https://github.com/rabilrbl/dropbear-mipsel
Lightweight SSH server and client tools built for MIPSEL-based devices like the JioFiber Router.
https://github.com/rabilrbl/dropbear-mipsel
Last synced: 6 months ago
JSON representation
Lightweight SSH server and client tools built for MIPSEL-based devices like the JioFiber Router.
- Host: GitHub
- URL: https://github.com/rabilrbl/dropbear-mipsel
- Owner: rabilrbl
- Created: 2025-04-25T01:50:29.000Z (6 months ago)
- Default Branch: main
- Last Pushed: 2025-04-25T04:19:59.000Z (6 months ago)
- Last Synced: 2025-04-25T04:33:23.747Z (6 months ago)
- Homepage:
- Size: 42 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Dropbear-mipsel
Lightweight SSH server and client tools built for **MIPSEL**-based devices like the **JioFiber Router**.
This project provides precompiled binaries of [Dropbear SSH](https://matt.ucc.asn.au/dropbear/dropbear.html) — a small SSH server/client — for embedded Linux devices using the **mipsel architecture**.
---
## 📥 Downloads
Download the tools from the latest release here:
➡️ [Releases](https://github.com/rabilrbl/dropbear-mipsel/releases/latest)
You can directly download individual files using this format:
```
https://github.com/rabilrbl/dropbear-mipsel/releases/latest/download/
```
Available files:
| File | Description |
|------|-------------|
| `dropbear` | Lightweight SSH server |
| `dbclient` | SSH client (like OpenSSH's `ssh`) |
| `dropbearkey` | Key generation tool |
| `dropbearconvert` | Converts keys between OpenSSH and Dropbear format |
| `scp` | Secure copy tool (to transfer files over SSH) |
---
## 🚀 How to Use on a JioFiber Router
> ⚠️ You must have root access to JioFiber router. Follow guide at https://github.com/JFC-Group/JF-Customisation
### 1. Download the required files
```sh
wget -O /flash2/dropbear --no-check-certificate https://github.com/rabilrbl/dropbear-mipsel/releases/latest/download/dropbear
wget -O /flash2/dropbearkey --no-check-certificate https://github.com/rabilrbl/dropbear-mipsel/releases/latest/download/dropbearkey
chmod +x /flash2/dropbear /flash2/dropbearkey
```
### 2. Generate an SSH key
```sh
/flash2/dropbearkey -t ed25519 -f /flash2/id_dropbear
```
This creates a secure private key at `/flash2/id_dropbear`.
### 3. Start the Dropbear SSH server
```sh
/flash2/dropbear -p 22 -r /flash2/id_dropbear
```
This starts the SSH server on port **22** using your generated key.
### 4. Allow SSH traffic through the firewall
```sh
/pfrm2.0/bin/iptables -I fwInBypass -p tcp --dport 22 -m ifgroup --ifgroup-in 0x1/0x1 -j ACCEPT
```
### 5. Connect to the Router via SSH
From your computer or phone (using an SSH client), run:
```sh
ssh root@
```
> Replace `` with your router’s actual IP address (e.g., `192.168.1.1`).
When prompted, enter the **root password** of your router to log in.
---
## 🔁 Auto-Start on Boot in JioFiber routers
To make Dropbear start automatically each time the router reboots:
Add command from step 3 and stpe 4 to file `/flash2/pfrm2.0/etc/customInit` and make that file executable.
This ensures the SSH server and firewall rule are applied every time the device boots.
---
## 🧠 What Each Tool Does
- **`dropbear`**: The SSH server that accepts incoming SSH connections.
- **`dbclient`**: A lightweight SSH client for connecting to other devices.
- **`dropbearkey`**: Generates the key file used by the server.
- **`dropbearconvert`**: Converts keys between OpenSSH and Dropbear formats.
- **`scp`**: Used for secure file transfer over SSH.
---
## ✅ Why Dropbear?
- Extremely lightweight — ideal for routers and embedded systems
- Compatible with OpenSSH clients and servers
- Simple to set up, even with limited resources
---
## 🙌 Credits
- Dropbear: https://github.com/mkj/dropbear
- Buildroot: https://github.com/JFC-Group/JF-Buildroot