Unable to negotiate with 10.8.50.37 port 22: no matching host key type found. Their offer: ssh-rsa,ssh-dss
	高版本ssh默认不启用过时的加密算法
	可以
	ssh -oHostKeyAlgorithms=+ssh-rsa 来启用
	也可用
	-oPubkeyAcceptedKeyTypes=+ssh-rsa  
	持久化配置
	用户文件夹./ssh/config
	
	Host *
HostKeyAlgorithms +ssh-rsa
PubkeyAcceptedKeyTypes +ssh-rsa
	
	
	参考
	https://serverfault.com/questions/1092998/ssh-no-matching-host-key-type-found