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Can not ssh into server over ivp6 address (alien.top)

submitted 11 months ago by IgnisDa@alien.top to c/main@selfhosted.forum

5 comments fedilink hide all child comments

I provisioned a machine on Hetzner Cloud. All default settings except Networking where I chose ONLY IPv6. Added an SSH key too.

When I try to connect over ssh, I get the following error:

https://imgur.com/a/mx1hzCU

The public address given by hetzner was 2a01:4ff:1f0:c2f8::/64, but I saw online that I have to replace the /64 with 1.

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[–] InfamousAgency6784@alien.top 1 points 11 months ago

You need to make sure you have IPv6 access to the internet from your computer.
In properly configured Linux boxes, your suffix might not be ::1.

[–] JASN_DE@feddit.de 1 points 11 months ago

Hetzner

Use the web console and check which IP the machine actually has.

[–] certuna@alien.top 1 points 11 months ago

2a01:4ff:1f0:c2f8::/64 is the whole subnet, your server will have one (or more) addresses in that subnet. This could be 2a01:4ff:1f0:c2f8::1, but could also be a randomly generated suffix.

[–] nat64dns64@alien.top 1 points 11 months ago (1 children)

Your client needs to be IPv6-enabled
Your client needs to be able to reach the target server via tcp/22

All this presumes that your sshd is even listening on IPv6...

[–] IgnisDa@alien.top 1 points 11 months ago

I did use the Hetzner console to login into the server and enabled ListenAddress ::.