我需要使用startTLS和OpenLDAP客户端连接ApacheDS数据库。 我的ldaprc文件包含：
URI ldap://127.0.0.1:7323 ldaps://127.0.0.1:7423 SSL start_tls SASL_MECH plain TLSCipherSuite HIGH:MEDIUM:+TLSv1:!SSLv2:+SSLv3 TLS_REQCERT allow 我用过的命令是：
ldapsearch -H ldap://localhost:7323 -D "uid=admin,ou=system" -w secret -Z -d1
我已经检查过，我的服务器正在侦听这些端口，我可以连接其他客户端（例如ldapbrowser，jxplorer），但是使用OpenLdap的testing失败：
…
ldap_connect_to_host: Trying 127.0.0.1:7323 ldap_pvt_connect: fd: 3 tm: -1 async: 0 ldap_open_defconn: successful ldap_send_server_request ber_scanf fmt ({it) ber: ber_scanf fmt ({) ber: ber_flush2: 31 bytes to sd 3 ldap_result ld 0x7f81d95282a0 msgid 1 wait4msg ld 0x7f81d95282a0 msgid 1 (infinite timeout) wait4msg continue ld 0x7f81d95282a0 msgid 1 all 1 ** ld 0x7f81d95282a0 Connections: * host: 127.0.0.1 port: 7323 (default) refcnt: 2 status: Connected last used: Tue Dec 8 09:51:45 2015 ** ld 0x7f81d95282a0 Outstanding Requests: * msgid 1, origid 1, status InProgress outstanding referrals 0, parent count 0 ld 0x7f81d95282a0 request count 1 (abandoned 0) ** ld 0x7f81d95282a0 Response Queue: Empty ld 0x7f81d95282a0 response count 0 ldap_chkResponseList ld 0x7f81d95282a0 msgid 1 all 1 ldap_chkResponseList returns ld 0x7f81d95282a0 NULL ldap_int_select read1msg: ld 0x7f81d95282a0 msgid 1 all 1 ber_get_next ber_get_next: tag 0x30 len 38 contents: read1msg: ld 0x7f81d95282a0 msgid 1 message type extended-result ber_scanf fmt ({eAA) ber: read1msg: ld 0x7f81d95282a0 0 new referrals read1msg: mark request completed, ld 0x7f81d95282a0 msgid 1 request done: ld 0x7f81d95282a0 msgid 1 res_errno: 0, res_error: <>, res_matched: <> ldap_free_request (origid 1, msgid 1) ldap_parse_extended_result ber_scanf fmt ({eAA) ber: ber_scanf fmt (a) ber: ber_scanf fmt (O) ber: ldap_parse_result ber_scanf fmt ({iAA) ber: ber_scanf fmt (x) ber: ber_scanf fmt (x) ber: ber_scanf fmt (}) ber: ldap_msgfree TLS trace: SSL_connect:before/connect initialization TLS trace: SSL_connect:SSLv2/v3 write client hello A TLS trace: SSL3 alert read:fatal:unexpected_message TLS trace: SSL_connect:error in SSLv2/v3 read server hello A TLS: can't connect: error:140773F2:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert unexpected message. ldap_err2string ldap_start_tls: Connect error (-11) additional info: error:140773F2:SSLroutines:SSL23_GET_SERVER_HELLO:sslv3 alert unexpected message
任何想法我做错了什么或我错过了什么？
编辑：当你问我我使用-ZZ选项，我得到了什么：
ldapsearch -H ldap://localhost:7323 -D "uid=admin,ou=system" -w secret -ZZ -d1 ldap_url_parse_ext(ldap://localhost:7323) ldap_create ldap_url_parse_ext(ldap://localhost:7323/??base) ldap_extended_operation_s ldap_extended_operation ldap_send_initial_request ldap_new_connection 1 1 0 ldap_int_open_connection ldap_connect_to_host: TCP localhost:7323 ldap_new_socket: 3 ldap_prepare_socket: 3 ldap_connect_to_host: Trying 127.0.0.1:7323 ldap_pvt_connect: fd: 3 tm: -1 async: 0 ldap_open_defconn: successful ldap_send_server_request ber_scanf fmt ({it) ber: ber_scanf fmt ({) ber: ber_flush2: 31 bytes to sd 3 ldap_result ld 0x7ff278d7e2a0 msgid 1 wait4msg ld 0x7ff278d7e2a0 msgid 1 (infinite timeout) wait4msg continue ld 0x7ff278d7e2a0 msgid 1 all 1 ** ld 0x7ff278d7e2a0 Connections: * host: localhost port: 7323 (default) refcnt: 2 status: Connected last used: Mon Dec 14 08:48:04 2015 ** ld 0x7ff278d7e2a0 Outstanding Requests: * msgid 1, origid 1, status InProgress outstanding referrals 0, parent count 0 ld 0x7ff278d7e2a0 request count 1 (abandoned 0) ** ld 0x7ff278d7e2a0 Response Queue: Empty ld 0x7ff278d7e2a0 response count 0 ldap_chkResponseList ld 0x7ff278d7e2a0 msgid 1 all 1 ldap_chkResponseList returns ld 0x7ff278d7e2a0 NULL ldap_int_select read1msg: ld 0x7ff278d7e2a0 msgid 1 all 1 ber_get_next ber_get_next: tag 0x30 len 38 contents: read1msg: ld 0x7ff278d7e2a0 msgid 1 message type extended-result ber_scanf fmt ({eAA) ber: read1msg: ld 0x7ff278d7e2a0 0 new referrals read1msg: mark request completed, ld 0x7ff278d7e2a0 msgid 1 request done: ld 0x7ff278d7e2a0 msgid 1 res_errno: 0, res_error: <>, res_matched: <> ldap_free_request (origid 1, msgid 1) ldap_parse_extended_result ber_scanf fmt ({eAA) ber: ber_scanf fmt (a) ber: ber_scanf fmt (O) ber: ldap_parse_result ber_scanf fmt ({iAA) ber: ber_scanf fmt (x) ber: ber_scanf fmt (x) ber: ber_scanf fmt (}) ber: ldap_msgfree<br/>TLS trace: SSL_connect:before/connect initialization TLS trace: SSL_connect:SSLv2/v3 write client hello A<br/> TLS trace: SSL3 alert read:fatal:unexpected_message TLS trace: SSL_connect:error in SSLv2/v3 read server hello A TLS: can't connect: error:140773F2:SSL routines:SSL23_GET_SERVER_HELLO:sslv# alert unexpected message. ldap_err2string ldap_start_tls: Connect error (-11) additional info: error:140773F2:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert unexpected message
我发现ApacheDS不支持SSLv2，默认情况下与Java 1.7相同。 所以我通过添加最小版本的协议来closuresOpenLDAP中的SSLv2： TLS_PROTOCOL_MIN 3.3 。 这是我的解决方法。