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Design an infrastructure solution for hosting multiple independent severs via one leased line.

Posted on 2008-10-01
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Last Modified: 2013-11-30
Current infrastructure.

Data Server
DNS/DHCP Active Directory Server
Exchange Server  
SQL Server
Web Server
Terminal Server
10Mbit LES through a Cisco 1841 (10Mbit LES to burst to new requirement).
SonicWall 4060
6x SonicWalls TZ190 at remote sites via VPN.

What is the best solution to host multiple (forecasting 10 servers) web servers with independent domains through a single leased line? We would like a solution where each client had their own web server so we could make amendments to that server and not affect the hosting of other clients. We would prefer not to use VMware however create as much fail over as possible.        

Many thanks.
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by:Rowley
ID: 22614692
My hapennies worth:

- Separate vlans for each customer
- Implement Rate limiting on firewall uplink network swtich port

If you've only got one IP public IP address, you'll only be able to configure PAT, ergo, you wont be able to host multiple instances of any particular service without changing the ports they're running on which may well be a problem. You could perhaps get around this using a reverse proxy or some clever rewrite rules. You're screwed if you want ssl though.

hth.

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by:kdearing
ID: 22615929
I'm confused as to what your current infrastructure has to do with hosting 10 web servers.
Are you planning to host these servers at your site?
If so, I would strongly recommend a completely independent network (carved up into VLANs) with separate internet access.
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Author Comment

by:Performance_Improvements
ID: 22616243

Rowley:
We have infinite public IP addresses available.

kdearing
Explaining our current infrastructure was to aid understanding where we are and to discover what hardware we will require, secondly to query if we can utilise our SonicWall 4060 and Cisco 1841. We would like all of our traffic and hosting via a single LES if possible.

Yes the addional 10 web servers will be from our site.  
 
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by:Rowley
ID: 22617314
If you've got a few public addresses spare then, VLAN's and NAT all the way, job done.
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kdearing earned 250 total points
ID: 22618855
Can you use your current hardware? Yes.
My concern is the amount of traffic that hosting 10 web servers will bring.
You haven't mentioned wht type of internet circuit you have, but there's a fair chance your own network performance will take a serious hit.
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Author Comment

by:Performance_Improvements
ID: 22624178
I'll add further points to this query.

Can you guys advise what hardware we should be looking at? If hosting the web servers internally will inhibit our network performance despite bursting our internet bandwidth to meet the new requirements then should we progress with your initial suggestion and keep the new servers and line completely independent?

We currently have a 10Mbit LES leased line.
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Assisted Solution

by:Rowley
Rowley earned 250 total points
ID: 22624627
"My concern is the amount of traffic that hosting 10 web servers will bring."

Well...depends how much volume of traffic you're talking about and what kind of content you're serving. For example, a 10mbit line should actually be plenty bandwidth to host multiple an e-commerce type sites with tens of thousands of transactions an hour. You'd soon run out if you were serving lots of multimedia, but your average page impression might ideally be well under 100kb, even media content rich pages are should be well under 500kb, not counting compression.

 After the initial hit, its mostly http 302's all the way, plus the odd bit of dynamic content maybe.

Have you got any historical data about your current bandwidth requirements?
Do you know what kind of content it is your clients hope to serve and traffic volumes and peak times?
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