Rotinas SSL: ssl23_write: falha de handshake SSL: s23_lib.c: 177:

Question

Eu tenho um mestre openldap e 2 escravos openldap. Usando uma CA sem assinatura própria.

openldap master: name debian based on stretch
slapd 2.4.44+dfsg-5+d amd64
openssl 1.1.0f-3+deb9u1 amd64

openldap slave: name debian1 based on stretch
slapd 2.4.44+dfsg-5+d amd64
openssl 1.1.0f-3+deb9u1 amd64

openldap master: name ldap based o oracle linux 7.4
slapd 2.4.44-5.el7.x86_64
openssl-1.0.2k-8.0.1.el7.x86_64

O

openldap client baseado no oracle linux não pôde conectar-se ao master do ldap baseado na strech debian.

Coisas que eu tenho feito no slave debian e slave oracle linux:

root@debian1:~# openssl verify -CAfile /etc/ssl/contatogs.com.br/cacert.pem /etc/ssl/contatogs.com.br/newcerts/cn\=debian1\,ou\=computers\,dc\=contatogs\,dc\=com\,dc\=br.crt.pem 
/etc/ssl/contatogs.com.br/newcerts/cn=debian1,ou=computers,dc=contatogs,dc=com,dc=br.crt.pem: **OK**

[root@ldap ~]# openssl verify -CAfile /etc/openldap/cacerts/cacert.pem /etc/openldap/certs/cn\=ldap\,ou\=>
/etc/openldap/certs/cn=ldap,ou=computers,dc=contatogs,dc=com,dc=br.crt.pem: **OK**

até agora tudo bem 80)

Agora, possivelmente, problema no slave debian1:

root@debian1:~# openssl s_client -connect debian.contatogs.com.br:389 -CAfile /etc/ssl/contatogs.com.br/cac
ert.pem  -state 
CONNECTED(00000003)
SSL_connect:before SSL initialization
SSL_connect:SSLv3/TLS write client hello
**SSL_connect:error in SSLv3/TLS write client hello**
write:errno=0
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 0 bytes and written 176 bytes
Verification: OK
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
    Protocol  : TLSv1.2
    Cipher    : 0000
    Session-ID: 
    Session-ID-ctx: 
    Master-Key: 
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    Start Time: 1519415735
    Timeout   : 7200 (sec)
    Verify return code: 0 (ok)
    Extended master secret: no

Mas mestre / escravo com apenas debian / debian funciona apesar deste erro / aviso.

Agora o oracle linux não funciona de jeito nenhum ......

[root@ldap ~]# 
<contatogs.com.br:389 -CAfile /etc/openldap/cacerts/cacert.pem  -state
CONNECTED(00000003)
SSL_connect:before/connect initialization
SSL_connect:SSLv2/v3 write client hello A
139967037114272:error:140790E5:SSL routines:ssl23_write:ssl handshake failure:s23_lib.c:177:
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 0 bytes and written 289 bytes
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
    Protocol  : TLSv1.2
    Cipher    : 0000
    Session-ID: 
    Session-ID-ctx: 
    Master-Key: 
    Key-Arg   : None
   PSK identity: None
    PSK identity hint: None
    Start Time: 1519415876
    Timeout   : 300 (sec)
    Verify return code: 0 (ok)

Estou quase certo de que o problema é a CA, mas não sei corrigir ... 80)

Qualquer ajuda seria muito apreciada.

    

Answer 1

Oi para pesquisas futuras Eu encontrei a maneira correta de se livrar desse erro. Quando eu crio o certificado para escravo que criei usando a parte do cliente (cliente da Web TLS) e o correto é criar um certificado como servidor (servidor da Web TLS). O que me ajuda a descobrir esse erro foi outro post no serverfault com esse comando: openssl verify -special sslserver -CAfile cacert.pem ldaprov1.crt