server for remote access / document storage 100 users max

[BackupBoy]

A Synology NAS with encrypted shared folders.

Tim

[unixman]

Not sure if this is business/professional/hobby but if you don't lots of beef, I would use Owncloud on a suitable server. Even an RPi in your house. It will be fast enough so long as only 2 or 3 people are active at the same time. Your upload speed will be a limiting factor.

[scooterscot]

How remote is remote? Within the LAN or over the Internet? Free and secure don't intersect very much.

over internet

[garnet]

Any suitable pc (in terms of CPU power) will do.

Get Linux on it with:

samba
openvpn
any encrypted file system

And yes, you will need to hook it up to at least 50 Mb/s upload channel.

[vetran]

Novell Netware 3.x. With DOS clients. Just be sure to configure enough emm386.

oh those were the days