Reticulum/docs/manual/_sources/gettingstartedfast.rst.txt

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********************
Getting Started Fast
********************
The best way to get started with the Reticulum Network Stack depends on what
you want to do. This guide will outline sensible starting paths for different
scenarios.
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Standalone Reticulum Installation
=============================================
If you simply want to install Reticulum and related utilities on a system,
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the easiest way is via the ``pip`` package manager:
.. code::
pip install rns
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If you do not already have pip installed, you can install it using the package manager
of your system with a command like ``sudo apt install python3-pip``,
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``sudo pamac install python-pip`` or similar.
You can also dowload the Reticulum release wheels from GitHub, or other release channels,
and install them offline using ``pip``:
.. code::
pip install ./rns-0.4.6-py3-none-any.whl
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Resolving Dependency & Installation Issues
=============================================
On some platforms, there may not be binary packages available for all dependencies, and
``pip`` installation may fail with an error message. Most often, this is simply due to
the ``netifaces`` package not having a pre-compiled package available via ``pip``.
Usually, this can be resolved by simply installing ``netifaces`` via the system package
manager:
.. code::
# Debian / Ubuntu / Derivatives
sudo apt install python3-netifaces
# Arch / Manjaro / Derivatives
sudo pamac install python3-netifaces
# Fedora
sudo dnf install python3-netifaces
More rarely, other dependencies cannot be resolved. In these cases, the issue can usually
be resolved by installing the development essentials packages for your platform:
.. code::
# Debian / Ubuntu / Derivatives
sudo apt install build-essential
# Arch / Manjaro / Derivatives
sudo pamac install base-devel
# Fedora
sudo dnf groupinstall "Development Tools" "Development Libraries"
With the base development packages installed, ``pip`` should be able to compile any missing
dependencies from source, and complete installation even on platforms that don't have pre-
compiled packages available.
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Try Using a Reticulum-based Program
=============================================
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If you simply want to try using a program built with Reticulum, a few different
programs exist that allow basic communication and a range of other useful functions,
even over extremely low-bandwidth Reticulum networks.
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These programs will let you get a feel for how Reticulum works. They have been designed
to run well over networks based on LoRa or packet radio, but can also be used over fast
links, such as local WiFi, wired Ethernet, the Internet, or any combination.
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As such, it is easy to get started experimenting, without having to set up any radio
transceivers or infrastructure just to try it out. Launching the programs on separate
devices connected to the same WiFi network is enough to get started, and physical
radio interfaces can then be added later.
Remote Shell
^^^^^^^^^^^^
The `rnsh <https://github.com/acehoss/rnsh>`_ program lets you establish fully interactive
remote shell sessions over Reticulum. It also allows you to pipe any program to or from a
remote system, and is similar to how ``ssh`` works.
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Nomad Network
^^^^^^^^^^^^^
The terminal-based program `Nomad Network <https://github.com/markqvist/nomadnet>`_
provides a complete encrypted communications suite built with Reticulum. It features
encrypted messaging (both direct and delayed-delivery for offline users), file sharing,
and has a built-in text-browser and page server with support for dynamically rendered pages,
user authentication and more.
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.. image:: screenshots/nomadnet_3.png
:target: _images/nomadnet_3.png
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`Nomad Network <https://github.com/markqvist/nomadnet>`_ is a user-facing client
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for the messaging and information-sharing protocol
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`LXMF <https://github.com/markqvist/lxmf>`_, another project built with Reticulum.
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You can install Nomad Network via pip:
.. code::
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# Install ...
pip install nomadnet
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# ... and run
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nomadnet
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**Please Note**: If this is the very first time you use pip to install a program
on your system, you might need to reboot your system for your program to become
available. If you get a "command not found" error or similar when running the
program, reboot your system and try again.
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Sideband
^^^^^^^^
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If you would rather use a program with a graphical user interface, you can take
a look at `Sideband <https://unsigned.io/sideband>`_, which is available for Android,
Linux and macOS.
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.. only:: html
.. image:: screenshots/sideband_devices.webp
:align: center
:target: _images/sideband_devices.webp
.. only:: latexpdf
.. image:: screenshots/sideband_devices.png
:align: center
:target: _images/sideband_devices.png
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Sideband allows you to communicate with other people or LXMF-compatible
systems over Reticulum networks using LoRa, Packet Radio, WiFi, I2P, Encrypted QR
Paper Messages, or anything else Reticulum supports. It also interoperates with
the Nomad Network program.
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Using the Included Utilities
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=============================================
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Reticulum comes with a range of included utilities that make it easier to
manage your network, check connectivity and make Reticulum available to other
programs on your system.
You can use ``rnsd`` to run Reticulum as a background or foreground service,
and the ``rnstatus``, ``rnpath`` and ``rnprobe`` utilities to view and query
network status and connectivity.
