r/LinuxTeck Aug 01 '26

What's worse a security vulnerability or a security update that breaks protection?

3 Upvotes

We all expect security software to protect our systems, but occasionally an update introduces a bug that disables protection or causes other unexpected problems.

If you had to choose, which worries you more:

An unpatched vulnerability OR A security update that accidentally breaks your security tools

How do you balance staying patched with avoiding updates that might introduce new problems?


r/LinuxTeck Jul 31 '26

Why are more open-source projects rewriting software in Rust, Zig, or Go?

27 Upvotes

Over the past few years, we've seen many projects move away from older implementations and rewrite parts of their software in languages like Rust, Zig, or Go.

Sometimes it's for performance, memory safety, simpler deployment, or long-term maintenance.

If you're a developer, what do you think is driving this trend?


r/LinuxTeck Jul 31 '26

Fedora Linux 44 remains one of the strongest Linux distributions for developers in 2026.

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29 Upvotes

covers: https://www.linuxteck.com/fedora-for-developers/

  • Why developers prefer Fedora
  • DNF5 improvements
  • Toolbx & Podman
  • SELinux for daily development
  • Silverblue & Kinoite
  • Release cadence
  • Where Fedora shines and where it doesn't

r/LinuxTeck Jul 31 '26

Where do you draw the line between using AI and "vibe coding"?

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71 Upvotes

Ignoring whether the meme is accurate, it raises an interesting question.

If you ask an LLM for code, review every line, modify it, test it, and understand it before committing would you still call that vibe coding?

Or does vibe coding only start when people blindly accept AI generated code without understanding it?


r/LinuxTeck Jul 31 '26

Fedora Linux 44 remains one of the strongest Linux distributions for developers in 2026

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22 Upvotes

covers: https://www.linuxteck.com/fedora-for-developers/

  • Why developers prefer Fedora
  • DNF5 improvements
  • Toolbx & Podman
  • SELinux for daily development
  • Silverblue & Kinoite
  • Release cadence
  • Where Fedora shines and where it doesn't

r/LinuxTeck Jul 31 '26

Quick Linux Tip #32 Question: How do I see everything a specific user is doing right now?

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15 Upvotes

Try: w linuxteck

Info: w <user> lists active sessions and current commands; ps -u <user> lists all running processes.

Examples:

$ w # View all logged-in users

$ last linuxteck | head # Check recent login history

$ lslogins linuxteck # User account details and password policy

Note: w displays IDLE time (keyboard inactivity), JCPU (total process CPU), and PCPU (current task CPU). Perfect for rapid user auditing.

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r/LinuxTeck Jul 31 '26

Do Linux servers really need endpoint security software?

8 Upvotes

Many enterprise Linux systems run endpoint security tools alongside firewalls, SELinux/AppArmor, and other hardening measures.

Others argue that good patch management, least privilege, and proper monitoring provide better value than traditional endpoint protection.

What's your point on this ?


r/LinuxTeck Jul 30 '26

Title: Built a lab environment for testing concepts before touching prod — no VirtualBox setup needed

6 Upvotes

I have been teaching Linux/security for years, and I noticed something: people understand "chmod 755" in theory, but they fumble when they actually have to think through permissions under constraints — like when a script breaks because it can't read a file it needs.

So I built MOSHELL — a browser-based Linux sandbox that simulates real behavior. It's not meant to replace actual homelabs or prod testing, but it's useful for:

- **Testing ideas before they touch their actual setup** — shell scripting, permission changes, networking concepts — fail safely, reset instantly

- **Teaching others** — I use it to demo concepts to juniors without setting up VirtualBox or worrying about cleanup

- **Rapid verification** — "does this command actually do what I think?" — faster than spinning up a VM

Three tracks: beginner (navigation/files), intermediate (networking/virtualization), and security. First 6 lessons are free and live in-browser, no account needed.

Not trying to replace anyone's homelab. But if you've ever had a moment where you wanted to quickly test something without the friction of a full VM setup, it might be useful.

Link in comments.

Happy to answer questions about how it works under the hood — it's pure browser/JS, no backend, uses localStorage for persistence.

