What means this error?

[Laurent BLIN <laurent.blin@iemm.univ-montp2.fr>]

Could someone explain me this error in SSL mode (on port 636) ? This 
seems to be an error in the SSL client connexion... (My client here is 
Samba 2.2.4).

 Thanks.
    Laurent


LDAP LOGS:
-------------------

ldap_pvt_gethostbyname_a: host=obiwan, r=0
connection_get(10): got connid=0
connection_read(10): checking for input on id=0
TLS trace: SSL_accept:before/accept initialization
TLS trace: SSL_accept:error in SSLv2/v3 read client hello A
TLS: can't accept.
TLS: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol
s23_srvr.c:634
connection_read(10): TLS accept error error=-1 id=0, closing
connection_closing: readying conn=0 sd=10 for close
connection_close: conn=0 sd=10
connection_get(10): got connid=1
connection_read(10): checking for input on id=1
TLS trace: SSL_accept:before/accept initialization
TLS trace: SSL_accept:error in SSLv2/v3 read client hello A
TLS: can't accept.
TLS: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol
s23_srvr.c:634
connection_read(10): TLS accept error error=-1 id=1, closing
connection_closing: readying conn=1 sd=10 for close
connection_close: conn=1 sd=10