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torsten

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Registered: 2013-06-16

Posts: 8

[solved] What does Gnome (Extensions) do on port 9200?

Hi,

actually, i wanted to start a docker-compose with an elasticsearch. But it failed with the message, that the port is already in use. I was wondering, which application also use this port and it seems to be gnome itself (or gnome extensions). Since when use the extension switch in the optimizing app, gnome stopped listen on this port. if i activate the extension support (without activation any extension) gnome listen again on this port. I didn't find anything about this in the web, so im asking if anybody knows what it is?

Last edited by torsten (2020-07-22 20:31:25)

heywoodlh

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Registered: 2016-10-31

Posts: 26

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Re: [solved] What does Gnome (Extensions) do on port 9200?

More detail would be super helpful in this case.

What commands did you run to see anything listening on port 9200? What was the process name that you saw running?

I am currently on GNOME with a very small number of extensions running and I have nothing occupying port 9200 on my machine:

❯ sudo lsof -i ':9200'


~
❯ 

So, again, it would be very helpful to see the output of whatever command you ran to see what process was already listening on port 9200.

And since turning on extensions seems to be related to your issue it would probably also help if you provided a lit of the extensions you have installed.

jasonwryan

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From: .nz

Registered: 2009-05-09

Posts: 30,426

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Re: [solved] What does Gnome (Extensions) do on port 9200?

https://bbs.archlinux.org/viewtopic.php?id=257243

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heywoodlh

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Registered: 2016-10-31

Posts: 26

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Re: [solved] What does Gnome (Extensions) do on port 9200?

https://bbs.archlinux.org/viewtopic.php?id=257243

jasonwryan, forgive me if it is super obvious and I am just missing the point but how is the issue you linked related to GNOME listening on port 9200?

The issue you linked seems to be about a bunch of requests being made by GNOME, not necessarily a service already occupying port 9200 on the host.

Last edited by heywoodlh (2020-07-11 06:43:01)

jasonwryan

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From: .nz

Registered: 2009-05-09

Posts: 30,426

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Re: [solved] What does Gnome (Extensions) do on port 9200?

Same advice: use Wireshark to determine exactly what is using the port.

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torsten

Member

Registered: 2013-06-16

Posts: 8

Re: [solved] What does Gnome (Extensions) do on port 9200?

Hi, sorry for the late response, here the output of lsof

sudo lsof -i ':9200'a
COMMAND     PID    USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
gnome-she  1410 torsten   21u  IPv4 493639      0t0  TCP localhost.localdomain:wap-wsp (LISTEN)
gnome-she  1410 torsten   40u  IPv4 492248      0t0  TCP localhost.localdomain:wap-wsp->localhost.localdomain:36962 (ESTABLISHED)
node      16436 torsten   28u  IPv4 492247      0t0  TCP localhost.localdomain:36962->localhost.localdomain:wap-wsp (ESTABLISHED)

I used wireshark on "any" interface with the filter "tpc.port == 9200" but no output, so it seems that there is no trafic (I've tested it with nc localhost.localdomain 92000  => 3 packages shown ([SYN], [SYN, ACK], [ACK])

so not jet closer to the reason....

heywoodlh

Member

Registered: 2016-10-31

Posts: 26

Website

Re: [solved] What does Gnome (Extensions) do on port 9200?

Have you tried disabling all your GNOME extensions?

torsten

Member

Registered: 2013-06-16

Posts: 8

Re: [solved] What does Gnome (Extensions) do on port 9200?

I found it today, it's the "Cast to TV" extension. But funny story, if you use the extension screen of the "optimizing tool", the extension is not shutdown successfully, if you use the build-in extensions app, it will...