# Name or service not known
**URL:** https://discuss.elastic.co/t/name-or-service-not-known/284831
**Category:** Elasticsearch
**Created:** [September 22, 2021, 9:31am UTC](https://discuss.elastic.co/t/name-or-service-not-known/284831 "2021-09-22T09:31:58Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@mahalanobis](https://discuss.elastic.co/u/mahalanobis)
#### Post date: [September 22, 2021, 9:31am UTC](https://discuss.elastic.co/t/name-or-service-not-known/284831/1 "2021-09-22T09:31:58Z")
I'm trying to setup an Elasticsearch cluster but I'm getting "Name or service not known"
Below you can find configuration and logs
first node logs: [https://gist.github.com/sintonag/d6ee4e4c68084a0941c28afcf251b519](https://gist.github.com/sintonag/d6ee4e4c68084a0941c28afcf251b519)
second node logs: [https://gist.github.com/sintonag/d2443267154a485f33f1f7c18d073e30](https://gist.github.com/sintonag/d2443267154a485f33f1f7c18d073e30)
Node 1 yaml file
```auto
cluster.name: es-cluster
node.name: es-a
path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch
network.host: xx.xxx.xxx.xx
discovery.seed_hosts:
- yy.yyy.yyy.yy
cluster.initial_master_nodes:
- es-a
- es-b
```
Node 2 yaml file
```auto
cluster.name: es-cluster
node.name: es-b
path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch
network.host: yy.yyy.yyy.yy
discovery.seed_hosts:
- xx.xxx.xxx.xx
cluster.initial_master_nodes:
- es-a
- es-b
```
If the problem is related to ports, how can I override port 9300 in the Elasticsearch.yml file?
---
### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [September 22, 2021, 12:31pm UTC](https://discuss.elastic.co/t/name-or-service-not-known/284831/2 "2021-09-22T12:31:05Z")
I'd try this:
```auto
cluster.initial_master_nodes:
- xx.xxx.xxx.xx
- yy.yyy.yyy.yy
```
---
### Author:  [@mahalanobis](https://discuss.elastic.co/u/mahalanobis)
#### Post date: [September 23, 2021, 9:52am UTC](https://discuss.elastic.co/t/name-or-service-not-known/284831/3 "2021-09-23T09:52:10Z")
Still I cannot setup the cluster. I tried your suggestion.
On logs I don't see any errors.
Are the changes I make to Elasticsearch.yml applied? I just stop and start the service every time I change something.
Also, I would like to override the default ports 9200 and 9300. How can I do that?
---
### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [September 23, 2021, 11:59am UTC](https://discuss.elastic.co/t/name-or-service-not-known/284831/4 "2021-09-23T11:59:26Z")
Please share the full logs after the change.
> Also, I would like to override the default ports 9200 and 9300. How can I do that?
Why would you do that?
---
### Author:  [@mahalanobis](https://discuss.elastic.co/u/mahalanobis)
#### Post date: [September 24, 2021, 8:52am UTC](https://discuss.elastic.co/t/name-or-service-not-known/284831/5 "2021-09-24T08:52:37Z")
@dadoonet I have the impression nodes cannot communicate so I was thinking to change the ports
Anyway, I'm posting the logs
node-a: [https://gist.github.com/sintonag/c61acbcad418616e49a28c3c95a6117b](https://gist.github.com/sintonag/c61acbcad418616e49a28c3c95a6117b)
node-b: [https://gist.github.com/sintonag/15a66f9c0561db75fa87b1e1b5b35a9e](https://gist.github.com/sintonag/15a66f9c0561db75fa87b1e1b5b35a9e)
---
### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [September 28, 2021, 11:48am UTC](https://discuss.elastic.co/t/name-or-service-not-known/284831/6 "2021-09-28T11:48:39Z")
Could you stop the nodes, remove the content of the data dir (`/var/lib/elasticsearch`) for each node (I guess you don't have any data yet) and the restart node 1, then node 2.
Here is what I would write as the settings for both nodes:
```auto
cluster.name: es-cluster
node.name: es-a # (or es-b)
path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch
discovery.seed_hosts:
- xx.xxx.xxx.xx
- yy.yyy.yyy.yy
cluster.initial_master_nodes:
- es-a
- es-b
```
If it does not work, I'd try to stop again, remove the data dir and restart with the following config
```auto
cluster.name: es-cluster
node.name: es-a # (or es-b)
path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch
discovery.seed_hosts:
- xx.xxx.xxx.xx
- yy.yyy.yyy.yy
cluster.initial_master_nodes:
- xx.xxx.xxx.xx
- yy.yyy.yyy.yy
```
---
### Author:  [@mahalanobis](https://discuss.elastic.co/u/mahalanobis)
#### Post date: [September 29, 2021, 12:29pm UTC](https://discuss.elastic.co/t/name-or-service-not-known/284831/7 "2021-09-29T12:29:50Z")
Yes! It worked. Thank you.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 27, 2021, 12:30pm UTC](https://discuss.elastic.co/t/name-or-service-not-known/284831/8 "2021-10-27T12:30:40Z")
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