1、问题没法ssh直接链接到服务器
[C:\~]$ ssh 192.168.7.77 Connecting to 192.168.7.77:22... Connection established. To escape to local shell, press 'Ctrl+Alt+]'. Connection closing...Socket close. Connection closed by foreign host. Disconnected from remote host(192.168.7.77:22) at 16:51:19.
2、问题缘由及解决方法
sshd的配置，本身的IP地址没有加入到hosts.allow配置文件中，而hosts.deny则拒绝了除allow外的全部主机登陆。shell
解决方法：把本身的IP地址加入到hosts.allow文件中，并重启sshd服务。服务器
# ll /etc/hosts.* -rw-r--r-- 1 root root 767 Jan 2 2017 /etc/hosts.allow -rw-r--r-- 1 root root 888 Aug 15 2016 /etc/hosts.deny # grep -Ev '#' /etc/hosts.deny sshd:all # grep -Ev '#' /etc/hosts.allow sshd:192.168.7.100/255.255.255.255