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Re: TLS QUESTION



Am Mon, 10 Mar 2014 16:55:04 -0400
schrieb "Borresen, John - 0442 - MITLL" <John.Borresen@ll.mit.edu>:

> Vielen Danke Dieter;
> 
> Originally my command to create the client.pem was:
> 
> grep -A 100 CERTIFICATE cacert.pem > client.pem
> 
> Then I scp'd that out to the clients.  That worked when doing SSL on
> port 636 (and not wild-card certificates), but it is not working now
> on TLS over 389 to mm-server1 and mm-server3 with wild-card certs.
> 
> The cacert.pem and client.pem is on each client.  
> 
> Doing further reading...the client.pem since it was built off the
> cacert.pem (the server certificate) it should work.  
> 
> Should I use the cacert.pem or the servercrt.pem to create the
> client.pem?

Test yourself
openssl verify -CAfile /path/to/ca client.pem servercert.pem
check for proper CN
openssl x509 -in servercert.pem -noout -text

-Dieter
> 
> 
> 
> -----Original Message-----
> From: Dieter KlÃnter [mailto:dieter@dkluenter.de] 
> Sent: Monday, March 10, 2014 2:41 PM
> To: Borresen, John - 0442 - MITLL
> Subject: Re: TLS QUESTION
> 
> Am Mon, 10 Mar 2014 13:33:53 -0400
> schrieb "Borresen, John - 0442 - MITLL" <John.Borresen@ll.mit.edu>:
> 
> > Thanks Dieter...
> > 
> > As I stated I saw Howard Chu's response to an individual in 2005
> > with a similar issue and he stated then, " For the slapd server you
> > use the corresponding TLSCACertificateFile directive. You must use
> > these configuration directives if you want to accept a self-signed
> > cert."
> > 
> > I did add the olcTLSCACertificateFile attribute (just forgot to
> > list it in my original post).  Was not certain at the time if the 
> > "olcTLSCertificateFile" should be removed so I did not remove it.
> > So, before I do remove it, the attribute should be 
> > "olcTLSCACertificateFile" instead of "olcTLSCertificateFile" (and
> > this should be removed), correct?
> > 
> > The CA directories on all three servers look like this:
> > 
> > # ll
> > total 28
> > lrwxrwxrwx 1 root root   10 Jan 24 11:44 600f07a1.0 -> cacert.pem
> > --> client hash -rw-r--r-- 1 ldap ldap 5136 Jan 17 12:15 cacert.pem
> > --> Self-signed certificate -rw-r--r-- 1 ldap ldap 1090 Jan 17
> > 12:07 cert.csr  --> Certificate Signing Request -rw-r--r-- 1 ldap
> > ldap 1757 Jan 17 12:23 client.pem --> Client Certificate PEM
> > -rw-r--r-- 1 ldap ldap    0 Jan 14 16:20 index.txt drwxr-xr-x 2
> > ldap ldap 4096 Jan 14 16:18 newcerts (empty) drwxr-xr-x 2 ldap ldap
> > 4096 Jan 17 12:06 private  --> server private key directory
> > (cakey.pem) -rw-r--r-- 1 ldap ldap    3 Jan 17 11:59 serial 
> > This may sound like a dumb question...
> > 
> > I created the client.pem from the cacert.pem (as indicated on
> > openssl.org) then copied that to each client.  Is there a step I 
> > missed in there?
> 
> Yes, you have to create a client certificate for each host, while the
> Common Name must match the FQDN of this host. my blog entry may be of
> help:
> 
> https://sys4.de/de/blog/2013/08/20/how-create-and-administer-x509-certificate-chains-part-i
> 
> -Dieter
> 
> > If so, where?
> > 
> > Thanks in advance
> > 
> > John
> > -----Original Message-----
> > From: openldap-technical-bounces@OpenLDAP.org
> > [mailto:openldap-technical-bounces@OpenLDAP.org] On Behalf Of
