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Hi there guys.

Well, I'm making some progress securing my ldap server by reading the list and the oficial how-to, but I'm facing a new problem.
So, I've created the certificates using this link.


Then in my slapd.conf I've got. (server side )

#security ssf=128 update_ssf=128 simple_bind=128

security ssf=1 update_ssf=112 simple_bind=64
TLSCACertificateFile /etc/ssl/cacert.pem
TLSCertificateFile /etc/ssl/servercrt.pem
TLSCertificateKeyFile /etc/ssl/serverkey.pem
TLSVerifyClient never

ldap.conf (server side )


BASE dc=netwarrior,dc=com
URI ldaps://linux:636
HOST linux:636

#BINDDN dc=netwarrior,dc=netwarrior

#DEREF never

TLS_CACERT /etc/ssl/cacert.pem

With this configuration everything seems to work fine, but now, what I want to do is to force my clients to use a certificate to connect,
so, if I did not misundestrand it wrong, the demand options is a must.

So, when I change TLSVerifyClient never to demand. I've get the following ( alway on my server )

linux:/etc/ssl # openssl s_client -connect localhost:636 -state -showcerts -CAfile cacert.pem
SSL_connect:before/connect initialization
SSL_connect:SSLv2/v3 write client hello A
SSL_connect:SSLv3 read server hello A
depth=1 /C=AU/ST=Some State/L=City/O=Internet Widgits Pty Ltd/OU=Section/CN=localhost/emailAddress= test@company.com
verify return:1
depth=0 /C=AU/ST=Some Even State/L=City/O=Internet Widgits Pty Ltd/OU=Section/CN=localhost/emailAddress=test@company.com
verify return:1
SSL_connect:SSLv3 read server certificate A
SSL_connect:SSLv3 read server certificate request A
SSL_connect:SSLv3 read server done A
SSL_connect:SSLv3 write client certificate A
SSL_connect:SSLv3 write client key exchange A
SSL_connect:SSLv3 write change cipher spec A
SSL_connect:SSLv3 write finished A
SSL_connect:SSLv3 flush data
SSL3 alert read:fatal:handshake failure
SSL_connect:failed in SSLv3 read finished A
6274:error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure:s3_pkt.c:1052:SSL alert number 40
6274:error:140790E5:SSL routines:SSL23_WRITE:ssl handshake failure:s23_lib.c:226:

Making some searches in the mailing list I found a guy who had the same problem, and he was told that with the
demand option we force slapd to ask for a client certificate, and that the client certificate is a must.
Well, now, I do not get it, cuz I'm authenticating against myself, with teh certificates I generated before,
maybe ai have to generate a separate pair of certificates, do not know.

With never, and always it works as suggested by someone in the list, who said that first we need try a lower option (never, allow )
to test if the server works ) my problem is with the demand option.

What am I mising here?
Sorry for my stupidity, I do not get it yet.

Thanks in advance and or your valuable time.