Questions tagged [privacy]

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Is Unix "permission model" conceptually broken?

Suppose a teacher has prepared for his students, before course's beginning, a series of surprise tests that cover it whole. tests ├── subject1 │   └── exam.txt ├── subject2 │   └── exam.txt ├── ...
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1answer
78 views

remove the remote content warning in thunderbird

Thunderbird pats itself on the back for not loading external content and protecting your privacy, but at the same time has a bright yellow notification bar tempting you constantly to do exactly that: ...
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Linux Desktop: How to restrict app's networking, file access and maybe other permissions

This is my first question. Any comments to improve it are highly appreciated. What I am trying to achieve Have a reasonably secure and private (Linux) desktop with at least moderate usability. Where ...
9
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1answer
2k views

gdm greeter configuration: Exclude all *except* for one specific user

I have Googled this one and tried so many combinations, with no success. I need the GDM login greeter to display one and only one username. In effect, what I need is something like this in /etc/gdm/...
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2answers
13k views

Monitor outgoing web requests as they’re happening

I want to see a list of all outgoing HTTP requests from my desktop. I think it should be possible to monitor HTTPS hostnames as well for local clients using Server Name Indication (SNI). OS X has a ...
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1answer
289 views

Allow to run Telegram (or any other application) via firejail, prevent it from running directly

Preferably without using sudo. So far I've just saved it under /opt/telegram/Telegram without adding it to $PATH but that's not a solution since I can easily run it accidentally.
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1answer
209 views

Is it possible to have a separate Firefox profile for root?

There's a shared office PC that employees can use to surf / look up information on, etc. There are times when it would be convenient for me to use the same PC to check my email / log into secure sites....
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1answer
30 views

Syncing Calendar with phone

I'm well aware, that similar questions exist, but due to my lack of expertise the respective answers couldn't help me make it work. So I've just recently transitioned from Windows to LinuxMint (my ...
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1answer
64 views

How to completely disable Fedora surveying my browser e-mail activity

I have Fedora release 33, and after the last update, I was absolutely freaked when I checked my email from Firefox 85 (running in a private mode), and the Fedora application that informs about updates,...
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75 views

How can I create a fake microphone in Ubuntu 20.04? [duplicate]

Blackboard and Zoom on Firefox both require microphone permissions even if the microphone is never to be used. You can mute your microphone in those services and on your physical computer but I am ...
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1answer
58 views

How to conceal my timezone in the Date entry of the headers of email messages in Mutt (NeoMutt)?

Because of privacy concerns I'd like to not expose my timezone when sending a message. When I look at locally-stored message they look something like the following: Return-Path: <my email address&...
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Lenovo X1 Carbon has awful vision angles

I have a 3rd gen X1 carbon Lenovo. It has awful vision angles. I must not move my head too much otherwise I can't see anything, particularly on dark backgrounds (ie: watching a movie). I just ordered ...
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3answers
226 views

Privacy when Running Windows Software Under GNOME

I've been running Pop!_OS 18.04 on a System76 Meerkat. I've been advised that I can run Quickbooks for Windows if I first install gnome-boxes. If I do so, will I have as much privacy as before? Or ...
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1k views

Ubuntu 20.04 disable temporary IPv6 addresses

I have a very basic Ubuntu 20.04 server installation. I am trying to disable the system from using temporary IPv6 addresses. My netplan is as follows: network: ethernets: ens160: ...
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80 views

Are there generally any privacy issues with giving out a journalctl output?

As the title states, I'm just wondering if pasting the logs from systemd might have any personally sensitive information, as I know commands like inxi can with internet information. I was under no ...
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1answer
474 views

How to prevent automatic insertion of your Git user name and email address in gitconfig file?

I'm a newbie to the Linux world as well as to git. I recently set up version control to manage my dotfiles by creating a Git repository called 'dotfiles'. However, whenever I commit any changes, I am ...
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1answer
124 views

Does Raspberry Pi OS support encryption on the RPI 1 WITHOUT extra hardware?

