I'm trying to create a user john with default password 'abcdef'. I used the following command.
useradd john -p abcdef
I can't login with the password. in /etc/shadow file I can see the password in clear text format. how I can create a user along with password.
I wish to allow a user to use sudo to run a single command (service app status) to determine if my application app is running, in my sudoers file i have: user ALL= /sbin/service app status I understand that there is a parameter called timestamp_timeout that will set the timeout for the 'user', but requires at least 1 entry of the root password.
I wish to allow the user to do "sudo service app status" and not have to enter the root password ever(maybe once is ok), but still make the user enter the root password for all other root activities. Is there a way to prevent the password entry for this command only and no others?
I followed instructions to enter single user mode by adding single at the end of kernel line but after that it doesn't ask for root password but brings up the sh# prompt. Isn't that supposed to be insecure? I understand for this the grub password can be applied but even after adding "single" it should ask for root password..or it should not..??
View 3 Replies View RelatedI recently used the newusers command to generate several user accounts from a text file. That process seemed to go well until I tried to su into one of the new accounts.
This behavior appears for all the accounts that were created from the text file and the newusers command. It seems that several configuration files that should have been autogenerated for these new users were never created. I was able to confirm this was the problem by copying .bashrc and .bash_profile from a user that was created with the "useradd" command into the /home/newaccount directory. After logging off and logging into the newaccount again, the issue is corrected.For the record, I just read this forum post and I'm looking for an alternative to this. If this is the most efficient way to accomplish my goal, then I'll try the route mentioned in the thread. I'm still open to alternatives.
Still working scanning results, this time with DISA's SRR scripts.More than one scanning package complains about;The UNIX host is bootable in single user mode without a password..So, I assume in /etc/passwd there is an entry that corrects this?what is the specific syntax and where does it go ?
View 2 Replies View RelatedI need to run one command as different user with out a password prompt.
I did this
Code:
one localhost= (two) /usr/bin/whoami
This work but it prompts for password. Is there a way that can be done with NOPASSWD option ?
How to lock the single user mode in linux with a password....??
View 1 Replies View RelatedI need to recover the root password or reset it. For this, I am trying to follow the following steps to get into the single-user mode & where exactly I am getting stuck: 1. Reboot the machine2. Press <esc>3. At the boot loader screen, i have 'Red Hat Enterprise Linux Server ($version info)' highlighted. 4. Simply pressing 'e' (for editing) does not work (does nothing). 5. I have the option to press 'p' to enter boot-loader password and then go into the single user mode.What if I don't know the boot loader password as well & I want to get into the single-user mode WITHOUT using a boot CD? Is this possible? If so, please share the procedure to do so.
View 7 Replies View RelatedCan we set password for linux board's in non-interactive mode.I didn't find suitable option for this in man page.
View 1 Replies View RelatedI am trying to change the password of a user by 'usermod' command. let us assume that there is a user named "test" to change the password of the user we can type "passwd test" which will change the password of the user "test". I want to change the password similarly using the command "usermod". when I give usermod -p yahoo test"(yahoo is the password which I want to set), I am not getting any errors but when I switch user to test, I am unable to login.
View 1 Replies View RelatedI want to fix my disks with fsck but using sudo init 1 is not allowing me in. It shuts my services down, then gives a "Give root password for maintenance" prompt. I've tried my password, but it rejects it.
View 3 Replies View Relatedin ubuntu 10.04 how to get into single user mode with out entering the root user password
View 1 Replies View RelatedCan someone assist me with recovering/resetting the password for Root via Single User Mode in CentOS v5? I've modified the kernel line using Single, S, and 1 but it appears that these commands are being totally ignored as the server continues with the boot process and displays the GUI logon screen. The server in question is a VM box running on ESX v3.5 U4. The person that created this VM is no longer employed here and I've exhausted everything I know regarding Single User Mode.
View 12 Replies View RelatedWhen I go to single user mode for resetting root password, It ask root pawssword for login.The message displayed on prompt is "Give root password for login.On the boot prompt, I select kernel and press 'e' and after one space type 1 for single User mode and then press 'b' for booting.It shows message entering in single user mode but ask root password. Even I tried into rescue mode, but I couldn't ser root password.In rescue mode on prompt, It shows rescue login: I typed root, But when typed 'passwd' foe resetting root pawssword,It shows message unknown user and not authetication.
