I placed my squid.conf at the end of this post. Squid forward proxy works fine for all third party http and https sites, but fails when I try to proxy this specific portal that I put up on tomcat. This is the failure: 2011/03/22 07:02:03| Accepting bumpy HTTP connections at [::]:3128, FD 15. 2011/03/22 07:02:03| HTCP Disabled. 2011/03/22 07:02:03| Squid modules loaded: 0 2011/03/22 07:02:03| Adaptation support is on 2011/03/22 07:02:03| Ready to serve requests. 2011/03/22 07:02:04| storeLateRelease: released 0 objects -----BEGIN SSL SESSION PARAMETERS----- MHECAQECAgMBBAIANQQgKd/gfAJ8PhKA+JjxkCPjZf11uL6J1DKxC1vWtAgtntAE MLqexrqhHJDzrd3AH5V71jhuFf/e7HInhIzUKsjlxKRmJowAAyvZzCUCpwUPYyRQ NaEGAgRNiIG5ogQCAgEspAIEAA== -----END SSL SESSION PARAMETERS----- 2011/03/22 07:02:17| SSL unknown certificate error 19 in /C=IL/ST=Haifa/O=IBM/OU=HRL/CN=Tomcat 2011/03/22 07:02:17| fwdNegotiateSSL: Error negotiating SSL connection on FD 13: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed (1/-1/0) 2011/03/22 07:02:17| SSL unknown certificate error 19 in /C=IL/ST=Haifa/O=IBM/OU=HRL/CN=Tomcat 2011/03/22 07:02:17| SSL unknown certificate error 19 in /C=IL/ST=Haifa/O=IBM/OU=HRL/CN=Tomcat 2011/03/22 07:02:17| fwdNegotiateSSL: Error negotiating SSL connection on FD 13: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed (1/-1/0) 2011/03/22 07:02:17| SSL unknown certificate error 19 in /C=IL/ST=Haifa/O=IBM/OU=HRL/CN=Tomcat 2011/03/22 07:02:17| SSL unknown certificate error 19 in /C=IL/ST=Haifa/O=IBM/OU=HRL/CN=Tomcat 2011/03/22 07:02:17| fwdNegotiateSSL: Error negotiating SSL connection on FD 13: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed (1/-1/0) 2011/03/22 07:02:17| SSL unknown certificate error 19 in /C=IL/ST=Haifa/O=IBM/OU=HRL/CN=Tomcat Please advise, Thanks, Ariel. -------------------------------- squid.conf -------------------------------- # # Recommended minimum configuration: # acl manager proto cache_object acl localhost src 127.0.0.1/32 ::1 acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1 # Example rule allowing access from your local networks. # Adapt to list your (internal) IP networks from where browsing # should be allowed acl localnet src 10.0.0.0/8 # RFC1918 possible internal network acl localnet src 172.16.0.0/12 # RFC1918 possible internal network acl localnet src 192.168.0.0/16 # RFC1918 possible internal network acl localnet src fc00::/7 # RFC 4193 local private network range acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines acl SSL_ports port 443 8443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https 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 # # Recommended minimum Access Permission configuration: # # Only allow cachemgr access from localhost http_access allow manager localhost http_access deny manager # Deny requests to certain unsafe ports http_access deny !Safe_ports # Deny CONNECT to other than secure SSL ports http_access deny CONNECT !SSL_ports # Example rule allowing access from your local networks. # Adapt localnet in the ACL section to list your (internal) IP networks # from where browsing should be allowed http_access allow localnet http_access allow localhost always_direct allow all http_access allow all http_port 3128 ssl-bump key=squidkey.pem cert=squidcert.pem ssl_bump allow all # We recommend you to use at least the following line. hierarchy_stoplist cgi-bin ? # Leave coredumps in the first cache dir coredump_dir /var/spool/squid # Add any of your own refresh_pattern entries above these. refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . 0 20% 4320 icap_log /var/log/squid/icap.log icap_squid icap_enable on icap_send_client_ip on icap_service_failure_limit -1 icap_service_revival_delay 30 icap_service guardium respmod_precache bypass=0 icap://127.0.0.1:1344/guardium adaptation_access guardium allow all request_header_access Accept-Encoding deny all append_domain .haifa.ibm.com -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/squid-as-forward-proxy-for-portal-run-on-tomcat-tp3383986p3395677.html Sent from the Squid - Users mailing list archive at Nabble.com.