Questions tagged [security]

Security covers a wide-ranging set of topics including Users, Permissions, Authentication, Authorization, Upgrades, Firewalling, Hardening, etc.

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3k views

How do I install current versions of OpenSSH and LibreSSL?

The versions of OpenSSH and OpenSSL that ship with the Ubuntu base version can be several releases out of date. How can I install updated versions?
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142 views

Install OpenSnitch in Juno?

Has anyone managed to install OpenSnitch in Juno ? I tried the install it using the procedure from the README.md, but the "make" command fails with the following error : Command "python setup.py ...
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Is elementary a Good Choice for a Corporate Setting?

Would elementary os be a good choice of Linux distros for a corporate setting? I'm just curious.
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159 views

Can't type in my password when waking laptop from sleep mode

When I put my Vaio E Series laptop into sleep mode and wake it up, I can move my mouse and click things, but can't type my password with my keyboard at the login screen. I can click the submit ...
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Can I install elementary on a Mac with a T2 chip?

I'm thinking of buying a 2020 Mac mini. I can't get out of the Apple ecosystem just yet, but later on, I'd like to switch to something more open like Linux. I've read a lot of things about Apple's ...
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198 views

How do I get mail to trust my mail server?

I'm running Zimbra mail server on a Linux box. Thought I'd give Elementary a whirl to see if it's something my family members could use. When I ran Mail and gave it my account settings, I was prompted ...
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43 views

Elementary OS keeps on booting into a disabled administrator account

In order to better be able to administer my workstation which is used by the entire household I have set up one administrator account and took away administrator privileges for all the others. However ...
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7 views

Resum from suspend briefely shows running application before login prompt, fault found on Thinkpad T430 and T460

When opening the lid on either my ThinkPad T430 or T460 for a short period I can see what I was working on when I closed the lid, then the password / system login prompt appears after. This is a ...
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Introducir la contraseña para desbloquear su depósito para claves de inicio de sesión en Chrome

Al abrir el navegador google chrome siempre me aparece este mensaje. No resulta molesto el hecho de tener que meter la contraseña pero el caso es que no reconoce la contraseña habitual de inicio de ...
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1answer
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Can't login, recurring password prompt possibly due to filesystem full

NOOB alert I have been using elementary os for a couple of months without issue. I noticed a couple of days ago a low file space alert. So I increased my root partition from 12 GB to 26 GB which ...
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Is there a way to lock certain apps?

I share my PC with my brother. So, I was wondering if there was any way to lock certain apps. Making another account or a guest account is out of the question. Is there any app to do so?
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Authentication Error After Lock

So a little issue here. Whenever I unlock the system after it locks (either manual or automatic lock), the system does not seem to fully unlock. As in, I have to authenticate every single system ...
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Finger Print Reader Dell G5 5587 15inch

I have no idea how to enable the finger print reader in order to login.. Side not how could I get fingerprint reader to then enter sudo password when required in the terminal?
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1answer
14k views

How to change or remove keyrings on elementary OS

It always asks me to put a password in, but I think it is annoying: Is there a way to remove this? I tried resetting the system settings, but that didn't work, I also tried to find it, but everything ...
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WiFi password request keeps cycling and won't connect

I'm using the latest version of elementary - HERA 5.1.2 - and it keeps asking for the password when I try to login to the home WiFi. I have previously had it connected so I'm confused as to why it ...
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1answer
27 views

No password prompt on lock acreen

I have a 5.0 install that has upgraded to 5.1. since the initial install, I've never had the password prompt come up for getting back into the machine after locking. I verified that I do have locking ...
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1answer
1k views

How can I remove the password prompt from the lock screen?

I have enabled Auto Login in the settings. But if the laptop goes inactive, the screen get locked and wants to know the password. Is there a solution to deactivate the password query on the lock ...
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1answer
88 views

Forgot passphrase of an encrypted disk

I did the encrypted disk option upon setup and have forgotten my passphrase. I wrote down the backup code it gave me, but don't know where to use it. Also, how do I turn off this encryption? It's ...
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3answers
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Does elementary OS perform any sort of remote data collection?

What happens with my data, if I do not enable Privacy Mode in System Settings? What data does elementary OS collect from my device in general? And is the Amazon Web Search which Ubuntu implemented ...
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How do I get a vulnerability patch for sudo?

Is there a patch available for sudo in elementary OS? I see there's one available for Ubuntu, but I can't find anything about elementary OS. I'm running elementary OS, and it's completely updated, but ...
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2answers
16k views

I forgot my password

I'm very worried because I forgot my password to log into my Elementary System and now I can't log in, please help me as soon as possible. Thank you very much.
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1answer
523 views

On Juno, updates authentication dialog crashes on loop

Since yesterday nights, there are those updates: When I go on and update, there is on loop a crashing authentication dialog that shows up: The two dialogs are flickering super quickly, you cannot ...
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Showing that Password is incorrect even though I'm typing the exact correct password

First i thought that I forgot the password literally, then i went to the system recovery to change the password. After changing the password the same thing is happening i.e. It is showing incorrect ...
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1answer
111 views

Password resetting: I dont have my live installation device available.

Is there any way I can reset my password without having that live installation thing? Its stuck on loading initial ramdisk...
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How to remove the password request from the key deposit

I would like to not have to type the password every time I start google chrome in the system. Thanks in advance
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Save passwords for applications not working

I installed a elementary OS on my notebook last week. Everything works fine until the password saving for applications like Thunderbird or ownCloud desktop client. I never got this problem before. I ...
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109 views

Is it true that Elementry OS is quite vulnerable to Mass Surveillance programs like PRISM?

