Most UTM (unified threat management) Firewall devices worth their price tag include a VPN server as part of the mix. In my experience, a UTM is an excellent choice for a small office and/or most smaller enterprises as several of the higher-end devices scale quite far. For a larger, corporate network though, while a UTM (or two or three) might be part of the security mix, larger dedicated components often make more sense.

That being said, if you have a UTM, and it includes a VPN solution, you may be considering taking advantage of this for remote network access. While I wouldn’t necessarily advise against doing this, before going to far down that road I would tell you to look into deploying OpenVPN Access Server instead with Google Authenticator. Here is why…
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