FREE VPN to office from Outside

I want to have a free VPN connection to my office from outside this will be for temporary basis as my Juniper SA2500 device is down.

can you please suggest free VPN connection to my office from outside - Need to access the fileserver
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SoulwinnerIT ManagerAsked:
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QlemoBatchelor, Developer and EE Topic AdvisorCommented:
If your SA is down, how do you connect to Internet from office? The device might offer a VPN option.
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SoulwinnerIT ManagerAuthor Commented:
SA was used for SSL connection for users out of the office, i have internet in my office on other router.
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SoulwinnerIT ManagerAuthor Commented:
i have internet on both the ends, need only VPN software to get the outside world to connect to my office
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QlemoBatchelor, Developer and EE Topic AdvisorCommented:
You need to support something other users could utilize too, or is just for you?
My usual recommendation would be to set up OpenVPN with self-signed certificates on both ends. That does not require one of the VPN cloud services ...
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SoulwinnerIT ManagerAuthor Commented:
I want my site users to access the file server and intrannet page, even a one month trial will do.
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SoulwinnerIT ManagerAuthor Commented:
can you please give me the link for openVPN
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QlemoBatchelor, Developer and EE Topic AdvisorCommented:
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nociSoftware EngineerCommented:
OpenVPN is an options,
Another is IPSEC or IPSEC combined with L2TP.

Dont' use PPTP is that doesn't effectively encrpt or secure anything and has been broken  in concept for >20 years, and broken in real time about 10 years.
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arnoldCommented:
What resources do you have. Port forwarding as noci referenced, openvpn, IPSec,
Info on router capabilities, whether it can terminate the VPN connection (IPSec,l2tp over IPSec)
Or have an internal server serve as the VPN end point, effectively, this server will serve as a rourer for the VPN connected user/s.

What is wrong with the SA, power issues?
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SoulwinnerIT ManagerAuthor Commented:
yes SA is down with power issue.
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SoulwinnerIT ManagerAuthor Commented:
i want a temporary quick solution, whats the best guys you can suggest ? only for couple of weeks
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arnoldCommented:
There is no best there is what is best for you based on which is available to you.
i.e. if your remaining router supports ipsec based remote VPN, that could be the best.
openVPN requires a server on which the end point will run and the openvpn client on the system from which you will be connecting....
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QlemoBatchelor, Developer and EE Topic AdvisorCommented:
You are not giving out enough info to allow a specific suggestion. But there is no easy solution which just works.
You can install and implement a different VPN server - SoftEther (serving SSL, IPsec, PPTP, L2TP VPNs), OpenVPN, Windows RRAS, ...
or use a cloud VPN service, which some of them are free but restricted.

I don't agree that you never should run PPTP because of security reasons, in particular for temporary connections, but NAT can be an issue for the GRE protocol used with it.
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nociSoftware EngineerCommented:
@QLemo, please forget about PPTP, is does NOT encrypt, it helps enumerating valid user accounts, and test passwords for those.
It was confirmed broken 20 years ago, "slightly fixed up" then,  and near realtime broken from 10 years ago. (then Moxie Marlinspike  ran a service to get valid credentials within 24 hour (worst case, guaranteed) after paying the AWS bill ~ $100). Compute power only rose a little last 10 years. (should be >30 times as fast now, so crack within 1 hour (worst case) should be feasible).  And as VPN were requested...
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SoulwinnerIT ManagerAuthor Commented:
I dont want to touch my router for VPN, i can use a windows server to configure the VPN.

so OpenVPN will be a good option?
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QlemoBatchelor, Developer and EE Topic AdvisorCommented:
Any solution except a cloud VPN requires to modify the router by implementing port forwarding and (depending on the router firewall)  allowing ingress traffic for that port.

OpenVPN is no different. A basic setup can be done in about an hour, if you know what to do and follow the corresponding tutorials. Most effort is put into creating SSL self-signed certificates and the corresponding private keys with OpenSSL. Since you need to install OpenVPN on both Server and Clients, this might not be the best option for you.

L2TP/IPsec with Windows RRAS requires to create a certifcate (to be installed on client PCs), but no client installation.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
If you have multiple public IPs, you can easily use one for another VPN router.  pfSense includes OpenVPN and Untangle includes OpenVPN and both can offer multi-factor authentication.  I haven't used Windows Server as a VPN in at least 10 years.
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