Re: problem with SSL and load balance

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You must have one certificate for each server, the problem here is the DNS
RR.

I don't like DNS load balancing because it cannot detect service failures,
for example, you have in your client configuration files:

URI             ldap://fds.mydomain.com

This works fine if both servers are up, but if one server goes down, some
clients won't be able to contact the LDAP server ramdomly.

It would be better to configure both ldap servers in the client
configuration files, and place in different order, or configure a LVS.

Cheers.




                                                                           
                                                                           
                                                                           
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       03/10/2007 11:20 a.m.               problem 
                                          with SSL and load balance        
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Hello List,

I have the same problem that Alex Aka in Apr 2006
http://www.redhat.com/archives/fedora-directory-users/2006-April/msg00022.html


I have two FDS (fds1 and fds2) in MMR

in the DNS I create this machines

fds1     IN     A     10.0.0.11
fds2     IN     A     10.0.0.12
fds      IN     A     10.0.0.11
fds      IN     A     10.0.0.12

in the clients, I configure the ldap.conf with this parameters:

BASE            dc=mydomain,dc=com
URI             ldap://fds.mydomain.com

this configuration work very,very fine !!!! exist replication between
servers and fault tolerance in the clients.. but i enable SSL in
server and in the clients (ldap.conf)


BASE            dc=mydomain,dc=com
URI             ldaps://fds.mydomain.com
TLS_CACERT      /etc/ssl/certs/cacert.org.pem
TLS_REQCERT     allow

and "no" work !!! :-( i receive this error:

ldap_bind: Can't contact LDAP server (-1)

additional info: TLS: hostname does not match CN in peer certificate

this problem, is derivate that i configured the servers with one
certificate and distinct CN for independent serves (fds1 and fds2)...

if I config one same certificate with same CN (fds) for both nodes
(fds1 and fds2).. work fine in the clients, but the replication dont
work !!! :-(

obs.: my certificates is sign in http://cacert.org

any idea or suggestion ???

thanks


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Victor Hugo dos Santos
Linux Counter #224399

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