> > Dieter KlÃnter Sent: Monday, March 10, 2014 12:58 PM To:
> > openldap-technical@openldap.org Subject: Re: TLS QUESTION
> > 
> > Am Mon, 10 Mar 2014 11:18:14 -0400
> > schrieb "Borresen, John - 0442 - MITLL" <John.Borresen@ll.mit.edu>:
> > 
> > > All,
> > > 
> > >  
> > > 
> > > My set up consists of three servers each syncing with each other.
> > > The host names are:
> > > 
> > > 1)      mm-server1.example.ldap
> > > 
> > > 2)      mm-server2.example.ldap
> > > 
> > > 3)      mm-server3.example.ldap
> > > 
> > >  
> > > 
> > > Utilizing TLSv1, on all three I have:
> > > 
> > > olcTLSCertificateFile: 
> > > /usr/local/openldap/etc/openldap/CA/cacert.pem
> > 
> > this should be opcTLSCAcertificateFile
> > 
> > > 
> > > olcTLSCertificateKeyFile:
> > > /usr/local/openldap/etc/openldap/CA/private/cakey.pem
> > 
> > you are misssing the host certificate, something like 
> > olcTLSCertificateFile /usr/local/openldap/etc/openldap/CA/host.pem
> > 
> > > 
> > > olcTLSCipherSuite: HIGH:MEDIUM+TLSv1+SSLv3
> > > 
> > >  
> > > 
> > > Configured with self-signed wild-card certs, originally
> > > configured (using openssl 0.9.8) on mm-server2 and exported to
> > > the other servers.
> > > 
> > >  
> > > 
> > > When running ldapmodify, ldapsearch, etc with a "-Z", and openssl 
> > > s_client on mm-server1 or mm-server3 or any client pointing back
> > > to mm-server1 or 3, I receive the following error:
> > > 
> > >  
> > > 
> > > TLS certificate verification: Error, self signed certificate
> > > 
> > > TLS: can't connect: error:14090086:SSL 
> > > routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
> > > (self signed certificate).
> > > 
> > > ldap_start_tls: Connect error (-11)
> > > 
> > >         additional info: error:14090086:SSL 
> > > routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
> > > (self signed certificate)
> > > 
> > >  
> > > 
> > > Running any of those to mm-server2, it works with no such error.
> > > 
> > >  
> > > 
> > > I am guessing, that since the certs were created on mm-server2, 
> > > originally, that is why it works this way.  Also, guessing I
> > > missed a step somewhere.
> > > 
> > >  
> > > 
> > > I read online a post from 2005 with a good explanation of 
> > > self-signed from Howard Chu about a similar problem.
> > > 
> > >  
> > > 
> > > What is the best procedure for creating wild-card certs and
> > > sharing those out to other servers?  The procedure that was used
> > > was from openssl.org so it was not a fly-by-night weblog.
> > > 
> > >  
> > > 
> > > What did I miss (besides: a lot)?
> > > 
> > >  
> > > 
> > > Thanks in advance,
> > > 
> > >  
> > > 
> > >  
> > > 
> > > John D. Borresen (Dave)
> > > 
> > > Linux/Unix Systems Administrator
> > > 
> > > MIT  Lincoln Laboratory
> > > 
> > > Surveillance Systems Group
> > > 
> > > 244 Wood St
> > > 
> > > Lexington, MA  02420
> > > 
> > > Ph: (781) 981-1609
> > > 
> > > Email: john.borresen@ll.mit.edu
> > > 
> > >  
> > > 
> > 
> > 
> > 
> > --
> > Dieter KlÃnter | Systemberatung
> > http://sys4.de
> > GPG Key ID: E9ED159B
> > 53Â37'09,95"N
> > 10Â08'02,42"E
> > 
> 
> 
> 
> --
> Dieter KlÃnter | Systemberatung
> http://sys4.de
> GPG Key ID: E9ED159B
> 53Â37'09,95"N
> 10Â08'02,42"E



-- 
Dieter KlÃnter | Systemberatung
http://sys4.de
GPG Key ID: E9ED159B
53Â37'09,95"N
10Â08'02,42"E