Windows服务器如何查看服务器端口是否开放？扬州高防服务器103.216.155.**

最新推荐文章于 2025-03-07 22:40:53 发布

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最新推荐文章于 2025-03-07 22:40:53 发布

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本文介绍了如何在Windows环境中使用telnet命令检测服务器端口是否开放。通过检查telnet功能是否安装，然后安装并使用telnet客户端，连接目标IP和端口来判断端口是否开放。

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在工作中处理服务器故障问题的时候，经常需要检测一下Windows的服务器业务端口是否开放，是否能正常与外面通讯。今天飞飞与大家分享一下如何在windows环境下检测服务器端口是否开放，方法很简单。

1、以Windows 2008系统为例，先检查是否有安装telnet功能，有的服务器默认没有telnet功能，运行-cmd-回车-输入telnet，若是提示不是内部或是外部命令，也不是可运行的程序，即表示没有安装telnet

所以我们就需要先安装telnet，控制面板-程序-打开或关闭windows功能

3、进入到服务器管理器，双击“功能”，在右边的摘要可以看到“添加功能”，点击添加

4、在选择功能向导这里，勾选“Telnet服务器”和“Telnet客户端”，勾选后下一步，直至安装完成

telnet安装好后，再次打开运行-cmd-输入telnet命令：

telnet IP（或是域名）端口

若是端口未开放，显示如下：无法打开到主机的连接，端口**连接失败

若是输入命令后有反应，跳转到如下这个界面了，说明端口是开放的

现在你知道如何查看端口是否有开放吗？

高防护段（TCP_SYN,ACK,RST）展示：

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