How to set no password for unix users

[san_intel3]

How to set up no password for any user on HP-UX server? Like bin,adm which dont have any password..(no password accounts) Is there any command for it?

[Torsten.]

Hi,

for many admins the use of telnet is a security concern even if a password is used.
They consider to use an implementation of ssh instead (also password-less, but based on keys).

What should be a reason to set up telnet access without passwords???

Or do I understand the question wrong and you want to disable telnet at all?

[marvik]

Hi,

You can use ssh for the same.I think this document should help you.Obviously u should have ssh installed

Cheers
Marvik

[Jeff_Traigle]

You can use "passwd -l" to lock an account.

Saying this makes an account have no password is not really accurate. An account can have no password by having a blank password field in /etc/passwd or the TCB database. This will allow the user to login without entering a password. A very undesirable thing to do.

With a locked account, the user cannot login at all. The password field is set to *, which doesn't match any password hash. This is how the system accounts you mentioned are configured.

[Court Campbell]

I guess my first question would be, "Why?". Next I would be curious to know how the users connect. Are they using telnet or SSH? Are they connecting via Windows, or via a UNIX/Linux client? If the answer is ssh , you can search Google for how to use ssh with no password. Here is one site a got from a Google search:

http://blog.johnjosephbachir.org/2004/06/25/sshssh2-no-password-authentication/

Now I am somewhat biased about a pass-phrase. I think a pass-phrase should always be used. You have to look at a pass-phrase differently than a password. A pass-phrase doesn't change whereas most passwords expire due to company policy.

But all this is really informational until you let us know why you (need to/want to) do this. Making a password blank is not a smart thing to do, unless of course it is not network accessible and it does nothing of importance.