试题内容
在Linux操作系统中,可以通过iptables命令来配置内核中集成的防火墙。若在配置脚本中添加iptables命令:
$IPT -t nat –A PREROUTING –p top –s 0/0 –d 61.129.3.88—dport 80 –j DNAT –to-dest 192.168.0.18,其作用是 ( ) 。
A、将对192.168.0.18的80端口的访问转发到内网61.129.3.88主机上
B、将对61.129.3.88的80端口的访问转发到内网192.168.0.18主机上
C、将192.168.0.18的80端口映射到内网61.129.3.88的80端口上
D、禁止对61.129.3.88的80端口的访问
软题库参考答案:B(仅供参考)
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