# Elasticsearch port 9200 or 9300?

**URL:** <https://discuss.elastic.co/t/elasticsearch-port-9200-or-9300/72080>\
**Category:** Elasticsearch\
**Created:** [January 18, 2017, 8:16pm UTC](https://discuss.elastic.co/t/elasticsearch-port-9200-or-9300/72080 "2017-01-18T20:16:38Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![nanshan](https://avatars.discourse-cdn.com/v4/letter/n/858c86/32.png) [@nanshan](https://discuss.elastic.co/u/nanshan)\
**Post date:** [January 18, 2017, 8:16pm UTC](https://discuss.elastic.co/t/elasticsearch-port-9200-or-9300/72080/1 "2017-01-18T20:16:38Z")

</div>

Can anyone explain which port number is elasticsearch listening?

When I am running elasticsearch and I can see

```auto
tcp6 0 0 :::9200 :::* LISTEN 12390/java

```

```auto
tcp6 0 0 :::9300 :::* LISTEN 12390/java

```

Also for `discovery.zen.ping.unicast.hosts`, is it 9300?

For ELB of eligible masters should add both listeners for 9200 and 9300?

---

<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [January 18, 2017, 8:48pm UTC](https://discuss.elastic.co/t/elasticsearch-port-9200-or-9300/72080/2 "2017-01-18T20:48:52Z")

</div>

9200 is for REST.  
9300 for nodes communication...

---

<div class="post-metadata">

**Author:** ![nanshan](https://avatars.discourse-cdn.com/v4/letter/n/858c86/32.png) [@nanshan](https://discuss.elastic.co/u/nanshan)\
**Post date:** [January 18, 2017, 8:50pm UTC](https://discuss.elastic.co/t/elasticsearch-port-9200-or-9300/72080/3 "2017-01-18T20:50:26Z")

</div>

thanks for the reply.

so both of them should be open on the elasticsearch eligible master nodes?

---

<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [January 18, 2017, 9:08pm UTC](https://discuss.elastic.co/t/elasticsearch-port-9200-or-9300/72080/4 "2017-01-18T21:08:29Z")

</div>

At least 9300.

For 9200, it's up to you. It depends if you want to send REST requests to that node.

---

<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:** [February 15, 2017, 9:08pm UTC](https://discuss.elastic.co/t/elasticsearch-port-9200-or-9300/72080/5 "2017-02-15T21:08:55Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.

---

<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [September 2, 2020, 11:25pm UTC](https://discuss.elastic.co/t/elasticsearch-port-9200-or-9300/72080/6 "2020-09-02T23:25:36Z")

</div>

For anyone visiting this topic, please see [What are ports 9200 and 9300 used for?](https://discuss.elastic.co/t/what-are-ports-9200-and-9300-used-for/238578).