Dennis Vs. OpenShift

4x AWS Certified | Comptia Trifecta | CCNA| RHCSA| CKA & D | Python🐍| Linux🐧| Terraform🏗️| Working on RHCE

[Dennis Vs. OpenShift @DennisInTech]

Starting my RHCA journey — OpenShift, Bash, Python & GovTech systems.

No fluff. Just weekly labs, public learning, and GitHub proof.

Follow for:
- OpenShift & Kubernetes labs
- Bash/Python scripting
- Real-world infrastructure

#RHCAJourney #Kubernetes #Linux #DevOps #OpenShift

[Dennis Vs. OpenShift @DennisInTech]

@EngineeredEV https://t.co/y2t2yWuMWP

His course and exam labs are all you need need honestly. I also would just utilize AI like you’ve been doing and tell it to teach you like you were 10 years old to break down stuff you truly don’t understand.

[Dennis Vs. OpenShift @DennisInTech]

@SymoneBeez Stay safe @SymoneBeez 🙏🙏

[Dennis Vs. OpenShift @DennisInTech]

@Tomio_B Easy money

[Dennis Vs. OpenShift @DennisInTech]

@sp4rtan300 Teach me too sensei🥷🥷

[Dennis Vs. OpenShift @DennisInTech]

@sp4rtan300 You earned all your blessings bro.✊🏿✊🏿✊🏿

[Dennis Vs. OpenShift @DennisInTech]

@sp4rtan300 Most defintely

[Saiyam Pathak @SaiyamPathak]

Kubesimplify brings you the best available on the internet in the kubernetes and cloud native space!

[Dennis Vs. OpenShift @DennisInTech]

@sp4rtan300 Happy bday bro!!

[Abdulkadir | Cybersecurity @cyber_razz]

Common Networking Protocols and Ports

[Security Trybe @SecurityTrybe]

75+ Linux commands every user should know

[cybroxkid @cybroxkid]

What is RAID?

[Sahn Lam @sahnlam]

8 Popular Network Protocols Explained in 1 Simple Diagram

[Akhilesh Mishra @livingdevops]

The Only Linux Command List You'll Need to Bookmark:

Daily Heroes:
• ps aux | grep {process} - Find that sneaky process
• lsof -i :{port} - Who's hogging that port?
• df -h - The classic "we're out of space" checker
• netstat -tulpn - Network connection detective
• kubectl get pods | grep -i error - K8s trouble finder

Log Warriors:
• tail -f /var/log/* - Real-time log watcher
• journalctl -fu service-name - SystemD log stalker
• grep -r "error" . - The error hunter
• zcat access.log.gz | grep "500" - Compressed log ninja
• less +F - The better tail command

Container Whisperers:
• docker ps --format '{{.Names}} {{.Status}}' - Clean status check
• docker stats --no-stream - Quick resource check
• crictl logs {container} - Raw container stories
• docker exec -it - The container backdoor
• podman top - Process peek inside containers

System Detectives:
• htop - System resource storyteller
• iostat -xz 1 - Disk performance poet
• free -h - Memory mystery solver
• vmstat 1 - System vital signs
• dmesg -T | tail - Kernel's recent gossip

Network Ninjas:
• curl -v - HTTP conversation debugger
• dig +short - Quick DNS lookup
• ss -tunlp - Socket statistics simplified
• iptables -L - Firewall rule reader
• traceroute - Path finder

File Jugglers:
• find . -name "*.yaml" -type f - YAML hunter
• rsync -avz - Better file copier
• tar -xvf - The unzipper (yes, we all google this)
• ln -s - Symlink wizard
• chmod +x - Make it executable

Performance Profilers:
• strace -p {pid} - System call spy
• tcpdump -i any - Network packet sniffer
• sar -n DEV 1 - Network stats watch
• uptime - Load average at a glance
• top -c - Classic process viewer

Git Essentials:
• git log --oneline - History simplified
• git reset --hard HEAD^ - The "oops" eraser
• git stash - The work hider
• git diff --cached - What's staged?
• git blame - The "who did this?" resolver

Quick Fixes:
• sudo !! - Run last command with sudo
• ctrl+r - Command history search
• history | grep - Command time machine
• alias - Command shortcut maker
• watch - Command repeater

[Skilled Coder @theskilledcoder]

DNS - All You Need to Know

[Dennis Vs. OpenShift @DennisInTech]

@JustinTimeJLew Congrats 🔥🔥🔥🔥

[Dennis Vs. OpenShift @DennisInTech]

@SymoneBeez @GovTechCon 🔥🔥🔥

[Dennis Vs. OpenShift @DennisInTech]

@sadies_page Congrats🔥🔥

[Dennis Vs. OpenShift @DennisInTech]

@sp4rtan300 👀👀

[Dennis Vs. OpenShift @DennisInTech]

@sp4rtan300 😂😂