Let say my workplace public IP is 111.222.111.222. And I have a pc inside this network, and the computer ip is 10.0.0.60. I installed a SFTP server inside this pc. And in my router, I do port forwarding to this pc for 1160. ( So that any request to 111.222.111.222 port 1160 will come to this PC )
So, when I went back to my home, I connect to internet and SFTP to my workplace PC, by using IP 111.222.111.222 and port 1160, also also the username and password I configured early, yes, I am successfully access to my workplace PC and I can add/remove file in the folder.
Now I would like to set up a VPN server in the workplace PC, I done set up it by referring to https://www.howtogeek.com/135996/how-to-create-a-vpn-server-on-your-windows-computer-without-installing-any-software/
As my understanding, If I want to connect to the VPN server from my home, I need the public IP, VPN username, and VPN password, 3 things. Now I am confuse, I no need to key in port number, If I do VPN connection with request to 111.222.111.222, how my workplace router will know this request is a VPN request to the PC? Since I didnt put any port request. I am hitting "connection failed with error 800", my client PC is window 7.
I believe that I am wrong with some configuration, because I am not able to connect to the VPN server from outside internet. But when I come back to workplace and connect the cable, I am able to make the VPN connection to the internal IP, which is 10.0.0.60.
From the website I mention just now, in the limitation there, it mention as follow: You have to expose Windows and a port for the PPTP VPN server directly to the Internet, which is not ideal from a security standpoint. You should use a strong password and consider using a port that isn’t the default port.
I believe I didnt do this part. As I didnt see anything I can do about this. Kindly advise on how to expose Windows and a port for the PPTP VPN server directly to the Internet.
