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I have a static ip address granted by my ISP. I have a small home server (Ubuntu server+ Apache) and I maintain a website which used to be reachable by domain name and by ip address. Suddenly I realized I can't reach my website- instead of a page there is a pop up window asking for my DSL router username and password. What could be the possible reason?

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migrated from serverfault.com Apr 7 '11 at 10:19

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Are you attempting to access it from inside or outside your own LAN? (It does not matter if you're using a public address. What matters is where you are connecting from.) –  grawity Apr 7 '11 at 14:39
    
If you haven't fixed this yet, I'd fix immediately. I'd turn off WAN configuration in your router, this is a major security hole. –  Rich Homolka Jun 13 '11 at 22:51

1 Answer 1

You need to forward the port(s) to your webserver (80) to the correct IP within your LAN.

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The ports are forwarded (actually the whole system worked for many months, I did not change anything, it just stopped working). –  Michael Apr 7 '11 at 10:19
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You need to make sure that management of your router from outside is turned off. A recent firmware update may have changed the setting? –  Majenko Apr 7 '11 at 10:49

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