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A free and open implementation of the SSH communication security tools.

17 votes
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Understanding ssh-rsa not in PubkeyAcceptedAlgorithms

Since SHA-1 is insecure, OpenSSH disables the ssh-rsa signature algorithm since version 8.8. … If you cannot get a current OpenSSH version through your OS, then install OpenSSH independently. Create a new SSH key with the ECDSA type (e. g. ecdsa-sha2-nistp256) or EdDSA rather than RSA. …
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4 votes
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Can someone with access to only my Yubikey gain access to my server that has SSH access via ...

There are two options. By default (i. e. if the -O resident parameter isn't set), nothing is stored on the YubiKey. Instead, the YubiKey generates a private key, encrypts it (and some metadata) with t …
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