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Verify web server availability using portqry

Say you have an IIS7 Web server somewhere on your Intranet, and users start calling Helpdesk complaining that "our internal website is down." What can you do to verify if this is really the case?

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I like your solution;

I like your solution; however it is limited to only the windows world, which is not the entire web world.
When users complain to me that a Web server is down I use good old TELNET. The telnet command always works, just type
telnet webserver.domain.com 80
If you get a connected response you know a port listener is running. You can also type in http and hit return and the web server will respond with error information, again confirming that the web server is running.
This solution works on all operating systems and all web servers and is not hampered by a firewall unless that was the original problem.
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