# Enterprise Administration Module and Scale out Architecture

**URL:** <https://forum.inductiveautomation.com/t/enterprise-administration-module-and-scale-out-architecture/69595>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [February 8, 2023, 7:05pm UTC](https://forum.inductiveautomation.com/t/enterprise-administration-module-and-scale-out-architecture/69595 "2023-02-08T19:05:17Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![apimente](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/apimente/32/4030_2.png) [@apimente](https://forum.inductiveautomation.com/u/apimente)\
**Post date:** [February 8, 2023, 7:05pm UTC](https://forum.inductiveautomation.com/t/enterprise-administration-module-and-scale-out-architecture/69595/1 "2023-02-08T19:05:17Z")

</div>

Hi Guys,

We're evaluating using the "Enterprise Administration Module" in a scale-out architecture (1 front end and 2 back end). How many modules do we need? The especification says 1 per gateway, but i don't know if the back end it's part of this consideration.

I really appreciate your help.

Regards

---

<div class="post-metadata">

**Author:** ![brian.mcenulty](https://avatars.discourse-cdn.com/v4/letter/b/b77776/32.png) [@brian.mcenulty](https://forum.inductiveautomation.com/u/brian.mcenulty)\
**Post date:** [February 8, 2023, 7:32pm UTC](https://forum.inductiveautomation.com/t/enterprise-administration-module-and-scale-out-architecture/69595/2 "2023-02-08T19:32:43Z")

</div>

It's 1 per gateway, regardless of the gateway's function in the overall system.

---

<div class="post-metadata">

**Author:** ![martinel3746](https://avatars.discourse-cdn.com/v4/letter/m/e0b2c6/32.png) [@martinel3746](https://forum.inductiveautomation.com/u/martinel3746)\
**Post date:** [February 9, 2023, 2:10am UTC](https://forum.inductiveautomation.com/t/enterprise-administration-module-and-scale-out-architecture/69595/3 "2023-02-09T02:10:16Z")

</div>

You need one gateway to act as the "Controller".  
All other gateways will be "Agents".  
We actually have three regional Controllers (Asia, Europe, Americas).  
In our environment, we found it best to configure the Gateway Network connections from all of the Agents as Outbound to the Controller and have the Controller approve all Incoming requests rather than the other way around.  
For your research, take a look at [EAM Ideas](https://ideas.inductiveautomation.com/search?search=EAM) to see what features other EAM users want to be added.