如何在Linux中检查已建立的域
我的目的是检查是否正在从运行Linux的系统访问域，如果访问该域，我需要运行命令。
我已经使用crontab实现了这一点。我写了一个小脚本，如果要访问域，请说'https://www.youtube.com/'，我运行了一个命令，将通知发送给系统上的用户，并且每分钟运行此脚本使用cron。这主要用于父母控制。除了我们查看是否访问了一个域，我还弄清楚了一切。我尝试阅读netstat命令文档，但在那里找不到任何东西。我只需要一个命令，该命令可以检查该特定秒的特定网站/域是否正在访问。提前致谢！
My aim is to check if a domain is being accessed from a system running Linux, and if it is being accessed, I need to run a command.
I have accomplished this using crontab. I have written a little script where if a domain is being accessed, say 'https://www.youtube.com/', I run a command to send a notification to the user on the system, and this script is run every minute using cron. This is mainly for parental control. I have everything figured out except for the part where we see if a domain is being accessed. I tried reading the netstat command documentation but I couldn't find anything there. I just need a command which can check if a specific website/domain is being accessed at that particular second. Thanks in advance!
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