I'll give you my suggestions based on a mini version of the configuration I've been using for a couple years (except for the dropbox part which I just started using this year). This is only for Windows but most works on Mac and Linux...

1 Windows Server for Authentication, DHCP and DNS. Unless your users will be off campus for extended periods of time (30+ days) you don't need to worry about a VPN (since the local system will authenticate their account disconnected)

Dropbox for Teams on all systems. On Windows systems you can move the Desktop, Pictures, and Documents folders right into the Dropbox folder to sync and backup all files (Box.Net is an option with more features but I had massive problems with it to the tune of 80% of users and the company didn't seem to care)

Faronics DeepFreeze is a program that freezes the system files for Windows systems. By creating a separate partition for files you can freeze the whole system and avoid problems (just create a files partition and move dropbox and the users files to there). You can also set times for unfreezing for updates (I set it for Sunday at 1am and have the auto updates run at the same time). Macs and Linux can ususally take care of themselves on the security front

Patch Management with GFI Languard is cheap and doesn't require a whole infrastructure to work with. For updating software you can used a Powershell script and a shared "Updates" folder in dropbox to distribute MSI files

On E-mail I use Rackspace's hosted exchange because my users were used to an Exchange server. But you could just as easily get by with Google Apps.

AntiVirus I just use Trend Micro's corporate version but it does have a fairly small server footprint. It could easily run on the one Windows server you have.

Hope it helps. Feel free to e-mail if you have questions

GFI languard looks really good, it all adds up though, but looks good pricewise as well.

Thanks for the tip!

1. Google Apps for Business - No onsite hardware - Calendars with sharing - Webmail / imap access - Can be a central point of administering users, if the other apps integrate to Google Apps (e.g. the Apps from Apps Marketplace) - Supports Windows, OS X and Linux - All machines are fully usable outside the office

Now you are almost there. Forget that MS stack. It's costly, vendor-lockin, and feels like a thing from a past.

2. Central Management of Users with Single Sign-on capabilities. - Look at http://www.okta.com/ and http://www.symplified.com/

3. Network File Sharing - Google Docs (and there is a change that Google finally introduces Google Drive / Google Files)

If that is not enough, then look at:

- Egnyte: http://www.egnyte.com/ (Hybrid solution, Dropbox-like sync-client, Client Backup, Local office sync server / NAS, FTP (includes secure connection) access, WebDAV access with Drive mapping capability, browser access etc.) - Box: http://box.com/ - Dropbox for Teams: http://www.dropbox.com/teams

If you are interested in backups, look at: - Backblaze: http://www.backblaze.com/

Remember that with Google Apps, you already get very nice features, like: - Single sign-on on every Google's service (for example: Google+, Google Voice, and you get services like Postini, Mobile synchronization with support for Active Sync, etc.)

If you are going to MS stack, you are going to tie your hands. It's easy to implement MS stack, but it's damn hard to exit their system.

This have been my intention, but the filesharing is becoming more and more frustrating with google. I've looked at third-party solutions to the missing webdav/drivemapping part of google docs but it doesnt seem good enough.

Also, I'll miss out on security policies which can be nice. As it looks now, we will go with a minimum active directory machine handling local filesharing and logins and gpos.

I hope I'll be able to keep away from sharepoint and exchange, but i'll just wait and see.

You don't mention security (1) or compliance. I'm guessing these don't feature? What does "file sharing" mean to you (could SkyDrive do it, or cloud-based SharePoint)? Speaking of SharePoint, have you considered Office 365?

I know it's fashionable to do everything in the cloud these days, but my personal preference is to have control over my digital assets, so I like to keep everything(!) in-house. For 20-50 -strong team, AD/Exchange/SharePoint/ForeFront setup would be mostly accepting defaults (2), and keeping everything running won't take much effort.

1). An AD is not neccessarily a bad thing. You could create accounts locally and push them into Office 365 automatically (ditto for Exchange accounts). You could use DirectAccess to meet the remote use requirement, although someone who knows more about the Linux/Mac world would need to comment on whether that will with DirectAccess.

2). Depends on how far you want to go with your file share - you could spend ages on an information architecture, if you're so inclined/have compliance requirements.

Good point about security, as for compliance the business is waiting for another legal case which will make it more clear.

The most important thing about the fileshare is for it to be a network attachable storage, mounted as a drive on the computer, so all software can be used on files. We have some pretty bizarre ones, and also utilizes a lot of images so thumbnails are a must for it.

You probably want to get a real live sysadmin to set this up, rather than DIY. Best practices go a real long way in getting the environment healthy and compatible with whatever stuff you want to add later (been there, done that...)

