Questions tagged [login]

The process of logging in: from the login prompt, through user authentication, to session startup.

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33 views

Set locale before first login

I am preparing virtual machine drive image with preinstalled Debian and some additional software. This image would be used by people speaking different languages and even using different keyboard ...
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“Warning: untrusted X11 forwarding setup failed” on nested ssh

I have a gateway to ssh into from the bad world wide web. No problem, I get: remote ~$ ssh -X ingo@gateway Debian GNU/Linux 10 (buster) 0:ingo@gateway ~$ Now I manage my other hosts, for example the ...
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Why don't my wtmp/utmp reset the user count?

On a normal working Linux machine the command w report 2 users(because 2 users are connected) w 19:23:19 up 1:53, 2 users, load average: 0,44, 0,63, 0,81 USER TTY FROM LOGIN@ ...
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Run script on multiple servers to list All Users

(new to Linux) We have about 100 servers (CentOS & RH) and we are trying to get details on all users and the last login date. This command will do the needed: lslogins -u -s -o USER,UID,LAST-...
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invisible character

When I go to a virtual terminal (e.g. TTY2) I can freely type my username When I go to password Linux type invisible character (^@) so I can't type right my password I know that because the password ...
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Unable to set a value with “gsettings set”

when i open a terminal in NX, it is not loading .bash_profile. But when i change the terminal settings, I enabled "run command as a login shell" via Terminal --> edit --> preferences-->under profile,...
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Why does GDM lock screen allows entering partially correct password to login?

I am using GNOME 3.34.2 on OpenSUSE Tumbleweed(20191221) with GDM. I locked my screen and was able to get back in just by entering the portion of correct password greater than a certain threshold ...
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1answer
43 views

How to track a login console crash?

I have a Jessie install that wont allow me to logon. It boots up, presents the prompt, accepts the username and password, but just blinks and comes back to the login prompt. It appears that Bash is ...
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changes in /etc/login.defs no taking over

I've made changes to the /etc/login.defs: PASS_MIN_LEN 3 Restarted the server, even created a new user but I'm still getting error that the password is to short ... What am I doing wrong ?
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`Last` command not working or am I not logged in?

Last command does not show me as logged in. What should I do? I want to run the last command to see all users logged in on a specific date, but the output of last is wtmp begins followed by a date.
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Printing the names of the users that logged in on a specific date

Every last command that I write outputs the same thing: wtmmp begins Sat Mar 7 21:30:03 2020. I have tried with different command options, but the output is the same every time. Also, I have used ...
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1answer
52 views

Can't login to Kali after upgrade

I'm running Kali from VMware. I upgraded my Kali, and after rebooting I can't login. When I restart I'm login automatically via tty1 , and receiving the following error: uname : loadlocale.c:129 : ...
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1answer
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Dial-up vintage BBS access with agetty and a modem

I'm trying to setup a 80's service with Mystic BBS (that runs on telnet), including a dial-up access with a U.S. Robotics modem connected to the serial port of the server. I succeeded with mgetty: /...
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Script as user logs in/out

Posting my question here as it got closed on stackoverflow despite being ontopic. im trying to execute a bash script when any user logs in/out, im curious how you would go about this process? i know ...
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1answer
41 views

What is this password prompt after logging in to Debian 9?

Every time I restart the system and log in, a password prompt pops up: In most cases, this happens as soon as I open Chromium (it actually seems to freeze up the browser), and usually clicking on "...
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1answer
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Disable local user PAM, enable root user with LDAP

I am trying to setup a Linux machine with LDAP authentication and root account enabled. There is no issue with the LDAP server and everything works fine. I wanted to disable local users so I tried ...
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Debian: logging out causes services to become unavailable

I run Bullseye with XFCE on a Dell Inpiron 5567. I have two users on this system: mine and a Guest; whenever I log out from whichever was logged in first and log in again, [b]even as my user[/b], ...
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After login, screen goes blank for a little and I also hear the DVD/CDROM drive click

This behavior delays my desktop from opening, I would prefer them disabled (I am not sure if they are related) and have an instant login! How could I figure out what is causing the issue?
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How to enable debug mode during starting Centos 7 or Centos 6.5

Does anyone know how to enable debug mode during starting Centos 7 or Centos 6.5? I mean when any login issue comes for start Centos and we need to doing troubleshoot for the reason. Appreciate much ...
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1answer
24 views

Can't get into Debian console interface after login!

Tried to find the solution online but was not able to find any. How can I enter into graphical user interface? I even used right password but still it's stuck on this terminal mode.
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How can I login into Plasma (Wayland is OK)?

After a crash, I am not able to login into my Plasma DM. Wayland works fine though. When I type the password, it just asks me for the password again in an infinite loop. I tried chown myuser:myuser ...
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1answer
85 views

How can I trigger a bash command everytime someone fail to login?

I'd like to take a picture from the webcam every time someone try to login into the system. I know I can do that with: mplayer -vo png -frames 1 tv:// The question is: How can I trigger this command ...
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Temporary announcement upon ssh login?

I'm trying to make a simple message that says something to the effect of Server will be going down at 11:00pm UTC, March 1st, for updates. to all users who ssh into my Raspberry Pi server (...
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1answer
37 views

Custom message to “This account is currently not available” when user login is disabled

I have a Lxc container inside a Proxmox host. I need to prevent that the Proxmox admin can login inside my container. To do so I disabled root login in /etc/passwd. When the Proxmox admin uses pct ...
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1answer
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Remove all the entries in /etc/securetty except console, tty[0-9]* and vc\[0-9]*

I would like to remove all the entries in /etc/securetty file except console, tty[0-9] and vc/[09]. ~]# cat /etc/securetty console vc/1 vc/2 vc/3 vc/4 vc/5 vc/6 vc/7 vc/8 vc/9 vc/10 vc/11 tty1 tty2 ...
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1answer
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Why is pam_env.conf ignored after I su into root user?

