1. Choose a VPN Tool: Install curl on your Linux system, which is a free tool that connects to a VPN site. Alternatively, use browser extensions to bypass ads and redirect traffic.

2. Use Free VPN Services with Free Plans: Install curl or another free VPN tool to connect to a site. This method is ideal for convenience and security.

3. Browser Extensions: Install browser extensions like "Pop Warner" or "Via Wi-Fi" to connect to a VPN via public Wi-Fi. Be cautious of the legal and security risks associated with this method.

4. Reputable VPN Services: Opt for reputable, well-rated VPN services for a secure experience. Look for reviews and memberships that meet your needs.

5. FreeVNC: Consider installing a free shell like "FreeVNC" for connecting to a live network, though be mindful of its potential illegality.

6. Test the Connection: After installation, connect to a site and test if the traffic is redirected to the intended server.

7. Security and Privacy: Remember that paid VPN services are generally better for privacy and security, even if they cost money.

By following these steps, you can effectively connect to a VPN, ensuring both security and convenience.