09-26-2001
user Id vs Password
Hello out there in unix.com land. I am Cerberus and this is my first post. I am brand new to Unix and i have a quesiton for you all.
Relating to the Unix Password File Setup, what is:
User ID?
Password?
any insite comparing one to the other as far as specifics would be greatly appreciated.
Thank You
Cerberus
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
All,
I am unable to change a password for the user called : poller
I am logged in as root When I do the following command
passwd poller
New Password:
Permission denied
Whe i enter the new password, it gives the above error.
When i log in as poller and then execute the command, then... (2 Replies)
Discussion started by: rahulrathod
2 Replies
2. AIX
I have 02 servers:
- Linux RHEL AS 3 (server1)
- AIX 5.2 (server2)
Running the command rsh server2 passwd derje from the server1 to change derje user password on server2, give me this error:
3004-709 Error while changing the password for "derje"
Can somebody help me ? (0 Replies)
Discussion started by: mayge
0 Replies
3. UNIX for Advanced & Expert Users
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 characters.now 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
4. UNIX Desktop Questions & Answers
Hi
Can anyone help me with a query? Is a password mandatory for the root user. I'm studying for Solaris SCSAS and one of the answers implies that it is not.
I've googled but not getting much in the way of an answer.
thanks (2 Replies)
Discussion started by: tmn0004676
2 Replies
5. UNIX for Dummies Questions & Answers
Hi everyone.
I have root acces to an Ubuntu machine.
This machine have several users so, being root, I can access to their account without knowing their password, simply usingsudo su userBut I need to know the password of a specific user, so in this situation, is there a technique to know what is... (3 Replies)
Discussion started by: canduc17
3 Replies
6. Solaris
hi everybody
i cant set password for user (jam)
i tried to
#passwd jam
enter newpasswd :
after enter it showing
passwd : cannot get default domain:internal yp server or client error
i also check cat /etc/shadow file
jam:*:LK*:........
user is locked ... and i... (4 Replies)
Discussion started by: coolboys
4 Replies
7. AIX
Hi Experts,
According to the manual if you want to remove the password for a user account the "password" field in /etc/security/passwd should be set to "*"
So instead of this:
password = 6BqaLx8FeI8os
Should be set to this:
password = *
But when I run the following command in my AIX... (5 Replies)
Discussion started by: livehho
5 Replies
8. Shell Programming and Scripting
Can someone help in writing some script through which I can transfer file (scp) from root user in abc server to crt user in hfg server and can give the crt user password in script itself so that it doesn't prompt me every time for password (4 Replies)
Discussion started by: Moon1234
4 Replies
9. Linux
hi
I am not able to change user password from root user.
although it is saying updated successfully.
but still I am not able to login direct to abc user.
however I can login from root user by using su - abc
# passwd abc
Changing password for user abc.
New password:
BAD PASSWORD: it... (2 Replies)
Discussion started by: scriptor
2 Replies
passwd(4) Kernel Interfaces Manual passwd(4)
NAME
passwd - Password files
DESCRIPTION
A passwd file is a file consisting of records separated by newline characters, one record per user, containing seven colon (:) separated
fields. These fields are as follows:
User's login name. The default length is 8 characters. User's encrypted password. User's ID User's login group ID General information
about the user User's home directory User's login shell
The name field is the login used to access the computer account, and the uid field is the number associated with it. They should both be
unique across the system (and often across a group of systems) since they control file access.
While it is possible to have multiple entries with identical login names and/or identical user gid's, it is usually a mistake to do so.
Routines that manipulate these files will often return only one of the multiple entries, and that one by random selection.
The login name must never begin with a hyphen (-); also, it is strongly suggested that neither uppercase characters or dots (.) be part of
the name, as this tends to confuse mailers. No field may contain a colon (:) as this has been used historically to separate the fields in
the user database.
The password field is the encrypted form of the password. If the password field is empty, no password is required to gain access to the
machine. Because these files contain the encrypted user passwords, they should not be readable by anyone without appropriate privileges.
Use the command to edit password entries. This ensures that the hashed password database is rebuilt. If you have enhanced security
installed on your system, the password field contains an asterisk (*). The encrypted password is stored in the user's protected password
database.
The gid field is the group that the user will be placed in upon login. Since the operating system supports multiple groups (see the groups
command) this field currently has little special meaning.
The gecos field normally contains comma (,) separated subfields as follows:
User's full name User's office number User's work phone number User's home phone number
This information is used by the finger command.
The user's home directory is the full UNIX pathname where the user will be placed on login.
The shell field is the command interpreter the user prefers. If the shell field is empty, the Bourne shell (/bin/sh) is assumed.
The allowable values for the UID are unsigned numbers from 0 to 65535.
The command pwck can be used to verify the accuracy of data entered in the passwd file.
EXAMPLES
root:TZVtfX5VbS3KY:0:1:System PRIVILEGED Account,,,:/:/bin/sh adm:*:5:16:Admin Login:/usr/adm:/bin/sh operator:HdgoklKwZOlvU:25:28:System
PRIVILEGED Account,,,:/etc/operator: guest:Nologin:-2:-2:anonymous NFS user:/:/bin/date osfuser:If2eoZ6gmghJo:50002:15:Osf
User:/usr/users/osfuser:/bin/csh marcy:*:201:20:Marcy Swanson,dev,x1234:/usr/users/marcy:/bin/sh
RELATED INFORMATION
Functions: getpwent(3)
Commands: login(1), passwd(1), pwck(8), vipw(8)
Files: prpasswd(4) delim off
passwd(4)