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I am trying to set up a guest user that allows ssh access without a password AND without a keyfile. All my searches turns up people trying to set up password-less entry with a keyfile. Passwordless and keyless SSH guest access. Ask Question Asked 4 years, 6 months ago. Active 1 year, 5 months ago. Viewed 5k times 6. 4 Debug Points to check why your Keyless SSH is not working May 17, 2015 August 6, 2018 by Varun Setting up keyless SSH is quite easy on CentOS but still sometimes there are chances that after following all the steps mentioned in How to setup Keyless SSH with non root users in CentOS post it is still not setup properly.

I am trying to set up a guest user that allows ssh access without a password AND without a keyfile.

All my searches turns up people trying to set up password-less entry with a keyfile. This is not what I'm looking for.

I would settle for just having a blank password, but I can't get that working either; if I delete the user's password, the SSH daemon won't allow any access. I've set 'PermitEmptyPasswords yes' in the config file and restarted the service.

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I'm running Ubuntu 14.04.1 LTS.

Xen2050

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What you're looking for is anonymous SSH access. I found an article for SFTP, which applies to SSH too, if you leave out SFTP-specific stuff:

1. Create a new user:

2. Make the password actually empty:

3. Allow blank passwords for SSH sessions in PAM: edit /etc/pam.d/sshd and replace the line that reads @include common-auth with:

4. Allow blank passwords for SSH sessions of anonymous in /etc/ssh/sshd_config:

5. Restart sshd:

I didn't try it myself, but it looks plausible, since my first thought for the culprit was PAM.

David FoersterDavid Foerster

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