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Error to test connectivity to internal MS Exchange server

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Hi, all

I am trying to setup MS webmail over rpc Exchange server access through squid (squid 3.1.19, SPARC, Solaris 10) from internet. Here is my pilot squid configuration (squid.conf):

https_port 156.146.2.196:443 accel cert=/opt/squid-3.1.19/ssl.crt/webmail_juicycouture_com.crt key=/opt/squid-3.1.19/ssl.crt/webmail_juicycouture_com.key cafile=/opt/apache2.2.21/conf/ssl.crt/DigiCertCA.crt defaultsite=webmail.juicycouture.com

cache_peer 10.150.2.15 parent 443 0 no-query originserver login=PASS ssl sslcert=/opt/squid-3.1.19/ssl.crt/webmail_katespade_com.crt sslkey=/opt/squid-3.1.19/ssl.crt/webmail_katespade_com.key sslcafile=/opt/apache2.2.21/conf/ssl.crt/DigiCertCA.crt name=exchangeServer

cache_peer_access exchangeServer allow all

http_access allow all

miss_access allow all

>From the access log of squid:

1337723055.845      7 207.46.14.63 TCP_MISS/503 3905 RPC_IN_DATA https://webmail.juicycouture.com/rpc/rpcproxy.dll - FIRST_UP_PARENT/exchangeServer text/html
1337723055.934      5 207.46.14.63 TCP_MISS/503 3932 RPC_IN_DATA https://webmail.juicycouture.com/rpc/rpcproxy.dll - FIRST_UP_PARENT/exchangeServer text/html


>From the cache.log of the squid:

2012/05/22 17:33:28| Starting Squid Cache version 3.1.19 for sparc-sun-solaris2.10...
2012/05/22 17:33:28| Process ID 7071
2012/05/22 17:33:28| With 256 file descriptors available
2012/05/22 17:33:28| Initializing IP Cache...
2012/05/22 17:33:28| DNS Socket created at [::], FD 8
2012/05/22 17:33:28| DNS Socket created at 0.0.0.0, FD 9
2012/05/22 17:33:28| Adding domain fifthandpacific.com from /etc/resolv.conf
2012/05/22 17:33:28| Adding nameserver 12.127.17.71 from /etc/resolv.conf
2012/05/22 17:33:28| Adding nameserver 12.127.16.67 from /etc/resolv.conf
2012/05/22 17:33:28| Adding nameserver 156.146.2.190 from /etc/resolv.conf
2012/05/22 17:33:28| Unlinkd pipe opened on FD 14
2012/05/22 17:33:28| Store logging disabled
2012/05/22 17:33:28| Swap maxSize 0 + 262144 KB, estimated 20164 objects
2012/05/22 17:33:28| Target number of buckets: 1008
2012/05/22 17:33:28| Using 8192 Store buckets
2012/05/22 17:33:28| Max Mem  size: 262144 KB
2012/05/22 17:33:28| Max Swap size: 0 KB
2012/05/22 17:33:28| Using Least Load store dir selection
2012/05/22 17:33:28| Current Directory is /opt/squid-3.1.19/var/logs
2012/05/22 17:33:28| Loaded Icons.
2012/05/22 17:33:28| Accepting HTTPS connections at 156.146.2.196:443, FD 15.
2012/05/22 17:33:28| HTCP Disabled.
2012/05/22 17:33:28| Configuring Parent 10.150.2.15/443/0
2012/05/22 17:33:28| Squid plugin modules loaded: 0
2012/05/22 17:33:28| Ready to serve requests.
2012/05/22 17:33:29| storeLateRelease: released 0 objects
-----BEGIN SSL SESSION PARAMETERS-----
MIGNAgEBAgIDAQQCAC8EIAj2TdmdLmNKL8/+V0D37suIYsli5OZLvCZu6u1+voNA
BDAy5uGQ23i/G+ozoVu/RDjm8yMq3zAJAWiXKz+U537Fd5uMDJeCmo30/cy9WPeF
6fmhBgIET7wIr6IEAgIBLKQCBACmGgQYd2VibWFpbC5qdWljeWNvdXR1cmUuY29t
-----END SSL SESSION PARAMETERS-----
-----BEGIN SSL SESSION PARAMETERS-----
MIGNAgEBAgIDAQQCAC8EILcgJcTbarlfw3jpifpmpBZQpBYheYouh2NZp9eoPJUy
BDBs6l+2LMOMI4D/RPQG3mOYbZ7OBcpanTJFaa8zCBV4s6AxtTpIFL2LnxRoJ0uB
I/WhBgIET7wIr6IEAgIBLKQCBACmGgQYd2VibWFpbC5qdWljeWNvdXR1cmUuY29t
-----END SSL SESSION PARAMETERS-----
2012/05/22 17:44:15| fwdNegotiateSSL: Error negotiating SSL connection on FD 13: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed (1/-1/0)
2012/05/22 17:44:15| TCP connection to 10.150.2.15/443 failed
2012/05/22 17:44:15| fwdNegotiateSSL: Error negotiating SSL connection on FD 13: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed (1/-1/0)

>From the packet capture, the internal Exchange server reset the connection from the squid proxy server by either "Alert (Level: Fatal, Description: Unknown CA)" when I used above official certificates or "Alert (Level: Fatal, Description: Certificate Unknown) when I used internal CA signed certificate after initial https handshaking between squid and exchange server through https connection. Can anyone tell me how do I correctly configure cache_peer statement to make it work? 


Thanks in advance.

Ryan Jiang




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