the error assertion failed: cbdata.cc:402: "c->locks > 0" Changing the directive and restarting helps an squid works - but the second webserver cannot be reached. The error can be reproduced by activating the cache_peer_access-directive with a content other than "allow all" What's wrong ? How can i get it working? Any help is very much appreciated. Thanks, Michael __________________________________________________________ Mit WEB.DE FreePhone mit hoechster Qualitaet ab 0 Ct./Min. weltweit telefonieren! http://freephone.web.de/?mc=021201