# How could I do that I can connect another linux computer(server) via OpenIGTLink?

**URL:** <https://discourse.slicer.org/t/how-could-i-do-that-i-can-connect-another-linux-computer-server-via-openigtlink/8678>\
**Category:** Support\
**Tags:** openigtlink\
**Created:** [October 5, 2019, 5:07am UTC](https://discourse.slicer.org/t/how-could-i-do-that-i-can-connect-another-linux-computer-server-via-openigtlink/8678 "2019-10-05T05:07:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Zhao\_Su](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/zhao_su/32/3678_2.png) [@Zhao\_Su](https://discourse.slicer.org/u/Zhao_Su)\
**Post date:** [October 5, 2019, 5:07am UTC](https://discourse.slicer.org/t/how-could-i-do-that-i-can-connect-another-linux-computer-server-via-openigtlink/8678/1 "2019-10-05T05:07:48Z")

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I want to connect a robot arm using Slicer. I had already set up the ROS enviroment and installed ROS-IGT\_bridge and everything I need. But when I use OpenIGTLinkIF module , and check the Active, the status is always “wait”. Am I right text the contents like this?  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/3/7/371cce0f682cb51c814bfc234c96aa9a6abe6a44.png)

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [October 7, 2019, 6:09pm UTC](https://discourse.slicer.org/t/how-could-i-do-that-i-can-connect-another-linux-computer-server-via-openigtlink/8678/2 "2019-10-07T18:09:41Z")

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Hostname shown on the screenshot is invalid.

Make sure one of ROS-IGTL-bridge and Slicer is set up as server and the other as client.

Try to disable firewall temporarily to make sure it is not preventing network connections.