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Questions tagged [password]

Questions regarding password-based authentication and password management

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11 views

Forced Password Expiry question

If I force a password expiry for an account that have aging setting set previously, Am I forcing it also to count inactive days earlier than what was set previously or aging settings (like warning and ...
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0answers
7 views

Synchronise passwords across devices with pass

I am looking for a simple, open-source password manager for linux with a CLI. It has to have a way of retrieving a password via the command line, so I can use it in several scripts (that sync my email ...
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7 views

How to setup password history using authconfig?

I've been setting up a password policy and have used authconfig like so: authconfig --passminlen=15 --update However I can't see a way to set password history without manually changing the conf ...
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0answers
20 views

How can I change language in disk sda5_crypt password [on hold]

How can I change language in disk sda5_crypt password I type shift-alt to change but nothing happens
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3answers
85 views

How to make a password in script [on hold]

I am working on a terminal-based program and thinking there should be a password (That I would specify if I upload or make the user create one, I have tried #!/bin/bash PS3='Are you sure you want ...
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2answers
48 views

What is the root password for raspbian jessie or debian 9

What is the default root password for raspbian jessie or debian 9? I have Raspbian Jessie stretch iso "Raspberry Pi Desktop" or pixel Virtualbox and I need to install keys with root "su", what is the ...
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1answer
46 views

How to avoid password prompt when starting Synaptic?

Whenever I start the Synaptic package manager, it asks for a password. How do I make it skip that dialog? I'm using Debian 9.8.
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1answer
28 views

Trisquel:What to type when I set a blank password? [duplicate]

I recently installed trisquel on my computer. When I decided to use the terminal and sudo I was prompted to use a password despite the fact that I set a blank one. I want to know what I am supposed ...
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13 views

How to sync gopass password store to an android device?

I have setup gopass to be my password manager on my arch linux desktop. I would like to sync the password store to my Android mobile device. Is the only way to create a remote git repo on GitLab/...
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1answer
29 views

Switch to root user always failed after modifying /etc/pam.d/common-password

I'm using ubuntu 18.04. To strengthen my pass-word policy I modify my /etc/pam.d/common-password like this: # here are the per-package modules (the "Primary" block) #password requisite ...
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0answers
55 views

Terminal - Password suddenly “visible” in asterisks [duplicate]

I did not change anything, and suddenly, when typing my password into the terminal during "sudo" commands, my password length is shown in asterisks as i type. Is this a feature of a new mint cinnamon ...
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0answers
17 views

Unable to login passwordless after the changing the users password

for example, A user was locked on server C, i've reset it password. and after that it was unable to ssh passwordless from server B to C, which was working before. i've checked the authorixed_keys and ...
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1answer
64 views

Administrative password not accepted

I just finished installing Debian 9.8 Cinnamon and set up a root pwd and my user pwd. Now I want to install veracrypt and it asks me for my administrative password, but the root password doesn't work. ...
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0answers
44 views

Passwordless SCP from automated script - NO ADMIN RIGHTS server side

I have a cloudways server with no admin rights. I have set up ssh keys using their website interface, to use ssh and scp without passwords from a raspberry pi 3b+ running stretch, however i am having ...
1
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1answer
41 views

pam_cracklib setting min password length

I am experimenting with PAM and, in particular, pam_cracklib at the moment. I've run into a bit of a problem setting min password length and credit for particular character types. My config file for ...
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1answer
33 views

Scientific Linux 7x - Too much system hardening!

Some Linux users like my company build Linux servers to use on factory production lines. We write software to load BIOS and FLASH memory and test our products. We constantly need to reboot these ...
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1answer
73 views

Protecting an email-proxy (Gmail) account being used by a Mail Transfer Agent (MTA)

On Debian LAMP with different PHP based CMSs I use the MTA sSMTP to send email via an email proxy (Gmail); the emails I send are only contact-form inputs transferred from any such CMS to my own email ...
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0answers
53 views

DPAPI / MacOS-style Keyring for Linux or BSD?

