Which analogue of Hamachi is better to use for a network of 6 computers?

Question

VPN

Good afternoon.
It is necessary to wrap a bunch of Server + 5 RDP clients in a VPN, due to constant attacks on the server from the outside. The server is looking at the Internet while the RDP port has been changed, but this does not help much. Also, the server ip is dynamic, and not always white, sometimes gray, which is not a problem. users on the same ISP, but sometimes there are problems when connecting externally.
LogMeIn Hamachi turned out to be a very friendly solution, because. it is necessary that remote users install the client on their own, while they have no knowledge of setting up networks.
Moreover, in terms of the number of clients, we fit into their free plan, but there is a restriction, the user connects to the network after the user logs into the system, and after disconnecting it is terminated.
The minimum annual subscription there is under $50, which is a bit much, it would have been $15 in our case, then they would have subscribed.
In general, I am looking for an analogue, with the same ease of installation, but cheaper.

Answer 1

Yggdrasil is an open source analog of hamachi, only better with it you can create game servers for nat, host sites for nat, host ftp for nat, use rdp while behind nat, Yggdrasil works with any program that supports ipv6 ipv4
Download here https:// yggdrasil-network.github.io/installation.html
nodes here https://github.com/yggdrasil-network/public-peers/...
Installation Create a folder yggdrasil throw it in c:\Program Files download tap-windows-9.9 .2_3 install then download yggdrasil-0.3.12-windows-amd64.exe itself rename it to yggdrasil and drop it into the yggdrasil folder
create a configuration file with the command
"C:\Program Files\Yggdrasil\yggdrasil.exe" -genconf > "C:\ Program Files\Yggdrasil\yggdrasil.conf"
add Peers nodes to config
: [
tcp://abcd:xxxxx
socks://efgh:xxxxx/abcd:xxxxx
tls://abcd:xxxxx
]
run yggdrasil
"C:\Program Files\Yggdrasil\yggdrasil.exe" -useconffile "C:\Program Files\Yggdrasil\yggdrasil.conf"
Video https://www.youtube.com/watch?v=Hp1O-4fZbOE&t=94s

Answer 2

Try exotic - ip tunnel through TOX.
Of the benefits - completely free and no central servers.
Of the minuses - it may not earn at all, it requires a tambourine.

Answer 3

a normal router on a normal white IP with a raised VPN server will solve your problem. There are a million ready-made instructions for setting up the simplest VPN (pptp) on the network to send to your users.
Well, plus for a long time already there are RDP GW and RDP WebAccess specially created to cover the ass of the RDP server from brute-force attacks and not only from them.