Open VPN Install 24.04LTS

apt install openvpn easy-rsa

Setup easyRSA

make-cadir /etc/openvpn/easy-rsa

Create the keystore / CA

./easyrsa init-pki
./easyrsa build-ca

This creates the PKI directory in which we will copy back our exiting keys / certs

copy our config file back.

Copy back the etc files from the openvpn backup including all the RSA params etc.

It should look like this for socttworldgaming.conf

; Thia allows internal to internal with Internet traffice split to direct.
port 1195
proto udp4
dev tap
tls-server
ca /etc/openvpn/easy-rsa/pki/ca.crt
cert /etc/openvpn/easy-rsa/pki/solaris.crt
key /etc/openvpn/easy-rsa/pki/solaris.key
dh /etc/openvpn/easy-rsa/pki/dh2048.pem
cipher AES-256-CBC
server-bridge 10.3.200.1 255.255.0.0 10.3.102.1 10.3.102.10
push "dhcp-option DNS 10.3.200.1"
;push "redirect-gateway"
keepalive 30 90
;compress lzo
max-clients 5
user nobody
group nogroup
persist-key
persist-tun
status openvpn-gaming-status.log
verb 3
duplicate-cn
script-security 2
up "/etc/openvpn/up.sh br0 tap0 1500"
down "/etc/openvpn/down.sh br0 tap0"
client-to-client

systemctl enable openvpn@solarisgaming

service openvpn start

Add a static route on the main router so the OpenVPN traffic can route for the 10. network

Network 	Subnet mask 	Gateway 	
10.3.0.0	255.255.255.0	192.168.3.200

Make sure the OpenVPN server has IP forwarding turned on.

nano /etc/sysctl.d/local.conf

Add this to the file

net.ipv4.ip_forward=1

Save and restart process

systemctl restart procps.service