Harry Jede a écrit :
Am Sonntag, 25. Januar 2009 19:05 schrieb Technical Home:
Hello,
I now try to add SSL/TLS support to my OpenLDAP server 2.4.11 .
So I create a CA and a signed certificate by this CA. This point
seems to be ok :
---------------------------------------------------------------------
----------------------------------------------------------------------
----------- r...@server:~# openssl verify -CAfile
/etc/ssl/certs/cacert.pem /etc/ssl/certs/SERVER.crt
/etc/ssl/certs/SERVER.crt: OK
---------------------------------------------------------------------
----------------------------------------------------------------------
-----------
And i add it to my slapd configuration with following commands as
specified in the ubuntu documentation
(https://help.ubuntu.com/8.10/serverguide/C/openldap-server.html#open
ldap-configuration)
---------------------------------------------------------------------
----------------------------------------------------------------------
----------- r...@server:~# ldapmodify -x -D cn=admin,cn=config -W
Enter LDAP Password:
dn: cn=config
add: olcTLSCACertificateFile
olcTLSCACertificateFile: /etc/ssl/certs/cacert.pem
-
add: olcTLSCertificateFile
olcTLSCertificateFile: /etc/ssl/certs/SERVER.crt
-
add: olcTLSCertificateKeyFile
olcTLSCertificateKeyFile: /etc/ssl/private/cakey.pem
modifying entry "cn=config"
---------------------------------------------------------------------
----------------------------------------------------------------------
-----------
But when restarting slapd, I always obtain this output :
---------------------------------------------------------------------
----------------------------------------------------------------------
----------- r...@server:~# slapd -h 'ldap://127.0.0.1:389
ldaps://192.168.1.200:636' -g openldap -u openldap -F
/etc/ldap/slapd.d/ -d 16383
@(#) $OpenLDAP: slapd 2.4.11 (Oct 24 2008 23:44:05) $
bui...@palmer:/build/buildd/openldap-2.4.11/debian/build/servers/slap
d main: TLS init def ctx failed: -207
slapd stopped.
connections_destroy: nothing to destroy.
---------------------------------------------------------------------
----------------------------------------------------------------------
-----------
I search all my sunday long what could be this "main: TLS init def
ctx failed: -207" but I was not able to find what causes it. In
openssl file ssl.h, 207 code refers to the macro "#define
SSL_F_SSL_VERIFY_CERT_CHAIN 207". It seems to
mean that it (slapd or openssl ?) can't verify my certificate string,
but I just verified before my certificate with the openssl command
which told it is OK. I'm lost. Can you help me ?
May be,
try
ldd $(which slapd)
you may see, that slapd is build with gnutls and not openssl :-)
You have two different solutions to fix this:
1. use the tool certtool from gnutls in package gnutls-bin. doc is in
gnutls-doc or use the doc from the qemu/kvm packages and look their for
vnc.
2. create a copy of /etc/ssl/certs/cacert.pem and reorder your
certificates. gnutls expects just the opposite order as openssl :-(
Thanks in advance,
Regards,
Gilles
Thanks again Harry ! You are right, I followed gnutls.pdf documentation
and this link :
http://www.linuxsecurityforum.org/f5/how-to-create-a-certificate-authority-and-gnutls-t100.html
And here we go ^^ :
----------------------------------------------------------------------------------------------------------------
r...@server:~# /etc/init.d/slapd restart
Stopping OpenLDAP: slapd.
Starting OpenLDAP: slapd.
r...@server:~# nmap localhost
Starting Nmap 4.62 ( http://nmap.org ) at 2009-01-28 00:05 CET
Warning: Hostname localhost resolves to 2 IPs. Using 127.0.0.1.
Interesting ports on localhost (127.0.0.1):
Not shown: 1711 closed ports
PORT STATE SERVICE
22/tcp open ssh
139/tcp open netbios-ssn
389/tcp open ldap
445/tcp open microsoft-ds
Nmap done: 1 IP address (1 host up) scanned in 0.205 seconds
r...@server:~# nmap 192.168.1.200
Starting Nmap 4.62 ( http://nmap.org ) at 2009-01-28 00:05 CET
Interesting ports on 192.168.1.200:
Not shown: 1711 closed ports
PORT STATE SERVICE
22/tcp open ssh
139/tcp open netbios-ssn
445/tcp open microsoft-ds
636/tcp open ldapssl
Nmap done: 1 IP address (1 host up) scanned in 0.203 seconds
----------------------------------------------------------------------------------------------------------------
But is gnutls using new in OpenLDAP ? Hard to find this by Google.
Ubuntu documentation refers to openssl despite the documentation update
for ubuntu 8.10 intrepid version :
https://help.ubuntu.com/8.10/serverguide/C/openldap-server.html#openldap-configuration
But thanks again Harry, now I will sleep better I think.
U won a virtual french beer ! ^^
Bye
Gilles