I have a RPI 1. The original. It is crucial for me, for basic bottom-line security, that all my machines are encrypted and cannot be booted/read once powered off without somebody entering the right ...
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56 views

Wiping files found by PhotoRec

After running PhotoRec, the report.xml file gives a summary of every file that could potentially be restored from my hard disk, for example: <fileobject> <filename>/place/recup_dir....
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1answer
129 views

Privacy: are elementaryOS and ParrotOS equals to Debian?

I am an Ubuntu user. I plan to stop using Ubuntu according to Richard Stallman's and privacytools.io recommendations. I am not very enthusiastic about using Debian because of UX/design which I don't ...
5
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1answer
307 views

The Devuan machine-id patch - solving a problem or blowing smoke?

As reported on SlashDot, Devuan has recently introduced a patch with the following description: A few days ago Devuan ASCII 2.1 was announced and one update has been overlooked by most media ...
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1answer
160 views

When did GNOME/gnome-calendar ask for my Google account credentials?

At some point I added my Google account credentials to gnome-calendar but I can't recall when. I don't believe that I manually opened the application and explicitly added this account, as I don't ever ...
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1answer
425 views

Is Firefox now biting Google? Specifically, domains like adservice.google.com?

E.g. using the uMatrix extension to Firefox, one can see that third-party websites often pull in content from multiple Google-owned domains. These domains include adservice.google.com (and adservice....
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1answer
720 views

What is the nature of the network traffic I see on bootup?

Linux Mint 19 (cinnamon) On boot up I see connections to the following: golem.canonical.com and pugot.canonical.com all-systems.mcast.net and igmp.mcast.net 224.0.0.251 (multicast, is this local?) ...
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1answer
891 views

Should I go for Debian Stable or Testing? [closed]

I've been using Debian Stable for 1 year. I like Debian for their Privacy Policy, no telemetry and security. Now I need to reinstall my distro and I want to go for security distro. I don't know ...
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92 views

Can I tell my terminal emulator to push URLs to private mode?

I'm using neomutt as my mail client, in Gnome Terminal 3.28.2 on Ubuntu 18.04. I'd like to open inline URLs in a Firefox Private Window by default -- right now they open a new tab in an existing, non-...
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1answer
7k views

Why is the default umask 002 or 022 in many Unix systems? Seems insecure by default [closed]

I have been using Linux & Unix for a long time. The first time I learned Unix is in a computer classroom with many students, where the instructor told us that you can use ssh to log in to remote ...
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1answer
201 views

UMASK privacy- how can I make user files private to the users

I have a debian virtual machine set up and thought of something in regards to UMASK. First I would like to ask if the function of UMASK is to set CHMOD values on any file created by a user. Secondly, ...
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1answer
149 views

Disable metadata in Claws Mail

How to disable the following metadata in the E-Mail Header in Claws Mail? In the accountrc file i didn't find the right line. AF: NF:0 PS:10 SRH:1 SFN: DSR: MID: CFG: PT:0 S:myaddress@example.com RQ: ...
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2answers
60 views

Privacy as regular user against root?

I need to run a script as a regular user on a remote machine whose root I do not trust. This script outputs very sensitive data to stdout. What steps can I take to ensure only I can read the script’...
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1answer
14k views

Random MAC address each time at startup [closed]

I would like to get a random MAC address every time I turn on my Linux machine (Debian). Is this possible? If so, how?
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6answers
4k views

How to see which file a user is editing in vi

If I do a w, I can see that a user is editing a certain file in vi. However there are several files with the same name in different directories. How do I see which of these files is the one that the ...
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1answer
289 views

Clear terminal history after less is closed

Basically, I need the following: run a command with confidential input pipe output to less clear history with less output on screen (or at the moment it is closed) The idea is to make sure that ...
0
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1answer
46 views

What do su - usrnm get? [closed]

I will running some closed source programs in the current logging Konsole window by su - usrnm command, I know that'll share the desktop screen with the programs running under usrnm, not safe enough, ...
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1answer
1k views

How to redact all IP addresses from a log file in Debian?

