Linux 服务器安装telnet-server后在windows用xshell进行telnet登陆失败

linux telnet  Could not connect to '172.16.12.188' (port 23): Connection failed.

解决方法：修改 /etc/xinetd.d/telnet
service telnet
{
        disable         = yes
        flags           = REUSE
        socket_type = stream
        wait            = no
        user            = root
        server          = /usr/sbin/in.telnetd
        log_on_failure  += USERID
}将disable=yes行前加#，或者改为disable=no