# How to License a Backup Server **URL:** \ **Category:** Ignition\ **Created:** [April 12, 2024, 2:49pm UTC](https://forum.inductiveautomation.com/t/how-to-license-a-backup-server/88741 "2024-04-12T14:49:57Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Alfred\_Thayer](https://avatars.discourse-cdn.com/v4/letter/a/ebca7d/32.png) [@Alfred\_Thayer](https://forum.inductiveautomation.com/u/Alfred_Thayer)\ **Post date:** [April 12, 2024, 2:49pm UTC](https://forum.inductiveautomation.com/t/how-to-license-a-backup-server/88741/1 "2024-04-12T14:49:57Z")
I have a customer that wants to have a duplicate server setup ready to run. How do I stall the license onto this backup server? ---
**Author:** ![andrews](https://avatars.discourse-cdn.com/v4/letter/a/898d66/32.png) [@andrews](https://forum.inductiveautomation.com/u/andrews)\ **Post date:** [April 12, 2024, 3:09pm UTC](https://forum.inductiveautomation.com/t/how-to-license-a-backup-server/88741/2 "2024-04-12T15:09:09Z")
Just like you install the license on the main server. The backup server will require its own license. I do believe the backup license is discounted and flagged to only work on backup server though. See this article on how to setup redundancy. > **[Ignition Redundancy | Ignition User Manual](https://www.docs.inductiveautomation.com/docs/8.1/platform/ignition-redundancy)** > > Ignition redundancy supports a 2-node system, meaning there are two copies of the Gateway running. One node is the Master Gateway and the other is the Backup Gateway or backup node. All projects, Gateway settings, etc., are shared between nodes. The... ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [April 12, 2024, 3:33pm UTC](https://forum.inductiveautomation.com/t/how-to-license-a-backup-server/88741/3 "2024-04-12T15:33:49Z")
If the intent is to have a complete duplicate server, not a live redundant pair, then using one license would require, at a minimum, a disk-level image copy (without replacing unique system identifiers). There might be other requirements. You should talk to IA sales engineering.