# Browsing historical data on a remote tag provider **URL:** \ **Category:** Ignition\ **Tags:** ignition81, perspective\ **Created:** [April 2, 2024, 7:25am UTC](https://forum.inductiveautomation.com/t/browsing-historical-data-on-a-remote-tag-provider/88197 "2024-04-02T07:25:08Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![joshdunstan](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/joshdunstan/32/43306_2.png) [@joshdunstan](https://forum.inductiveautomation.com/u/joshdunstan)\ **Post date:** [April 2, 2024, 7:25am UTC](https://forum.inductiveautomation.com/t/browsing-historical-data-on-a-remote-tag-provider/88197/1 "2024-04-02T07:25:08Z")
Wondering if I'm just completely missing something here.. I'm having trouble setting up access to the tag history from our front end server. Front end: - Platform - Alarm Notification - OPCUA - Perspective - Reporting - Twilio - Webdev Back end: - Platform - Tag Historian I have them both connected via the GAN, service security on the back end allows the reading of tags. I have a remote tag provider set up on my front end, connecting to the single tag provider on my back end server. I have the remote tag provider set up to access tag history via 'database' mode, with the applicable configuration entered (below). ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/0/e0787c0ccd4e40f4fc99d2f6877cb4321b112f1a.png) However, I can not browse any of the historical tags, they do not appear in the power chart, and I can not subscribe to them with a manually constructed historical path. [8.1-rc2 Cannot pull tag history over gateway network - Ignition Early Access - Inductive Automation Forum](https://forum.inductiveautomation.com/t/8-1-rc2-cannot-pull-tag-history-over-gateway-network/39235/6) The above forum post would lead me to believe that I need to have the tag historian module installed and licensed on both gateways? Otherwise is there anyone here that can help with this please? ---
**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 2, 2024, 10:43am UTC](https://forum.inductiveautomation.com/t/browsing-historical-data-on-a-remote-tag-provider/88197/2 "2024-04-02T10:43:09Z")
I'm pretty sure you need the historian module on both front and back ends. ---
**Author:** ![bschroeder](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/bschroeder/32/13260_2.png) [@bschroeder](https://forum.inductiveautomation.com/u/bschroeder)\ **Post date:** [April 2, 2024, 11:29am UTC](https://forum.inductiveautomation.com/t/browsing-historical-data-on-a-remote-tag-provider/88197/3 "2024-04-02T11:29:32Z")
IIRC get with your IA Sales rep and ask about the Historian Read-Only module for your front end. Then your front end can read the historians on the backend but not put data into the historian. ---
**Author:** ![jlandwerlen](https://avatars.discourse-cdn.com/v4/letter/j/bc8723/32.png) [@jlandwerlen](https://forum.inductiveautomation.com/u/jlandwerlen)\ **Post date:** [April 2, 2024, 2:31pm UTC](https://forum.inductiveautomation.com/t/browsing-historical-data-on-a-remote-tag-provider/88197/4 "2024-04-02T14:31:51Z")
The tag history portion of this doc might be helpful... > **[Scale-Out Architecture Guide | Ignition User Manual](https://www.docs.inductiveautomation.com/docs/8.1/tutorials/tutorials-and-helpful-tricks/scale-out-architecture-guide#tag-history)** > > A guide demonstrating how to migrate to a scale-out architecture ---
**Author:** ![joshdunstan](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/joshdunstan/32/43306_2.png) [@joshdunstan](https://forum.inductiveautomation.com/u/joshdunstan)\ **Post date:** [April 2, 2024, 11:12pm UTC](https://forum.inductiveautomation.com/t/browsing-historical-data-on-a-remote-tag-provider/88197/5 "2024-04-02T23:12:47Z")
Thanks, it turns our that you're all right. There's a 'free' license for a read only tag historian module for front end servers that I can get from IA and will do. The configuration on the tag provider for historical data access appears to be for when accessing the historical data via a real time tag path, it appears that it resolves the ignition hostname that inserted the data via this. This is useful for me so I don't have to store that config anywhere. Thanks gents.