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2011-03-12 - Confoo 2011 presentation
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Copy public ssh Id to new host withtout bash redirection

Terminal - Copy public ssh Id to new host withtout bash redirection
cat .ssh/id_dsa.pub | ssh <HOST> "mkdir -p .ssh && tee -a .ssh/authorized_keys"
2012-10-11 12:12:45
User: Valise
Functions: cat ssh
Copy public ssh Id to new host withtout bash redirection


There is 1 alternative - vote for the best!

Terminal - Alternatives

Know a better way?

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What others think

Why not use built in `ssh-copy-id` command?

Comment by linuxrawkstar 131 weeks and 3 days ago

# 1 Does not set the permissions to the .ssh directory (700) or to the authorized_keys file (600).

Many SSH daemons are configured in such a way that permissions must be set in such a manner, else the files are ignored. While this may work great on a home linux box, it does not work for enterprise level *nix networks.

# 2 If the key is already present on the target , it will be duplicated. Again, fine for home use, but not enterprise.

As others have suggested, in the very least, use ssh-copy-id.

ssh-copy-id sets the permissions on the file properly if it does not exist. Unfortunately, it too will make duplicate copies if the key already exists.

I don't have a '1-liner' for this one.

What I do have is a 165 line function that resolves all of these issues and has a 'preview' mode. OFC, commandlinefu is not the place for such a function ;)

Comment by Zhoul 129 weeks and 2 days ago

Your point of view

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