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Geek Culture / Static IP's

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AlexI
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Posted: 7th Nov 2006 15:56
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Hi,
if i get a broad band package with an extra static IP and I have a network with 3 computers in it, will all computers have the same static IP as the broadband connection?

So if i set up a file server on any one of the three computers in my network people will be able to access my server by my static IP? Or will two of the computers have a dynamic IP and the one that has a direct conection only have a static IP?

Here is my netowrk diagram:


Thanks,
Alex


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spooky
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Posted: 7th Nov 2006 16:24
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You will have one 'external' IP address, the one assigned to you by ISP.

Each PC inside your house gets an 'internal' IP address, either manually set or more usually by DHCP from router. This is usually in range of 192.168.0.x - the router does all the clever stuff by routing correct website downloads to correct pc, even though it is all routed via same ip address to your ISP.

If you want to access these from outside of house, then you need to tinker with port forwading in router to forward incoming traffic to the relevant pc with file server on it.

Have fun, and hopefully someone else can explain better than my pathetic attempt.

Boo!
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adr
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Posted: 7th Nov 2006 16:29
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You don't need several static IPs to provide different services. If you buy a router which is capable of NAT then you can say to it "any requests coming in on port 80 need to be forwarded to 192.168.1.2, any requests coming in on port 25 need to be forwarded to 192.168.2.3"...

Even if you were to go ahead with sharing your internet connection with the world (a process which, despite everyone's advice, seems unstoppable) you'd probably do well to buy a new ADSL Modem/router/wifi AP.


I'm superfly TNT
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Van B
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Posted: 7th Nov 2006 17:12
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I'd suggest binning that usb modem and getting a traditional RJ35/Cat5 modem to hook upto a single router. That way any PC will have internet access on your network without needing that server PC running a usb modem. USB modems are really not intended for sharing, at least not effectively. Also, you have decent control over modems connected to routers, because you get better features on networkable modems.

My ISP is telewest/blueyonder, and the modem is hooked up like this, allows things like XBox Connect really nicely, and NDS wifi works a treat. With mac address filtering you can really protect your network, security is a concearn with wireless so don't just settle for what works, WAP is damn easy to get working and just as easy to crack.

''Stick that in your text and scroll it!.''
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Nicholas Thompson
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Posted: 7th Nov 2006 17:16
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You also want to be careful you don't annoy your ISP (they don't like people hosting sites at home and I'd imagine they're like DNS even less) otherwise they might do one of a few things:
1) Cancel your contract thus leaving you without internet
2) Force you to upgrade to a business connection which does allow these things - but it also allows you to pay them about 10x more a month
3) Unlikely, but they might do you for breach of T&C.

Also - be careful with your DNS server if you put it live on the web - you could reap havoc on you ISP's network if you get it all wrong.

[center]
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Zappo
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Posted: 7th Nov 2006 17:49
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Ditto to all of the above. I bought an ADSL router (i.e. a router with a built-in ADSL modem) for about £35 two years ago so they will be even cheaper now. It does NAT (network address translation) no problem, is very secure and easy to configure through a nice Web interface. Best of all you won't need to have your main PC on all the time in order for your other machines to connect to the Net.
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spooky
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Posted: 7th Nov 2006 19:41
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Yeah, definelty get rid of that USB modem.

Ideally get an all in one box that contains a hub, router, firewall, ADSL modem and wireless connection. I use a netgear one and it makes things so much easier. As Zappo says, you then don't need a pc powered on all the time to act as the gateway to the net.

Boo!
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Nicholas Thompson
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Posted: 7th Nov 2006 20:24
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You guys are forgetting that he wants to do this for free!

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Zappo
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Posted: 7th Nov 2006 23:32
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Perhaps two paper cups and piece of string then?
Seriously, if you are thinking about being your own Web host, let alone hosting other peoples sites, you are just gonna have to bite the bullet and break open your piggy bank. Think of it this way... if you are using Linux you have already saved yourself a huge OS license fee!
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Nicholas Thompson
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Posted: 8th Nov 2006 10:21
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Technically, you COULD do it all from home but you need to bare in mind:
You could get in trouble with your ISP. A normal home ADSL connection is intended for browsing and email, not for hosting a service. Most ISP's offer an alternative contract for hosting services and this is often much more expensive.
You'd probably need a static IP otherwise you need to keep updating your address and things end up offline for ages
You need plenty of knowledge about linux (or whatever OS you use) and how to secure it. Once you put a server on the world wide web then you constantly get attacked. Our webservers at work usually get at least 2000 brute force hack attempts on SSH alone.

My advice - and for the very last time:
1) Pay 123-reg a small fee to host the domain FOR you. Its very cheap and much easier.
2) Get yourself a hosted server. If you want utter control over it, get a VPS. I'm personally with A2B2 and think they're fantastic. You get your own install on a server and you can do pretty much ANYTHING you like (except host things like IRC and game servers). You get root access and you can install Apache, PHP and MySQL from RPM or by source or simply install XAMPP. Although shared, your bit is YOUR bit. I pay about £18 a month and I'm on the 256MB RAM Unmanaged Package.

