SSH Login
Provider password for ssh
sshpass -p '<password>' ssh <user>@<host>
Login with identity file
ssh -i ~/.ssh/<file> <user>@<host>
ssh -i ~/.ssh/<file> -o IdentitiesOnly=yes <user>@<host>
Manage login to unknown hosts
ssh -o StrictHostKeyChecking=no <user>@<host>
For ssh-dss algorithm (legacy version)
ssh -o HostKeyAlgorithms=+ssh-dss <user>@<host>
Use password authentication
ssh -o PreferredAuthentications=password <user>@<host>
Using key exchange algorithm
ssh -o KexAlgorithms=curve25519-sha256 <user>@<host>