- #HOW TO CHANGE OPENVPN ACCESS SERVER PORT HOW TO#
- #HOW TO CHANGE OPENVPN ACCESS SERVER PORT INSTALL#
- #HOW TO CHANGE OPENVPN ACCESS SERVER PORT SOFTWARE#
In this way, we can have the best possible encryption of communications.
#HOW TO CHANGE OPENVPN ACCESS SERVER PORT HOW TO#
In this manual we are going to show you how to make a very secure OpenVPN configuration in pfSense, customizing the symmetric, asymmetric and hash encryption algorithms. In this tutorial to configure OpenVPN in pfSense we will use a virtual subnet 10.8.0.0/24 where we will have all the VPN clients when they connect, it will be very easy to identify the different VPN clients that we have connected to the network, in addition, we can “force” so that each client with a specific certificate always has the same private IP address of the VPN tunnel. The bridge operation mode is useful to intercommunicate remote users easily, but if the source private network matches the destination one, we will have a routing problem and the communication will not work. TAP : this operating mode simulates an Ethernet network interface, it is also known as a bridge, and what this virtual tunnel does is directly encapsulate Ethernet packets.All clients will be provided with a specific new subnet, by default the OpenVPN subnet is 10.8.0.0/24 but we can configure the one we want. TUN : this operating mode allows encapsulation of all the packets that are transported through it as TCP segments or UDP datagrams.With OpenVPN we have two ways of managing packages and how they work at the transport layer level: Of course, on the server we can add different subnets to route traffic through the different subnets that we have in pfSense, and we can even configure in the firewall whether or not we want to allow those accesses from a specific OpenVPN server IP address. A very important detail is that the OpenVPN server must be installed in an Internet connection outside of CG-NAT, and with the rules in the firewall open to allow the connection, otherwise, we will not be able to connect through the Internet. All traffic will be end-to-end encrypted from our OpenVPN client (which is installed on a computer, smartphone or tablet) to the pfSense OpenVPN server. The OpenVPN server integrated in pfSense will allow us to connect to our home or work remotely, quickly and safely, regardless of whether the network is wired or WiFi. pfSense allows you to export the private key of the certificates with a password, in this way, to be able to use these certificates we would also have to incorporate an additional password, otherwise, it would not work. In addition to incorporating authentication based on SSL / TLS certificates, we could also incorporate additional authentication with username / password, to have a more robust system. pfSense allows different types of authentication, but the most recommended is based on SSL / TLS certificates to ensure authenticity, confidentiality and integrity, and it is not recommended to use pre-shared keys. OpenVPN supports dozens of different configurations, both to improve performance and security. For example, with this type of VPN we can communicate offices, company headquarters, etc. Site-to-Site VPN : this architecture allows us to intercommunicate one site with another, to intercommunicate different sites through the Internet and that all traffic is protected point-to-point.This type of VPN is aimed at telecommuters, network and systems technicians, etc. They will also be able to access the subnets that we indicate. Remote Access VPN – Remote clients will connect to the pfSense VPN server, and go out to the Internet through us.
#HOW TO CHANGE OPENVPN ACCESS SERVER PORT SOFTWARE#
The OpenVPN software that we have integrated into pfSense will allow us to create and configure two types of architectures: One of the strengths of OpenVPN in pfSense is that the vast majority of available options are available through a very intuitive graphical user interface, this will allow us to configure it without the need to manually incorporate any directive in the “options” field. OpenVPN is a software that allows us to build virtual private networks, we will have a control channel where the lifting of the tunnel and the negotiation of the encryption protocols will be managed, and we will have a data channel where all the tunnel traffic will be encrypted point to point.
#HOW TO CHANGE OPENVPN ACCESS SERVER PORT INSTALL#
What is and what is the OpenVPN built into pfSense for?.