Life & fun · alternatives · 2026
24 alternatives to TOTP Based Port Knocking -- two factor firewall
Introduction This is a proof of concept for using TOTP with a shared key between client and server to gain access to a normally closed secure...
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. TOTP Based Port Knocking -- two factor firewall launched in 2017; newer entries below may have overtaken it.
- 1
Side project tunneling a TCP port through WhatsApp, can be useful on airplanes or any WiFi/carrier that has unlimited social network data limits. Appreciate feedback :)
2022 · github.com · its alternatives →
- 2
- 3
Knock-Knock.net is a live honeypot dashboard showing real-time bot attacks by protocol, source country, ISP, username, password, and IP across SSH, Telnet, FTP, RDP, SMB, SIP, HTTP, and SMTP services.
Feb 2026 · knock-knock.net · its alternatives →
- 4
eBPF Port Knocking Tool. Contribute to eeriedusk/knockles development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 5
A totally proof-of-concept FoundationDB based network block device backend - dividuum/fdb-nbd
2018 · github.com · its alternatives →
- 6
This program can be used to tunnel TCP connections through a file. People have used it for interesting things: - Bridging connections which would otherwise be blocked by a firewall - Tunneling through RDP (similar to an SSH tunnel) - Exposing a localhost web server to others Key features I put effort into: 1. The shared file is restarted every 10 MB, so it doesn't grow indefinitely. 2. Optimisations for latency & bandwidth. (800 Mbps on a Gigabit LAN. 108 Mbps if file tunneling through RDP) 3. Synchronisation between two sides (each side can be started and restarted in any order) I'd love to…
2024 · github.com · its alternatives →
- 7
A fast SOCKS5 proxy that tunnels your traffic through what looks like normal SMTP email, bypassing Deep Packet Inspection firewalls. How it works: - Client runs a local SOCKS5 proxy (127.0.0.1:1080) - Traffic is sent to server disguised as SMTP (EHLO, STARTTLS, AUTH) - DPI sees legitimate email session, not a VPN/proxy Features: - One-liner install on any Linux VPS - Multi-user with per-user secrets and IP whitelists - Auto-generated client packages (just double-click to run) - Auto-reconnect on connection loss - Works with any app that supports SOCKS5 Tech: Python/asyncio, TLS…
Jan 2026 · github.com · its alternatives →
- 8
- 9OS
ondevice.io - all your devices in one place - no need to set up port forwarding
2017 · ondevice.io · its alternatives →
- 10
A rest application to update firewalld rules on a linux server - GitHub - prashantgupta24/firewalld-rest: A rest application to update firewalld rules on a linux server
2020 · github.com · its alternatives →
- 11YN
End-to-end encrypted IPv6 networking to connect worlds
2019 · yggdrasil-network.github.io · its alternatives →
- 12PS
I've made a neat service to access SSH over NAT. Unlike ngrok and alternatives with registration, custom software, non-preserved random URLs and ports, this solution is just a remote SSH server which does not require anything more than an SSH client to both host and connect. Technically it allows to publish any service over SSH (web, proxy, any TCP port really), but only with SSH as a destination you'll preserve end-to-end encryption and won't allow my server to snoop on potentially unencrypted traffic. The service is mostly intended to give remote access to the device as fast as possible,…
2021 · its alternatives →
- 13
Two-factor authentication in your browser itself
2021 · authenticator.cc · its alternatives →
- 14
SCTP is a low level protocol focused on reliable packet transmission. Unlike hopelessly flinging packets from one device to another, it makes sure that the packets are correct using CRC, removes duplicate packets, and allows for packets to be sent in any order. Going into an established library, I thought that everything was already implemented and that there wasn't anything to do until I went through the existing issues and organized all the tasks and decided on an order. Sean DuBois (https://github.com/Sean-Der), one of the co-creators and current maintainers of Pion, an…
2025 · pion.ly · its alternatives →
- 15
Maybe some of you feel like me sometimes: I don't need SSH port forwarding very often. That's why I usually forget the exact ssh call by the time I need it. So that I no longer have to search for the correct call in the man page or on the Internet, I have implemented common scenarios interactively. Simply enter addresses, ports and user names and the result is the correct ssh call. I can simply copy it and use it.
2023 · github.com · its alternatives →
- 16TY
Hi HN, Some misbehaving networks drop WireGuard packets either by accident or on purpose. Commonly the latter is done with simple DPI rules that block the handshake initiation [1], but it could be applied to other message types as well. We thought it would be great if there was tool for folks to use as a quick litmus test to see if this happening for them, without having to configure a client to send data through a random, functional WireGuard tunnel to an untrusted remote host. So we built probe.sh. How it works: - The probe.sh web app is an Elixir Phoenix app that spawns a few gen_udp…
2024 · probe.sh · its alternatives →
- 17SS
2021 · sharedotp.com · its alternatives →
- 18
Serverless, peer-to-peer, local file sharing through sound - ggerganov/wave-share
2018 · github.com · its alternatives →
- 19
Single packet authorization UDP port knocking for Mosh without SSH.
2021 · gitlab.com · its alternatives →
- 20
grpc microservices with mutual TLS and token authentication in Go - 3n21c0/hello-auth-grpc
2017 · github.com · its alternatives →
- 21
Minimal TOTP generator in 20 lines of Python. Contribute to susam/mintotp development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 22
The service lets you share an entire folder - not just a single file - with anyone on the Internet in a single click. Under the hood, GET responses are hydrated with file fragments streamed over a duplex WebSocket connection. Close the browser tab, and the server disappears. Files can also be password-protected. I built it because I needed a way to share a static website with a client without first uploading the work to a cloud service.
Jun 2026 · socket2.me · its alternatives →
- 23TA
2014 · totp.me · its alternatives →
- 24
Hi HN, Over the last few days I've been building USTPS (UDP Speedy Transmission Protocol Secure), an experimental encrypted transport protocol built on top of UDP. The primary goal of USTPS is low-latency video streaming. A server can take a video source and expose it through a USTPS endpoint, while Linux and Android (Termux) clients receive the stream and expose it locally to applications such as VLC, mpv, and FFmpeg. Although streaming is the main focus, USTPS is not limited to media delivery. It can also be used for other reliable encrypted UDP-based applications, which is why I built…
Jun 2026 · github.com · its alternatives →
Also compare
- Wa-tunnel – HTTP Tunneling through Whatsapp alternatives
- TOTPBOX alternatives
- Knock-Knock.net – Visualizing the bots knocking on my server's door alternatives
- Knockles – eBPF Port Knocking Tool alternatives
- A proof-of-concept FoundationDB based network block device backend alternatives
- Tunnelling TCP through a file alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →