# Comm between OPC UA server on LINUX & Kepservr UA client

**URL:** <https://forum.inductiveautomation.com/t/comm-between-opc-ua-server-on-linux-kepservr-ua-client/5375>\
**Category:** Archived Topics\
**Created:** [November 5, 2012, 8:16am UTC](https://forum.inductiveautomation.com/t/comm-between-opc-ua-server-on-linux-kepservr-ua-client/5375 "2012-11-05T08:16:19Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ahmadkamal](https://avatars.discourse-cdn.com/v4/letter/a/ecc23a/32.png) [@ahmadkamal](https://forum.inductiveautomation.com/u/ahmadkamal)\
**Post date:** [November 5, 2012, 8:16am UTC](https://forum.inductiveautomation.com/t/comm-between-opc-ua-server-on-linux-kepservr-ua-client/5375/1 "2012-11-05T08:16:19Z")

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i have ignition-7.5.3-linux-x64 on ubuntu and OPC UA server is active on the other side Kepserver UA client is present on Windows 7 or XP system,both machines are on same network.I am unable to access OPC UA server from my kepserver client on windows.Can i access opc UA server (Linux )on Kepserver OPC UA client present on windows network and how?plz give me some positive advice.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:** [November 5, 2012, 2:52pm UTC](https://forum.inductiveautomation.com/t/comm-between-opc-ua-server-on-linux-kepservr-ua-client/5375/2 "2012-11-05T14:52:26Z")

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What error messages are you getting? Do you have the username and password configured correctly? The correct endpoint/port?

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**Author:** ![ahmadkamal](https://avatars.discourse-cdn.com/v4/letter/a/ecc23a/32.png) [@ahmadkamal](https://forum.inductiveautomation.com/u/ahmadkamal)\
**Post date:** [November 5, 2012, 5:58pm UTC](https://forum.inductiveautomation.com/t/comm-between-opc-ua-server-on-linux-kepservr-ua-client/5375/3 "2012-11-05T17:58:57Z")

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Yes dear i am giving diffault password of ignition ua server.and also giving port number assigned in ua server.but i am unable to connect the device on kepserver ua client .and also i cant browse the device .my ua server is on linux system and kepware ua client is on microsoft windows system.is there some special cofiguration for this architecture?

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**Author:** ![ccornett](https://avatars.discourse-cdn.com/v4/letter/c/f14d63/32.png) [@ccornett](https://forum.inductiveautomation.com/u/ccornett)\
**Post date:** [December 14, 2012, 10:32pm UTC](https://forum.inductiveautomation.com/t/comm-between-opc-ua-server-on-linux-kepservr-ua-client/5375/4 "2012-12-14T22:32:39Z")

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Did you ever get this working? I had to set some Windows firewall settings to get a OPC UA connection.