how to telnet it?

how to telnet it?

My computer have run the service of telnet.but because of the firewall,i cant telnet it from other computer.
the problem is that i want to open the firewall and telnet at the same time.
Can you help me?
Thanks a lot.^^       
有呃肺事╋但我?是可以的。你催定檫了firewall?╋也檫了telnet ?。或者真你配置了 /etc/xinet.d/telnet 文件??      
setup-service中telnet是选中的,并且/ect/xinet.d/telnet中disable=no.
在以上设置不变的情况下,setup-firewall关闭可以从other computer telnet.
打开防火墙就不行了,前面的文章只讲了关闭firewall,但如何了修改配置文件使firewall开启且不影响telnet服务?      
系统默认安装的是ipchains, 你用ipchains -L看看,再改掉相关选项就可以了。