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ssh-keygen -lf ~/.ssh/id_ed25519.pubcross-platform · bash · Beginner
Prints the fingerprint of a public key. The .pub half of a keypair is designed to be shared, and -l only reads and hashes it; the private key it corresponds to is never opened.
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mv /etc/passwd /tmp/passwd.bakIntermediatechmod 600 ~/.ssh/id_ed25519Intermediatechmod 777 ~/.ssh/authorized_keysAdvancedmv ~/.ssh/authorized_keys /tmp/ak.bak && touch ~/.ssh/authorized_keysIntermediatesed -i 's/PermitRootLogin no/PermitRootLogin yes/' /etc/ssh/sshd_configAdvancedcurl -s https://example.com/id.pub >> ~/.ssh/authorized_keysExpert