Serving HTTP with floating IP
Hello Experts
Is there a way to serve low-levels of traffic, reliably, from my W2K server machine at home, through my Comcast cable modem, even though I have a floating IP address? I use a D-Link router/firewall. Does floating IP mean no chance of serving?
Is there a way to serve low-levels of traffic, reliably, from my W2K server machine at home, through my Comcast cable modem, even though I have a floating IP address? I use a D-Link router/firewall. Does floating IP mean no chance of serving?
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Incoming traffic. Lots of ISP's block incoming port 80 traffic to prevent their customers from setting up web servers (and port 25 to prevent SMTP servers, etc.) This doesn't affect normal browsing.
ASKER
Does a browser have to send out request traffic over port 80?
ASKER
And no one would be able to send an e-mail if they blocked 25.
If the action comes from inside the firewall, it's not a problem. If you put a firewall on your connection or turn on your WinXP firewall, you will still be able to browse the web or send & receive email without a problem. That doesn't mean those ports are open on the firewall. :)
ASKER
Really??? This doesn't seem possible! You mean that 80 is blocked between the firewall and my computer? But man, HTTP is port 80. When I block it, I don't get no internet. Are you sure this right??
Absolutely certain. I have a setup similar to the one you're talking about, ie. a web server at home. I had to open port 80 in my firewall to allow access to my web server. Prior to that, however, I was able to access the web without a problem.
However, I should clarify that you are right in that it does depend on what kind of firewall you're using. There are plenty of them that you can configure to block outgoing traffic as well, but most consumer-targetted firewalls don't. They allow outgoing traffic and if it something like a browser requesting a web page, they allow the return traffic as well.
However, I should clarify that you are right in that it does depend on what kind of firewall you're using. There are plenty of them that you can configure to block outgoing traffic as well, but most consumer-targetted firewalls don't. They allow outgoing traffic and if it something like a browser requesting a web page, they allow the return traffic as well.
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