要登录ssh我这样做：
ssh -i ~/.ssh/kp1.pem ubuntu@ec2-xxxx.com
我尝试了所有这些mosh：
mosh --ssh='ssh -i ~/.ssh/kp1.pem ubuntu@ec2-xxxx.com'
mosh -i ~/.ssh/kp1.pem ubuntu@ec2-xxxx.com
但我收到错误：
/usr/bin/mosh: could not get canonical name for /home/$USER/.ssh/kp1.pem: Name or service not known
ssh_exchange_identification: Connection closed by remote host
/usr/bin/mosh: Did not find remote IP address (is SSH ProxyCommand disabled?).