# UA server host override not working

**URL:** <https://forum.inductiveautomation.com/t/ua-server-host-override-not-working/7285>\
**Category:** Ignition\
**Created:** [September 19, 2013, 3:35am UTC](https://forum.inductiveautomation.com/t/ua-server-host-override-not-working/7285 "2013-09-19T03:35:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![gekkoman](https://avatars.discourse-cdn.com/v4/letter/g/c89c15/32.png) [@gekkoman](https://forum.inductiveautomation.com/u/gekkoman)\
**Post date:** [September 19, 2013, 3:35am UTC](https://forum.inductiveautomation.com/t/ua-server-host-override-not-working/7285/1 "2013-09-19T03:35:46Z")

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OPC UA server has happily been using IP address for a Kepware connection.

Server is 7.6.3-rc2

For some reason IP is now being replacing by hostname and cannot get name resolution as there is no active DNS on this network segment currently.

The forum

[viewtopic.php?f=70&t=10376&p=37038&hilit=host+override#p37038](http://inductiveautomation.com/forum/viewtopic.php?f=70&t=10376&p=37038&hilit=host+override#p37038)

Gives us a workaround.

If you however use the Host Override one gets a NullPointer Fault for any text (host or IP) entered.

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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:** [September 19, 2013, 5:29pm UTC](https://forum.inductiveautomation.com/t/ua-server-host-override-not-working/7285/2 "2013-09-19T17:29:36Z")

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Do you have a stack trace or log files you could mail to support @ [inductiveautomation.com](http://inductiveautomation.com)?

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**Author:** ![gekkoman](https://avatars.discourse-cdn.com/v4/letter/g/c89c15/32.png) [@gekkoman](https://forum.inductiveautomation.com/u/gekkoman)\
**Post date:** [October 11, 2013, 11:30pm UTC](https://forum.inductiveautomation.com/t/ua-server-host-override-not-working/7285/3 "2013-10-11T23:30:49Z")

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Sorry. I had solved my immediate problem by adding a host file entry to the server and didn’t check back on the forum.

The primary cause was windows trying to add IP to DNS even though no DNS was configured.