Re: [389-users] SSL/TLS with a hardware load balancer

2011-06-10 Thread Angel Bosch Mora
- Missatge original -
> Has anyone engineered a design to run 389-ds servers behind a hardware
> load balancer like an f5 LTM? I've found this question presented
> before, but never answered.
> 
> a) the openldap-clients ldap module will query the first host/uri in
> the list until the port goes down
> b) the server can run out of file descriptors or memory and stop
> answering queries without closing the port
> c) pointing clients at a virtualized name on a hardware LB will
> present a name conflict. The SSL cert on the directory server must
> match the v-name on the LB to answer queries, but it must match the
> local hostname for replication agreements.
>


cd /etc/dirsrv/

certutil -R -s 
"CN=hostname,OU=example,O=example,L=example,ST=example,C=example" -o 
example.csr -d . -a -8 hostname.example.com,ldap.example.com,repl.another.one


this is the only step that can't be done through gui, the rest is in the 
official docs.



abosch
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[389-users] SSL/TLS with a hardware load balancer

2011-06-10 Thread Beamon, John
Has anyone engineered a design to run 389-ds servers behind a hardware load 
balancer like an f5 LTM?  I've found this question presented before, but never 
answered.

a) the openldap-clients ldap module will query the first host/uri in the list 
until the port goes down
b) the server can run out of file descriptors or memory and stop answering 
queries without closing the port
c) pointing clients at a virtualized name on a hardware LB will present a name 
conflict.  The SSL cert on the directory server must match the v-name on the LB 
to answer queries, but it must match the local hostname for replication 
agreements.

I have not found an example where someone has started a second, 
replication-only listener on the database or configured an LTM to accept 
multiple v-names...  This may be feasible with a robust SSL accelerator, but we 
don't have one on hand.


John Beamon



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