On Fri, 2007-05-25 at 14:38 -0500, Scott Berry wrote: > As far as I can see all the firewalls are off in Linux and I have > forwarded port 80 for apache but when I go to > http://pilotalk.dyndns.biz I get the following: > Problem loading page > > Unable to connect > Firefox can't establish a connection to the server at pilotalk.dyndns.biz. > list of 3 items > • The site could be temporarily unavailable or too busy. Try again in a > few moments. > • If you are unable to load any pages, check your computer's network > connection. > • If your computer or network is protected by a firewall or proxy, make > sure that Firefox is permitted to access the Web. If you're testing on the same machine as runs the server, and that domain name resolves to a public IP, you may not be able to connect. You're asking an internal connection to go out on the wire and come back again. Whether that works depends on how your entire network works (computer, modem/router, firewalling, etc.). Likewise for testing from another PC within your LAN. My firewall blocks connection attempts that try to connect to public IPs using a private IP address, it's the sort of thing that a spoofing attack might do. First, you'd test with a browser on the server, trying to browse to: http://127.0.0.1/ If that doesn't work, you've got to work out whether your server is running, your firewall isn't blocking things, or if you have a proxy configured in your web browser which is trying to use an outside proxy. If that works, move onto another test: Such as, browsing to the server from another PC within your LAN, using the IP address of the server. e.g. http://192.168.1.1/ (or whatever your server's address actually is). If that doesn't work, the same issues outlined in the prior paragraph apply. If it does work, then the issues would seem to lay with your server's firewall, modem/router, or your ISP (some block port 80). You need to use something outside of your LAN to test the public behaviour of your web server. That could be a friend on another ISP, or you can make use of one of the HTML validators on the web. At this stage, you'd be concerned about it managing to connect. Later, you can worry about any messages about any HTML authoring errors. e.g. http://validator.w3.org/check?uri=http%3A%2F%2Fpilotalk.dyndns.biz is a link that will use the W3C HTML validator to check your website. See <http://validator.w3.org/ In my test, just now, it came back with a 500 error: --- begin paste --- Sorry! This document can not be checked. I got the following unexpected response when trying to retrieve <http://pilotalk.dyndns.biz/>: 500 Server closed connection without sending any data back If you made recent changes to your domain name (DNS) configuration, you may also want to check that your domain records are correct, or ask your hosting company to do so. --- end paste --- That indicates a webserver configuration error (500 errors are server errors). That could be that you've got an error with your Apache configuration. One that doesn't stop the server from starting up, but does stop it from serving files. Or, it could be that your ISP has something intercepting connections to your webserver, and it's returning that. Or that dyndns intercepts things, similarly. Or that the validator webserver had an error, at that time. I get no response, so I suspect the 500 error was the validator stuffing up when it didn't get a response. The WDG HTMl validator, available from http://www.htmlhelp.com/tools/validator/ had similar sort of results, but with less warnings about why. --- begin paste --- Error retrieving http://pilotalk.dyndns.biz/: Server closed connection without sending any data back --- end paste --- Checks on your domain name seem to be okay. In as much as that they point to a real IP, but I don't know if it's your current IP. The dig tool shows your IP as currently being: 67.54.156.245 [tim@serge ~]$ dig +noall +answer pilotalk.dyndns.biz pilotalk.dyndns.biz. 60 IN A 67.54.156.245 -- (This box runs FC6, my others run FC4 & FC5, in case that's important to the thread.) Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists.
