Fedora Core 3/4下关于SSH转发X的问题！

其实这个不是Fedora的问题，而是OpenSSH 3.8及其以后版本的特征更新所致，具体说法就是X11区分为Trusted和Untrusted，默认为Untrusted模式，客户端需要在~/.ssh/config或/etc/ssh/ssh_config文件中指明ForwardX11Trusted yes选项启用安全的X11转发，或者原来的ssh -X host命令需要改为ssh -Y host来执行，以达到同样的效果。
切记：最简单的X11通过SSH转发设置DISPLAY变量为localhost：10.，0因为DISPLAY变量的设置错误也可以导致X程序直接寻找X Server而非通过SSH 隧道转发。
关于SSH的更新，Fedora的Release Notes里都有比较详细的说明，可以参考。

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