# IA cluster and Windows firewall

**URL:** <https://forum.inductiveautomation.com/t/ia-cluster-and-windows-firewall/2119>\
**Category:** Ignition\
**Created:** [August 11, 2010, 11:21pm UTC](https://forum.inductiveautomation.com/t/ia-cluster-and-windows-firewall/2119 "2010-08-11T23:21:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Henry](https://avatars.discourse-cdn.com/v4/letter/h/df705f/32.png) [@Henry](https://forum.inductiveautomation.com/u/Henry)\
**Post date:** [August 11, 2010, 11:21pm UTC](https://forum.inductiveautomation.com/t/ia-cluster-and-windows-firewall/2119/1 "2010-08-11T23:21:24Z")

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What ports do I need to open for an IA cluster to work properly behind a Windows firewall?  
Thanks

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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:** [August 12, 2010, 2:37am UTC](https://forum.inductiveautomation.com/t/ia-cluster-and-windows-firewall/2119/2 "2010-08-12T02:37:13Z")

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80, 443, 8750, and 8811 by default. And 8088 for access to the Ignition gateway itself…

These are all configurable/viewable in the clustering settings under Configuration \> Clustering on the gateway.