Questions tagged [security]

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

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19
votes
3answers
3k views

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 ...
18
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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 ...
15
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3answers
14k 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 ...
14
votes
3answers
16k 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 ...
10
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2answers
1k views

Why is there a delay when I enter my password incorrectly?

Whenever I enter my password incorrectly upon login, there's a delay before I can try again. Why is this? Is there a way to remove the delay?
10
votes
1answer
2k 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 ...
9
votes
2answers
21k 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.
9
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2answers
6k views

Why is running commands with sudo dangerous?

I know that sudo can do some bad things - there are warnings everywhere: But I'm interested as to what is likely to happen when using sudo - why is it so dangerous, and what can I do to reduce that ...
9
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5answers
4k views

New important security and hardware support update

Anyone getting this? Is there a way to get rid of it? New important security and hardware support update WARNING: Security updates for your current Hardware Enablement Stack ended on 2016-08-...
7
votes
2answers
129 views

How does elementary determine the strength of a password?

I'm curious as to how the strength of a password is calculated, because the password I just entered wasn't classed at full strength: When it is full for Google, Medium for Microsoft and Full for ...
7
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1answer
1k views

What about sudo makes it less secure than pkexec?

I just heard that it isn't recommended to use sudo -i on GUI programs - because it's less secure. Is there any truth here - is there an advantage to this: sudo -i pantheon-files /location over ...
6
votes
3answers
528 views

Is there a pantheon-integrated encryption utility?

Is there any utility that can be integrated into Files so that I can just right click a folder -> encrypt/decrypt? If not, would you recommend me any GUI software to encrypt entire folders? I've been ...
6
votes
1answer
270 views

Does elementary receive Debian's security update?

I was looking for a distribution to install a Linux system after a couple of years, and I really liked elementary OS! But I was reading about it and it is based on Ubuntu, which is based on Debian. ...
4
votes
1answer
53 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 ...
3
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1answer
1k views

How can I sign in with my fingerprint on Elementary OS 6 Odin?

I have a fingerprint sensor supported by libfprint. How can I use it to log in to Elementary OS?
3
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2answers
185 views

No password change with encrypted home folder [duplicate]

I have a freya 0.3.2 / Win 10 dual boot system with an encrypted home folder on a separate partition. Recently I changed my user password in the system settings. As a result, I could not log into the ...
2
votes
1answer
18 views

System is unlocked on power up

Whenever I power up my system, I am automatically logged in. I never get prompted to type in my password. However, if I suspend the system (either from the power menu or by closing my laptop) I do get ...
2
votes
1answer
112 views

Two times password required for booting

My version is Freya, and I chose encryption of my harddisk at the installation. The whole HDD is used with one root partition and one swap partition. The first time it asks for password is just ...
2
votes
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 ...
2
votes
3answers
7k views

Recommended antivirus applications for Linux

As a semi-new Linux user concerned about computer security. I have read Internet articles on Linux anti-virus (AV) applications. Most posts are outdated. There is a dearth of anyone reviewing Linux AV ...
2
votes
1answer
101 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 ...
2
votes
1answer
2k 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?
2
votes
0answers
541 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: ...
1
vote
1answer
928 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 ...
1
vote
3answers
143 views

How can i remove and prevent a trojan on freya?

A fake bank page appeared as i was trying to acess my bank account. The support attendant from the bank told me that i might have a trojan on my notebook and net.
1
vote
1answer
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 ...
1
vote
1answer
553 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 ...
1
vote
1answer
34 views

How can I recover a password from a sftp bookmark in pantheon-files?

A while ago I was working with a remote environment and I decided to bookmark it in Pantheon-Files app. I inserted my username and password and I marked the "Keep it forever" box so I don't ...
1
vote
1answer
171 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 ...
1
vote
1answer
326 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...
1
vote
1answer
195 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 ...
1
vote
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 ...
1
vote
3answers
528 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. ...
1
vote
1answer
4k 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?
1
vote
1answer
97 views

Freya security repositories turns to debian jessie

I encounter various problems with my computer. The first is that my native language is French and I don't know how to make this the default language, so the login screen, keyboard and the session are ...
1
vote
1answer
169 views

How to keep password protection to individual files/folders

I am using elementary OS freya. How can I encrypt (or) keep password protection to individual files/folders. The following are my requirements and what I have tried so far: The solution should be ...
1
vote
2answers
6k views

How safe is elementary OS

This question sounds like exact duplicate of https://askubuntu.com/questions/30032/how-safe-is-ubuntu. May or may not, but I would like to know How safe is elementary OS ?
1
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0answers
47 views

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.
1
vote
1answer
66 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 ...
1
vote
0answers
33 views

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
1
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0answers
72 views

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 ...
1
vote
0answers
74 views

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 ...
1
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0answers
529 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.
1
vote
1answer
37 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?
1
vote
2answers
1k views

(Correct) password not working

My (correct) password no longer works at login screen. At the login screen the password field accepts my password but does not allow me to log in. I just get the usual "field-shake" response and a ...
1
vote
1answer
151 views

How do I access my Truecrypt container?

I am migrating from OS X and have some Truecrypt containers that I want to access and eventually convert to Linux friendly containers. What solutions exists for elementary OS and is there one over the ...
0
votes
2answers
76 views

Elementary OS Updates And Security

I am very, very new to Linux. I am taken aback at how upon installing elementaryOS I was immediately hit with a series of "updates" to various functionalities. How do I know these updates ...
0
votes
1answer
40 views

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 ...
0
votes
3answers
5k 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 ...
0
votes
1answer
33 views

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