443端口ping测试

对于443端口的ping测试，使用ping命令并不会直接测试该端口的开放情况。无论是哪个端口，只要目标IP地址可以ping通，都会有数据返回。正确的方法是使用telnet命令来测试端口的开放情况。通过telnet命令，可以尝试与目标IP的443端口建立连接。如果连接成功，则表示该端口是开放的；而如果连接失败，则表示该端口是关闭的或者被防火墙拦截。 <span class="em">1</span><span class="em">2</span><span class="em">3</span>
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