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How to restrict OpenVPN clients to only allow RDP?
On a pfSense 2.3.2 appliance, we currently have one OpenVPN server using port-1204 (tunnel 10.1.28.0/24, LAN 10.1.16.0/24). Its clients can access all network resources, file sharing, etc. It’s intended for users who take their company laptops home. It’s been working well.
How can I restrict access to my Network?
By default the software is configured to allow open access to your network. But what if you want to restrict users to only use certain services on your network? Furthermore, what if you want to use the same OpenVPN server to allow yourself or employees full access to the network while giving your customers restricted access?
How to limit client access to LAN addresses?
This directive will set up an OpenVPN server which will allocate addresses to clients out of the given network/netmask. The server itself will take the “.1” address of the given network for use as the server-side endpoint of the local TUN/TAP interface.
How to restrict access to users, servers and services?
Allow Access to Networks and Services <- Set this to allow access to servers and services. format: 10.100.100.20/32:tcp/1433 <- this will limit access to only this server and only MSSQL. Add a new user and assign to a group you created according to the level of access you want to grant.
Why is my OpenVPN client reporting MAC address?
That is because OpenVPN clients can report certain details like MAC address and OpenVPN version number during the initial steps when making a VPN tunnel connection, and the Access Server can perform extra checks on this information before allowing the connection to fully establish.
How to set up and configure an OpenVPN server?
Setting up your own Certificate Authority (CA) and generating certificates and keys for an OpenVPN server and multiple clients. Creating configuration files for server and clients. Starting up the VPN and testing for initial connectivity. Configuring OpenVPN to run automatically on system startup. Controlling a running OpenVPN process.
How does the OpenVPN authentication plugin work?
The OpenVPN server will call the plugin every time a VPN client tries to connect, passing it the username/password entered on the client. The authentication plugin can control whether or not the OpenVPN server allows the client to connect by returning a failure (1) or success (0) value.