# ELK in docker - fleet server on the host

**URL:** <https://discuss.elastic.co/t/elk-in-docker-fleet-server-on-the-host/346230>\
**Category:** Elasticsearch\
**Tags:** docker, fleet\
**Created:** [November 1, 2023, 5:50pm UTC](https://discuss.elastic.co/t/elk-in-docker-fleet-server-on-the-host/346230 "2023-11-01T17:50:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ken33](https://avatars.discourse-cdn.com/v4/letter/k/858c86/32.png) [@ken33](https://discuss.elastic.co/u/ken33)\
**Post date:** [November 1, 2023, 5:50pm UTC](https://discuss.elastic.co/t/elk-in-docker-fleet-server-on-the-host/346230/1 "2023-11-01T17:50:57Z")

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Dear all,  
Sorry for asking a question allready seen question but not enough details to solve the pb.

I install elk in docker according to the doc

Docker is running on a host 192.168.50.3.  
Docker network is 172.19.0.0/16  
(Elasticsearch in a container : IP 172.19.0.2 and kibana in another container IP: 172.19.0.3).  
ELK version 8.10.4

Then installing Fleet A fleet server (on the host itself:IP 192.168.50.3)

```auto
 sudo ./elastic-agent install \
  --fleet-server-es=https://172.19.0.3:9200 \
  --fleet-server-service-token=XXXXXXXXXXXXXXXXXXXX \
  --fleet-server-policy=fleet-server-policy \
  --fleet-server-es-ca-trusted-fingerprint=XXXXXXXXXXXXXX \
  --fleet-server-port=8220

```

Everything is fine - get logs

Now trying to add an agent on **another linux server**  
Registering without any problem (with option insecure)  
**But not logs.**

1. My Hypothesis is that the agent is using 172.19.0.3 as the output.  
As this is on the internal docker network is fails. Is this correct ?

2. According to some other posts. I tried to change the output to  
`https://192.168.50.3:9200`  
(comment the line xpack.fleet.outputs: [....  
in kibana.yaml

Now I can define the default output to 192.168.0.3  
Now I can register fleet server (with install option --fleet-server-es-insecure)

But now no logs from the agent on the host...

So my questions:  
In order to accept agents and to get logs from the fleet server on the host AND from agents on some other machines  
1° What is the recommended configuration ?  
2° When changing the output, what is the command to renew the certificate properly.

Thank you for your attention.  
Best regards,  
Ken

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [November 29, 2023, 5:51pm UTC](https://discuss.elastic.co/t/elk-in-docker-fleet-server-on-the-host/346230/2 "2023-11-29T17:51:50Z")

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