If you’re looking to remotely manage your Termux environment, learning how to set up SSH on Termux is essential. SSH allows you to securely access and control your Android device from another terminal or device. This guide walks you through the step-by-step process to install and configure SSH in Termux, troubleshoot common issues, and effectively manage SSH errors using debug mode (sshd -d).
Table of Contents
- Introduction
- Step-by-Step Guide to Set Up SSH on Termux
- Troubleshooting SSH Setup in Termux
- How to Connect to Termux via SSH
- Additional Troubleshooting for SSH on Termux
- Internal and External Links
- Conclusion
Step-by-Step Guide to Set Up SSH on Termux
Install OpenSSH in Termux
To get started, install the OpenSSH package, which allows you to run the SSH server on Termux:
$ pkg install opensshSet a Password for SSH Access
After installing OpenSSH, you’ll need to create a password for the SSH connection:
$ passwdThis password will be required when logging into Termux via SSH.
Configure SSH to Use a Non-Privileged Port
By default, SSH uses port 22, which requires root privileges. Since Termux doesn’t run with root privileges, you need to configure SSH to use a port above 1024.
Open the SSH configuration file:
$ vim $PREFIX/etc/ssh/sshd_configChange the default port from 22 to something like 2222:
Port 2222Start the SSH Daemon
Once you’ve updated the configuration, start the SSH daemon:
$ sshdThis will start the SSH server on your specified port, allowing remote connections.
Troubleshooting SSH Setup in Termux
When trying to set up SSH on Termux, you may encounter some common errors. Below are the most frequent issues and how to resolve them.
Error: Permission Denied, Unable to Bind to Port 22
If you try to bind SSH to port 22, you might see the following error:
$ Bind to port 22 on :: failed: Permission denied
$ Bind to port 22 on 0.0.0.0 failed: Permission deniedCause: This happens because Termux doesn’t have root privileges to use port 22.
Solution:
Change the port to a non-privileged port above 1024 (e.g., 2222):
Port 2222After editing the port in the configuration file, restart the SSH service:
$ sshdError: SSHD Not Running
If SSHD fails to start or seems unresponsive, running it in debug mode can help:
$ sshd -dDebug mode provides logs that can pinpoint the exact problem, whether it’s a configuration error or a permissions issue.
Error: Unable to Bind to Any Address
If you receive this error:
$ Bind to address 0.0.0.0 failed: Permission deniedEnsure you’ve correctly set the port above 1024 in the configuration file. Additionally, check that no other process is using the selected port.
How to Connect to Termux via SSH
Once you’ve successfully set up SSH on Termux, follow these steps to connect remotely.
Find Your Android Device’s IP Address
In Termux, run this command to identify your IP address:
$ ip aYou’ll likely see your IP address under the wlan0 network interface if connected to Wi-Fi.
SSH from Another Device
From a terminal on another device, you can SSH into Termux using the following command (replace 192.168.x.x with your device’s IP address):
$ ssh user@192.168.x.x -p 2222You’ll be prompted for the password you set earlier in Termux.
Additional Troubleshooting for SSH on Termux
Error: Connection Refused
If your SSH connection is refused, verify that the SSH server is running by checking the process:
$ ps aux | grep sshdIf SSHD isn’t running, start it again:
$ sshdError: Server Listening on the Wrong Port
If you can’t connect to Termux, check if the server is listening on the correct port by running SSHD in debug mode:
$ sshd -dThis will display logs indicating the active port and any potential issues.
Conclusion
By following this guide on how to set up SSH on Termux, you’ll be able to access and control your Termux environment remotely. Whether you’re troubleshooting SSH errors or simply looking to connect via another device, these steps will ensure a smooth experience. Remember, SSH is a powerful tool for remote management, but make sure to configure it securely by changing the default port and using strong passwords.
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