> Am 02.07.2024 um 23:50 schrieb Kevin Fenzi <ke...@scrye.com>:
> 
> On Tue, Jul 02, 2024 at 02:21:40PM GMT, Chris Adams wrote:
>> Once upon a time, Kevin Fenzi <ke...@scrye.com> said:
>>> Please see https://fedoraproject.org/wiki/Infrastructure/fedorapeople.org
>>> For more information, including information on adding our SSH CA or
>>> using dnssec / sshfp to verify the ssh host key of the new host.
>> 
>> AFAIK the default Fedora setup with systemd-resolved does not support
>> DNSSEC for ssh using SSHFP records, and also the default SSH config
>> doesn't have VerifyHostKeyDNS enabled (so even if ssh could get the
>> record, with DNSSEC, it wouldn't use it).
> 
> Yep, you need to enable dnssec in systemd-resolved (and have a
> nameserver that supports it) and set VerifyHostKeyDNS=yes in ssh_config.
> 
> For that reason, I would say just adding the fedoraproject CA to
> known_hosts is much easier. (And also works for other fedoraproject.org
> hosts).


Maybe we need a more extensive documentation for this? Something like:

1. minimal action
- What do you achieve (just use the functionality as you did before)
- Deal with the message "… authenticity of host … can't be established.“

2. Use optional functionality
- SSH CA
—- What do you achieve
—- How to configure
- dnssec
—- What do you achieve
—- How to configure


We could do that by creating a Quick Doc article or by adding a section to the 
current Wiki page. 




--
Peter Boy
https://fedoraproject.org/wiki/User:Pboy
p...@fedoraproject.org

Timezone: CET (UTC+1) / CEST (UTC+2)

Fedora Server Edition Working Group member
Fedora Docs team contributor and board member
Java developer and enthusiast




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