Answer / ossoell

VPN (Virtual Private Network)

A virtual private network (VPN) is a private network that
makes use of a public network (such as the Internet), while
maintaining security and privacy through encryption and
security procedures.
VPN's give companies an alternative to leasing an
expensive, dedicated private connection from one office to
another. Many businesses are using VPN on their servers to
allow their employees to connect to their server from home.

Answer / skh

you need to open the respective port of VPN box like e.g if you are using SSL VPN then you have to NAT your router to 443 then you have to open port 443 on firewall and likewise.
hope that answer your question..

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