I have two offices in two different cities. One of them is the HQ and has a file server. I would like to be able to access the file server from the secondary location as if I was in the HQ without having to use the FTP protocol. I also have several tools that I developed which access other computer using their local IPs, and I would like them to work as well.
The solution I thought about was installing a VPN network for the company, but I don't know if it is the optimal solution for this setup.
I am quite limited in terms of capital to invest and I would like to know what it requires... Do I need to have some kind of server? I know that Windows XP can connect to a VPN, but I guess this is only the easiest solution and I thought there might be better tools.
My university used a VPN, apparently powered by Cisco so I wanted to know if that was a good idea in your opinion.