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doc/tips/Decentralized_repository_behind_a_Firewall.mdwn
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If you're anything like me, you have a copy of your annex on a computer running at home¹, set up so you can access it from anywhere like this: If you're anything like me, you have a copy of your annex on a computer running at home¹, set up so you can access it from anywhere like this:
ssh myhome.no-ip.org ssh myhome.no-ip.org
This is totally great! Except, there is no way for your home computer to pull your changes, because there is no onthego.no-ip.org. You can get clunky and use a bare git repository and git push, but there is a better way. This is totally great! Except, there is no way for your home computer to pull your changes, because there is no onthego.no-ip.org. You can get clunky and use a bare git repository and git push, but there is a better way.
First, install openssh-server on your on-the-go computer First, install openssh-server on your on-the-go computer
sudo apt-get install openssh-server sudo apt-get install openssh-server
Then, log into your home computer, with *port forwarding*: Then, log into your home computer, with *port forwarding*:
ssh me@myhome.no-ip.org L 2201:localhost:22 ssh me@myhome.no-ip.org L 2201:localhost:22
Your home computer can now ssh into your on-the-go computer, as long as you keep the above shell running. Presto, you can use the same shell to set up your remote: Your home computer can now ssh into your on-the-go computer, as long as you keep the above shell running. Presto, you can use the same shell to set up your remote:
ssh-keygen -t rsa ssh-keygen -t rsa
ssh-copy-id localhost -p 2201 ssh-copy-id localhost -p 2201
cd ~/annex cd ~/annex
git annex remote add on-the-go ssh://localhost:2201/home/myuser/annex git annex remote add on-the-go ssh://localhost:2201/home/myuser/annex
And run normal annex operations: And run normal annex operations:
git annex sync git annex sync
git annex get on-the-go some/big/file git annex get on-the-go some/big/file
git annex status git annex status
You can add more computers by repeating with a different port, e.g. 2202 or 2203 (or any other). You can add more computers by repeating with a different port, e.g. 2202 or 2203 (or any other).
If you're security paranoid (like me), read on. If you're not, that's it! Thanks for reading! If you're security paranoid (like me), read on. If you're not, that's it! Thanks for reading!
--- paranoid area --- Paranoid Area
---
Note you're granting passwordless access to your on-the-go computer to your home computer. I believe that's all right, as long as: Note you're granting passwordless access to your on-the-go computer to your home computer. I believe that's all right, as long as:
* Your home computer is really in your home, and not at a friend's house or some datacenter * Your home computer is really in your home, and not at a friend's house or some datacenter
@ -46,7 +46,6 @@ In any case, the setup is much, much, much more secure than Dropbox. With Dropbo
* The dropbox software can do anything it likes on your computer, and it's closed source and can't be audited * The dropbox software can do anything it likes on your computer, and it's closed source and can't be audited
* Any dropbox employee can conveiably use your installed dropbox to look at any file on your computer * Any dropbox employee can conveiably use your installed dropbox to look at any file on your computer
* A truly huge amount of eyes connected to incredibly smart brains have looked at openssh and found it secure. Everybody trusts openssh. With dropbox, there is, well, dropbox. Whoever that is. * A truly huge amount of eyes connected to incredibly smart brains have looked at openssh and found it secure. Everybody trusts openssh. With dropbox, there is, well, dropbox. Whoever that is.
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¹ My always-on computer at home is a raspberry pi with a 32GB USB stick. Best self-hosted dropbox you could imagine. ¹ My always-on computer at home is a raspberry pi with a 32GB USB stick. Best self-hosted dropbox you could imagine.