Hello, I have an ancient server running RHEL6 which cannot be upgraded (and is not connected to the internet). However, with Fedora 40 I was able to ssh in with this config: Host bohemia User root HostName bohemia.local PubkeyAcceptedKeyTypes ssh-rsa HostKeyAlgorithms +ssh-rsa Afte…

You can also try this: Downgrade the crypto policies. Regenerate the keys to 2048+ bit, both auth and hostid. Regenerate the cert with the SHA-256 signature algorithm. If nothing helps, they likely dropped the relevant piece of code. See also: Changes/OpenSSLDistrustSHA1SigVer - Fedora Project W…

Fedora 41: SSH to RHEL6 - error in libcrypto

Ask Fedora

lzap (Lukáš Zapletal) November 8, 2024, 9:05pm 10

Ah updating policy did work. Thanks!

sudo update-crypto-policies --set LEGACY
ssh xxx

2 Likes

Topic		Replies	Views
Again ssh connection problem Ask Fedora f31	32	5885	February 9, 2020
Fedora 36’s OpenSSH 8.8p1 can’t connect to a server with a much older version Ask Fedora f36 , ssh	4	3428	May 17, 2022
Fedora 33 - unable to SSH into new DigitalOcean droplet Ask Fedora	14	2162	January 16, 2021
After upgrade to Fedora 37 stop working ssh login via private key Ask Fedora f37	1	2322	February 7, 2023
Cannot connect to SFTP file share in local network Ask Fedora f35 , f36	13	1529	May 16, 2023

Fedora 41: SSH to RHEL6 - error in libcrypto

Related topics