I'm trying to do: su -l and set environment variables like PAGER without success. How can I achieve this? This is what I have in /etc/pam.d/login: auth required pam_securetty.so auth ...
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1answer
87 views

Setting up a passwordless login with a U2F token (Yubikey 5)

I am trying to set up a passwordless login for Linux Mint 19.3, in order to be able to log in either with a Yubikey token or a password. I followed the instructions from Yubikey website and this ...
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Elemntary OS - Login problem

So I bought new laptop yesterday (Asus VivoBook X512DA) and I installed Elementary OS (5.1 Hera) on It. Everything worked fine and installation process went normal, but the shut down process took ...
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Black screen after installing new login screen

I changed my login screen. After rebooting and choosing kubuntu as a dualboot option, kubuntu boots into a black screen in which I can see my mouse pointer. I can't log in. Is there a way to repair ...
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Linux RedHat Login Issue

I tried to install Nvedia drivers in my linux system for deep learning purposes. After i installed it and rebooted the system the login screen didn't show up instead it showed some commands which I am ...
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1answer
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Login prompt's weird behaviour

In TTY, my login prompt has got a strange and annoying behaviour: with my arrow keys, I can move the cursor everywhere on the screen, including the prompt itself, the welcome message, etc. If I press ...
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1answer
40 views

If someone logs into serial and exits console without logout, how do I automatically logout?

am using a debian based linux system. There is a console access to it via Lantronix SLC8000 Advanced Console Manager. When I login it asks for username and password (Both Console manager and server ) ...
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1answer
26 views

In dual boot Linux & Windows OS in a computer, the first browser's site gets logged off

Why as we manage dual boot Linux & Windows OS in a computer, after browsing a site we restart into other OS and visiting, logging in on the site by using the same browser, next after exiting and ...
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1answer
44 views

KDE Neon GUI won't start after login

I installed some updates and it needed a reboot which I did. After that I tried to login, but pressing enter after entering the password or clicking the login button with the cursor didn't do anything ...
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1answer
203 views

XUbuntu LightDM login loop

I am currently using Ubuntu 18.04.3 LTS, and I randomly got a login loop upon restarting my PC. The content of my /var/log/lightdm/lightdm.log is the following: Greeter connected version 1.27.0 api=1 ...
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Can't connect to my OpenSuse machine

I have a OpenSuse based machine used as my application server in client's place. I configured it and installed all necessary software in the end of December 2019 (about 1 month ago) and everything ...
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26 views

Username semi-autologin and default display set (Debian 10 + Cinnamon)

1) I need to set my username to login table constntly. That is, after booting, I can only enter the password and log in, but to remain able to switch to another user if needed. 2) My system run on ...
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57 views

/etc/shadow is empty, yet I am prompted for password

I have a board (Pine64) on which I run my custom-built linux distribution (using buildroot). I configure root to have no password, and the resulting /etc/shadow file looks like this: root:::::::: ...
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User not in AllowUsers can ssh

I have the following at the bottom of a usual /etc/ssh/sshd_config Match Group sftpg ...
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1answer
98 views

/etc/inittab: auto login on ttyS0

in my /etc/inittab, I have this line: T0:2345:respawn:/sbin/getty -L ttyS0 115200 vt100 which gives me getty on serial console where I can log in. How can I specify that instead getty, I get ...
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1answer
111 views

Can not login as root after installing zsh

I installed ZSH and made it the default bash for my kali linux system, then I rebooted the system, and I could not login as root any more. I type in the correct password and it says LOGIN FAILED. I ...
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2answers
61 views

Fedora login loop

After updating fedora and reboot the system keeps looping on the login menu. I can’t get into other users neither and I can’t access the tty with Alt + Ctrl + F2. At this point I’m really lost and I ...
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Cant login/authenticate after installing gnome on SLES 12

I installed SLES 12 and afterward, I installed gnome with the steps below, but after the machine rebooted (and indeed logged in with the GUI) I cannot log in anymore (and by that I mean I see my user ...
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1answer
139 views

What is the difference between pam_faillock and pam_tally2?

To block a user after a preset number of failed login attempts, one would use a module like pam_tally2 or pam_faillock. What is the difference between these two? Which one should I use when?
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Allow multiple keyboard layouts on linux mint login screen

I found many posts that show how to change the default keyboard layout on Linux Mint login screen. However I need to be able to switch the layout before logging in. Specifically, I need to have both ...
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Why some Active Directory domain users can't connect to the server?

I've been experiencing an issue with a RHEL 7 Server in which relatively newly created Active Directory domain users can't connect to the server. When I try to login with users which were created ...
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0answers
76 views

Starting Xorg using systemd

As described in another question, I use my .bash_profile to start Xorg on login. I am using a fresh install of Arch Linux. The Arch Wiki provides instructions for doing this using systemd instead, ...
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Login to a Ubuntu vps via ssh,while ssh is blocked by firewall

Unfortunately my English is not good and I apologize for that. I have a Ubuntu vps. When I was trying to enable the firewall, I forgot to open the ssh port. And after restarting, my access to vps was ...
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1answer
730 views

Live Kali Linux root/toor login not working

Today I tried to get Live Kali Linux working off a USB stick. When I got to the login screen, I tried entering root as the username and toor as the password like always, but the login failed. I am out ...
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80 views

Booting a systemd container - how to bypass console login?

I am using systemd-nspawn to boot a linux container and load its lxsession in a VNC-style nested X server. (Xephyr) I have created a script to do this. One of the main problems with the script is the ...

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