permissions are best set as:
.ssh is 700，
authorized_keys is 600,
.ssh/config is 600
Host HOSTNAME or * HostName Port User IdentityFile ServerAliveInterval 240
ssh [-i Identitty_file] [-o options] username@host [command] StrictHostKeyChecking=no # sets check host key to false
mosh is a drop-in replacement for ssh.
mosh --server=~/bin/mosh-server user@remote-host
when copying files from remote host A to remote host B, you use
ssh-copy-id, do not manually copy id_rsa.pub to remote host.
error: key_read: uudecode may be caused by disk full.