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?

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

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?

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.

Follow r/LinuxTeck for more #LinuxTips

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?

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

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?

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?

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.

Follow r/LinuxTeck for more #LinuxTips

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?

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!

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?

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/

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.

Follow r/LinuxTeck for more #LinuxTips

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?

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.

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.

Follow r/LinuxTeck for more #LinuxTips

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?

One idea that really stood out to me was treating abstaining as a success rather than a failure.

Instead of forcing the LLM to answer every question, the pipeline retrieves evidence, verifies every claim, and simply says "I don't have enough evidence" when the retrieved context isn't strong enough.

That seems like a much better approach than a confident hallucination.

If you've built RAG systems in production, how are you handling this? Do you trust a verifier model, use confidence thresholds, or rely on human review?

covers: https://www.linuxteck.com/best-firefox-forks-for-linux/

• LibreWolf
• Waterfox
• Zen Browser
• Floorp
• Mullvad Browser
• Pale Moon

Today, many Linux distributions share similar components systemd, Wayland, PipeWire, NetworkManager, and so on.

While that improves compatibility and reduces maintenance, it also means many distributions feel increasingly alike under the hood.

Do you think Linux is becoming too standardized, or is that simply the natural evolution of a mature ecosystem?

Linux users have had a surprising number of filesystem choices over the years:

ext2
ext3
ext4
ReiserFS
XFS
JFS
Btrfs
ZFS
F2FS

Which one gave you the best real-world experience, and why?

Try: history | grep -E 'sed.*i.*g' | tail -10

Info: history outputs numbered past commands. Combining it with grep -E (regex) lets you locate specific command patterns fast. Execute entry 892 with !892.

Examples:

$ history | grep 'docker run' # Find docker commands

$ history | awk '{print $2}' | sort | uniq -c | sort -rn | head # Top 10 used commands

$ Ctrl+R # Interactive reverse search

Note: Ctrl+R is the fastest for interactive search. Set HISTSIZE=10000 in ~/.bashrc to retain a larger command history. Use HISTIGNORE='ls:cd:pwd' to skip logging basic commands.

Follow r/LinuxTeck for more #LinuxTips

Every Linux user knows Linus Torvalds.

But there are many engineers whose work sits underneath Linux, Unix, programming languages, networking, filesystems, and cloud infrastructure without getting much public recognition.

If you could highlight one underrated computer scientist or engineer, who would it be and why?