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Questions tagged [login]

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

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8 views

Lynx “Alert!: Unsupported URL scheme!” [on hold]

I recently tried to make login in a website through Lynx, but when I press enter it says Alert!: Unsupported URL scheme! So I was wondering if there is some trick that would allow me to login on ...
3
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1answer
44 views

logout/login not enough to update group membership

I just added myself to "docker" group on my workstation. I dutifully logged out and in again on my desktop environment but I'm still not on the group: mcon@cinderella:~$ id uid=1000(mcon) gid=1000(...
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1answer
29 views

Centos Installation base environment only showing basic functions

I am currently interested in learning how Linux works. I have followed the tutorial How to Install CentOS 7 on VMware Workstation 14 Pro? The problem is, every time I install the only available Base ...
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2answers
91 views

What does the Unix login program/command do?

I am reading APUE and it keeps refering to the login program, but I still don't know what it is doing in my operating system (Ubuntu). §8.11: Normally, the real user ID is set by the login(1) ...
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4answers
580 views

How can I track script which gives me “command not found” right after the login?

When I login, I have these messages: -bash: $'\r' : command not found -bash: $'\r' : command not found -bash: $'\r' : command not found It is quite clear that it is caused by Windows-style line ...
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0answers
20 views

Linux background login (load user account without logging in) [closed]

I would like Linux to log in (load the profile) in background after I entered the password and require the password again when wanting to use the computer. Alternatively, I would like Linux to load a ...
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0answers
26 views

Ubuntu 16.04 - Cannot SSH with root user, login successfully but closed immediately with return code 254?

I could SSH to 1 server with a non-root user. However, I tried to enable root login at /etc/ssh/sshd_config with this content: # Package generated configuration file # See the sshd_config(5) manpage ...
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0answers
15 views

When I connect my Wacom to the PC, Debian gets stuck to Login screen

As title says; also: everything was working fine, I followed all the steps I found in the Linux Wacom Project https://linuxwacom.github.io/ and at the end of the process I could use the tablet with no ...
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0answers
17 views

Can some or all profile/login scripts be bypassed on local console login?

The situation I'm thinking of is that something in /etc/profile or ~/.profile or ~/.login or similar is causing you to be logged out immediately or some other problem/mischief, and you're at a text-...
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3answers
48 views

Seeing user two times

Consider I have created a user 'test' during Installation which I use to login to my system. My root user is 'root'. I further open two terminal sessions for each of the users respectively. Now the ...
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0answers
60 views

Very slow login, logout and su on Centos 6.8

It's been two weeks that ssh login, logout and using su to other users on a CentOS 6.8 server been very slow, it takes around 20 seconds to 45 seconds for the login or logout or su to take effect. All ...
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1answer
21 views

Linux Mint with AMDGPU, Monitors drop signal after Mint boot animation

I installed Linux Mint MATE 19.1 and installed the AMD MESA 18.x+ drivers as shown in the Wiki (adding ppa:paulo-miguel-dias/pkppa and upgrading). Here are my specs/setup: Make/Model: Dell PowerEdge ...
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1answer
32 views

How to configure Linux to authenticate users based on Keycloak user database?

I have an existing user database in Keycloak. I want to build a Linux machine which logs in users according to the user database in Keycloak (username, password). How can I accomplish this?
1
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1answer
22 views

A single unified account for all users on a single machine, while preserving separate credentials

So this is more of a reverse-engineering question. We have this machine at work, where anyone can login using ssh. ssh johndoe@gateway01. However! Once logged in, the user the person is logged in as ...
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0answers
38 views

Root password is not working in linux Box [closed]

I have change the root passwrd couple of time in linux but i am unable to login to the account as root.Getting access denied.
1
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3answers
54 views

Can a Solaris 11 account prefixed with # be used to login?

I have been given a list of accounts on a Solaris 11 server that contains several accounts which are prefixed with a # character: "#username". (No LDAP is being used, and all accounts are local ...
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1answer
34 views

Recovering from a 'corrupt' theme installation on Debian

I recently installed a new theme on my Debian Stretch machine, however after rebooting, I am unable to get past the login screen. If I enter the incorrect log in details, the systems tells me that the ...
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1answer
32 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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0answers
18 views

Do display managers like sddm actually set the login_shell option?

I have a script which distinguishes if it is sourced from within a login shell or not. But it happens not to do its job as the login was done through display manager sddm. #!/bin/bash # /etc/bash....
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1answer
87 views

On Kali, by default terminal starts with root privileges, how to stop that? [duplicate]

On other distros when I open terminal, it is usually either ask for password or logs in with normal user priviliges, in Kali it logs on automatically with root. I want to stop that.
1
vote
1answer
113 views

CentOS 7 “Invalid user __ from xx.xx.xx.xx port xxx” - Not showing the attempted username entered

When taking a look into my /var/log/secure logging file, I'm able to see attempts to log into my CentOS system via SSH, however, the username is blank. I've recreated this myself by entering false ...
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0answers
92 views

Cannot login with Linux Mint 19 via terminal

I cannot login via terminal (I do not know if this is because of Mint or Ubuntu). When I enter the username, I want to enter the password, but what it does, it autoenters with an enter it goes like ...
0
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1answer
99 views

Login loop Linux Mint 19.1

I am unable to login to my linux desktop since I rebooted earlier today. Did not notice anything strange except firefox crashing a couple of times. It seems like the system is in a login loop. After ...
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0answers
134 views

TTY Login hangs after username input with constant newline

Problem: After a restart my Ubuntu Server 18.04 installation greets me as usual with the tty1 login prompt. The input of the username works as usual but after hitting enter the password prompt is ...
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0answers
46 views

login not working from new tty but with su <username> works

I'm installing LDAP auth on CentOs7 (command-line way). I'm facing a strange behaviour: [root@client]# su ldapuser01 (run as root) works and let me connect as ldap user (without prompting for a ...
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1answer
116 views