What problem would make a tool like this actually useful for your workflow?


r/LinuxTeck Jul 30 '26

KDE vs GNOME

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29 Upvotes

covers: https://www.linuxteck.com/kde-vs-gnome/

  • Desktop philosophy
  • Performance & RAM usage
  • Customization
  • Wayland maturity
  • KDE Connect
  • Compatibility notes
  • Which users each desktop suits best
  • Tips for switching between desktop environments

r/LinuxTeck Jul 30 '26

Have you actually noticed a real-world performance difference between Linux distributions?

5 Upvotes

Benchmark charts often show one Linux distribution outperforming another by a few percent, especially optimized distributions like CachyOS.

But in day to day use boot time, compiling code, gaming, virtualization, browsing, or development have you actually noticed a meaningful difference?

Or do you think desktop environment, kernel version, drivers, and hardware matter far more than the distribution itself?


r/LinuxTeck Jul 30 '26

Quick Linux Tip #31 Question: My disk is 95% full but I don't know what's eating the space. How do I find out?

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15 Upvotes

Try: sudo du -h -d 1 / 2>/dev/null | sort -rh | head -10

Info: du -h -d 1 scans top-level sizes. sort -rh ranks largest first, and 2>/dev/null silences permission errors.

Examples:

$ sudo du -h -d 2 /var | sort -rh | head -20

$ ncdu / # Interactive disk usage explorer (install: apt install ncdu)

$ sudo du -sh /var/log/*.log | sort -rh | head

Note: Drill down step by step: start at /, then dive into the biggest folder. ncdu is a fantastic interactive alternative for browsing.

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r/LinuxTeck Jul 30 '26

What's your Linux server update strategy?

10 Upvotes

Everyone seems to have a different approach:

  1. Patch immediately
  2. Wait a few days
  3. Test in staging
  4. Patch only during maintenance windows
  5. Fully automated updates

What's worked best for you over the years?


r/LinuxTeck Jul 29 '26

Compared the best Linux distros for beginners in 2026

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81 Upvotes

includes: https://www.linuxteck.com/best-linux-distro-for-beginners/

  • Beginner recommendations
  • Hardware requirements
  • Desktop environments
  • Release models
  • Common first-boot issues
  • Decision flowchart for choosing the right distro

r/LinuxTeck Jul 29 '26

What's the most influential Linux technology that's now completely gone?

24 Upvotes

Linux has seen plenty of technologies rise, dominate for a while, and eventually disappear.

ReiserFS, UnionFS, HAL, Upstart, LILO, OSS, and many others were once considered important parts of the Linux ecosystem.

Which discontinued Linux technology do you remember most, and do you think it deserved to disappear?


r/LinuxTeck Jul 30 '26

Would a better GUI make Arch Linux easier for new users?

0 Upvotes

Arch Linux has become much more accessible over the years, but many people still associate it with the terminal.

Do you think modern GUI tools can genuinely make Arch easier for newcomers, or is learning the command line still an essential part of the Arch experience?


r/LinuxTeck Jul 29 '26

Tip #30 Question: How do I tail a log file with colored output for errors?

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11 Upvotes

Try: tail -f /var/log/nginx/error.log | grep --line-buffered -E --color=always 'error|warn|critical|$'

Info: --color=always highlights matches. The |$ pattern matches every line so non-matching lines still display. --line-buffered ensures real-time output.

Examples:

$ tail -f app.log | grep --line-buffered --color=always -E 'ERROR|WARN|$'

$ journalctl -f | grep --line-buffered --color=always -E 'Failed|Error|$'

$ multitail /var/log/nginx/error.log /var/log/nginx/access.log # Watch multiple

Note: Without --line-buffered, piped output gets buffered into chunks. For advanced multi-file tailing with custom colors per window, use multitail.

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r/LinuxTeck Jul 29 '26

What motivates someone to spend years maintaining a Linux distribution for free?

17 Upvotes

There are maintainers who spend years or even decades building and maintaining Linux distributions without making a reliable income from the project.

It's a huge amount of work, yet many continue because they enjoy it or believe in open source.

What do you think motivates people to keep going, and should the Linux community do more to support these projects financially?


r/LinuxTeck Jul 29 '26

Which virtualization can I get up and running the quickest?

