# MAC address setting for elasticsearch?

**URL:** <https://discuss.elastic.co/t/mac-address-setting-for-elasticsearch/81227>\
**Category:** Elasticsearch\
**Created:** [April 4, 2017, 10:29pm UTC](https://discuss.elastic.co/t/mac-address-setting-for-elasticsearch/81227 "2017-04-04T22:29:30Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![YuWatanabe](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/yuwatanabe/32/13259_2.png) [@YuWatanabe](https://discuss.elastic.co/u/YuWatanabe)\
**Post date:** [April 4, 2017, 10:29pm UTC](https://discuss.elastic.co/t/mac-address-setting-for-elasticsearch/81227/1 "2017-04-04T22:29:30Z")

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My environement is _elasticsearch 5.3.0_

During the start up of elasticsearch process , I see below **warning**.

`[2017-04-05T07:24:29,481][WARN][i.n.u.i.MacAddressUtil] Failed to find a usable hardware address from the network interfaces; using random bytes: f0:71:d1:7e:9e:87:9e:62`

Is there a setting where you statically set MAC address? It looks like the process is not reading neither from _/etc/sysconfig/network-scripts/ifcfg-\*_ nor _ip link_ command.

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**Author:** ![jasontedor](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jasontedor/32/66992_2.png) [@jasontedor](https://discuss.elastic.co/u/jasontedor)\
**Post date:** [April 4, 2017, 11:53pm UTC](https://discuss.elastic.co/t/mac-address-setting-for-elasticsearch/81227/2 "2017-04-04T23:53:49Z")

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See: [ES 5.2.0 in KVM - Netty Warning : Failed to find a usable hardware address from the network interfaces](https://discuss.elastic.co/t/es-5-2-0-in-kvm-netty-warning-failed-to-find-a-usable-hardware-address-from-the-network-interfaces/73717/3)

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<div class="post-metadata">

**Author:** ![YuWatanabe](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/yuwatanabe/32/13259_2.png) [@YuWatanabe](https://discuss.elastic.co/u/YuWatanabe)\
**Post date:** [April 4, 2017, 11:57pm UTC](https://discuss.elastic.co/t/mac-address-setting-for-elasticsearch/81227/3 "2017-04-04T23:57:44Z")

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@jasontedor

Understood. Thanks.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [May 2, 2017, 11:57pm UTC](https://discuss.elastic.co/t/mac-address-setting-for-elasticsearch/81227/4 "2017-05-02T23:57:51Z")

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