# Newbie Question

**URL:** <https://discussions.flightaware.com/t/newbie-question/17864>\
**Category:** ADS-B Flight Tracking\
**Created:** [January 8, 2016, 2:00pm UTC](https://discussions.flightaware.com/t/newbie-question/17864 "2016-01-08T14:00:19Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![mgunther](https://sea1.discourse-cdn.com/flex019/user_avatar/discussions.flightaware.com/mgunther/32/78172_2.png) [@mgunther](https://discussions.flightaware.com/u/mgunther)\
**Post date:** [January 8, 2016, 7:51pm UTC](https://discussions.flightaware.com/t/newbie-question/17864/4 "2016-01-08T19:51:54Z")

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OK, PiAware should back-feed MLAT positions to dump1090 on port 30104. See here:  
[https://discussions.flightaware.com/ads-b-flight-tracking-f21/piaware-2-1-3-released-t36047.html](https://discussions.flightaware.com/t/piaware-2-1-3-released/17363)

Please restart PiAware and check /tmp/piaware.out  
It should tell you which port it is trying to connect to for the MLAT output (either 30004 or 30104).

```auto

sudo /etc/init.d/piaware restart

```

I’m not sure why your dump1090 is not listening on either 30004 (the old default) or 30104 (the new default).

Are you using the FA-supplied dump1090 that came with the sd card image? Or did you change to dump1090-mutability?

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