SSH connection “This account is currently not available”

I tried to connect at a SSH server in 3 different ways, but nothing works: using putty - after I enter my password the putty window automatically closed, and in the log file there is: "This account ...
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0answers
18 views

Can't boot into a specific account on GalliumOS, can with root account, from greeter

I was trying to log into my main administrator account, and it seems to accept my username & password and begin to login normally, as the standard (for me) blank purple screen pops up, but then it ...
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0answers
14 views

xscreensaver - how to log successful logins

I would like to log successful login attempts from screensaver. Running xscreensaver with xscreensaver -verbose -log ... does give me something usable: input finished. pam_conversation (...) ==&...
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2answers
55 views

do incorrect usernames get logged?

i was wondering if a GUI login attempt with a non existing username will be written to any log files? (im using mint with cinnamon and Kali with gnome3) I accidentally put my password in as username ...
1
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0answers
40 views

!! versus * in /etc/passwd [duplicate]

My (admittedly dated) understanding of unix is that in /etc/passwd if the second field is 'x' then the identity can login with a passwd that matches a hash found in /etc/shadow. However, when I list /...
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votes
1answer
113 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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0answers
43 views

I have issues when I login the shell of Debian 9

When I write my user and password it goes all fine until I push the enter button. The screen goes grey, blinks a few times, again grey, then freezes like that. So I push the reset buton and when its ...
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0answers
54 views

Cannot login in to arch linux

I installed arch a day ago and it was fine until yesterday but after I changed some settings in the /etc/pam.d/system-local-login to use fingerprint login and reboot, I can't login in to arch linux. ...
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0answers
17 views

How to login and Download the file in the same session in R language?

I am trying to do login and download the file with using a package httr and jsonlite in R language. I write the following code : library(data.table) library(jsonlite) library(httr) library(properties)...
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1answer
63 views

Can't login as user

Everything works as root. I can startx, and get into iceWM. I'll be using i3, but that works aswell through lightdm if I login as "other" then write "root". Loging in in a TTY works aswell, but only ...
1
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1answer
32 views

Login script that requires user to re-enter displayed random number string

I currently have a script that runs upon a user logging into a Linux server and at the end it prints [Terms of use agreement prints here] read -p "Agree and continue..." -nl -s However, most users ...
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3answers
74 views

PAM doesn't block my account after 5 failed logins

I would like to block account after 5 failed password on login screen. I follow this article but it doesn't takes effect. I don't know why. This is the content of my /etc/pam.d/system-auth file : #%...
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2answers
37 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 ...
1
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1answer
43 views

Why calling agetty directly from bash doesn't seem to have any effect?

I try to call /usr/bin/agetty - from bash in a terminal-emulator(both X-based and Kernel-based), then it asked me to input a username, but after input that username, it just "freeze" a little while, ...
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0answers
40 views

What is the “login session” of a process? [duplicate]

In the manpage of ps lsession SESSION displays login session identifier of a process. What does the "login session" of a process mean? ps has other fields cgname and cgroup for the cgroup ...
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0answers
494 views

Linux Centos does not boot on login GUI

I would like to boot my Linux Centos 7 on Graphic User Interface login page but it doesn't. I have already installed GNOME DESKTOP. I did: systemctl set-default graphical.target my grub file is ...
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votes
1answer
142 views

What does `lightdm --session-child 12 19` mean?

What does lightdm --session-child 12 19 mean in the following output? Why does lightdm fork a process to execute the above command? I don't find --session-child in lightdm manpage. Thanks. $ pstree ...
1
vote
1answer
88 views

What is logging in?

From https://unix.stackexchange.com/a/489913/674 Logging in is a user-space construct; the kernel doesn’t care about that. There are multiple examples of this; for example, cron jobs can run ...
3
votes
2answers
96 views

How does `sshd` perform logging in activity?

From https://unix.stackexchange.com/a/489913/674 connecting using SSH counts as logging in. From How can I run a process as its owner or become its owner without logging in? connecting with SSH,...
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0answers
30 views

Cannot log in to ubuntu after modifying .profile file

I modified .profile file, by adding some PATH to a program to it. I now cannot login to my ubuntu os. I tried to access via ctrl + alt+ fn but the console does not recognize any command I type. It ...
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0answers
103 views

Arch linux greeter without DM

I'm using Arch Linux with i3wm with xinit which results in having tty1 as my "greeter". I wanna know if there is any possibility to have a greeter, for instance, Deepin greeter at login prompt ...
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1answer
72 views

Is there a totally empty Bash file I can use (or create) to extend .bashrc and .profile?

I know that by principle, one shouldn't change .bashrc and common changes like creating an alias should better be done in .profile instead. When I rent a new IaaS system with Bash as main shell, the ...
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0answers
77 views

login system on a buildroot linux router [closed]

I have a Gemtek WVRTM 127ACN router / modem, If you do not touch any key during startup, linux starts automatically. It's a linux version created with buildroot, the problem is that there is not a ...
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0answers
68 views

Post-upgrade login loop in Zorin desktop after upgrade to 18.04 [closed]

My friend upgraded his Zorin Desktop with Ubuntu 18.04. Now, at login, he has four desktops to chose from on the login screen: Zorin desktop Gnome Gnome on xorg Gnome classic Choices two, ...
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1answer
99 views

ssh & local root login works with invalid password in Debian 9

I am trying to login to Debian 9 machine with root username, locally and through ssh.  It logs in with any invalid password.  I want to access the machine with the correct password only.  Why does an ...