09-27-2006
Quote:
Originally Posted by vangalli
could you please give me the syntax for that........... i need it very urgent........
That depends on how and where you wish to give password. For example, to the passwd command, to ftp, to telnet, to ssh, etc.
You may have to use Expect in some cases.
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I'm tasked to change a user's password on multiple Linux systems (RH v3). I though copying the encrypted password from one Linux /etc/shadow file to another would work but I was wrong.
The long term solution is to establish an openLDAP Directory service, but for now I'm stuck with a manual... (1 Reply)
Discussion started by: benq70
1 Replies
2. AIX
The sshd_config file shows as following:
#RSAAuthentication yes
#PubkeyAuthentication yes
#AuthorizedKeysFile .ssh/authorized_keys
It looks like user cannot ssh to this server without password. However, I can do it from other AIX server to this server.
So, how to know if this server... (2 Replies)
Discussion started by: rainbow_bean
2 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. Shell Programming and Scripting
Hi Friends.
I am new to scripting now i want to change the root password using the script with standard password.
which is the easy scripting to learn for the beginner, Thanks in advance. (2 Replies)
Discussion started by: kurva
2 Replies
5. Solaris
Hi Gurus
I have a few Sol 5.9 servers and i have enabled password less authentication between them for my user ID. Often i have found that when my password has expired,the login fails.
Resetting my password reenables the keys.
Do i need to do something to avoid this scenario or is this... (2 Replies)
Discussion started by: Renjesh
2 Replies
6. Red Hat
Hi All,
I got a definition on /etc/login.defs
PASS_MAX_DAYS 41
and on /etc/shadow, most of the user id fifth column (max age) is 40.
Is that different policy or not? If it is the same policy, then the above policy don't match, right.
Thanks for any comment you may add.
Cheers,... (2 Replies)
Discussion started by: itik
2 Replies
7. Red Hat
Hello all,
If anyone has time, I have a few questions:
How do I do the following in Linux. We are using Red Hat and Oracle Enterprise Linux, which is based on Red Hat too.
1. How to lock the account after a few (like 3) invalid password attempts?
2. How do you lock a screen after 30... (1 Reply)
Discussion started by: nstarz
1 Replies
8. UNIX for Dummies Questions & Answers
Hi
We send *.csv with sensitive data to our customers. Our customers open those files with Excel.
A new requirement is that we password protect those CSV files.
I thought to pack them with ZIP and assign a password to the archive.
But Solaris 10 can't encrypt ZIP files.
$ zip -P... (12 Replies)
Discussion started by: slashdotweenie
12 Replies
9. Forum Support Area for Unregistered Users & Account Problems
I was unable to login and so used the "Forgotten Password' process. I was sent a NEWLY-PROVIDED password and a link through which my password could be changed. The NEWLY-PROVIDED password allowed me to login.
Following the provided link I attempted to update my password to one of my own... (1 Reply)
Discussion started by: Rich Marton
1 Replies
LEARN ABOUT CENTOS
passmass
PASSMASS(1) General Commands Manual PASSMASS(1)
NAME
passmass - change password on multiple machines
SYNOPSIS
passmass [ host1 host2 host3 ... ]
INTRODUCTION
Passmass changes a password on multiple machines. If you have accounts on several machines that do not share password databases, Passmass
can help you keep them all in sync. This, in turn, will make it easier to change them more frequently.
When Passmass runs, it asks you for the old and new passwords. (If you are changing root passwords and have equivalencing, the old pass-
word is not used and may be omitted.)
Passmass understands the "usual" conventions. Additional arguments may be used for tuning. They affect all hosts which follow until
another argument overrides it. For example, if you are known as "libes" on host1 and host2, but "don" on host3, you would say:
passmass host1 host2 -user don host3
Arguments are:
-user
User whose password will be changed. By default, the current user is used.
-rlogin
Use rlogin to access host. (default)
-slogin
Use slogin to access host.
-ssh
Use ssh to access host.
-telnet
Use telnet to access host.
-program
Next argument is a program to run to set the password. Default is "passwd". Other common choices are "yppasswd" and "set
passwd" (e.g., VMS hosts). A program name such as "password fred" can be used to create entries for new accounts (when run as
root).
-prompt
Next argument is a prompt suffix pattern. This allows the script to know when the shell is prompting. The default is "# " for
root and "% " for non-root accounts.
-timeout
Next argument is the number of seconds to wait for responses. Default is 30 but some systems can be much slower logging in.
-su
Next argument is 1 or 0. If 1, you are additionally prompted for a root password which is used to su after logging in. root's
password is changed rather than the user's. This is useful for hosts which do not allow root to log in.
HOW TO USE
The best way to run Passmass is to put the command in a one-line shell script or alias. Whenever you get a new account on a new machine,
add the appropriate arguments to the command. Then run it whenever you want to change your passwords on all the hosts.
CAVEATS
Using the same password on multiple hosts carries risks. In particular, if the password can be stolen, then all of your accounts are at
risk. Thus, you should not use Passmass in situations where your password is visible, such as across a network which hackers are known to
eavesdrop.
On the other hand, if you have enough accounts with different passwords, you may end up writing them down somewhere - and that can be a
security problem. Funny story: my college roommate had an 11"x13" piece of paper on which he had listed accounts and passwords all across
the Internet. This was several years worth of careful work and he carried it with him everywhere he went. Well one day, he forgot to
remove it from his jeans, and we found a perfectly blank sheet of paper when we took out the wash the following day!
SEE ALSO
"Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995.
AUTHOR
Don Libes, National Institute of Standards and Technology
7 October 1993 PASSMASS(1)