Новости кибербезопасности за неделю с 19 по 25 мая 2025

Все самое интересное из мира кибербезопасности /** с моими комментариями На этой неделе в новости про: побитие рекорда DDOS в России; итоги соревнований Pwn2Own 2025; то, что Signal не доверяет ИИ Windows, аWSL выходит в Open Source и ещё немного новостей, но только самое интересное и важное!

https://habr.com/ru/articles/912316/

#информационная_безопасность #новости #wsl #signal #ddos #sudo

🔧 Otimize Sua Experiência no Linux com 3 Ajustes de Sudo! 🐧🔑

Descubra como pequenos ajustes no uso do comando sudo podem fazer uma grande diferença na administração do seu sistema Linux. Aumente sua eficiência e segurança com essas dicas práticas!

👉 Saiba mais no blog: https://nova.escolalinux.com.br/blog/3-ajustes-para-se-fazer-com-sudo-no-linux?utm_source=dlvr.it&utm_medium=mastodon

#Linux #Sudo #DicasLinux #Segurança #Administração

Trying to uninstall a package, but it can't be located #apt #softwareinstallation #sudo #location

https://askubuntu.com/q/1549238/612

My #GNU #Linux Journey – Part 2: From Confusion to Control

I finally understood what groups are in Linux, especially the #wheel group that controls #sudo access.

I learned that on #Arch, you start as #root, because sudo isn't set up yet. So your first task is to create a user, install sudo, and configure it.

I had to install tools like #vim, #sudo, and others manually. This forced me to appreciate how Arch keeps things minimal by default.

What used to be confusing on other systems (why can't I install this?) became crystal clear: if something doesn’t work, it’s probably because I haven’t set it up yet – not because the OS is broken.

Every package I installed and configured taught me something new. Arch doesn’t just work – it teaches you why it works.

#FOSS #Archlinux

My #GNU #Linux Journey – Part 1: Discovering the Arch Way

When I first installed #ArchLinux, I quickly realized it wasn’t like other systems. Nothing came preinstalled. No GUI installer. No sudo. No editor. Just a prompt. And that was the best thing that could’ve happened.

Here’s what I actually learned:

That a Linux “installation” is often just a well-organized file extraction. No registry. No black box like in #Windows.

That #pacman is a powerful tool and #sudo doesn’t work until you configure it. I had to add my user to the #wheel group and use #visudo, a special editor to safely modify sudoers.

That my user password, not root’s, is used for sudo – which felt secure and efficient once I understood the logic.

I didn’t just get a system running – I learned what a system is.

Trying to uninstall package. But it can't be located #apt #softwareinstallation #sudo #location

https://askubuntu.com/q/1549238/612

Something fascinating happens when I run sudo without having a gateway to the internet ready.
Instead of executing immediately sudo times out for nine, I repeat 9 full seconds, before it reacts

I use sudo plain without any switches and my command structure is

sudo command

I wouldn't have stumbled upon this, if for reasons which are not important now, I didn't have a permanent internet connection at this moment.

I will say that this bug that I have found has nothing to do with sudo in itself

The reason why I say that is when you look at the man page of sudo you will see that it doesn't do any networking at all, when you don't invoke switches

Besides the sudo that I use comes straight of the BSD source structure

The BSD programmers do not play when it comes down to stability of their software. Only when a program runs Rock Solid stable is it released. When a program is in beta it is clearly marked and it shall not be in a standard BSD distribution which is deemed stable.

This means that I have to hunt for something somewhere within my distribution, where there's a link put which shouldn't be there, between sudo and a live internet connection when you do not invoke any network switches.

Mind you that my lan is running and the machine is connected to the lan, via a switch, which is connected to the router, which is connected to the Gateway. The Gateway is live, the DSLAM is working but the internet connection is down

https://linux.die.net/man/8/sudo

#Bugs #BètaTesting #networking #sudo #timeout #GNU #utilities #OpenSource #BSD #POSIX

sudo is not working anymore after do-upgrade-release #2204 #sudo #doreleaseupgrade

https://askubuntu.com/q/1548035/612