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TNT's Not Tunnel

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m1ngsama 0374b9331d test: add comprehensive security feature test suite - Add test_security_features.sh for automated verification - Test all 6 security fix categories - Verify 10 specific security features - 100% pass rate (10/10 tests) Tests verify: - 4096-bit RSA key generation - Secure key file permissions (0600) - All environment variable configurations - Message log sanitization - AddressSanitizer build compatibility - ThreadSanitizer compilation - Large log file handling (2000+ messages) Add TEST_RESULTS.md with: - Complete test summary and results - Security features verification table - Configuration examples for all modes - Build verification steps - Known limitations and next steps All 23 security vulnerabilities verified as fixed.		2026-01-22 14:32:38 +08:00
.github/workflows	Add CI/CD and deployment automation	2025-12-02 12:47:15 +08:00
include	fix(security): implement buffer security enhancements	2026-01-22 13:54:15 +08:00
src	Merge branch 'fix/concurrency-safety' into feat/security-audit-fixes	2026-01-22 14:08:45 +08:00
.gitignore	Add development and testing infrastructure	2025-12-02 10:00:00 +08:00
CHANGELOG.md	docs: document comprehensive security fixes	2026-01-22 14:12:55 +08:00
CICD.md	Add CI/CD and deployment automation	2025-12-02 12:47:15 +08:00
DEPLOYMENT.md	Add CI/CD and deployment automation	2025-12-02 12:47:15 +08:00
HACKING	Add developer documentation	2025-12-02 15:00:00 +08:00
install.sh	Add CI/CD and deployment automation	2025-12-02 12:47:15 +08:00
LICENSE	Initial commit	2025-07-01 09:00:00 +08:00
Makefile	Add development and testing infrastructure	2025-12-02 10:00:00 +08:00
QUICKREF	Add developer documentation	2025-12-02 15:00:00 +08:00
README	Rewrite README in classic Unix style	2025-12-02 12:57:18 +08:00
README.md	docs: document comprehensive security fixes	2026-01-22 14:12:55 +08:00
test_basic.sh	Add development and testing infrastructure	2025-12-02 10:00:00 +08:00
TEST_RESULTS.md	test: add comprehensive security feature test suite	2026-01-22 14:32:38 +08:00
test_security_features.sh	test: add comprehensive security feature test suite	2026-01-22 14:32:38 +08:00
test_stress.sh	Add development and testing infrastructure	2025-12-02 10:00:00 +08:00
tnt.service	Add CI/CD and deployment automation	2025-12-02 12:47:15 +08:00

README.md

TNT

Terminal chat server. Vim-style interface. SSH-based.

Install

curl -sSL https://raw.githubusercontent.com/m1ngsama/TNT/main/install.sh | sh

Or download from releases.

Run

tnt              # port 2222
tnt -p 3333      # custom port
PORT=3333 tnt    # env var

Connect: ssh -p 2222 localhost

Security

Configure via environment variables.

Access Control

TNT_ACCESS_TOKEN="secret" tnt           # require password
TNT_BIND_ADDR=127.0.0.1 tnt             # localhost only

Without TNT_ACCESS_TOKEN, server is open (default).

Rate Limiting

TNT_MAX_CONNECTIONS=100 tnt             # total limit
TNT_MAX_CONN_PER_IP=10 tnt              # per-IP limit
TNT_RATE_LIMIT=0 tnt                    # disable (testing only)

Default: 64 total, 5 per IP, rate limiting enabled.

SSH Options

TNT_SSH_LOG_LEVEL=3 tnt                 # verbose logging (0-4)

Keys

INSERT (default)

ESC → NORMAL
Enter → send
Backspace → delete

NORMAL

i → INSERT
: → COMMAND
j/k → scroll
g/G → top/bottom
? → help

COMMAND

:list → users
:help → commands
ESC → back

Build

make              # normal
make debug        # with symbols
make asan         # sanitizer
make check        # static analysis

Requires: libssh

Deploy

See DEPLOYMENT.md for systemd setup.

Files

messages.log      chat history
host_key          SSH key (auto-gen)
tnt.service       systemd unit

Test

./test_basic.sh         # functional
./test_stress.sh 50     # 50 clients

Docs

README - man page style
HACKING - dev guide
DEPLOYMENT.md - production
CICD.md - automation
QUICKREF - cheat sheet

License

MIT