Re: Need Help On Master-Master Replication Setup!!

The three servers in the LB pool can share one certificate. When you create the CSR for the certificate, you can specify ldapserver1, ldapserver2 & ldapserver3 for the subjectAltName field. Google with "subjectAltName" you should be able to find a lot of information how to do that.

On 11-09-11 2:48 PM, pradyumna dash wrote:

Guys,

Please suggest !!

Regards, Neo

On Fri, Sep 9, 2011 at 11:15 PM, pradyumna dash <neomatrixgem@gmail.com mailto:neomatrixgem@gmail.com> wrote:

Hi,

This is the setup I would like to have.

                   LDAP clients
    _____________|___________________

  | __________LoadBalancer1_________  |

                |                 |               |
        ldapserver1  ldapserver2  ldapserver3

  My challange is I never did this kind of architecture before, So would like to know from LB prosepctive, How to configure  it like
  say i have to create a DNS FQDN e.g "ldapserver.example.com  <http://ldapserver.example.com>" and then use this as a floating IP/hostname for the 3 ldapservers


  in the backend? or whats should be done? The network team will do the setup but i need to tell them what to do.  My next question
  would be i would like to configure LDAPS, so how to create the certificate i mean what to provide in common name or how to create a


  certificate which can be shared across the servers, am using "openssl" ? I am using SLES 11(SP1) and the setup wiould be a Multi-Master
  replication.


   Please help.

  Regards,
  Neo


On Fri, Sep 9, 2011 at 8:14 PM, pradyumna dash
<neomatrixgem@gmail.com <mailto:neomatrixgem@gmail.com>> wrote:

    Hi,

    Thanks for the suggestion, but i never did it before , if you
    can share a doc or something would be great.

    I use the openssl to generate the certificate, so even i dont
    know how to configure subjectAltNames. Also if you can explain
    a bit how i should i proceed would be appreciated.

    Example : ldap1.example.com <http://ldap1.example.com>
    ldap2.example.com <http://ldap2.example.com>

    So in the load balancer what to configure and how to create
    the certificate.

    Please help.

    Regards,
    Pradyumna


    On Fri, Sep 9, 2011 at 7:35 PM, Quanah Gibson-Mount
    <quanah@zimbra.com <mailto:quanah@zimbra.com>> wrote:

        --On Thursday, September 08, 2011 10:17 PM +0200 pradyumna
        dash <neomatrixgem@gmail.com
        <mailto:neomatrixgem@gmail.com>> wrote:

            Hi,


            I would like to setup OpenLDAP Mater-Master
            replication, before that i
            would like to know something more about it, because i
            never implemented the same.


            Suppose i have 2 servers ldap1.example.com
            <http://ldap1.example.com> and ldap2.example.com
            <http://ldap2.example.com>


            I will configure M-M replication with LDAPS, in this
            scenario how my
            architecture should be? Do i need to keep it behind
            the loadbalancer or
            what are the steps to do it?
            How come the client will come to know if any of the
            server is down, it
            will talk to the other server, because in my ldap.conf
            file i will have a
            single URI/host entry
            pointing to one of the server and also how to create
            the certificate, do
            i need 2 individiual certificate 1 for ldap1 and 1 for
            ldap2?


        I would suggest a cert for ldap1 and ldap2, both with
        having subjectAltNames for a load balanced name too, so
        clients can work directly to the servers and directly with
        the LB name.

        --Quanah


        --

        Quanah Gibson-Mount
        Sr. Member of Technical Staff
        Zimbra, Inc
        A Division of VMware, Inc.
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