I apologize if this has already been asked. Is there a resource/video describing how to use tools such as: traceroute, nc, netcat, curl, etc... for troubleshooting potential networking issues? If not I think it could be helpful. For example, a customer calls up and tells you they cannot SSH into a server. Is the problem a firewall on their end, ISP issue, etc...
Network Troubleshooting Commands/Tools
Within the content of our shows, we tend to use some of the command line utilities built into the technology we're using. But it may be worth taking a look into the possibility of producing a ITProTV Skills show on it. I'll add this to our show request list.
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Cool beans, thanks for the update.