Remotely use root over ssh for unison
Solution 1
You should be able to setup ssh login with keys as you have stated.
Make sure your sshd_config allows root logins
PermitRootLogin without-password
Then copy the generated public-key to /root/.ssh/authorized_keys.
You should be able to login now, just tell unison to use the ssh key you generated.
Solution 2
Sudo can be configured to avoid asking for a password on some or all commands with the NOPASSWD
parameter; but in any case I think it would be simpler to use ssh keys to access the remote system directly as root; after setting up passwordless authentication, unison should be called as follows:
unison a.tmp ssh://username@remotehostname/a.tmp
Elgoog
I would like to say that I am an entrepreneur, but I'm probably more likely a dreamer. I'm a systems administrator constantly learning new things. Linux and Programming are my passions and I am always looking to learn more.
Updated on September 18, 2022Comments
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Elgoog over 1 year
I'm a little confused on how to run unison to sync files with group and owner attributes on an ubuntu system, as you need to be root. But I need to do this remotely and automated. I know I can set up ssh keys and the such for my user but that doesn't matter because I still wont be able to ssh as root to do the changes on the remote system.
I guess my question is; How would I go about using root on the remote system for unison? or is there a way of setting a command for a user to 'auto-run' as root without password?
Or are there any other ways that I could do this?
Any guidance with this is appreciated.
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Sig-IO over 12 yearsYes, you should have an enabled and working root account. The options for 'PermitRootLogin' are 'no', 'yes', and 'without-password'. The last one allowing only logins using ssh-keys.
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Elgoog over 12 yearsworks like a charm, I never knew about the
without-password
so thank you!