# Warning message ssh connection

**URL:** https://syncloud.discourse.group/t/warning-message-ssh-connection/666
**Category:** Feature requests and development
**Created:** [11 August 2026 06:48 UTC](https://syncloud.discourse.group/t/warning-message-ssh-connection/666 "2026-08-11T06:48:36Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![shire](https://yyz2.discourse-cdn.com/free1/user_avatar/syncloud.discourse.group/shire/32/291_2.png) [@shire](https://syncloud.discourse.group/u/shire)
#### Post date: [11 August 2026 06:48 UTC](https://syncloud.discourse.group/t/warning-message-ssh-connection/666/1 "2026-08-11T06:48:36Z")

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I tried using ssh to log into the device and receive the following message. Is there maybe something which needs updating?

\*\* WARNING: connection is not using a post-quantum key exchange algorithm.  
\*\* This session may be vulnerable to “store now, decrypt later” attacks.  
\*\* The server may need to be upgraded. See [OpenSSH: Post-Quantum Cryptography](https://openssh.com/pq.html)

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### Author: ![boris](https://avatars.discourse-cdn.com/v4/letter/b/74df32/32.png) [@boris](https://syncloud.discourse.group/u/boris)
#### Post date: [11 August 2026 08:04 UTC](https://syncloud.discourse.group/t/warning-message-ssh-connection/666/2 "2026-08-11T08:04:44Z")

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It is harmless for now but I am will add ssh server upgrade soon.

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### Author: ![shire](https://yyz2.discourse-cdn.com/free1/user_avatar/syncloud.discourse.group/shire/32/291_2.png) [@shire](https://syncloud.discourse.group/u/shire)
#### Post date: [11 August 2026 08:41 UTC](https://syncloud.discourse.group/t/warning-message-ssh-connection/666/3 "2026-08-11T08:41:12Z")

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Thanks for the information.
