• OpenSSH client notes
• See OpenSSH Server notes for servers

mkdir -p ~/'.ssh' && echo -e "StrictHostKeyChecking='no'\nUserKnownHostsFile='/dev/null'\nLogLevel='QUIET'" | tee ~/'.ssh/config' > '/dev/null' && chmod '600' ~/'.ssh/config'

nano ~/'.ssh/config' && chmod '600' ~/'.ssh/config'

StrictHostKeyChecking='no'
UserKnownHostsFile='/dev/null'
LogLevel='QUIET'

• Can generate both a standard keypair and one for a hardware key
• Hardware key will be used first if it's plugged-in

• ArchWiki

ssh-keygen -t 'ed25519'

• ArchWiki
• Works with Solo
• ed25519-sk didn't work with Solo 4.0.0

ssh-keygen -t 'ecdsa-sk'

• Change x to IP

ssh-copy-id 'espionage724'@'x'

• ArchWiki

sudo -e '/etc/ssh/sshd_config.d/pubkey-only-custom.conf'

PasswordAuthentication no
AuthenticationMethods publickey

****

tar -cvzf ~/'Documents/'$(date +%Y-%m-%d)'-ssh-keys.tar.gz' -C ~ '.ssh' && ls ~/'Documents/'*'-ssh-keys.tar.gz' && sync

****

ls ~/'Documents/'*'-ssh-keys.tar.gz' && rm -Rf ~/'.ssh' && tar -xvzf ~/'Documents/'*'-ssh-keys.tar.gz' -C ~ '.ssh' && sync