Ncat Installation & Usage in Termux

Ncat is widely considered the 'Swiss Army Knife' of networking. It allows you to read, write, and redirect data across networks in Termux, making it an essential tool for debugging, testing, and transferring data.

Installation Commands

Ncat is part of the nmap package. Follow these steps to install it in Termux.

1. Update Packages

                    TERMINAL
                    BASH
                

pkg update && pkg upgrade -y

2. Install Nmap

                    TERMINAL
                    INSTALL
                

pkg install nmap -y

3. Verify Installation

                    TERMINAL
                    VERIFY
                

ncat --version

Practical Usage Examples

Once installed, you can use Ncat for a variety of tasks.

Listening on a Port

Start a listening server on port 4444. Useful for receiving connections.

                    TERMINAL
                    LISTEN
                

ncat -lvnp 4444

Connecting to a Port

Connect to a remote device listening on port 4444.

                    TERMINAL
                    CONNECT
                

ncat <IP_ADDRESS> 4444

File Transfer

Send a file to a listening receiver:

                    TERMINAL
                    SEND
                

ncat <IP_ADDRESS> 4444 < file.txt

Receive a file (acting as a listener):

                    TERMINAL
                    RECEIVE
                

ncat -lvnp 4444 > received.txt

Basic Network Analysis

Check if a specific port is open on a target (e.g., port 80):

                    TERMINAL
                    SCAN
                

ncat -zv <IP_ADDRESS> 80

Scan a range of ports (e.g., 20-100):

                    TERMINAL
                    SCAN RANGE
                

ncat -zv <IP_ADDRESS> 20-100

Ncat