# Limit project to one client

**URL:** <https://forum.inductiveautomation.com/t/limit-project-to-one-client/20571>\
**Category:** Ignition\
**Created:** [November 6, 2018, 6:03pm UTC](https://forum.inductiveautomation.com/t/limit-project-to-one-client/20571 "2018-11-06T18:03:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Tim](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/tim/32/3361_2.png) [@Tim](https://forum.inductiveautomation.com/u/Tim)\
**Post date:** [November 6, 2018, 6:03pm UTC](https://forum.inductiveautomation.com/t/limit-project-to-one-client/20571/1 "2018-11-06T18:03:40Z")

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What is a good method to limit a project to only one running client at a time?

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<div class="post-metadata">

**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [November 6, 2018, 6:10pm UTC](https://forum.inductiveautomation.com/t/limit-project-to-one-client/20571/2 "2018-11-06T18:10:16Z")

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Add a client message handler that will fire [`system.util.exit()`](https://docs.inductiveautomation.com/display/DOC79/system.util.exit)  
Either periodically (ie, gateway timer script) or on demand (send a message from client - \> gateway on client startup) check for duplicate sessions ([`system.util.getSessionInfo()`](https://docs.inductiveautomation.com/display/DOC79/system.util.getSessionInfo) is one option).  
Decide what the criteria is for which client stays and which one goes  
[Send a message](https://docs.inductiveautomation.com/display/DOC79/system.util.sendMessage) from the gateway to the client you want to close.