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Blank Password (Solaris 10)

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Operating Systems Solaris Blank Password (Solaris 10)
# 1  
Old 06-29-2011
Blank Password (Solaris 10)
Hello, I have a doubt about the accounts.

With a "grep" to file "shadow" get the accounts have no password:

Quote:
grep ': NP *:' / etc / shadow
The output is:

Quote:
daemon:NP:6445::::::
bin:NP:6445::::::
sys:NP:6445::::::
adm:NP:6445::::::
lp:NP:6445::::::
uucp:NP:6445::::::
nuucp:NP:6445::::::
smmsp:NP:6445::::::
postgres:NP:::::::
However, if I do a "su <bin, sys, etc>" request password.

What is the true state of accounts?

The file "shadow" are as follows:

Quote:
daemon:NP:6445::::::
bin:NP:6445::::::1
sys:NP:6445::::::
adm:NP:6445::::::1
lp:NP:6445::::::
uucp:NP:6445::::::1
nuucp:NP:6445::::::
smmsp:NP:6445::::::
listen:*LK*:::::::
gdm:*LK*:::::::
webservd:*LK*:::::::
postgres:NP:::::::1

I appreciate any response.

Greetings.

Musul.
# 2  
Old 06-29-2011
Quote:
Originally Posted by musul
However, if I do a "su <bin, sys, etc>" request password.

What is the true state of accounts?
They're not available to be logged into. The only thing that uses them would be system daemons, which switch to it from root with setuid/seteuid type system calls, bypassing the login step entirely.

su's not going to just tell you which accounts are unavailable though!
# 3  
Old 06-29-2011
OK, thank for answer.
I dont have security risk with the state "NP" of the default accounts ?
Is recomended change state of the default accounts from "NP" to LK ?

(if is necesary, I make other thread)

Thanks!!

Musul.
# 4  
Old 06-29-2011
Quote:
Originally Posted by musul
OK, thank for answer.
I dont have security risk with the state "NP" of the default accounts ?
You've seen for yourself. You can't login to them.
This User Gave Thanks to Corona688 For This Post:
musul
# 5  
Old 06-30-2011
Quote:
Originally Posted by Corona688
You can't login to them.
To be more precise: You can't login to them using a password.
What you still can is:
  • root can use su to change to that user
  • authorized users can use sudo (if installed) to change to that user
  • if configured, users can login to that user using ssh with a public/private key
  • the user can have cronjobs and run services
NP-users are best suited for running services.

LK-users can't have cronjobs and it is not possible to login to them with a public/private key.
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