# Established connections by elastic search **URL:** \ **Category:** Elasticsearch\ **Created:** [April 25, 2018, 3:24pm UTC](https://discuss.elastic.co/t/established-connections-by-elastic-search/129526 "2018-04-25T15:24:58Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![niaz](https://avatars.discourse-cdn.com/v4/letter/n/d9b06d/32.png) [@niaz](https://discuss.elastic.co/u/niaz)\ **Post date:** [April 25, 2018, 3:24pm UTC](https://discuss.elastic.co/t/established-connections-by-elastic-search/129526/1 "2018-04-25T15:24:59Z")
Hello, I am using elastic search on Windows as single node. That means I have set "transport.type: local" in config file. The number of opened connections that I see in TcpView is over 30. Elastic search is simply started and there is no client connected with it. Just want to know, if this is normal or I need to fine tune some setting to change the number of connections. BTW if I don't set "transport.type: local" in config file, then the number of connections are double. Please have a look on the attached picture. Thanks Niaz ![image](https://us1.discourse-cdn.com/elastic/original/3X/8/d/8d540880e86f360a910d7c77397618f146613197.png) ---
**Author:** ![zqc0512](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/zqc0512/32/32141_2.png) [@zqc0512](https://discuss.elastic.co/u/zqc0512)\ **Post date:** [April 26, 2018, 6:23am UTC](https://discuss.elastic.co/t/established-connections-by-elastic-search/129526/2 "2018-04-26T06:23:20Z")
as i know it transport use. by andy zhou ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [May 24, 2018, 6:23am UTC](https://discuss.elastic.co/t/established-connections-by-elastic-search/129526/3 "2018-05-24T06:23:24Z")
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