I have a pure-ftpd log file I would like to anonymize periodically. How would I go about doing this? I would like to strip IPv4 and IPv6 addresses. I'm afraid I do not know sed / awk. The log file ...
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1answer
662 views

Making a Deleted folder Impossible to Recover [duplicate]

Suppose you visit a bad location on earth with your laptop. Thieves are about to break in and steal your laptop. So you run : rm -rf /folder but what if thieves have very advanced tools to recover ...
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2answers
3k views

Outgoing firewall application similar to Little Snitch for Mac

Is there a Linux application similar to Little Snitch? Little Snitch is an outgoing firewall that temporarily blocks outgoing network requests until the user decides whether to allow the connection or ...
5
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2answers
2k views

How can I protect my user passwords and passphrase from root

How can I safely access "my" web services and accounts in a computer in which I do have sudo rights but the administrator(s) have, naturally, remote root access as well? Details I use a dekstop ...
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1answer
6k views

How to strip GPS location data from an MP4 video file?

I have a video file captured with a smartphone. I want to remove the GPS location data written into it, leaving all other information intact. I tried some sed commands, but nothing seems to work.
3
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1answer
3k views

Restrict applications to access certain hardware (webcam, microphone...)

If I tell applications like VLC or Audacity to record from my webcam or microphone, they just wake the hardware if sleeping and do their work without my interference. Although this is a good thing, I'...
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0answers
128 views

GUI app for sending emails through specific smtp servers

Anyone know of an application like swaks but with a GUI? Preferably the application would have auto resolve of MX for the recipient domain. The purpose would be to be able to manually send email ...
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3answers
1k views

Preventing other users from viewing my files [closed]

Ref: Can root/superuser read my read-protected files? My Ubuntu user account name "user-3121" with type as "Administrator". There is one more account named "admin" with type as "Administrator". How ...
2
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2answers
779 views

Mint vs Ubuntu vs rolling release security [closed]

Maybe a broad question, but I would like to know if is there any difference between those distros regarding security and privacy. For instance, I was not able to find an official privacy policy for ...
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1answer
832 views

BindAddress in ssh config on laptop

I have a section in my ~/.ssh/config for connecting to a server via IPv6. But as I have enabled privacy extensions for IPv6 and to avoid my ssh connections being cut I've added BinAddress to that ...
2
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2answers
48 views

Use different ipv6 depending on destination

I have a very particular wish. I am my own network admin at home, so I can trust it and tweak it. I have a /48 with simply two /64 linked together by a router. So I would like to use stable ipv6 ...
5
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3answers
9k views

SSH using keys in external storage - permissions?

I have a set of SSH keys to login to accounts and servers. However, ever since I moved my main work profile to a USB drive (for sync and ease of use among other reasons) I have been unable to directly ...
2
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0answers
27 views

What meta data shares my Linux via Wifi?

Is there a way to find out what kind of data my Linux shares with a wifi host? Like, he'll probably know my (wifi interface) MAC address, IP address, hostname. But what about other information like ...
4
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1answer
364 views

Is it possible for a sysadmin to eavesdrop a user's screen/graphics?

I am interested in several things: - is it possible? - how to do it? - is there a way for a sysadmin to configure the machine so that it will beep or send an e-mail to the user so that he is aware ...
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2answers
105 views

Evercookie and formatting

Will formatting the system or deleting a virtual machine delete all evercookies that a site could have installed on the PC?
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3answers
5k views

How do I open an incognito bash session?

Is it possible to open an incognito session in bash? For example, when we need to enter passwords in commands and don't want bash to add them to history.
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2answers
234 views

Keep track of all files accessed by a specific process?

There has recently been a (publicly unconfirmed) report that Skype is accessing files that it shouldn't be, without user intervention. I have no idea if this is the case with Skype on linux, but it ...