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AlexI
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Posted: 8th Nov 2006 17:00 Edited at: 8th Nov 2006 17:01
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I think i might use this boroadband package "Home 1000"http://www.telivo.com/broadband-home.html and get a static IP off them.

Does anyone know a good ADSL router that i could by to do the job?

Thanks,
Alex


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Chris Franklin
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Posted: 8th Nov 2006 17:17
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linksys

My nvidia compo entry
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adr
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Posted: 8th Nov 2006 17:24 Edited at: 8th Nov 2006 17:24
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I don't like Linksys to be honest - I've had one of their routers before and the RJ45 ports just died one day. They seem to be cheap and cheerful without the cheer.

My SMC Barricade ADSL/Modem/Router/Wifi AP is fantastic in comparison - very configurable and very reliable.


I'm superfly TNT
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Kentaree
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Posted: 8th Nov 2006 18:26
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Barricade's don't age well adr, one of my friends had one, and it just started falltering slowly but surely, until it had to be plugged out and back in almost 3 times a day.

Linksys's low-end stuff is cheap and crap, the higher end stuff (also known as Cisco) is great but bloody expensive. D-link is a pretty decent balance

Nephin Games
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Nicholas Thompson
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Posted: 8th Nov 2006 23:57
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I have a Linksys 54G and cant fault it!

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CattleRustler
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Posted: 9th Nov 2006 01:55
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linksys has been good to me

Its 9/11 - but its FAKE 9/11 Ts=SQRT(Df/16)
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Codelike
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Location: DBP - Scouseland
Posted: 9th Nov 2006 02:03 Edited at: 9th Nov 2006 02:07
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Quote: "I have a Linksys 54G and cant fault it!"


Seconded. WAG54G rules.

The WAG354G is the latest comparable model, AFAIK. I'm waiting for a WAG300N once 802.11n is ratified. I like the Linksys router's browser interface a lot. Very easy to get around. The firewall is very simple to configure. MAC, WPA2 & wireless are easy to setup & switch on or off as well with a decent signal throughout the (1930's semi-detatched) house. I still get a 5mb connection at the back of the garden (laptop with Belkin F5D7050), 60ft & through two walls from the transmitter.

With regard to the original question...

Static IP is for the outside world (public) side of the router. 192.168.x.x etc. are internal (private LAN) IPs. All computers on the LAN share the same public IP.

I have an XP3000+, 1.5gb DDR333, a 6600GT and I'm programming 3k text-based exe's?!
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AlexI
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Posted: 9th Nov 2006 19:26 Edited at: 9th Nov 2006 19:27
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I think this router look like it will do the job: http://www.broadbandbuyer.co.uk/Shop/MFR/Features.asp?ProductID=2210 I just have one question if i have the second windows PC or the SUSE linux pc as a webserver will i be able will it work to be avilible to the WWW?
Thanks,
Alex


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Nicholas Thompson
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Posted: 9th Nov 2006 21:18
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yes - if you setup the router correctly.

Do you have ADSL or DSL? Bear in mind, that device is a router only. If your modem has an Ethernet connection, thats ok because you can plug the modem into the router - otherwise it wont work.

If you're on ADSL - you either need a new ADSL modem with ethernet + that router you selected OR an ADSL Modem and router in one (Linksys version - you're looking at about £50 to £70 new).

If you're on DSL - you need to make sure your modem has ethernet, or speak to your ISP on how to get a cable model that'll work with their setup. I was lucky - our NTL one is USB and Ethernet.

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Chris Franklin
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Posted: 9th Nov 2006 23:20
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Same router as me great and easy to use and the extended aeiral can be removed

My nvidia compo entry
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Codelike
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Posted: 10th Nov 2006 02:18 Edited at: 10th Nov 2006 02:24
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@!hi! - no ADSL in that one you've shown us! You'd need a separate box for internet access.

All-in-one...

WAG54GS is the latest Linksys ADSL/ethernet/54g router comparable to mine (presuming you're plugging straight into a BT phone socket - DSL I don't know!).

PCWorld 90 quid.

As I said WAG300N is good (even now) & will be even better with a firmware upgrade when 802.11n is ratified. I'd suggest it as the best option for the long-term & 'U know who' just put a 50 quid cashback on the price. I think that by the January sales the price will just be the flat £100 if you're prepared to wait.


(silly long links!)

Answer to question 2.
Quick & dirty method: Open Port 80 on the router's firewall & leave it be.
Optionally, NAT to the webserver's LAN IP if it's not floating on DHCP. My router's handled XPHome, Pro, 98, MacOS8.5, Ubuntu & Kubuntu on internet & ethernet & as a test webserver on XPHome & Pro (not tested *nix though I'd expect fairly straightforward if Apache) without any problems.

Good luck!

I have an XP3000+, 1.5gb DDR333, a 6600GT and I'm programming 3k text-based exe's?!
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