LinuxTeck | Linux & DevOps Tips retweeted
Andrej Karpathy spent 2h showing how he actually uses AI day to day
he's a co-founder of OpenAI and led AI at Tesla, so when he shows how he works, it’s worth watching
and the whole session is just him telling the machine what he wants in simple terms, like he's briefing a coworker
watch what's actually happening the entire time:
> he describes the task in normal words
> it goes off and does the work
> he glances at the result and nudges it with one more sentence
that's the whole skill, and you've had it since you learned to talk
the only gap between that and a worker that runs on its own is handing that sentence a schedule and the tools to act
check his work, then build the version that keeps working when you stop
LinuxTeck | Linux & DevOps Tips retweeted
The Linux terminal does not just save time — it builds engineers 🐧
Caption:5 reasons terminal users work at a different level:
#LinuxTeck #Linux #DevOps #SysAdmin #Terminal #OpenSource
LinuxTeck | Linux & DevOps Tips retweeted
Linux 7.0 Quietly Kills a 38-Year TCP Design Problem - AccECN Is Now On by Default
linuxteck.com/linux-7-0-acce…
LinuxTeck | Linux & DevOps Tips retweeted
Most cyber attacks don’t start with exploits.
They start with DNS queries.
Attackers use DNS to:
• map infrastructure
• discover hidden services
• identify weak points
• exfiltrate data
DNS looks normal - that’s exactly why it works.
#CyberSecurity #DNS #Infosec #LinuxTeck
LinuxTeck | Linux & DevOps Tips retweeted
What is SRE?
It’s engineering reliability into systems — not manually fixing them every night.
If you know Linux well, you’re already halfway there.
SRE is a mindset first, title second.
#SRE #Linux #DevOps #linuxteck
LinuxTeck | Linux & DevOps Tips retweeted
Linux → Control & Stability
Windows → Compatibility & Convenience
It’s not about which is better.
It’s about what you’re optimizing for.
Smart engineers choose tools, not sides.
#LinuxTeck #Linux #Troubleshooting #SysAdmin #SysAdminLife #Windows #TechTalk #Technology
LinuxTeck | Linux & DevOps Tips retweeted
Day 14 – tar vs compression
tar = bundles files
gzip/bzip2/xz = shrink files
Stop calling tar “compression.”
Know the difference.
#LinuxTeck #Linux #DevOps #ServerManagement #Troubleshooting #LinuxAdmin #linuxcommands #LinuxAdministration #linuxtraining #LinuxBasics #linuxtips
LinuxTeck | Linux & DevOps Tips retweeted
Still using passwords for SSH?
Switch to key-based authentication:
ssh-keygen -t ed25519
ssh-copy-id user@server
Then disable password login.
Stronger security. Zero brute-force risk.
#LinuxTeck #Linux #DevOps #Troubleshooting #LinuxAdmin #SSH #ServerSecurity #cloud
LinuxTeck | Linux & DevOps Tips retweeted
Rebooting isn’t troubleshooting.
Before you touch production, run:
systemctl status
journalctl -xe
systemctl restart
Visibility > Panic.
#LinuxTeck #Linux #DevOps #ServerManagement #Troubleshooting #LinuxAdmin #linuxcommands #LinuxAdministration #SysAdmin #SRE #Systemd
LinuxTeck | Linux & DevOps Tips retweeted
Linux confusion isn’t about difficulty.
It’s about missing mental models.
Fix that, and Linux clicks.
#LinuxTeck #linux #DevOps #LinuxAdmin #linuxcommands #LinuxAdministration #linuxtraining #LinuxBasics #linuxtips #ITOperations #SysAdmin #SysAdminLife
LinuxTeck | Linux & DevOps Tips retweeted
Linux architecture isn’t complex.
It’s layered.
Once you see kernel, shell, and user space,
everything clicks.
#LinuxTeck #linux #DevOps #LinuxAdmin #linuxcommands #LinuxAdministration #linuxtraining #LinuxBasics #linuxtips #ITOperations #SysAdmin #SysAdminLife
LinuxTeck | Linux & DevOps Tips retweeted
Linux permissions aren’t complicated.
They’re logical.
Once you understand rwx
and who they apply to,
everything makes sense.
#LinuxTeck #linux #DevOps #LinuxAdmin #linuxcommands #LinuxAdministration #linuxtraining #LinuxBasics #linuxtips #ITOperations #SysAdmin #SysAdminLife
LinuxTeck | Linux & DevOps Tips retweeted
Linux load average ≠ CPU usage.
It shows system pressure.
That distinction matters in production.
#LinuxTeck #linux #DevOps #LinuxAdmin #linuxcommands #LinuxAdministration #linuxtraining #LinuxBasics #linuxtips #ITOperations #SysAdmin #SysAdminLife
LinuxTeck | Linux & DevOps Tips retweeted
DNS explained — simply.
Names ➝ Numbers ➝ Websites.
Once you understand DNS,
the internet starts making sense.
💾 Save this
Follow @LinuxTeck for daily Linux & networking learning
#dns #networking #linux #devops #learntech
facebook.com/reel/9275668730…
LinuxTeck | Linux & DevOps Tips retweeted
How LVM Works in Linux
LVM in 4 steps:
1️⃣ Create Physical Volumes (pvcreate)
2️⃣ Create Volume Group (vgcreate)
3️⃣ Create Logical Volume (lvcreate)
4️⃣ Mount & resize anytime
Flexible storage > static partitions.
#LinuxTeck #linux #DevOps #LinuxAdmin #linuxcommands
LinuxTeck | Linux & DevOps Tips retweeted
How Ports Work in Linux
A request hits your server.
Linux does this:
1️⃣ Check IP
2️⃣ Check destination port
3️⃣ Match listening service
4️⃣ Forward traffic
5️⃣ Send response
Ports = apartment numbers inside your server.
#LinuxTeck #Linux #DevOps #Networking
LinuxTeck | Linux & DevOps Tips retweeted
Why is the Linux kernel called vmlinuz?
It wasn’t always called that.
/unix
→ /boot/unix
→ /boot/vmunix
→ vmlinuz
vm = Virtual Memory
linu = Linux
z = compressed
Old naming. Smart engineering.
#LinuxTeck #Linux #Kernel #OpenSource



