I've been told that Elementry OS is built from Ubuntu and Debian.Many of the digital rights webistes were not recommending UBUNTU derivative distros for privacy since Canonical’s Ubuntu contains ...
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Storing notes securely

I'm moving from macOS to elementary OS and so far I already have most of the tools I use covered. There are some things still missing though, and one of them is the place where I keep passwords and ...
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3answers
396 views

Unable to boot elementary OS after new important security and hardware support update

I have installed above update and after that system cannot boot. it displayed the "e" logo and after that everything goes black again, does anyone know how to fix this? already tried recovery mode. ...
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3answers
6k views

Multiple password prompts on resume from sleep: “Authentication is required to refresh system sources”

I've recently installed 0.4 Kodi Beta 2 on my XPS 13 as the broadcom WiFi chip installed on it only started receiving support on Ubuntu starting 16.04 on which 0.4 Kodi is based. So far everything has ...
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1answer
196 views

Krack attack security updates?

I just read about the Krack attack, which describes a weakness in the WPA2 protocol that impacts almost all devices that use WiFi. More info: https://www.krackattacks.com/ https://github.com/...
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1k views

How to unlock a folder

I want to install a new theme to Plank but the folder is locked and I have no idea how to unlock it. Super new to Linux.
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2k views

Is it possible to disable password

Is it possible to bypass password forever I grow tired of entering it all the time. I would like to set up the computer so that my parents do not need to enter a password upon wake up and when ...
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0answers
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Suspension of system results in unresponsive lockscreen

As the title says, the system will randomly "lock me out" of my laptop if it goes to sleep by itself. The lockscreen won't allow me to click and input my password again, which forces me to do a full ...
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1answer
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I want to disable the crypto password when I switch on my laptop

How do I disable the crypto set up password when I switch my laptop, it is not the login password but the one when you power on your pc. please help I am using os loki thanks
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1answer
53 views

After change Admin-PW I can't log in anymore

I changed the password in the admin functions, I restart the Laptop and when I want to log in I write the password and enter → the display turns black for one second and the field for password is ...
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3answers
4k views

How to get username or password on elementary Os?

Unfortunately i forgot my username or password for my account, how do i know what is my username?? I can open the terminal at login screen, and then the terminal screen shows this elementary OS Loki ...
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0answers
386 views

(Is it possible to find out) what caused or might have caused my encrypted home folder to get unmounted?

Two days ago while I was working with OpenShot video editor that was constantly crashing, my home folder got unmounted. When I tried to access my data there were only two files in my home folder: ...
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469 views

How to harden elementary OS [closed]

I use Elementary OS. How can I secure it? I am not a advanced linux user, but in the past 8 months I have gotten comfortable with using terminal.
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1answer
1k views

Did I install Firefox right and safely?

I didn't realize firefox could be downloaded inside of OS so I went online and found this code to type in the terminal. sudo apt-get update && sudo apt-get install firefox Is there any ...
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1answer
729 views

How can I add / renew CA cert's which pantheon-files is using?

I wanted to mount my webdav share which is using certificate backed by CA "Let's Encrypt". Unfortunately pantheon-files declare that CA is not trusted (not found). This CA is perfectly workable and ...
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3answers
13k views

Why Can't I Log In to Gmail with Geary or Mail?

When I tried to add my Gmail account, I was notified by Google with a message that follows: Sign-in attempt prevented Hi, Someone just tried to sign in to your Google Account from an app ...
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2answers
138 views

Is there a way to add log-in user names and passwords for sites in Epiphany? [closed]

Sometimes I can't save log-in user names and passwords for sites, even if I click Save when prompted. For example for Flickr. I guess it's an Epiphany bug, but I couldn't find any information about it....
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1answer
50 views

Will the Preferences URL Specification pose a security threat?

Re: your posting Switchboard "use of URLs" (link follows this comment) I am concerned that Switchboard's "open/extendible" approach could be or become Elementary's 'Achilles heal'. How can the URL ...
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1answer
157 views

PGP Signatures of ISO Downloads?

Does elementary OS PGP-sign ISO downloads? If not, is there a good avenue for requesting this? Ubuntu, Fedora, Arch, Gentoo, and more all sign their downloads with GPG and provide cryptographic ...
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2answers
554 views

How to auto login (straight to desktop without any password)

I am currently downloading Loki and will be clean installing it tonight over Freya. This is my old parent's desktop. They get really irritated with logging in with a password. How do I do this? (Last ...
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1answer
1k views

How to change password of /home folder encrypting?

When you just change your password the passkey isn't changing (Maybe, it's a bug?). So, how to change it?
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1answer
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When I click Administration account, it will not let me on the account. How can I unlock the settings from the guest account? [duplicate]

Whenever I click the admin account, it will not let me on it and only comes up with my background picture. This has happened for a while as I once turned off my laptop whilst it was going through an ...
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2answers
121 views

What is the password to update the previous elementary to Loki?

I tried to upgrade straight to Loki but the installer asks for a password that I do not know. What is the password?
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1answer
27 views

How to zero out a disk

What's the easiest way to write over a hard disk (such that you could give it to a friend, etc.) on elementary OS?