Bash for multiple accounts with auto-gen passwords
Hello,
I am studying few things on unux and scripting. I need a script to create bulk users in unux. I need some assistance from you for creating 100 or more User IDs using a bash script:
Here's my requirements:
1. I need to create 100 or even more user ids of different naming
conventions. So, I would like to have a separate file(Example:
usernames.txt) where I can paste the user ids, Name for Each ID, Group Name
or GID, Serial Number) and call that file in the script
2. The script should contain the block of code that will auto-generate
random 8-character long alphanumeric and mixed-case passwords without
special characters or symbols(Something like
for each ID and these system-generated passwords should be saved in a different file after the script is run. (Example:
passwords.txt)
I googled but couldn't find a solid script for my above requirements.
Hi,
I am trying to setup account locking in Solaris 9.
I have made the changes in /etc/default/login where
RETRIES=5 and
SYSLOG_FAILED_LOGINS=5
and in /etc/user_attr I am having:
test_user::::lock_after_retries=yes
Still I am not able to lock test_user after successive
unsuccessful... (1 Reply)
I'm finding the following command very tedious to type in all the time, so I created a one line bash script called mount.bash with the following contents:
mount -t cifs //mark/C\$ -o unc=//mark\\C$,ip=10.1.1.33,user=Administrator,password=$1 /mnt/mark
I don't like the fact that I have to put... (5 Replies)
General Question: If a script calls multiple external programs (external to the script, but still on unix), where do the return codes go? Let's say one of external programs fails, does the entire script fail and send a non-zero return code to the job scheduling software, or is the return code sent... (1 Reply)
hello ppl, someone must be able to help with this --> I have an old NCR tower 32 with an ADDS terminal running a unix version 020102 (Im not sure if thats correct but its unix for sure). I have no user names and no passwords and need to login to read a tape. Is there any way to do that? I hear... (3 Replies)
Hello, here is my problem:
I have 20 machines that need to SSH into 1 machine throughout the day. The issue is every time I go through the process of putting my keys from one of the computers that needs to SSH to the server that needs to accept all the incoming SSH's it overrides the last one.
... (6 Replies)
Hi,
this question is not specially unix related, but I expect advanced and expert unix users to have a solution for this, and I've found no other subforum that fits ;)
what do you use to store accounts, customer ids, ip addresses, users and specially passwords, to access them from... (6 Replies)
Hello Experts,
Need some direction on creating shell script for following environment:
We have about 20 people in the team working as Oracle DBA's (sysdba's and appdba's). Total Servers which is a mix of Unix and Linux are 200. We do not have Root user access on any of the servers and... (3 Replies)
Hey guys, I'm trying to make a bash script to do password generation.
The script takes 2 arguments, number of characters and number of passes to generate, but I can't get the loop to work properly.
#!/bin/bash
echo
echo
echo -ne "Password length:"
read pwd_length
echo
echo -ne "Number of... (6 Replies)
Discussion started by: 3therk1ll
6 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)