Windows and Mac both have a handy way to secure data using the users' login credentials. The Data Protection API on Windows uses a symmetric key which is never stored in plain-text, and is encrypted ...
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0answers
89 views

Piping password multiple times to a command via the command line

I am running Ubuntu 18.04 with bash and I would like to pass a password to a command that runs with sudo, but once its run, i.e the password is piped into the command (a python3 command to run an app),...
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1answer
202 views

how to generate bcrypt 2a variation hash instead of 2y?

On my linux machine, I'm able to generate bcrypt hash from command line using htpassword htpasswd -bnBC 10 "" password | tr -d ':\n' however it generates "$2y$" but I need "$2a$" (bcrypt 2a). How ...
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votes
1answer
236 views

Kali-linux default password for live session [duplicate]

I tried to install kali through Unetbootin but it failed. After that, I tried to go on live one, but without setting any password. It asked for that as default. I entered root as username but don't ...
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3answers
32 views

How to set the passphrase that different keys are discriminable

Can I change my phassword/-phrase('s settings) in a way that it's important which key of multpile ones (e. g. the left shift key instead of the right one) is chosen? Could I go a step further and ask ...
2
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1answer
99 views

Encrypting a password using gpg without constantly asking for password

I have a service that checks my email regularly, and I use gpg to encrypt my email password. The problem is that every time I lock my computer or after a certain amount of time gpg shows a graphical ...
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4answers
84 views

Automate multiple password enties to decrypted LUKS + Ext4 USB stick

I have a USB stick encrypted with LUKS + Ext4. I have forgotten the password... However, I know which words will be included in the password and have a list of all permutations of those words. ...
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0answers
17 views

Switch user providing own password

While switching to a privileged user, we enter the privileged user's password. Can I use my own password instead? Current flow: user1 -- > serviceAcctUser (serviceAcctUser password) Required: user1 -...
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1answer
343 views

change root password in CentOS 7 [duplicate]

I was reading about changing root password in CentOS 7. it's totally different from centOS 6. change root password I was wondering about the steps for example why should I change ro? what ...
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2answers
239 views

“ecryptfs-mount-private” returns “fopen: No such file or directory”

Recently, we've rebooted server and got ecryptfs mount fail: ... Signature not found in user keyring Perhaps try the interactive 'ecryptfs-mount-private' user@host:~$ Could that be because ...
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2answers
39 views

Use Key Based Login on Desktop Linux

I'm using Pop!_OS (essentially ubuntu + tweaks with a gnome environment) and I've recently acquired a Mooltipass hardware password manager. This tool has the capability to manage SSH keys. I was ...
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0answers
41 views

pam_unix Module Not Allowing Random String Passwords in Ubuntu 18.10

I just installed Ubuntuy 18.10 on one of my computers, and am trying to understand why a series of passwords are not working, even though they are completely random character strings. I started by ...
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1answer
135 views

Can attaching to tmux sessions be password protected, similar to gnu screen?

I've been using gnu screen for many years, and I've been looking into switching to tmux. I can't figure out how to make tmux require a password when attaching to a session. In gnu screen, I use ...
3
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0answers
72 views

How to prevent 'chpasswd' linux command by time or days with pam?

I have Ubuntu 18 OS and I am trying to prevent all users from running 'chpasswd' command after 17:00 o'clock. I need to use pam for this. My /etc/pam.d/chpasswd file: # The PAM configuration file ...
1
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1answer
79 views

File/files that is/are responsible for password aging in solaris

What file/files is/are responsible for password aging in solaris server? Whenever a user is added, the default password aging limit is 90 days right? So is there a config file responsible for this?
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1answer
27 views

Secondary password file creation and reset

Is there any way to reset all passwords previously created when the secondary password file is enabled for the first time to ensure higher-level protection ?.
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2answers
58 views

Is it possible for a process currently installed on a system to escalate its privileges by knowing root's password?