To learn more about these utility programs, have a look at the
:ref:`Using Reticulum on Your System<using-main>` chapter of this manual.
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Creating a Network With Reticulum
=============================================
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To create a network, you will need to specify one or more *interfaces* for
Reticulum to use. This is done in the Reticulum configuration file, which by
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default is located at ``~/.reticulum/config``. You can get an example
configuration file with all options via ``rnsd --exampleconfig``.
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When Reticulum is started for the first time, it will create a default
configuration file, with one active interface. This default interface uses
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your existing Ethernet and WiFi networks (if any), and only allows you to
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communicate with other Reticulum peers within your local broadcast domains.
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To communicate further, you will have to add one or more interfaces. The default
configuration includes a number of examples, ranging from using TCP over the
internet, to LoRa and Packet Radio interfaces.
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With Reticulum, you only need to configure what interfaces you want to communicate
over. There is no need to configure address spaces, subnets, routing tables,
or other things you might be used to from other network types.
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Once Reticulum knows which interfaces it should use, it will automatically
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discover topography and configure transport of data to any destinations it
knows about.
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In situations where you already have an established WiFi or Ethernet network, and
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many devices that want to utilise the same external Reticulum network paths (for example over
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LoRa), it will often be sufficient to let one system act as a Reticulum gateway, by
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adding any external interfaces to the configuration of this system, and then enabling transport on it. Any
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other device on your local WiFi will then be able to connect to this wider Reticulum
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network just using the default (:ref:`AutoInterface<interfaces-auto>`) configuration.
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Possibly, the examples in the config file are enough to get you started. If
you want more information, you can read the :ref:`Building Networks<networks-main>`
and :ref:`Interfaces<interfaces-main>` chapters of this manual.
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Connecting Reticulum Instances Over the Internet
================================================
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Reticulum currently offers two interfaces suitable for connecting instances over the Internet: :ref:`TCP<interfaces-tcps>`
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and :ref:`I2P<interfaces-i2p>`. Each interface offers a different set of features, and Reticulum
users should carefully choose the interface which best suites their needs.
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The ``TCPServerInterface`` allows users to host an instance accessible over TCP/IP. This
method is generally faster, lower latency, and more energy efficient than using ``I2PInterface``,
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however it also leaks more data about the server host.
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TCP connections reveal the IP address of both your instance and the server to anyone who can
inspect the connection. Someone could use this information to determine your location or identity. Adversaries
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inspecting your packets may be able to record packet metadata like time of transmission and packet size.
Even though Reticulum encrypts traffic, TCP does not, so an adversary may be able to use
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packet inspection to learn that a system is running Reticulum, and what other IP addresses connect to it.
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Hosting a publicly reachable instance over TCP also requires a publicly reachable IP address,
which most Internet connections don't offer anymore.
The ``I2PInterface`` routes messages through the `Invisible Internet Protocol
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(I2P) <https://geti2p.net/en/>`_. To use this interface, users must also run an I2P daemon in
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parallel to ``rnsd``. For always-on I2P nodes it is recommended to use `i2pd <https://i2pd.website/>`_.
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By default, I2P will encrypt and mix all traffic sent over the Internet, and
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hide both the sender and receiver Reticulum instance IP addresses. Running an I2P node
will also relay other I2P user's encrypted packets, which will use extra
bandwidth and compute power, but also makes timing attacks and other forms of
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deep-packet-inspection much more difficult.
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I2P also allows users to host globally available Reticulum instances from non-public IP's and behind firewalls and NAT.
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In general it is recommended to use an I2P node if you want to host a publicly accessible
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instance, while preserving anonymity. If you care more about performance, and a slightly
easier setup, use TCP.
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Connect to the Public Testnet
===========================================
An experimental public testnet has been made accessible over both I2P and TCP. You can join it
by adding one of the following interfaces to your ``.reticulum/config`` file:
.. code::
# TCP/IP interface to the Dublin hub
[[RNS Testnet Dublin]]
type = TCPClientInterface
enabled = yes
target_host = dublin.connect.reticulum.network
target_port = 4965
# TCP/IP interface to the Frankfurt hub
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[[RNS Testnet Frankfurt]]
type = TCPClientInterface
enabled = yes
target_host = frankfurt.connect.reticulum.network
target_port = 5377
# Interface to I2P hub A
[[RNS Testnet I2P Hub A]]
type = I2PInterface
enabled = yes
peers = uxg5kubabakh3jtnvsipingbr5574dle7bubvip7llfvwx2tgrua.b32.i2p
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Many other Reticulum instances are connecting to this testnet, and you can also join it
via other entry points if you know them. There is absolutely no control over the network
topography, usage or what types of instances connect. It will also occasionally be used
to test various failure scenarios, and there are no availability or service guarantees.
