# IgnitionOPC-UA on Linux Ubuntu 10

**URL:** <https://forum.inductiveautomation.com/t/ignitionopc-ua-on-linux-ubuntu-10/2152>\
**Category:** Ignition\
**Created:** [August 26, 2010, 10:07am UTC](https://forum.inductiveautomation.com/t/ignitionopc-ua-on-linux-ubuntu-10/2152 "2010-08-26T10:07:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![johannes](https://avatars.discourse-cdn.com/v4/letter/j/7ba0ec/32.png) [@johannes](https://forum.inductiveautomation.com/u/johannes)\
**Post date:** [August 26, 2010, 10:07am UTC](https://forum.inductiveautomation.com/t/ignitionopc-ua-on-linux-ubuntu-10/2152/1 "2010-08-26T10:07:07Z")

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Hello,

I am wondering where to put the certificates of the clients that want to connect to the Ignition OPC-UA server?

best regards Johannes

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**Author:** ![Michael.Stofan](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/michael.stofan/32/3342_2.png) [@Michael.Stofan](https://forum.inductiveautomation.com/u/Michael.Stofan)\
**Post date:** [September 21, 2011, 9:45pm UTC](https://forum.inductiveautomation.com/t/ignitionopc-ua-on-linux-ubuntu-10/2152/2 "2011-09-21T21:45:57Z")

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As an OPC-UA Server, we don’t deal with any certificates directly. Just make sure the username/password are correct on your OPC-UA client and you should be good to go.