chpasswd works fine noninteractively as root. It just reads the user:pass pairs from stdin. For example, to change xyzzy's password:
Anyone but root needs to authorize themselves with PAM somehow, usually by password. This is as it should be I think. Obviously a powerful bulk password changing tool shouldn't be available to just anyone...
This may vary on your system if your PAM settings are different.
Hi,
I need to know if this command
echo NEWPASSWORD | passwd --stdin USERNAME
that works fine on Red Hat Linux, is also available on other Unix/Linux machines (AIX, FreeBSD, OpenBSD, SunOS, Mandrake, Debian, Gentoo, Lindows, Slackware, Xandros, HP-UX, IRIX, SCO, MacOS, BSDi ...).
... (2 Replies)
If we have it so users accounts need a new password after 90 days is there a way to also say that after 90 days they need to use a new password and not let them use the same one twice? (2 Replies)
I have installed Solaris 10 x86 in VMware 5.5.I logged in as root user and trying to create new user and also reset the password for existing user, i am getting "Permission Denied Error". I checked the /etc/shadow file, looks fine permission is 400. Earlier i was able to do it but suddenly it... (2 Replies)
Are single quotes allowed in a UNIX password? With my understanding that UNIX interprets single quotes in pairs and has a distinct meaning to the shell that it removes special meaning of all enclosed characters. I wanted to confirm that a single quote within a password would fail for this reason. (4 Replies)
Hi,
How to check whether the single user mode is password protected or not?By default, while entering in to single user mode, Os is not asking for login credentails. How can i enable it. Kindly help
Rgds,
kmvinay (2 Replies)
Hello All,
I'm new to unix and i need the below favour from you.
I have list of 50 unix server. I need to login to all the server one by one and with the same user and password. I will declare the user name and password globally in the script.
for example :
servername- hyperV
user name... (4 Replies)
Hi experts, i got a 4-port Adapter card on VIOS and would like to configure 4SEA for 4 difference segment IP client's LPAR use, first SEA succeed to be configured on ent0 but once second SEA configured, first SEA fail to be connected. Any issues i need to be concerned in order to configure 4 SEA on... (8 Replies)
Hi,
I am unable to set the password remotely. I am using the script as below:
ep=`echo "$p" | /usr/lbin/makekey`
ssh -t $i "/usr/local/bin/sudo useradd -c "$user_c" -m -d /home/$user_id -s /bin/ksh $user_id; /usr/local/bin/sudo /usr/sam/lbin/usermod.sam -F -p $ep $user_id"
The... (0 Replies)
I have a Solaris-10 non global zone, on which I am not able to reset password, while counts are matching in /etc/passwd and /etc/shadow. I tried searching its solution in various forums, but nothing is working
# id -a oemagent
uid=56605(oemagent) gid=56595(tess) groups=56595(tess)
# passwd -s... (2 Replies)
SULOGIN(8) System Administration SULOGIN(8)NAME
sulogin - Single-user login
SYNOPSIS
sulogin [options] [tty]
DESCRIPTION
sulogin is invoked by init when the system goes into single user mode.
The user is prompted:
Give root password for system maintenance
(or type Control-D for normal startup):
sulogin will be connected to the current terminal, or to the optional tty device that can be specified on the command line (typically
/dev/console).
After the user exits the single-user shell or presses control-D at the prompt, the system will continue to boot.
OPTIONS -e, --force
If the default method of obtaining the root password via getpwnam(3) from the system fails, manually examine /etc/passwd and
/etc/shadow to get the password. If they are damaged or nonexistent, sulogin will start a root shell without asking for a password.
Only use the -e option if you are sure the console is physically protected against unauthorized access.
-p, --login-shell
Specifying this option causes sulogin to start the shell process as a login shell.
-t, --timeout seconds
Specify the maximum amount of time to wait for user input. By default, sulogin will wait forever.
-h, --help
Print a help message.
-V, --version
Output version.
ENVIRONMENT VARIABLES
sulogin looks for the environment variable SUSHELL or sushell to determine what shell to start. If the environment variable is not set, it
will try to execute root's shell from /etc/passwd. If that fails it will fall back to /bin/sh.
AUTHOR
sulogin was written by Miquel van Smoorenburg for sysvinit and later ported to util-linux by Dave Reisner and Karel Zak.
AVAILABILITY
The sulogin command is part of the util-linux package and is available from Linux Kernel Archive <ftp://ftp.kernel.org/pub/linux/utils
/util-linux/>.
util-linux Jul 2012 SULOGIN(8)