如何开启https .443端口~

可以在服务器提供商的安全设置中开启，这里以阿里云服务器为例。

1、打开百度搜索“阿里云”，在展开的搜索结果中找到阿里云官网并点击进入：

2、打开自己服务器的设置中心，点击左侧导航栏上的“防火墙”按钮进入防火墙设置界面：

3、打开防火墙设置后点击界面右上角的“添加规则”按钮：

4、在弹出的窗口中将应用类型选择为“HTTPS”，然后将端口范围选择为“443”，点击“确定”按钮保存即可开启：

5、这时就可以在防火墙中看到https的443端口已经被开启了：

1、电脑点击开始界面，点击控制面板选项。

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2、进入控制面板，选择windows防火墙。

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3、进入防火墙，点击高级设置。

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4、进入高级防火墙设置，点击入站规则。

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5、进入入站规则，点击新建规则。

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6、进入新建规则，点击端口，点击下一步。

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7、在特定本地端口中输入443，点击一下步。

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8、进入操作页面，点击下一步。

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9、进入配置文件，点击下一步。

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10、最后输入名称，点击完成就可以了。

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在windows 2000/xp/server 2003服务器版本中要查看端口，可以使用netstat命令：

依次点击“开始→运行”，键入“cmd”并回车，打开命令提示符窗口。

在命令提示符状态下键入“netstat -a -n”，

按下回车键后就可以看到以数字形式显示的tcp和udp连接的端口号及状态。

开启端口，如果要开启该端口只要先在“启动类型”选择“自动”，

单击“确定”按钮，再打开该服务，

在“服务状态”中单击“启动”按钮即可启用该端口，

最后，单击“确定”按钮即可。

25端口：25端口为smtp（simple mail transfer protocol，简单邮件传输协议）服务器所开放，主要用于发送邮件，如今绝大多数邮件服务器都使用该协议。

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