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| 我的系统是FC4,我添加tcp 9994端口,确定后,就不能再打开安全级别了 
 就是不能运行防火墙配置了(是在x-windows下),
 
 网外的用户访问不了,所以我只能把防火墙服务给关了
 
 怎么样才能启动防火墙?进入文本介面怎么改?
 
 
 在终端下显示信息如下:
 Traceback (most recent call last):
 File "/usr/share/system-config-securitylevel/system-config-securitylevel.py", line 18, in ?
 app.stand_alone()
 File "/usr/share/system-config-securitylevel/securitylevel.py", line 453, in stand_alone
 self.readFile()
 File "/usr/share/system-config-securitylevel/securitylevel.py", line 353, in readFile
 protoname = socket.getservbyport(int(service), protocol)
 socket.error: port/proto not found
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