解决 SSH Connection closed by foreign host 问题
Xshell 报错 :
1.有可能是IP和别人冲突，改一下IP就好了
2.也有可能是文件权限的问题。改一下：
cd /etc/ssh/ chmod 600 ssh_host_* chmod 644 *.pub
3、也有可能是防火墙的问题
/etc/init.d/iptables status //先看一下防火墙状态 chkconfig iptables off //关闭的命令
或者：
#停止firewall
systemctl stop firewalld.service
#禁止firewall开机启动
systemctl disable firewalld.service
解决 SSH Connection closed by foreign host 问题
https://blog.csdn.net/tojohnonly/article/details/79746588
https://blog.csdn.net/weixin_41585557/article/details/83895338
Connection closed by foreign host原因ip冲突及解决办法
https://blog.csdn.net/qq_37755661/article/details/79152832
也可能是这个问题
