sid如何让别的x客户能够使用我的xwindow

[高超 <gaochao@zol.com.cn>]

在本机操作:
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gaochao -->$ xhost +
access control disabled, clients can connect from any host
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通过telnet别的机器,操作如下：
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[gaochao@server gaochao]$ export DISPLAY=192.168.10.90:0
[gaochao@server gaochao]$ gftp

Gtk-WARNING **: cannot open display: 192.168.10.90:0
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请问如何设置才能让别的x客户能够使用我的xwindow呢？

还有一问，sid怎么、在哪儿设置防火墙规则呢，好像用的不是ipchains