A simple
..... and you are not prompted for the old password. You will be prompted twice for the new password, so verification is taken care of too. Additionally, sudo will write to the syslog for your auditors to drool over.
I hope that this helps,
Robin
Liverpool/Blackburn
UK
Hi Moderators,
I forgot the login password and am accessing the forum page through save form password credentials.
Could you please reset my password ?
Thanks,
:) (5 Replies)
All,
I have a Solaris 9 system and I would like to create a script that would reset the password of a local user to something specific on a daily basis.
Someone suggested the following:
passwd --stdin username < passwd_file
However, this doesn't work on Solaris.
Does anyone know of... (3 Replies)
Discussion started by: soliberus
3 Replies
3. Forum Support Area for Unregistered Users & Account Problems
Why would a password reset, a provided numerical value thru email, not be accepted when trying to log in with it? I have expired the 5 login attempts twice with still no acceptance. thanks for the help (3 Replies)
Can anyone tell me if it is possible to have cron change your password every month from an encrypted list of passwords?I have several servers I hardly ever go near but when I do the password has always expired and it takes a long time to get the administrators to reset it for me. I was thinking... (4 Replies)
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)
So my dad bought an iMac from my mom, but she does not know the admin password anymore. I read on the apple forums that I should look here for help on resetting the password. The iMac runs OSX 10.6.3. I would really appreciate any help. Thanks (3 Replies)
Hello -
I want to reset user password in multiple server via root ID. I have passwordless authentication for root between all the servers.
I an use loop to reset the password. I am using below command in loop
echo mypassword | passwd username --stdin
However, if anyone sees history - he... (5 Replies)
Installed Solaris 11.3 Gnome Desktop
It wouldn't let me log on at lock screen after first reboot.
It finally relented and let me in after about 20 logon failures.
How do I reset password now that I am in? (10 Replies)
Discussion started by: Solaris User
10 Replies
10. 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 LINUX
sudo_root
sudo_root(8) System Manager's Manual sudo_root(8)NAME
sudo_root - How to run administrative commands
SYNOPSIS
sudo command
sudo -i
INTRODUCTION
By default, the password for the user "root" (the system administrator) is locked. This means you cannot login as root or use su. Instead,
the installer will set up sudo to allow the user that is created during install to run all administrative commands.
This means that in the terminal you can use sudo for commands that require root privileges. All programs in the menu will use a graphical
sudo to prompt for a password. When sudo asks for a password, it needs your password, this means that a root password is not needed.
To run a command which requires root privileges in a terminal, simply prepend sudo in front of it. To get an interactive root shell, use
sudo -i.
ALLOWING OTHER USERS TO RUN SUDO
By default, only the user who installed the system is permitted to run sudo. To add more administrators, i. e. users who can run sudo, you
have to add these users to the group 'admin' by doing one of the following steps:
* In a shell, do
sudo adduser username admin
* Use the graphical "Users & Groups" program in the "System settings" menu to add the new user to the admin group.
BENEFITS OF USING SUDO
The benefits of leaving root disabled by default include the following:
* Users do not have to remember an extra password, which they are likely to forget.
* The installer is able to ask fewer questions.
* It avoids the "I can do anything" interactive login by default - you will be prompted for a password before major changes can happen,
which should make you think about the consequences of what you are doing.
* Sudo adds a log entry of the command(s) run (in /var/log/auth.log).
* Every attacker trying to brute-force their way into your box will know it has an account named root and will try that first. What they do
not know is what the usernames of your other users are.
* Allows easy transfer for admin rights, in a short term or long term period, by adding and removing users from the admin group, while not
compromising the root account.
* sudo can be set up with a much more fine-grained security policy.
* On systems with more than one administrator using sudo avoids sharing a password amongst them.
DOWNSIDES OF USING SUDO
Although for desktops the benefits of using sudo are great, there are possible issues which need to be noted:
* Redirecting the output of commands run with sudo can be confusing at first. For instance consider
sudo ls > /root/somefile
will not work since it is the shell that tries to write to that file. You can use
ls | sudo tee /root/somefile
to get the behaviour you want.
* In a lot of office environments the ONLY local user on a system is root. All other users are imported using NSS techniques such as
nss-ldap. To setup a workstation, or fix it, in the case of a network failure where nss-ldap is broken, root is required. This tends to
leave the system unusable. An extra local user, or an enabled root password is needed here.
GOING BACK TO A TRADITIONAL ROOT ACCOUNT
This is not recommended!
To enable the root account (i.e. set a password) use:
sudo passwd root
Afterwards, edit the sudo configuration with sudo visudo and comment out the line
%admin ALL=(ALL) ALL
to disable sudo access to members of the admin group.
SEE ALSO sudo(8), https://wiki.ubuntu.com/RootSudo
February 8, 2006 sudo_root(8)