I’d like not to take up two ip addresses per host indefinitely. We have re-IP’d our hosts
before so I know we can to do this but it was during a downtime when everything was
restarted. Just trying to get away with not restarting the masters.
Deborah Crocker, PhD
Systems Engineer III
Office of Information Technology
The University of Alabama
Box 870346
Tuscaloosa, AL 36587
Office 205-348-3758 | Fax 205-348-9393
deborah.crocker@ua.edu<mailto:deborah.crocker@ua.edu>
From: Leo Pleiman <lpleiman(a)salsalabs.com>
Sent: Tuesday, May 26, 2020 3:08 PM
To: General discussion list for the 389 Directory server project.
<389-users(a)lists.fedoraproject.org>
Subject: [EXTERNAL] [389-users] Re: Advice to bring new servers into production
My experience has been that the replicas and consumers have a unique id, more than just an
IP address which creates the trust relationship with the master. If your goal is to simply
maintain an IP so your clients don't have to be repointed, I would build each new LDAP
host and replication agreement, and then as you decommission the old hosts use their IP
address as a virtual IP address on the replacement host. It would take a quick restart od
the LDAP service to start a listener on the virtual Ip address.
Leo Pleiman
Senior System Engineer
Direct 202-787-3622
Cell 410-688-3873
[
https://docs.google.com/uc?export=download&id=0B5yMFvgldunoLUhna3pDUn...]
On Tue, May 26, 2020 at 3:57 PM Crocker, Deborah
<crock@ua.edu<mailto:crock@ua.edu>> wrote:
We have a setup with 2 multi-masters and 3 consumers. We are now building new host and
want to put them in place ultimately at the same IP address as the original ones. I need
some advice on how to do this quickly and cleanly.
To add a new consumer the idea now is to set it up and set up replications agreements from
each master using consumer DNS name (don't start continuous replication yet). After
initializing new consumer from one master - turn off old consumer, remove old consumer
agreement from each master, and re-IP new consumer. Do we need to restart masters to
re-read DNS or will it pick that up when it starts the next replication? Is this the best
way to do this?
Thanks
Deborah Crocker, PhD
Systems Engineer III
Office of Information Technology
The University of Alabama
Box 870346
Tuscaloosa, AL 36587
Office 205-348-3758 | Fax 205-348-9393
deborah.crocker@ua.edu<mailto:deborah.crocker@ua.edu>
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