I am trying to use SQL in more or less the exact same way as we did in pset7, but whenever I try and access phpmyadmin it tells me the web page is not available. I already checked my chmods, apache, whether or not the server was running, and config.json. The error page gives the following details about the issue:

"The server at final-project-cs50-sarahdunn.c9users.ioc9.io can't be found, because the DNS lookup failed. DNS is the network service that translates a website's name to its Internet address. This error is most often caused by having no connection to the Internet or a misconfigured network. It can also be caused by an unresponsive DNS server or a firewall preventing Google Chrome from accessing the network."

Any ideas about what could be going wrong and what I could do to fix it? Thanks!

1 Answer 1


It looks like you're working from the IDE and not the appliance. I had a similar problem. It seemed like the URL to use that was returned by the server when I started it was wrong. I went back and restarted pset7, and captured the URL that worked there, shut down the server for pset7 and restarted it to use my project directory, and then just changed the suffix (the part after the trailing slash / ). Your URL may vary, but try this:


Note that your user id may not be exactly what you expect. It may be something different, but very similar.

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