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How to configure a ssh-server for user and password less port forwarding ?

Balbir Singh
Balbir Singh asked
Last Modified: 2020-01-12
I test that we can configure a ssh server to let a specific user, say 'demo' to login without any password with below configuration

PasswordAuthentication yes
PermitEmptyPasswords yes

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I have also configured this user to have no access to shell and change shell in /etc/passwd to

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for user demo. I would like to understand security concern while I have this config in place. I simply want to use this user for port forwarding purpose and also I do not want to use public/private key for this purpose.

Or is there a way that I can have a ssh-server configured to use port forwarding and ssh client need not to use any user or password?

Best Regards
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