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Small business network design

By wlsc2 ·
Hi i have been given the task of desinging a very small network for what could become a common design amongst lots of my customers.
Equipment = 1 server sbs
server will be file server and mail server
no more than 10 users.
ADSL connection

could anyone advise me on the following
shall i use a static p scheme
wat private adress scheme should i use.
can anyone point me to information on how best to go about this?
i have thaught of the following.

SERVER = use DHCP - server adress 192.168.0.1 exclude the first 5 adresses for the adress range.
create a domain.
join users to domain
create a data structure ie
DATA 01 then put all data into that folder andback it up?
TO SHARE THE INTERNET across the machines i am a bit lost
do i need to create a proxy ?
i will install anti virus and firewall on server.
if i need to create a proxy server how do i do this in Small business sever?
use a switch
Connect adsl to server and server to switch?
any help would be appreciated
thanks.

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by BFilmFan In reply to Small business network de ...

I'd advise you to pick up a book on Active Directory Design (TR offers some good guides) and to watch the webcasts relating to SBS:

http://www.microsoft.com/events/series/smallbusinessserver.mspx

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by wlsc2 In reply to

Poster rated this answer.

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by zilaq In reply to Small business network de ...

I must say that your desired design is very much like what I use for departments at my work. So I will first explain what I use and why.

On the department server I have linux as operating system. It uses SQUID for proxy and tmdns for dns caching. There is a shared directory created using samba (I think this is what you mean by fileserver). This directory can also be accessed using ssh by users (I have placed a link in their home directories). Public IP addresses are mapped to the private local addresses using dynamic NAT (configured with iptables). I have a QoS policy implemented with HTB. I don't use DHCP since it is not necessary for a small number of computers and it causes unneeded traffic (also for this reason, I have disabled netbios on hosts and I have configured a static arp entry for the server).

This network design is probably very similar to what you need. I have tried to describe only the part that may be useful to you.

To sum it up: The ADSL modem should be connected directly to the server. The server should be connected to a switch with all the local computers. Static private addressing should be used (to avoid unnecessary DHCP traffic). Filesharing configured with Samba. You should have a QoS policy in place to ensure equal bandwidth for computers. Firewall can be easily implemented with iptables. There are antiviruses available for linux (like BitDefender). NAT should be configured (static or dynamic, as needed) to allow Internet access. A caching proxy (like Squid) should be in place to increase browsing speed. Optionally a DNS caching application can be installed.

Security should not be implemented only on the server. You should install firewall and antivirus software on local computers.

For mail server, you have a lot of programs available on linux. Some of them can interact automatically with antivirus programs to filter infected attachments. Also, you should consider installing a spam filter.

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by CG IT In reply to Small business network de ...

what you need to do is get yourself a copy of Microsoft Small Business Server and setup your own mini network. Nothing beats setting up your own test network in determining what works and what doesn't work in a Small Business Setting. Matter of fact, Microsoft have a MCP exam specially for designing, deploying, managing a network solution for small-medium-sized businesses. Exam 70-282.

visit http://www.microsoft.com/sbserver/

to learn about the Microsoft Small Business Products and their features.

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by sgt_shultz In reply to Small business network de ...

I agree with CG IT.
I would add this: make microsoft your home page and go there everyday and just browse around for whatever looks interesting that day.
I would also call up MS tech support for test. tell them what i want to know. I would email them similarly. Start 'testing the waters'.
My 2 cents is: with the type of question you are asking, you are not gonna use all the stuff built into SBS and it is just going to be a horrible confusion factor. buying SBS is like ready fire aim
you need exchange? probably now
you need a proxy? yeah, but that one? and you can do without it to begin
you need sql server. you will end up with 2 versions on there, watch. the one that comes with SBS and the one the accounting software vendor put on. MS products have famous reputation for working nicely together eh? such a setup would not be begging to have problems would it? i say: yes!
if you are not willing to fully research and lab learn what SBS is and what is can do, dont' get it.
you may not even need a server.
however having said all that there is my 2 cents on small networks
server win2k3
clients xp pro
dell network class hardware (optiplex)
carefully selected and configured and tested antivirus (symantec product of your choice)
and backup software
buy the box stuffed well enuf you won't have to open for 5 years
get ups'sor everything (APC brand)
you cheap out in this SBS style trend you not doing your cust any favor imho
yes, do static. especially the printers.
you probably end up with dsl router as dhcp server. choose subnet so it that gets reset to defaults, it will be on the subnet with everyghing by default
all the other answers you seek are on technet.microsoft.com and support.microsoft.com
if you want your hand held tighter than that, get linux
windows is for folks that know how to study and research

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by sgt_shultz In reply to

and always make domains, not workgroups

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by wlbowers In reply to Small business network de ...

Doing real good until I saw "i will install anti virus and firewall on server"

You need antivirus and firewall, on every machine that has a connection on the lan.

Servers and workstations.

http://www.my-etrust.com

You don't need a proxy but if you use one you can take advantage of url blocking.

Run the dsl in to a router and connect the router to the switch.

Decide on a data backup solution.

The hot thing now is NAS.

http://tinyurl.com/bj8cb

This will provide on site redundancy.Tape will provide you with off site.

Lee

You can actually use the router to assign addresses through dhcp.

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by wlbowers In reply to Small business network de ...

Doing real good until I saw "i will install anti virus and firewall on server"

You need antivirus and firewall, on every machine that has a connection on the lan.

Servers and workstations.

http://www.my-etrust.com

You don't need a proxy but if you use one you can take advantage of url blocking.

Run the dsl in to a router and connect the router to the switch.

Decide on a data backup solution.

The hot thing now is NAS.

http://tinyurl.com/bj8cb

This will provide on site redundancy.Tape will provide you with off site.

Lee

You can actually use the router to assign addresses through dhcp.

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by wlbowers In reply to Small business network de ...

Doing real good until I saw "i will install anti virus and firewall on server"

You need antivirus and firewall, on every machine that has a connection on the lan.

Servers and workstations.

http://www.my-etrust.com

You don't need a proxy but if you use one you can take advantage of url blocking.

Run the dsl in to a router and connect the router to the switch. The router can provide DHCP.

Decide on a data backup solution.

The hot thing now is NAS.

http://tinyurl.com/bj8cb

This will provide on site redundancy.Tape will provide you with off site.

Lee

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