# OPCUA server : Support for global discovery server?

**URL:** <https://forum.inductiveautomation.com/t/opcua-server-support-for-global-discovery-server/69880>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [February 15, 2023, 10:08am UTC](https://forum.inductiveautomation.com/t/opcua-server-support-for-global-discovery-server/69880 "2023-02-15T10:08:32Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![mazeyrat](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mazeyrat/32/10955_2.png) [@mazeyrat](https://forum.inductiveautomation.com/u/mazeyrat)\
**Post date:** [February 15, 2023, 10:08am UTC](https://forum.inductiveautomation.com/t/opcua-server-support-for-global-discovery-server/69880/1 "2023-02-15T10:08:32Z")

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Hi @Kevin.Herron,  
Is there some plan for Ignition OPC-UA Server to support GDS **"OPCUA - global discovery server"**?

[https://reference.opcfoundation.org/v104/GDS/docs/](https://reference.opcfoundation.org/v104/GDS/docs/)

[https://documentation.unified-automation.com/uasdkhp/1.1.1/html/\_l2\_ua\_discovery\_connect.html](https://documentation.unified-automation.com/uasdkhp/1.1.1/html/_l2_ua_discovery_connect.html)

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [February 15, 2023, 2:19pm UTC](https://forum.inductiveautomation.com/t/opcua-server-support-for-global-discovery-server/69880/2 "2023-02-15T14:19:51Z")

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Possibly after OPC UA 1.05 support is done.

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [February 15, 2023, 2:20pm UTC](https://forum.inductiveautomation.com/t/opcua-server-support-for-global-discovery-server/69880/3 "2023-02-15T14:20:52Z")

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To be clear, we’d be adding support for registering with a GDS, not acting as a GDS.

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**Author:** ![gnguyen](https://avatars.discourse-cdn.com/v4/letter/g/41988e/32.png) [@gnguyen](https://forum.inductiveautomation.com/u/gnguyen)\
**Post date:** [May 19, 2025, 4:49am UTC](https://forum.inductiveautomation.com/t/opcua-server-support-for-global-discovery-server/69880/4 "2025-05-19T04:49:35Z")

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Hi @Kevin.Herron,

Still in the roadmap for 1.05? With 8.3.0 or later?

BR,

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**Author:** ![David\_Stone](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/david_stone/32/79749_2.png) [@David\_Stone](https://forum.inductiveautomation.com/u/David_Stone)\
**Post date:** [May 19, 2025, 5:43am UTC](https://forum.inductiveautomation.com/t/opcua-server-support-for-global-discovery-server/69880/5 "2025-05-19T05:43:12Z")

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Milo 1.0.0 is out, so that targets OPCUA 1.05, it will be interesting to see when that is update in Ignition itself.

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [May 19, 2025, 12:32pm UTC](https://forum.inductiveautomation.com/t/opcua-server-support-for-global-discovery-server/69880/6 "2025-05-19T12:32:25Z")

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> [@gnguyen](#):
>
> With 8.3.0 or later?

Yeah, it should be in the beta... I'll put the PR up for it today. There's an advanced setting on the server config that, when enabled, allows a GDS server to manage the Ignition OPC UA server certificate and trust list. All you have to do is enable this setting and configure a user that has the "SecurityAdmin" role. The rest is up to the GDS.

> [@David\_Stone](#):
>
> it will be interesting to see when that is update in Ignition itself.

There shouldn't be a ton of _visible_ changes.

Support for the DataTypeDefinition attribute is a big deal.

There should also be a full mapping of all OPC UA built-in datatypes, structures, corner cases with Variant and ExtensionObject etc... to Ignition types. Many of the types that didn't map to the obvious corresponding Ignition type just didn't work or were toString() values before.

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**Author:** ![Andre\_Hennecke](https://avatars.discourse-cdn.com/v4/letter/a/e95f7d/32.png) [@Andre\_Hennecke](https://forum.inductiveautomation.com/u/Andre_Hennecke)\
**Post date:** [January 6, 2026, 8:16am UTC](https://forum.inductiveautomation.com/t/opcua-server-support-for-global-discovery-server/69880/7 "2026-01-06T08:16:40Z")

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Hi, are there any more details for GDS support. I wasn’t able to find anything in the documentation and also not in the advanced settings.

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [January 6, 2026, 2:05pm UTC](https://forum.inductiveautomation.com/t/opcua-server-support-for-global-discovery-server/69880/8 "2026-01-06T14:05:14Z")

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Hmm, well the config setting exists on the backend, but it doesn't exist in the UI right now it seems 🙂

I'll see about getting that fixed.

You could modify the config file on disk and set `advanced.gdsPushEnabled` to `true` in the server's config.json.

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**Author:** ![cross](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/cross/32/76508_2.png) [@cross](https://forum.inductiveautomation.com/u/cross)\
**Post date:** [April 21, 2026, 5:43pm UTC](https://forum.inductiveautomation.com/t/opcua-server-support-for-global-discovery-server/69880/9 "2026-04-21T17:43:53Z")

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This has been addressed in Ignition version 8.3.5!
