# Ignition server OPC-UA endpoints include facebook.com!

**URL:** <https://forum.inductiveautomation.com/t/ignition-server-opc-ua-endpoints-include-facebook-com/25649>\
**Category:** Ignition\
**Tags:** ignition80\
**Created:** [June 7, 2019, 6:24pm UTC](https://forum.inductiveautomation.com/t/ignition-server-opc-ua-endpoints-include-facebook-com/25649 "2019-06-07T18:24:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![witman](https://avatars.discourse-cdn.com/v4/letter/w/d2c977/32.png) [@witman](https://forum.inductiveautomation.com/u/witman)\
**Post date:** [June 7, 2019, 6:24pm UTC](https://forum.inductiveautomation.com/t/ignition-server-opc-ua-endpoints-include-facebook-com/25649/1 "2019-06-07T18:24:57Z")

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As well as the expected endpoints with server name, localhost, and loopback address, we get endpoints for [facebook.com](http://facebook.com) too:  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/7/781edd9bc7010a21a20338b2b9cdd064764d259f.png)  
We see these when setting endpoint for a connection from Ignition 7.9.9 OPC-UA client to Ignition 8.0.2 OPC-UA server (had to reselect endpoints after upgrading server to 8.0.2 for successful connection). Is there a way to eliminate these [facebook.com](http://facebook.com) endpoints?

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [June 7, 2019, 6:29pm UTC](https://forum.inductiveautomation.com/t/ignition-server-opc-ua-endpoints-include-facebook-com/25649/2 "2019-06-07T18:29:05Z")

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Sounds like you have a DNS firewall somewhere that is both returning 127.0.0.1 for facebook and reverse resolving it. Diverting facebook traffic is a good thing in my book, but 127.0.0.1 needs to always reverse resolve to localhost.

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**Author:** ![witman](https://avatars.discourse-cdn.com/v4/letter/w/d2c977/32.png) [@witman](https://forum.inductiveautomation.com/u/witman)\
**Post date:** [June 7, 2019, 6:31pm UTC](https://forum.inductiveautomation.com/t/ignition-server-opc-ua-endpoints-include-facebook-com/25649/3 "2019-06-07T18:31:11Z")

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That makes sense; thanks @pturmel. IT blocks [facebook.com](http://facebook.com) on corporate network as some operators seemed to think their job was keeping up on facebook… I’ll ask them to fix the reverse resolve.