# SHA512 checksum for Elastic

**URL:** <https://discuss.elastic.co/t/sha512-checksum-for-elastic/143867>\
**Category:** Elasticsearch\
**Created:** [August 10, 2018, 12:35pm UTC](https://discuss.elastic.co/t/sha512-checksum-for-elastic/143867 "2018-08-10T12:35:03Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![rshetty](https://avatars.discourse-cdn.com/v4/letter/r/6a8cbe/32.png) [@rshetty](https://discuss.elastic.co/u/rshetty)\
**Post date:** [August 10, 2018, 12:35pm UTC](https://discuss.elastic.co/t/sha512-checksum-for-elastic/143867/1 "2018-08-10T12:35:03Z")

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Hi,

I need to perform the sha512 checksum for my elastic tar files in our Linux servers.

The article I have referred:

> **[SHA-512 checksums for Elastic Stack artifacts
	  	 | Elastic](https://www.elastic.co/blog/sha512-checksums-for-elastic-stack-artifacts)**
>
> Elastic now provide SHA-512 checksum files for all Elastic Stack released artifacts since 5.6.2. No more SHA-1 checksum files will be produced starting with 6.0.0.

The curl commands in this article require a internet connection to perform the checksum. But, there is an issue that I cannot connect to the internet in these servers so could someone suggest an alternative to performing this sha512 checksum without internet?

Thanks!

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**Author:** ![thiago](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/thiago/32/32096_2.png) [@thiago](https://discuss.elastic.co/u/thiago)\
**Post date:** [August 12, 2018, 5:26pm UTC](https://discuss.elastic.co/t/sha512-checksum-for-elastic/143867/2 "2018-08-12T17:26:07Z")

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> [@rshetty](#):
>
> The curl commands in this article require a internet connection to perform the checksum

The `curl` is to _download_ the checksum that was already generated from our side. You need that so you can compare it with the checksum generated from your server.

I am not really sure what you are asking here.

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**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:** [August 13, 2018, 1:23am UTC](https://discuss.elastic.co/t/sha512-checksum-for-elastic/143867/3 "2018-08-13T01:23:17Z")

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You'll need to download the sha files from our website to your network, then transfer them to the hosts with no internet connectivity somehow,

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**Author:** ![rshetty](https://avatars.discourse-cdn.com/v4/letter/r/6a8cbe/32.png) [@rshetty](https://discuss.elastic.co/u/rshetty)\
**Post date:** [September 7, 2018, 8:39am UTC](https://discuss.elastic.co/t/sha512-checksum-for-elastic/143867/4 "2018-09-07T08:39:05Z")

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Thank you @thiago and @warkolm for your input. We were able to figure out the solution for this.

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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:** [October 5, 2018, 8:39am UTC](https://discuss.elastic.co/t/sha512-checksum-for-elastic/143867/5 "2018-10-05T08:39:08Z")

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