<p>You're seeing probes for automatic configuration if it were running.</p>

CC BY-SA 4.0
2020-10-01T07:34:21.333Z
2020-10-01T07:34:21.333Z
Claris
<p>Running bitcoin-qt with default policy in the OUTPUT chain to DROP I see lots of packets from localhost to localhost with destination port 9051 being dropped. If I open that port the node syncs. I do not see any service listening on that port. Why is it connecting? This is a tor port and I am not currently running tor here.</p>

CC BY-SA 4.0
2020-10-01T17:47:41.940Z
9051 is usually a Tor transport controller port. Bitcoin might just be looking to see if it can connect to the network via tor
pinhead
<client>
why is bitcoin-qt connecting to port 9051?
Reimundo Heluani
# why is bitcoin-qt connecting to port 9051?

(Asked by: username_0 on 2020-09-30)

Running bitcoin-qt with default policy in the OUTPUT chain to DROP I see lots of packets from localhost to localhost with destination port 9051 being dropped. If I open that port the node syncs. I do not see any service listening on that port. Why is it connecting? This is a tor port and I am not currently running tor here.

**Tags:** client

> **Comments:**
> **username_1**: 9051 is usually a Tor transport controller port. Bitcoin might just be looking to see if it can connect to the network via tor  

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## 1 answers

### Answer by username_2 on 2020-10-01. Score: 2 | Accepted answer

You're seeing probes for automatic configuration if it were running.


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