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Adding Radio Interfaces
==============================================
Once you have Reticulum installed and working, you can add radio interfaces with
any compatible hardware you have available. Reticulum supports a wide range of radio
hardware, and if you already have any available, it is very likely that it will
work with Reticulum. For information on how to configure this, see the
:ref:`Interfaces<interfaces-main>` section of this manual.
If you do not already have transceiver hardware available, you can easily and
cheaply build an :ref:`RNode<rnode-main>`, which is a general-purpose long-range
digital radio transceiver, that integrates easily with Reticulum.
To build one yourself requires installing a custom firmware on a supported LoRa
development board with an auto-install script. Please see the :ref:`Communications Hardware<hardware-main>`
chapter for a guide. If you prefer purchasing a ready-made unit, you can refer to the
:ref:`list of suppliers<rnode-suppliers>`. For more information on RNode, you can also
refer to these additional external resources:
* `How To Make Your Own RNodes <https://unsigned.io/how-to-make-your-own-rnodes/>`_
* `Installing RNode Firmware on Compatible LoRa Devices <https://unsigned.io/installing-rnode-firmware-on-supported-devices/>`_
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* `Private, Secure and Uncensorable Messaging Over a LoRa Mesh <https://unsigned.io/private-messaging-over-lora/>`_
* `RNode Firmware <https://github.com/markqvist/RNode_Firmware/>`_
If you have communications hardware that is not already supported by any of the
:ref:`existing interface types<interfaces-main>`, but you think would be suitable for use with Reticulum,
you are welcome to head over to the `GitHub discussion pages <https://github.com/markqvist/Reticulum/discussions>`_
and propose adding an interface for the hardware.
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Develop a Program with Reticulum
===========================================
If you want to develop programs that use Reticulum, the easiest way to get
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started is to install the latest release of Reticulum via pip:
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.. code::
pip3 install rns
The above command will install Reticulum and dependencies, and you will be
ready to import and use RNS in your own programs. The next step will most
likely be to look at some :ref:`Example Programs<examples-main>`.
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For extended functionality, you can install optional dependencies:
.. code::
pip3 install pyserial netifaces
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Further information can be found in the :ref:`API Reference<api-main>`.
Participate in Reticulum Development
==============================================
If you want to participate in the development of Reticulum and associated
utilities, you'll want to get the latest source from GitHub. In that case,
don't use pip, but try this recipe:
.. code::
# Install dependencies
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pip3 install cryptography pyserial netifaces
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# Clone repository
git clone https://github.com/markqvist/Reticulum.git
# Move into Reticulum folder and symlink library to examples folder
cd Reticulum
ln -s ../RNS ./Examples/
# Run an example
python3 Examples/Echo.py -s
# Unless you've manually created a config file, Reticulum will do so now,
# and immediately exit. Make any necessary changes to the file:
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nano ~/.reticulum/config
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# ... and launch the example again.
python3 Examples/Echo.py -s
# You can now repeat the process on another computer,
# and run the same example with -h to get command line options.
python3 Examples/Echo.py -h
# Run the example in client mode to "ping" the server.
# Replace the hash below with the actual destination hash of your server.
python3 Examples/Echo.py 174a64852a75682259ad8b921b8bf416
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# Have a look at another example
python3 Examples/Filetransfer.py -h
When you have experimented with the basic examples, it's time to go read the
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:ref:`Understanding Reticulum<understanding-main>` chapter. Before submitting
your first pull request, it is probably a good idea to introduce yourself on
the `disucssion forum on GitHub <https://github.com/markqvist/Reticulum/discussions>`_,
or ask one of the developers or maintainers for a good place to start.
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Platform-Specific Install Notes
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==============================================
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Some platforms require a slightly different installation procedure, or have
various quirks that are worth being aware of. These are listed here.
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Android
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^^^^^^^^^^^^^^^^^^^^^^^^
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Reticulum can be used on Android in different ways. The easiest way to get
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started is using an app like `Sideband <https://unsigned.io/sideband>`_.
For more control and features, you can use Reticulum and related programs via
the `Termux app <https://termux.com/>`_, at the time of writing available on
`F-droid <https://f-droid.org>`_.
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Termux is a terminal emulator and Linux environment for Android based devices,
which includes the ability to use many different programs and libraries,
including Reticulum.
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To use Reticulum within the Termux environment, you will need to install
``python`` and the ``python-cryptography`` library using ``pkg``, the package-manager
build into Termux. After that, you can use ``pip`` to install Reticulum.
