How To Install sidedoor on Debian 12

Learn how to install sidedoor on Debian 12 with this tutorial. sidedoor is SSH connection daemon

Introduction

In this tutorial we learn how to install sidedoor on Debian 12.

What is sidedoor

sidedoor is:

sidedoor maintains an SSH connection or tunnel with a shell script daemon.

The primary use case is maintaining a remote port forward to the local SSH server (or another port). Thus, the local device can be accessed without using incoming connections that may be blocked by a NAT or firewall or otherwise impractical with mobile devices.

SSH clients can connect to the device via the reverse SSH proxy that sidedoor tunnels to. This proxy server can be untrusted and run by a third party or cloud service.

sidedoor enables SSH keepalives and retries SSH with exponential backoff. In order to reconnect as soon as possible, it resets the backoff when a network interface is brought up (or changed).

Refer to the sidedoor man page to configure and set SSH keys.

There are three methods to install sidedoor on Debian 12. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install sidedoor Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install sidedoor using apt-get by running the following command:

sudo apt-get -y install sidedoor

Install sidedoor Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install sidedoor using apt by running the following command:

sudo apt -y install sidedoor

Install sidedoor Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Debian. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install sidedoor using aptitude by running the following command:

sudo aptitude -y install sidedoor

How To Uninstall sidedoor on Debian 12

To uninstall only the sidedoor package we can use the following command:

sudo apt-get remove sidedoor

Uninstall sidedoor And Its Dependencies

To uninstall sidedoor and its dependencies that are no longer needed by Debian 12, we can use the command below:

sudo apt-get -y autoremove sidedoor

Remove sidedoor Configurations and Data

To remove sidedoor configuration and data from Debian 12 we can use the following command:

sudo apt-get -y purge sidedoor

Remove sidedoor configuration, data, and all of its dependencies

We can use the following command to remove sidedoor configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge sidedoor

Dependencies

sidedoor have the following dependencies:

References

Summary

In this tutorial we learn how to install sidedoor package on Debian 12 using different package management tools: apt, apt-get and aptitude.