With 20+ people you definitely want centralized authentication.

I'd go with Windows for this setup. - Relatively few boxes needed. 2 for AD, it does your DNS and DHCP stuff. A 3rd box for your Exchange (I have 0 experience with Exchange, I suppose you can always keep your google apps), and if you want to do file serving in house, 1-2 boxes.

- Monitor clients with WSUS. It's easy to set up, and it'll tell you which clients aren't up to date. There are other paid solutions available, but this one is free.

- Push software with GPO so long as you like your .msi's or .bat scripts.

- Permissions get messy with shared Windows and Unix files. Separate the shares, or get some other service to handle it for you (the previously mentioned Dropbox)

- Lots of Windows consultants available if stuff breaks.

You can always separate out services later to Unix hosts if needed. DNS is kind of tricky because you'll either have to manually add all your Linux boxes, add certificates to the machines, or turn off secure updates in AD. Or you're stuck running SMB on all your hosts to get them in to the domain.

Frankly I think the easiest solution is all *Nix or all Windows. Anything else eventually runs in to compatibility issues because whatever tool you're running just isn't cut out for multiplatform. Or if it is multiplatform, it probably doesn't integrate as well as the single platform solutions.

Using machines outside the office - I'd guess remote desktop or something through a VPN. I'm not familiar with this because at my last job all the Linux hosts were on public IP space, so you could SSH in to it so long as you were in the allowed hosts.

Yes, I will let someone else experienced do this, I'll be buying it and setting requirements though, thats why I'm trying to get a feeling of the directions.

I am the IT guy for an office right in the middle - 30 users. As much as most people don't want to admit it, Microsoft owns this space, and Microsoft small business server paired with Office is an excellent solution here. Sure, you need a dedicated server, but SBS is very wizard based almost to the point where a receptionist can administer it. Sharepoint is the logical next step, a step we're going to take this year, probably.

Specifically, look at MS Small Business server, which includes about 30 user licenses, exchange server, file server, dns active directory and just about anything else you need, and is made to run on one server (most versions include a second server license too, for virtualization or backup).

The microsoft stack does work quite well, but usually for 50+ staff. For less than 50 the cost of administration becomes a disproportional overhead.

I take vendor lock-in with a grain of salt... if the solution works well, the lock-in (almost) doesn't matter. When it comes to mission critical business systems, most companies have vendor lock-in, whether it's with Microsoft, Google or some other company.

I think most startups stick with Google Apps. For network filesharing have you tried Dropbox? If large files are an issue - you will need to setup a fileserver in your office something as simple as a samba server could do the trick.

You could also trying to get an invite for AeroFS.

Whats the big hurdle with administration? It sounds easy to add user, is there anything else? Or is it the administration of the entire solution that is timeconsuming?

I looked at dropbox teams, but that felt expensive at the time and didnt offer any good groupwide sharing capabilities. But price-wise it will probably be cheaper than the proposed ms-setup.

There's nothing inherently wrong with Windows Server and Exchange, which will give you just about everything you ask for. You probably wouldn't need Sharepoint, which is a cash cow for implementers.

No, nothing wrong perhaps, I just kind of wished the world gotten further. :)

Google Apps and either Dropbox/Box.net (Dropbox is cheaper, Box.net has more features). I have this setup in production for ~68 users, some who are in the office, but most who are mobile.

Seems like with network filesharing you'd be happy with Google Apps. So what's keeping you from just buying filesharing from another vendor?

Not much, I've implemented a temporary solution for that, but would like something centrally managed which utilizes the same accounts etc. And the current setup doesnt give us any domain controller(for machines). DOH! Sounds like I just have to give up and get that boring ms-setup. :)

With ~50 users, you don't need central management in my opinion. Yes, from sysadmin perspective it would be nice and professional, but on the other hand, it costs, and adds administration. Is it worth it? I'm not sure.

I really hope, that there were a good alternative for MS setup. Currently I feel that only a network file sharing, centralized directory for users (AD), and printer sharing are about the only things a little bit problematic without using MS stack. It's shame that so few file sharing / collaboration services integrate with Google authentication.

I agree, perhaps not worth the hassle. Although I stated it as a requirement because I feel its sane to expect that would "just work", but apparently not.

I was thinking about some sort of auth-proxy for authenticating against google apps, and in case google apps doesnt respond it would use whatever happened last time, as a cache. And that proxy could be used for PAM, network login, filesharing etc. But its not in the scope for this project to develop that.

What OS are you using for the clients?