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I can't access my server in my LAN by using my external IP address. I have no idea why. Hosts doesn't seem to be able to fix it.

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closed as not a real question by Canadian Luke, Tog, 8088, Dave Rook, Paul Mar 5 '13 at 13:04

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

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You give no details of your config or what were your own efforts. It's not likely that anybody can / wants to solve this question in its current form. –  mpy Mar 2 '13 at 23:19
    
What have you tried? You'd need to port forward to access it (router configuration). If you're trying SSH, forward port 22 to your server's IP (static tends to be best). You could SSH using other ports of course, most commonly 2222. –  nerdwaller Mar 3 '13 at 0:56

2 Answers 2

Check that your ISP isn't blocking whatever ports you're checking. Many ISPs (e.g., Comcast and others) have at times blocked ports they considered "commercial" on consumer residential accounts. Ports often blocked include 80 (http), 443 (https) and 25 (smtp).

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I'm reluctant to believe this is practiced in 2013. That's really shocking! –  Ярослав Рахматуллин Mar 5 '13 at 6:32
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Oh, yes, it still happens. My son ran into this with Comcast in California just a couple weeks ago, which is why it was on my mind. Last I heard, they were going to give him a new modem with the block removed. –  Nicole Hamilton Mar 5 '13 at 7:43
    
@ЯрославРахматуллин Yeah, we've had so many issues with things like this and it wastes hours of time. Great suggestion Nicole +1 –  Dave Rook Mar 5 '13 at 8:50
    
It's borderline censorship. One would think that such a practice would be outlawed in the land of the free. –  Ярослав Рахматуллин Mar 5 '13 at 10:06
    
@ЯрославРахматуллин They just don't want you running web and mail servers unless you upgrade and pay for a commercial account. –  Nicole Hamilton Mar 5 '13 at 15:07

There is a NAT on your router more likely than not. You need to employ port forwarding in order to make services behind a NAT visible to the outside on the external IP address of your router. Portforward.com comes to mind.

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