Recently, I looked into backing up ESX configuration because I needed to do a reinstall. I was just looking for a way to speed up the re-install process. We are using shared storage for the VMs so this isn't required.
What I found was two methods. I will be using them both and report back with the results on the recovery process.
I recently started working with Saltstack to build and manage some linux appliances I have been building for my company. I am by no means an expert. Just someone learning a new product.
I plan to document some of what I learn and probably a lot of mistakes I make. This is more for myself but figured it might come in handy for others. If you notice a mistake or a better way of handling something, just let me know.
In my home lab, I have several applications that send email. Most of them run on linux (CentOS or Ubuntu).
I found the following directions to setup Postfix. I started doing this on every box and realized I was being dumb. I just need to setup one relay server. I thought about setting up a services box for this and other functions but found a distro that does everything I wanted.
I installed Zentyal and configured the mail server to relay mail through my Gmail account. Then just point all my other applications/servers at this internal relay. Problem solved. Now on to getting everything to authenticate through ldap, etc.