> For the complete documentation index, see [llms.txt](https://testnet-docs.gitbook.io/cardano-testnets/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://testnet-docs.gitbook.io/cardano-testnets/cardano-node-installation.md).
# Cardano node installation
Excellent guides exist about this, so no need for repetition. Please refer to [Coincashew](https://www.coincashew.com/coins/overview-ada/guide-how-to-build-a-haskell-stakepool-node#7-create-startup-scripts) for more information.
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**Pre-compiled binaries** for ARM-based architectures have been provided by the lovely bunch at[ Armada Alliance](https://armada-alliance.com/), and can be found [here](https://github.com/armada-alliance/cardano-node-binaries).
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### Testnet environment node configuration files:
The full complement of configuration files is available [here](https://book.world.dev.cardano.org/environments.html).
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**Please note:** aside from getting the correct configs, you must remember to assign the --testnet-magic \ flag instead of --mainnet whenever needed.
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**Please note:** for your nodes to communicate correctly you will need to add the node port you assign during the build, both to firewalld and OCI Security List. [This is similar to what you did for ssh here](/cardano-testnets/oracle-cloud/steps-to-harden-instance/change-ssh-port.md).
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**Success:** once you are done with your first node, rinse and repeat for the others.
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