# Setting up minimal security for Elasticsearch 7.16.2
**URL:** https://discuss.elastic.co/t/setting-up-minimal-security-for-elasticsearch-7-16-2/294316
**Category:** Elasticsearch
**Created:** [January 13, 2022, 6:58pm UTC](https://discuss.elastic.co/t/setting-up-minimal-security-for-elasticsearch-7-16-2/294316 "2022-01-13T18:58:41Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Akhil2](https://discuss.elastic.co/u/Akhil2)
#### Post date: [January 13, 2022, 6:58pm UTC](https://discuss.elastic.co/t/setting-up-minimal-security-for-elasticsearch-7-16-2/294316/1 "2022-01-13T18:58:41Z")
Hello all,
I am using Elastic stack version 7.16.2 with a three node cluster implementation.
I am using a basic license. I understand I can set up three different levels of security for my elastic stack.
1. Minimal security - single node cluster
2. Basic security - Multi node cluster
3. Set up basic security for the Elastic Stack plus secured HTTPS traffic
I am planning to use Basic security for my multi node cluster. I assume I can set up basic security with Basic (free) license.
Right now I am step one which is minimal security and I am following this documentation.
> **[Set up minimal security for Elasticsearch | Elasticsearch Guide \[7.16\] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/current/security-minimal-setup.html)**
I have added following in Elasticsearch.yml for every node.
```auto
xpack.security.enabled: true
xpack.security.transport.ssl.enabled: true
```
After that, I started Elasticsearch but got following error.
```auto
[2022-01-13T13:55:41,227][WARN][o.e.t.TcpTransport] [fs-master] exception caught on transport layer [Netty4TcpChannel{localAddress=0.0.0.0/0.0.0.0:9300, remoteAddress=/7.33.19.21:53006, profile=default}], closing connection
io.netty.handler.codec.DecoderException: javax.net.ssl.SSLHandshakeException: No available authentication scheme
at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:477) ~[netty-codec-4.1.66.Final.jar:4.1.66.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:276) ~[netty-codec-4.1.66.Final.jar:4.1.66.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.66.Final.jar:4.1.66.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.66.Final.jar:4.1.66.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.66.Final.jar:4.1.66.Final]
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) [netty-transport-4.1.66.Final.jar:4.1.66.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.66.Final.jar:4.1.66.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.66.Final.jar:4.1.66.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) [netty-transport-4.1.66.Final.jar:4.1.66.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166) [netty-transport-4.1.66.Final.jar:4.1.66.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719) [netty-transport-4.1.66.Final.jar:4.1.66.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:620) [netty-transport-4.1.66.Final.jar:4.1.66.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:583) [netty-transport-4.1.66.Final.jar:4.1.66.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) [netty-transport-4.1.66.Final.jar:4.1.66.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) [netty-common-4.1.66.Final.jar:4.1.66.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.1.66.Final.jar:4.1.66.Final]
at java.lang.Thread.run(Thread.java:834) [?:?]
```
I am new to the security configuration. Can someone please tell me what to do next?
Thank you,
Akhil Patel
---
### Author:  [@Akhil2](https://discuss.elastic.co/u/Akhil2)
#### Post date: [January 17, 2022, 7:39pm UTC](https://discuss.elastic.co/t/setting-up-minimal-security-for-elasticsearch-7-16-2/294316/3 "2022-01-17T19:39:13Z")
> [@Akhil2](#):
>
> ```auto
> caught on transport layer [Netty4TcpChannel{localAddress=0.0.0.0/0.0.0.0:9300, remoteAddress=/7.33.19.21:53006, profile=default}], closing connection
> io.netty.handler.codec.DecoderException: javax.net.ssl.SSLHandshakeException: No available authentication scheme
>
> ```
I found a solution. I am not sure if I can do that but it worked for me.
I set up basic security first and then tried to set up minimal security.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [February 14, 2022, 7:39pm UTC](https://discuss.elastic.co/t/setting-up-minimal-security-for-elasticsearch-7-16-2/294316/4 "2022-02-14T19:39:51Z")
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