I have a home server running Debian 12 with multiple internet connections:
* eth0: My primary optic fiber connection. * pppX (0-N): USB 4G modem interfaces connected via wvdial. I use wvdial for better control and stability, though I'm open to suggestions.
A C# server I wrote manages these resources to provide a small, experimental proxy service.
How it works:
1. Client Request: A client requests a proxy. 2. Server Action: The server selects an available USB modem, and uses wvdial to establish a connection, creating a new network interface (pppX). The server then configures 3proxy to listen on a specific port and forward traffic to the newly created interface. Generates credentials, and gives the proxy data to the client.
The connection lasts for a set number of hours, then is closed and resources are released.
The Problem:
While this system works, I need to make it more robust and secure. I've considered OpenVPN, but WireGuard isn't suitable due to its UDP-only nature. I need TCP for anonymity.
The Goal:
I want to implement OpenVPN in my existing architecture. The core idea remains the same: using USB modems and wvdial. However, instead of a proxy server, we'll use an OpenVPN server.
Requirements:
1. Dynamic Configuration: The server should generate .ovpn files for each client, revoking them after the connection ends. 2. Dedicated Connections: Each client should have a dedicated connection to a specific USB modem, ensuring that traffic from different clients is not mixed. After the connection is closed and resources are released, the modem should be available for a new client. 3. Configuration Guidance: I need help with the OpenVPN configuration, including file locations, key settings, and routing rules. Consider I don't have advanced knowledge on Linux network management.
I'm not a Linux expert, but I'm eager to learn. I have clients relying on this service, so I need a quicker solution than self-learning.
How I want it to work (I'm open to suggestions of course):
1. A client requests a VPN connection, the server runs wvdial as it currently does. 2. After the interface is up and has internet access, the server must set up a new configuration to allow the current client to connect to the server and redirect their traffic to this newly created interface through a specific port. 3. Then after some hours, or when the client requests it, the server closes the connection, invalidates the .ovpn client file, and closes wvdial.
Just to clarify, wvdial, after linking the modem with the ISP (by running ppp), gives me the information of the new connection. The network details such as IPv4 addresses, interface name, etc., all the data that comes from `/etc/ppp/ip-up`, are available to use for routing or whatever is needed.
Field Recruiters for AI Data Infrastructure Company Category: Business Development, Data Collection, Digital Marketing, Influencer Marketing, Lead Generation, Market Research, Project Management, Recruitment, Sales, Social Media Marketing Budget: $2 - $8 USD
27-May-2026 22:00 GMT
TikTok-Optimized Mobile App Ad Creation Category: Advertisement Design, Banner Design, Graphic Design, Photoshop, TikTok, Video Ads, Video Editing Budget: $30 - $250 USD
27-May-2026 21:57 GMT
Automate Sheets Sales Dashboard Category: Data Analysis, Data Management, Data Processing, Data Visualization, Excel, Google Sheets, Inventory Management, Scripting, Visual Basic, Visual Basic For Apps Budget: €250 - €750 EUR
27-May-2026 21:57 GMT
Přesný 3D model bytu (např. SketchUp) Category: 3D Animation, 3D Architecture, 3D CAD, 3D Design, 3D Drafting, 3D Modelling, 3D Rendering, 3D Visualization, 3ds Max, SketchUp Budget: €250 - €750 EUR
Prototype Game Development: Puzzle & Exploration Category: 3D Animation, 3D Modelling, Blender, Game Design, Game Development, Game UI, Lighting Design, Unity, Unity 3D, Unreal Engine Budget: €30 - €250 EUR
27-May-2026 21:53 GMT
3D model třípokojového bytu Category: 3D Animation, 3D Architecture, 3D Modelling, 3D Rendering, 3D Visualization, 3ds Max, Interior Design, SketchUp Budget: €250 - €750 EUR
DTC UGC Ad Video Editing Category: Adobe Premiere Pro, After Effects, Animation, CapCut, Final Cut Pro, Motion Graphics, Video Editing, Video Production Budget: ₹12500 - ₹37500 INR
Agentic AI Personal Assistant Build Category: Agentic AI, AI Agents, AI Chatbot Development, AI Development, Claude (Anthropic), Claude Code, OpenClaw Budget: Fixed Price — up to $1
