Linux SSH 連接不上

http://blog.csdn.net/cryhelyxx/article/details/46473783

在xshell下用ssh登錄遠程主機centos出現以下問題：

Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.

Connection closed by foreign host.

Type `help' to learn how to use Xshell prompt.
Xshell:\> 

之前用xshell遠程登錄centos都是可以的， 就在我重裝了openssh-server后出現這問題， 於是我猜這可能是ssh配置文件/etc/ssh/sshd.conf的問題

2. 解決方法

編輯ssh配置文件/etc/ssh/sshd.conf:

# vim /etc/ssh/sshd.conf

找到下面的X11Forwarding yes, 將其改為no或在前面加#注釋即可。

X11Forwarding設置是否允許X11轉發

#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
#X11Forwarding no
X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
#PrintMotd yes
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
#UsePrivilegeSeparation yes
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#ShowPatchLevel no
#UseDNS yes
#PidFile /var/run/sshd.pid
#MaxStartups 10:30:100
#PermitTunnel no
#ChrootDirectory none

重啟ssh服務：

# service sshd restart