View 1 Replies View Relatedi've installed directory server in a fedora 12 box, i got it running and i can access it using coldfusion to manage users and groups.i hit a snag when creating a user, this because coldfusion cannot generate a password, the directory server needs a certificate and a ssl connection.so i started googling for a way to generate and install a certificate on the server itself and in the directory.s is my administration server and directory(it's novabase directory) not the other one.
View 2 Replies View RelatedI want to create one user without password using useradd command. Is there any way we can do the same? I have googled it but couldn't get the perfect solution
View 1 Replies View RelatedI am trying to create a "GUI File Transfer " Application , for transferring the files within the network. For That I will obtain User name, Password through the GUI, I will have to append username and password in a single line and run it . I am facing difficulties in exploring the "command",
View 4 Replies View RelatedI've created Oracle Enterprise 5 Virtual machine. It was running fine but not sure what went wrong and now when ever I reboot the machine, it goes to single user mode. If I enter "init 5" command it boots to multi-user X11 mode without any problem.I checked inittab file and default line has id 5. So it looks OK. What else can be wrong?
View 15 Replies View RelatedI have a user that can ssh to every computer on our network expect for one. I verified that it has to be the account by having the user ssh from a different computer. the results were the same.
View 2 Replies View RelatedI need user to input a password through command line in Windows cmd prompt. Is there a way to encrypt the input (such as put it into ......) when user is typing ?
View 2 Replies View RelatedI want to add 50 new users, not on the server yet I want to add them all to group Accounting - with 1 option, not user by user I want to setup a default password for them all, and have it say something like 'You must now change password or no access will be permitted' Any other options I also want to do once, not for each user?
View 3 Replies View RelatedI am using mint 8 for a 2 weeks, I am noob to linux but I like Mint than any other linux distro which is great alternative to windows. I have a problem regarding password reseting.
1. My laptop automatically get logged in without asking user name and password.
2. I tried to change password for newly created user and root user using graphical way but it does not work.
2. I can perform administrator task using only OEM user which is default inbuilt user of mint.
How can make my laptop to ask password when mint get booted? How to change password for other users?
I am an absolute Linux Beginner who is being required to do a bit of admin work because the boss just fired the old linux admin. Unfortunately, one of our employees cannot remember her password to her email account and as such I need to reset it on our linux server.What I want to check is that this email account is actually a linux user account and I simply will reset the password for it using the passwd command from the root login. Is that correct?
View 1 Replies View RelatedI'm running debian lenny. Suddenly when I rebooted my system I was unable to login. I type root and the password and it tells me the login is incorrect.If I boot into single user mode, it accepts the password just fine. Looking in the /etc/shadow file, it appears to be fine as well.Running passwd to set a new password sets a new password just fine, i can login to single user mode with the new password, however, I cannot login at a higher runlevel with the password.
If I delete a password in the /etc/shadow file, then try to login as that user, it simply says "Login Incorrect" without even asking for a password.
how can i restrict a single particular user from logging into the server not more than 5 times?
The conditions may be:
1) wrong password
2) can login only 5 times on one day etc.
Upon OS start-up Debian gives a choice, one is just simply start Debian, another line to start Debian, but with brackets (single-user mode). What's this for? And when and why do you need to use this?
View 2 Replies View RelatedHow do I disable and change the user password using SSH on a Linux
View 3 Replies View RelatedWhat good does getting into single user mode do?And what's the basic purpose of it , i.e is it maintaining purpose???
View 2 Replies View RelatedI have this dump script that performs either full or incremental backups depending on the day of the week. From what I have read, when using dump you should drop to single user mode to help prevent the backups from being inconsistent before you issue the dump command. What I want is the script to drop to single user mode, perform the backups using dump, and then go back to runlevel 3 after the backups complete.
I know when you enter init 1 to drop to single user mode, but doing so within a script reboots the computer and drops it to single user mode and the rest of the script doesn't complete.What would be a good method for me to be able to accomplish what I want to do? Do I need to run other scripts that would call mine?I am running Centos 5.4
I've a user account in a remote machine. but it doesn't have a home directory in that machine.Is it possible to create a home directory without having root account details. If yes, how it can be done.
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