How can I configure vpn server?

Dear Nas,

I have one Nethserver 6.6 —> I have one static IP ----> Static IP is natted with local private ip —> server is configured with PDC+OWNCLOUD+ Mail Server + DHCP&DNS + File Server -------> this is our Office environment ----------> i want to connect my office from my Home through VPN ---------> Now i want to configure OpenVPN in nethserver —> i have internet at my home.

SO please guide me How to configure VPN in Netherver . This all about my scenario .

Thanks
Hitesh