[squid-users] reverse proxy Squid 4

[Vieri]

Hi,

Today I just migrated from Squid 3 to Squid 4, and I found that a reverse proxy that was working fine before is now failing. The client browser sees this message:

[No Error] (TLS code: SQUID_ERR_SSL_HANDSHAKE)
Handshake with SSL server failed: [No Error]

This is how I configured the backend:

cache_peer 10.215.144.16 parent 443 0 no-query originserver login=PASS ssl sslcert=/etc/ssl/MY-CA/certs/W1_cert.cer sslkey=/etc/ssl/MY-CA/certs/W1_key_nopassphrase.pem sslcafile=/etc/ssl/MY-CA/cacert.pem ssloptions=NO_SSLv3,NO_SSLv2,NO_TLSv1_2,NO_TLSv1_1 sslflags=DONT_VERIFY_PEER front-end-https=on name=MyServer

The NO_TLSv* options are because the backend server is an old Windows 2003 (which hasn't changed either).

How can I debug this?

Vieri