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I'm using Ubuntu Core for the first time, running a RocketChat server on a Raspberry Pi 3.

In order for anyone outside my home network to be able to use it, I'm trying to install ngrok per instructions in https://github.com/RocketChat/Rocket.Chat.RaspberryPi:

curl https://dl.ngrok.com/ngrok_2.0.19_linux_arm.zip -o ngrok.zip unzip ngrok.zip cd ngrok ./ngrok http 3000

However, I just get this:

-bash: curl: command not found

I've been trying to install either curl or ngrok, and failing at both. Can I only install things that exist in the snap catalogue? How do I solve this? Where can I read more?

Edit: OK, so I can only install snaps, right? Is there any other good solution for anyone outside of my home network to access the RocketChat server?

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Taking from HTTP Request Without curl or wget you can install classic bash shell with

snap install classic --edge --devmode
sudo classic

after start the shell:

sudo apt-get install curl

Unfortunately, at this moment http://dl.ngrok.com doesn't work but in apt-cache you can find ngrok-server. I hope is the same.

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the link to the ngrok zip file is changed,

register to ngrok and follow the instruction to download the correct executale file (for me and you on this page https://ngrok.com/download , linux arm executable)

after unzipping it, follow the instruction on the same page to add your auth token and to start ngrok

./ngrok authtoken myauthtoken

./ngrok http 3000

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