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From within Termux, execute the following:
.. code::
# First, make sure indexes and packages are up to date.
pkg update
pkg upgrade
# Then install python and the cryptography library.
pkg install python python-cryptography
# Make sure pip is up to date, and install the wheel module.
pip install wheel pip --upgrade
# Install Reticulum
pip install rns
If for some reason the ``python-cryptography`` package is not available for
your platform via the Termux package manager, you can attempt to build it
locally on your device using the following command:
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.. code::
# First, make sure indexes and packages are up to date.
pkg update
pkg upgrade
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# Then install dependencies for the cryptography library.
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pkg install python build-essential openssl libffi rust
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# Make sure pip is up to date, and install the wheel module.
pip install wheel pip --upgrade
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# To allow the installer to build the cryptography module,
# we need to let it know what platform we are compiling for:
export CARGO_BUILD_TARGET="aarch64-linux-android"
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# Start the install process for the cryptography module.
# Depending on your device, this can take several minutes,
# since the module must be compiled locally on your device.
pip install cryptography
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# If the above installation succeeds, you can now install
# Reticulum and any related software
pip install rns
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It is also possible to include Reticulum in apps compiled and distributed as
Android APKs. A detailed tutorial and example source code will be included
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here at a later point. Until then you can use the `Sideband source code <https://github.com/markqvist/sideband>`_ as an example and startig point.
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ARM64
^^^^^^^^^^^^^^^^^^^^^^^^
On some architectures, including ARM64, not all dependencies have precompiled
binaries. On such systems, you may need to install ``python3-dev`` before
installing Reticulum or programs that depend on Reticulum.
.. code::
# Install Python and development packages
sudo apt update
sudo apt install python3 python3-pip python3-dev
# Install Reticulum
python3 -m pip install rns
Raspberry Pi
^^^^^^^^^^^^^^^^^^^^^^^^^
It is currently recommended to use a 64-bit version of the Raspberry Pi OS
if you want to run Reticulum on Raspberry Pi computers, since 32-bit versions
don't always have packages available for some dependencies.
While it is possible to install and run Reticulum on 32-bit Rasperry Pi OSes,
it will require manually configuring and installing some packages, and is not
detailed in this manual.
Fedora
^^^^^^^^^^^^^^^^^^^^^^^^
On Fedora, ``pip`` installation may fail with an error message, since the ``netifaces``
package cannot be installed natively via ``pip``. This can be resolved by installing
the ``python3-netifaces`` package via ``dnf`` first:
.. code::
sudo dnf install python3-netifaces
Alternatively, you can install basic development packages, which will allow
``pip`` to install any required packages from source:
.. code::
sudo dnf groupinstall "Development Tools" "Development Libraries"
Debian Bookworm
^^^^^^^^^^^^^^^^^^^^^^^^
On versions of Debian released after April 2023, it is no longer possible
to use ``pip`` to install packages onto your system. Unfortunately, you will need to
use the replacement ``pipx`` command instead, which places installed packages in an
isolated environment. This should not negatively affect Reticulum, but installation
via this method is not fully tested yet.
.. code::
# Install pipx
sudo apt install pipx
# Make installed programs available on the command line
pipx ensurepath
# Install Reticulum
pipx install rns
Ubuntu Lunar
^^^^^^^^^^^^^^^^^^^^^^^^
On versions of Ubuntu released after April 2023, it is no longer possible
to use ``pip`` to install packages onto your system. Unfortunately, you will need to
use the replacement ``pipx`` command instead, which places installed packages in an
isolated environment. This should not negatively affect Reticulum, but installation
via this method is not fully tested yet.
.. code::
# Install pipx
sudo apt install pipx
# Make installed programs available on the command line
pipx ensurepath
# Install Reticulum
pipx install rns
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Pure-Python Reticulum
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==============================================
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In some rare cases, and on more obscure system types, it is not possible to
install one or more dependencies
On more unusual systems, and in some rare cases, it might not be possible to
install or even compile one or more of the above modules. In such situations,
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you can use the ``rnspure`` package instead of the ``rns`` package, or use ``pip``
with the ``--no-dependencies`` command-line option. The ``rnspure``
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package requires no external dependencies for installation. Please note that the
actual contents of the ``rns`` and ``rnspure`` packages are *completely identical*.
The only difference is that the ``rnspure`` package lists no dependencies required
for installation.
No matter how Reticulum is installed and started, it will load external dependencies
only if they are *needed* and *available*. If for example you want to use Reticulum
on a system that cannot support ``pyserial``, it is perfectly possible to do so using
the `rnspure` package, but Reticulum will not be able to use serial-based interfaces.
All other available modules will still be loaded when needed.
**Please Note!** If you use the `rnspure` package to run Reticulum on systems that
do not support `PyCA/cryptography <https://github.com/pyca/cryptography>`_, it is
important that you read and understand the :ref:`Cryptographic Primitives <understanding-primitives>`
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section of this manual.