禁用X 在tcp 6000 上的监听

在kde3/share/config/kdm/kdmrc或gdm/gdm.conf文件中有关于XDMCP的配置
kde:

    ServerArgsLocal=
    ServerCmd=/usr/X11R6/bin/X
把ServerArgsLocal参数修改为
    ServerArgsLocal=-nolisten tcp
    ServerCmd=/usr/X11R6/bin/X

gdm:

     command=/usr/X11R6/bin/X
 把它修改为
     command=/usr/X11R6/bin/X -nolisten tcp

现在重启kdm或gdm。用netstat或nmap看看：

root@jun# netstat -tlunp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
udp        0      0 0.0.0.0:33732           0.0.0.0:*                           9507/eva
udp        0      0 0.0.0.0:33733           0.0.0.0:*                           9507/eva

或

root@jun# nmap -sT 127.0.0.1

Starting nmap 3.93 ( http://www.insecure.org/nmap/ ) at 2006-05-15 22:24 CST
All 1480 scanned ports on localhostcat (127.0.0.1) are: closed

Nmap finished: 1 IP address (1 host up) scanned in 0.193 seconds

是不是没有了 6000 啊。