# ambrop72/badvpn

NCD scripting language, tun2socks proxifier, P2P VPN

Repository: https://github.com/ambrop72/badvpn
Canonical: https://ross.abutalabs.com/products/badvpn
Language: C
License: NOASSERTION
License Family: other
Archived: true
Last push: 2021-08-22T15:44:42+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4580, "days_push": 1837, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1933, forks 653 (observed 2026-08-28T04:05:56.338601+00:00)

## What it is
BadVPN is a collection of C networking tools: the NCD scripting language/daemon for network configuration, a tun2socks network-layer proxifier that routes all TCP traffic through a SOCKS server, and a Layer 2 peer-to-peer VPN. The repository is archived and no longer maintained.

## Use cases
- route all system TCP traffic through a SOCKS proxy without app support
- proxy traffic through a remote SSH server
- configure Linux network interfaces with a scriptable daemon
- set up a peer-to-peer Layer 2 VPN between machines
- handle NAT traversal for VPN peers
- deliver multicast efficiently with IGMP snooping

## When to choose
- you need a network-layer SOCKS proxifier on Linux or Windows
- you want a flexible scriptable network configuration daemon on Linux
- you need a self-hosted P2P Ethernet VPN with NAT traversal

## When to avoid
- you want actively maintained software with security updates
- you need a modern VPN like WireGuard with better performance
- you need NCD on non-Linux platforms

## Facets
- artifact type: application
- maturity: abandoned
- function: vpn, networking, proxy, configuration-management, p2p
- domain: networking, privacy, censorship-circumvention, self-hosted, operating-systems
- platform: windows, bsd, cli
- tags: tun2socks, ncd, socks, layer2-vpn, archived, linux

## Member repositories
- ambrop72/badvpn (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:56.338601+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:08:33.718984+00:00, confidence not recorded.
  - readme: https://github.com/ambrop72/badvpn (fetched 2026-08-28T04:05:56.338601+00:00, sha 63f9ac24acdf)
- Data as of 2026-08-30T08:39:29.467469+00:00.