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I'm experimenting with using NIS for centralizing the user management for a network of approx 20 servers.

I've got an NIS client and server working, and can ssh to the client machine and successfully log in, but only using a password. I'd like to be able to use public key authentication - how might I do this?

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What does PubkeyAuthentication say in your sshd_config (default being yes)? Home directories being mounted properly? ~/.ssh/authorized_keys? –  andol Aug 17 '10 at 10:57
    
public key auth worked on client machine prior to making that machine use NIS. Your second point probably illustrates where I'm going wrong, as I'm not using NFS. I was hoping there was some way the SSH daemon could obtain authorized_keys over NIS? –  Paul Dixon Aug 17 '10 at 11:25

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Sorry, AFAIK you can't distribute ssh keys over NIS - they live in ~/.ssh/authorized_keys. So NFS-mounted homedirs would do it. Or you could set up replication (presumably of just .ssh directories or others you choose) using something like unison.

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I think maybe NIS isn't best suited to my needs, am looking at Puppet as an alternative way of providing centralized user administration.

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