Let's suppose a scenario of a Unix-like system (like macOs, linux, solaris etc.) having installed a program from the internet that's been developed by a malicious actor. The program does not use any ...
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1answer
64 views

How to set password constraints in Gnu/Linux [closed]

It contains at least one lowercase letter. It contains at least one digit, which can be in any position except the first and last position. It contains at least one special character (non-...
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1answer
49 views

Can I put a single quote in a user's password

I was wondering if there would be any issue with placing a single quote in a ubuntu user's password. We have a couple machines with a dummy user for automation purposes and I would like the password ...
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0answers
195 views

PTY allocation request failed on channel 0

My remote vm server's password has expired, i cann't change password. [user@localhost ~]$ ssh root@x.x.x.x root@x.x.x.x's password: PTY allocation request failed on channel 0 WARNING: Your password ...
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2answers
880 views

Required Bash Code for Hide Password during Typing [duplicate]

How can I write Bash Code for Hiding Password Or convert into '*' user input will be in string so no spaces, and change or hide password String.
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1answer
45 views

How to go back to entering the ssh key password in the terminal

When I upgraded Ubuntu 16.04 to 18.04, one of the changes was that the password prompt to unlock my ssh key (from the agent) now is in a little GUI popup instead of at the terminal prompt. This is ...
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1answer
439 views

Trying to generate random password characters into a file

I want to generate 100 files with 100 random passwords in /mnt/mymnt/passwords using a script creating some directories. Even if i try to use cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 30 | head ...
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1answer
55 views

Could not log into new VM with correct password

Ubuntu 18.04.1 LTS ubuntu-server tty1 ubuntu-server login: woody Password: - that password section keeps not showing anything even though I've tried with the correct password. Since I used OS X, I go ...
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1answer
144 views

SSH asks for password but I can get in thru serial port without it

I have an arm7 board running GNU/Linux, it's connected to the internet via Ethernet port. I am trying to SSH in to it as root@IPaddr but it is prompting me for a password. I am pretty sure the ...
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1answer
76 views

MAXWEEKS on Solaris is equals to 13

I have a server where MAXWEEKS is set to 13 in etc/default/passwd. I know that this setting means that password will expire after 13 weeks. My question is if the user does NOT change the password, ...
2
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1answer
176 views

How to force gnome-keyring-daemon to ask for my passphrase

This is a follow-up to this question: GNOME keyring daemon sometimes not asking for passphrase, need to provide it via command line Is there a command to force the gnome-keyring-daemon to ask for my ...
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2answers
39 views

Is it safe to remove all user passwords except root?

Is it safe to remove all passwords (passwd -d) from users, including service users like apache, bind, and others, and keep only the root password? I suspect that a malicious user may have set a ...
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0answers
57 views

how does ~/git-credentials file look like?

Let's say I have a git repository for e.g. - https://salsa.debian.org/shirishag75-guest/gradle-build-script- Now in my system I have - :~/games/gradle-build-script-/.git$ cat config [core] ...
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2answers
331 views

Removing login username password screen to Autologin

I am using UP Board. IT has Ubilinux installed in it. I have made a browser kiosk so that it automatically logs in to the browser full screen mode but I am having an issue on reboot. Whenever I try to ...
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1answer
48 views

LUKS header modified? [closed]

When a LUKS password is sent to the LUKS header for decryption, can it be stolen by a hacker who modified the LUKS header? Suppose my boot partition is healthy.
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1answer
54 views

Blank root password disabled in modern distros?

Having read this: https://stackoverflow.com/questions/11700690/how-do-i-completely-remove-root-password I was under the impression that a blank root password, as in modifying the /etc/shadow file for ...
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1answer
43 views

Can't log in after fresh install of Linux Mint

I installed Windows 10 Pro on my old ThinkPad R60 and shrank the NTFS partition to 50% to make space for a dual boot Linux installation. Then I installed Linux Mint Debian Edition 3, creating separate ...