When I connect to specific server using specific CA and cert, I can use -CApath, -CAfile, -cert option of the s_client program. Howerver when connectiong to the various servers, We can not determine what CAs the server trusts before receiving "certificate request" message the server sends. Therefore I suspect the s_client might not connect to the diverse servers properly. Is there any method to let s_client program configure and use the multiple CAs and the multiple certificates and select the appropriate CA and certificate according to the CA the server trusts? I would be very thankful if U help me. Thank U in advance. ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]