r/LinuxTeck

▲ 37 r/LinuxTeck+1 crossposts

Making Fedora as Secure ass Possible

I'm relatively new to Linux as a whole, and have been o Fedora a few months.

Any recommendations as to how to make it as secure as possible without crippling functionality?

reddit.com
u/FrankieShaw-9831 — 9 days ago

Is Ubuntu actually overrated or are Linux users just too hard to please?

Ubuntu gets plenty of criticism for Snaps, Canonical’s decisions and increasing resource requirements. But at the same time, it remains one of the most widely supported and approachable Linux distros.

Maybe the real issue is that we keep judging Ubuntu against distros designed for completely different goals.

If you had to recommend one Linux distro to someone leaving Windows today, would Ubuntu still make your shortlist? Why or why not?

reddit.com
u/Candid_Athlete_8317 — 10 days ago

If Microsoft 365 works well on Linux, does Windows lose its biggest advantage?

For years, “I need Microsoft Office” has been one of the strongest reasons people give for staying on Windows. Now projects like Bottles are getting surprisingly close to making that less of a limitation.

But there’s a catch: an unofficial compatibility layer can break after one Microsoft update.

Would you trust Linux + Bottles for your everyday Office work, or would you still keep Windows around just for Microsoft 365?

reddit.com
u/Candid_Athlete_8317 — 11 days ago

At what point does distro hopping become a productivity problem?

I get why people keep trying new distros every week there’s something new that looks better than what you’re running.

But reinstalling, configuring everything again and relearning workflows has a real cost when Linux is also your work machine.

Do you think distro hopping is part of learning Linux, or does it eventually become procrastination disguised as experimentation?

reddit.com
u/Candid_Athlete_8317 — 10 days ago

ARP is broken. What are you checking first?

I’ve got a Linux host that can reach the gateway, but suddenly can’t talk to another machine on the same subnet.

Nothing obvious changed.

I’d probably start looking at the ARP/neighbour table, but I’m curious how others approach this.

Do you check ip neigh**, run a packet capture, look at the switch MAC table, check for a duplicate IP, or go somewhere else first?**

What’s the first thing you check when you suspect an ARP problem?

reddit.com
u/Candid_Athlete_8317 — 9 days ago

Kernel Modules: Check RAM Usage with lsmod - 89

Question: The kernel is using tons of RAM. Which modules are the biggest?

Try: `sudo lsmod | sort -k2 -rn | head -10`

Info: `lsmod` lists currently loaded kernel modules alongside their size in bytes. Sorting numerically by size quickly highlights memory-intensive display drivers, filesystems, and device modules.

Examples:

$ `sudo modinfo nvidia` # Display detailed kernel module info and parameters

$ `sudo modprobe -r nvidia` # Safely unload an unused kernel module

$ `cat /proc/meminfo | grep -i slab` # Check kernel slab memory utilization

Note: Kernel-level memory allocations appear under `Slab` in `/proc/meminfo`. Active modules (`Used by > 0`) cannot be unloaded until dependent processes or devices release them.

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u/Expensive-Rice-2052 — 11 days ago