Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

unix2_chkpwd(8) [suse man page]

UNIX2_CHKPWD(8) 						 Linux-PAM Manual						   UNIX2_CHKPWD(8)

unix2_chkpwd - helper binary that verifies the password of the current user SYNOPSIS
/sbin/unix2_chkpwd servicename username DESCRIPTION
unix2_chkpwd is a helper program for applications that verifies the password of the current user. It is not intended to be run directly from the command line and logs a security violation if done so. It is typically installed setuid root or setgid shadow and called by applications, which only wishes to do an user authentification and nothing more. OPTIONS
unix2_pwdchk requires the following arguments: pam_service The name of the service using unix2_chkpwd. This is required to be one of the services in /etc/pam.d username The name of the user whose password you want to verify. INPUTS
unix2_pwdchk expects the password via stdin. RETURN CODES
unix2_chkpwd has the following return codes: 1 unix2_chkpwd was inappropriately called from the command line or the password is incorrect. 0 The password is correct. HISTORY
Written by Olaf Kirch loosely based on unix_chkpwd by Andrew Morgan SEE ALSO
pam(8) AUTHOR
Emily Ratliff. Linux-PAM 0.76 2003-03-21 UNIX2_CHKPWD(8)

Check Out this Related Man Page

PAM_WARN(8)							 Linux-PAM Manual						       PAM_WARN(8)

pam_warn - PAM module which logs all PAM items if called SYNOPSIS DESCRIPTION
pam_warn is a PAM module that logs the service, terminal, user, remote user and remote host to syslog(3). The items are not probed for, but instead obtained from the standard PAM items. The module always returns PAM_IGNORE, indicating that it does not want to affect the authentication process. OPTIONS
This module does not recognise any options. MODULE TYPES PROVIDED
The auth, account, password and session module types are provided. RETURN VALUES
PAM_IGNORE This module always returns PAM_IGNORE. EXAMPLES
#%PAM-1.0 # # If we don't have config entries for a service, the # OTHER entries are used. To be secure, warn and deny # access to everything. other auth required other auth required other account required other account required other password required other password required other session required other session required SEE ALSO
pam.conf(5), pam.d(5), pam(7) AUTHOR
pam_warn was written by Andrew G. Morgan <>. Linux-PAM Manual 06/04/2011 PAM_WARN(8)
Man Page

15 More Discussions You Might Find Interesting

1. Programming

Who is the current user

How could I get the username and password of user, who started this programm? (6 Replies)
Discussion started by: szzz
6 Replies

2. Shell Programming and Scripting

password in ascript

how to set password for a script i have a script called logscript. i want to set the username and password for that. when i run the script it should ask me the username and passowrd . any idea in that (2 Replies)
Discussion started by: ali560045
2 Replies

3. Solaris

help adding a new user/password

I just installed Solaris 10 yesterday and I need to create a new username and password. I'm new to the system and I have yet to learn my way around. I appreciate all help and thank you in advance. (5 Replies)
Discussion started by: bones
5 Replies

4. Cybersecurity

Specify password in SFTP command

Hi, How can I specify a password on the scp command line so that it should not prompt for the password? Shabu (3 Replies)
Discussion started by: shabu
3 Replies

5. UNIX for Advanced & Expert Users

password verification verify password of a user for only first 8 characters

Helo , I m using linux pam library for user and its password authentication. I m creating new user and giving its password.I m giving password of 10 when I login in as that newly created user its ask me $ su - ram Password: You are required to change your password immediately... (12 Replies)
Discussion started by: amitpansuria
12 Replies

6. Solaris

problem with ps command

Hi all I use to run sql loader inside a script with usename and password written in syntax. Now when I use 'ps' command to know about the status of loading, it also shows username and password that I don't want to share with someone who is sitting with me. If you have any idea except encryption... (1 Reply)
Discussion started by: sanjay1979
1 Replies

7. HP-UX

command su : enter directly

Hi, a simple question : How can I sent user and password to the command su. I need this for a script, but the problem is the command su wait for the password. Thanks. (2 Replies)
Discussion started by: mvaquerm
2 Replies

8. UNIX for Advanced & Expert Users

How to use SFTP from command line without entering user and password

I would like to use SFTP from command line without entering userid and password. Here is what I have gathered and did. 1) Create a public and private key pair for the protocol you want to use. To create a key pair for use by SSH2, enter: ssh-keygen -t dsa I did that and got... (7 Replies)
Discussion started by: Hangman2
7 Replies

9. Red Hat

setup sudo for cmd exec w/o password

i need to set up a user to execute a restricted command as another user and to be able to do so without entering a password. I understand the security concerns but let's not go there, unless you are really compelled to do so... The directive to permit is that I believe should work and did add to... (2 Replies)
Discussion started by: twk
2 Replies

10. Programming

code for checking username char is not present in password.

hi friends , i need c code for my app, in my app the user can create the new user for the system, while creating the new user ,i try to include the condition the user name is not present in password. my exe requrment is : the user name char is not present in password,if the password... (6 Replies)
Discussion started by: vasu28
6 Replies

11. AIX

static password for a user in aix

Hi i have a user named "sybase" in my aix box ? i need a script to be run every minute which will always make the password of the user "sybase" to be set as : dbadmin even if root user changes the password of the user, the script should run via cron and again set the password of the user sybase... (3 Replies)
Discussion started by: newtoaixos
3 Replies

12. UNIX for Dummies Questions & Answers

How do you reset username/password

Picked up a 3b2 running System V. Works fine, but it requires a username and password. Is the username "root" or "sysadm"? How do I find out and how to I reset it or bypass it? Thanks. (2 Replies)
Discussion started by: TanRuNomad
2 Replies

13. HP-UX

su command clarification

Hi, I want to use the "SU" command in script it is asking me to enter the password manually. pleas the say the syntax of su command in single line that includes username/password. :) (3 Replies)
Discussion started by: vigneshwaran007
3 Replies

14. OS X (Apple)

OSX verify username and password in one line

I'm writing a script that has the need to verify the current user's username and password. I'm not entirely sure how to do this. I've read some things on "dscl" but am not sure that's the correct route for me to go. The one condition i have is that i really need to have the verification happen... (4 Replies)
Discussion started by: TheDrizzle
4 Replies

15. Linux

Password hardening using pam

Hi We have a requirement to vary the minimum password criteria by the group to which a user belongs. For example a standard user should have a password with a minimum length of 12 and containing a mix of characters whereas an administrator should have a password with a minimum length of 14... (1 Reply)
Discussion started by: gregsih
1 Replies