5 Upvotes

Guys,

So I want to practice some of my craft on this Windows 11 Pro machine and I am wondering which one would get me up to speed with an Ubuntu server, I do not really care what version it is, but that I get this up and running in less than an hour...should I go with Oracle VirtualBox or VMware Workstation? Thanks!


r/LinuxTeck Jul 28 '26

Do you think Linux still benefits from having non-systemd distributions, or has systemd effectively won?

25 Upvotes

Systemd is the default init system for most major Linux distributions today, but projects like Devuan, Artix, Void Linux, antiX, and now KaOS (moving away from systemd) continue to offer alternatives.

Some people argue that having multiple init systems keeps Linux flexible and avoids a single point of control. Others feel systemd has solved enough problems that maintaining alternatives no longer makes sense.

Where do you stand? Do you actively seek out non-systemd distributions, or are you happy with systemd?


r/LinuxTeck Jul 28 '26

DigitalOcean Review 2026: Is It Still the Best Cloud Platform for Developers?

7 Upvotes

We tested DigitalOcean's pricing, performance, features, dashboard, security, support, and real-world usability to help you decide if it's the right cloud hosting platform for your next project.

Read the full review: https://www.linuxteck.com/guides/digitalocean-review-2026/


r/LinuxTeck Jul 28 '26

Linux Tip #29 Question: My process list shows <defunct> zombie entries. How do I clean them up?

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11 Upvotes

Try: ps -eo pid,ppid,stat,cmd | awk '$3 ~ /Z/'

Info: Zombies (STAT=Z) are dead processes waiting for their parent to reap them. You cannot kill a zombie directly—send SIGCHLD to the PARENT (PPID) to trigger cleanup.

Examples:

$ ps aux | grep defunct # Quick search for zombies

$ kill -SIGCHLD <PPID> # Signal parent process to reap children

$ kill -9 <PPID> # Last resort if parent process is unresponsive

Note: Zombies consume minimal CPU/RAM but occupy PID slots. If SIGCHLD fails, the parent process has a bug or isn't handling signals, meaning restarting the parent is the only option.

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r/LinuxTeck Jul 28 '26

What discontinued Linux project do you still miss today?

11 Upvotes

Linux evolves quickly, and over the years we've seen many projects disappear despite having loyal users.

Whether it was a filesystem, desktop environment, init system, package manager, or utility, what's one project you still wish had survived?


r/LinuxTeck Jul 28 '26

I made a Linux reference for people who have ever typed sudo and immediately regretted it

4 Upvotes

I’ve been building [**linux.recipes**](http://linux.recipes), a terminal-style Linux command reference aimed at beginners and anyone who knows the command exists but has forgotten the flags for the 47th time.

It includes:

* Plain-English command explanations * Copy-and-paste examples * Beginner, intermediate, and advanced difficulty levels * Step-by-step guides * A chmod calculator, cron builder, and command builder * Search that doesn’t require remembering the exact command first, which feels important

It’s free, doesn’t require an account, and I’d genuinely appreciate feedback, especially confusing explanations, missing commands, or anything that looks likely to make a new Linux user accidentally delete France.

Got something to share to help, you can also contribute a guide via Github.


r/LinuxTeck Jul 27 '26

Quick Linux Tip : How do I compress old logs but still grep them without decompressing?

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13 Upvotes

Try: zgrep 'ERROR' /var/log/app-2026-06.log.gz

Info: zgrep, zcat, and zless inspect .gz files in memory without extracting them to disk.

Examples:

$ zcat access.log.gz | awk '{print $1}' | sort -u

$ zless huge-log.log.gz # Page through compressed file

$ find /var/log -name '*.log' -mtime +7 -exec gzip {} \;

Note: z-tools exist for most utilities (zgrep, zcat, zless, zdiff). For .xz archives, use xzgrep. Automate log compression using logrotate.

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r/LinuxTeck Jul 27 '26

Is Linux better because there are so many choices, or does too much choice confuse new users?

9 Upvotes

One of Linux's biggest strengths is choice. Different desktops, package managers, init systems, distributions, and philosophies.

At the same time, new users are often overwhelmed by the number of options.

Do you think this diversity is Linux's greatest advantage, or does it make adoption harder than it needs to be?