HOW TO MAKE YOUR PHONE HOST A OpenVPN SERVER USING TERMUX

I dont know why i'm doing this... BUT

Step 1: Install Termux

First, you need to install Termux from the Google Play Store or F-Droid. (I like to install it using F-Droid)

Step 2: Install OpenVPN

OpenVPN is a popular VPN protocol that is highly secure and easy to set up. You can install it on Termux by running the following commands:

pkg update
pkg install openvpn

Very simple :P

Step 3: Generate Certificates and Keys

OpenVPN requires a set of certificates and keys to function.

You can generate these using the easy-rsa package. Install it and then use it to generate your keys:

pkg install easy-rsa
easyrsa init-pki
easyrsa build-ca
easyrsa gen-dh
easyrsa build-server-full server nopass
easyrsa build-client-full client nopass

This will create a set of certificates and keys in the pki directory under your home directory.

Step 4: Configure OpenVPN

You need to create a configuration file for OpenVPN. Create a new file named server.conf and add the following content:

port 1194
proto udp
dev tun
ca /path/to/your/pki/ca.crt  > Replace path!
cert /path/to/your/pki/server.crt  > Replace path!
key /path/to/your/pki/server.key  > Replace path!
dh /path/to/your/pki/dh.pem  > Replace path!
server 10.8.0.0 255.255.255.0
ifconfig-pool-persist ipp.txt
push "redirect-gateway def1 bypass-dhcp"
push "dhcp-option DNS 208.67.222.222"
push "dhcp-option DNS 208.67.220.220"
keepalive 10 120
cipher AES-256-CBC
user nobody
group nogroup
persist-key
persist-tun
status openvpn-status.log
verb 3

Replace /path/to/your/pki/ with the actual path to your pki directory.

Step 5: Start OpenVPN Server

Now you can start the OpenVPN server by running:

openvpn --config /path/to/your/server.conf

Step 7: Connect to the VPN

On a differant device, use an OpenVPN client app to connect to the VPN using the client.ovpn file. You will need to enter the username and password you set when generating the client certificate.