We are helping a client 'test the market' for website hosting (they have identified a niche) and are curious what sort of firewall to invest in as the project is on a shoe string right now (with serious investment coming if this trial works out).
We have a single server, space in a data center with two or three static IP addreses but the ISP is insistent we provide our own firewall. We're not concerned with VPN connectivity, fibre ports or any high end stuff but it needs to be able to handle the traffic of mail server and a few websites, blocking all ports bar the few standard web hosting services (FTP, HTTP, HTTPS, SMTP, POP, IMAP, etc).
Does anyone have any suggestions for a suitable firewall model?
Thanks for any and all help!