Question by Dan F: Why do my ports need to be forwarded to a private IP address?
I’ve been messing with my router, and I was wondering why I had to put my in local IP (192.168.#.#) when port forwarding for it to work at all?

For example, I forwarded some ports so I could host an online game. Does it only forward those ports for my computer? Will other computers on the same router be able to use them for hosting or will we have to change the ip to their local address?

Best answer:

Answer by Ty H
When you try to connect to a computer without being local when the port gets to the router the router then has to forward it to a computer, with the exception of a static IP address, without the router will just disconnect them, then if you forward it then whenever anyone connects on that port it will forward to the selected computer

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Question by ADV: What is the average price for 1 static IP address?
…and I am trying to start up a web hosting business so could I host multiple websites with 1 static ip address. Or would I need 1 for each domain? Thanks in advance!

Best answer:

Answer by davisdlrch
it would cost about 60-70 dollars a month for dsl; to get a static ip address, you have talk to your internet service provider to get one, or switch providers and ask for a static ip.

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Question by : 1 dynamic IP address, 2 virtual hosts on 1 box…can it be done?
Hi guys,

I know its a long shot asking here but hopefully someone (or some people) would be able to help me in setting up what i am trying to do.

I am setting up a web server which will host multiple websites using Apache web server 2 by using Virtual Hosts.

The server has its own internal ip address assigned (192.168.0.100) and each new website is assigned its own internal address (I currently have 2 sites: Frostnet.co.cc @ 192.168.0.102 and sg.webhop.net @ 192.168.0.101).

I am using my home internet to do this which is provided by sky and as they will not let me have a static IP address which would make this allot easier, I am having to use Dynamic DNS (which is providing the address of sg.webhop.net which is already a site on the box)

The box is also providing DNS services for the sites on the box.
Everything required is ported forward through the sky router (http, ftp, DNS, email, ssh) which works fine.

I can access http://sg.webhop.net which brings the corect web page up but when I access http://www.frostnet.co.cc it just takes too long to respond.

How can I setup this box to host multiple websites on 1 external IP address which is contstantly changing BUT assigned to sg.webhop.net through Dynamic DNS?
I am also using .co.cc for my frostnet domain name so I have pointed the DNS at the box on my network (sg.webhop.net) but it still dont work.

Any Ideas?

Thanks guys
Sorry forgot to add i am using a Linux system (CentOS 4.8)
Also after further testing if i ping www.frostnet.co.cc it comes back with the internal address of my home network of sg.webhop.net instead of the internal address of frostnet. This is pinging from a remote network as i ma currently at work.

Best answer:

Answer by Gardner
I host 4 web sites on my home server using a dynamic IP. My domains are registered through a dynamic DNS company, I have some software that updates all 4 domains at the same time when my IP changes.

I have not tried to do it using Virtual Hosts though. I do it with IIS.

If IIS can do it I’m sure Apache can, I’m just not sure how since I don’t use it.

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Question by : How do you know the IP’s Network, Host, and Broadcast Address?
Using this IP address 192.168.1.100/16 what is the network, host, and broadcast address? Please explain. Thanks!

Best answer:

Answer by Andrew S
The host address is the IP address as given, 192.168.1.100. For the other addresses, re-express that IP address in binary form:

11000000.10101000.00000001.01100100

The /16 tells you the first sixteen bits of the address form the network mask, so keep those sixteen bits and discard the others:

11000000.10101000.00000000.00000000

Convert that back to decimal to give the network address in normal form:

192.168.0.0

For the broadcast address repeat the process but set all the bits after the network portion to 1:

11000000.10101000.11111111.11111111

Convert that to decimal to give the broadcast address in normal form:

192.168.255.255

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Small Business Hosting Ideas | What’s My IP Address – by NickolaDavisBe (Nickolas Davis)

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