# seclab-ucr/INTANG

Repository: https://github.com/seclab-ucr/INTANG
Canonical: https://ross.abutalabs.com/products/intang
Language: C
License: GPL-3.0
License Family: copyleft
Last push: 2025-06-11T07:05:24+00:00

## Health v2 (maintenance only)
Score: 44/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 26, release rhythm 35, longevity 100
- inputs: {"age_days": 3274, "days_push": 448, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2835, forks 550 (observed 2026-08-28T04:07:24.513293+00:00)

## What it is
INTANG is a Linux daemon that evades the Great Firewall of China's TCP reset attacks by desynchronizing the TCP Control Block on censorship devices using crafted insertion packets. It operates at the TCP/IP layer, protecting all TCP-based application protocols such as HTTP, DNS over TCP, OpenVPN, and Tor.

## Use cases
- bypass GFW TCP reset attacks
- protect TCP connections from censorship
- evade the Great Firewall of China
- run anti-censorship tooling on a proxy server
- keep OpenVPN or Tor connections from being reset
- circumvent TCP-level internet censorship on Linux

## When to choose
- you need TCP-layer censorship evasion that works for all application protocols
- you run Linux with netfilter support and root privileges
- you want to deploy protection on a proxy for other users

## When to avoid
- you need a user-friendly application-layer VPN or proxy client
- you cannot run a root daemon on Linux
- you need support for non-TCP protocols only

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: security, networking, proxy, privacy
- domain: censorship-circumvention, security, networking, privacy
- platform: cli
- tags: gfw, tcp-manipulation, anti-censorship, netfilter, research-project, linux

## Member repositories
- seclab-ucr/INTANG (main) score 44

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:24.513293+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 2026-08-30T07:37:48.082842+00:00, confidence not recorded.
  - readme: https://github.com/seclab-ucr/INTANG (fetched 2026-08-28T04:07:24.513293+00:00, sha 56038e942975)
- Data as of 2026-08-30T08:39:29.467469+00:00.