Md. Shihab Uddin

Aspiring DevOps Engineer | Skilled in Linux, Docker, CI/CD, and AWS | Passionate about automation, cloud, and building scalable systems

[CNCF @CloudNativeFdn]

CNCF Ambassador applications close this Sunday, July 12. If you are active in the community, love mentoring contributors, and want to help other builders thrive with open source, have a look at what it means to be a CNCF Ambassador before the weekend: https://t.co/rFvrtUAFNz

[Puneet Patwari @system_monarch]

I've been a backend Engineer for 12+ years. Today, I'm a Principal Engineer at Atlassian.

I've designed systems that handle millions of requests. Sat on both sides of system design interviews.

Reviewed more architecture docs than I can count.

Starting today, I'm breaking down the fundamentals of scaling for the next 25 days.

If you're learning system design bookmark this thread, you're going to get a lot of learning from this.

[CBS Sports Golazo ⚽️ @CBSSportsGolazo]

Bangladesh with a historic win over San Marino, gaining their first-ever victory on European soil! 👏🇧🇩

[Lex Fridman @lexfridman]

Here's my conversation all about @FFmpeg, the legendary open-source software powering most video on the Internet. In the episode, I talk with Jean-Baptiste Kempf and Kieran Kunhya. JB is lead developer of VLC and Kieran is FFmpeg contributor, codec engineer, and the person behind the now-infamous @FFmpeg account on X.

VLC (@videolan), by the way, is also a legendary piece of open-source software: it's a video player that can open basically anything & has been downloaded over 6 billion times.

I think both FFmpeg and VLC are two of the most important and impactful software systems ever created, both open source, and both created & maintained by volunteers: brilliant engineers from all walks of life.

Thank you to everyone who contributed to FFmpeg and VLC, and in general to all engineers giving their heart & soul to building systems used by millions (or billions) of people, and often doing so not for money, status, or fame, but purely for the love of building great software and doing good for the world.

Thank you to the builders! 🙏❤️

Shoutouts in this chat to @ID_AA_Carmack @karpathy @elonmusk @TimSweeneyEpic and everyone who is a contributor & fan of open source!

It's here on X in full and is up everywhere else (see comment).

Timestamps:
0:00 - Episode highlight
2:17 - Introduction
5:35 - Weirdest things VLC opens
9:59 - How video playback works
19:20 - Video codecs and containers
30:07 - FFmpeg explained
51:07 - Linus Torvalds
55:46 - Turning down millions to keep VLC ad-free
1:10:04 - FFmpeg & Google drama
1:29:18 - FFmpeg developers
1:35:55 - VLC and FFmpeg
1:40:29 - History of FFmpeg
1:43:46 - Reverse engineering codecs
1:57:01 - FFmpeg testing
2:01:08 - Assembly code (handwritten)
2:25:26 - Rust programming language
2:34:42 - FFmpeg and Libav fork
2:43:04 - Open source burnout
2:50:51 - x264 and internet video
3:04:07 - Video compression basics
3:11:04 - CIA and fake VLC
3:21:39 - Ultra low latency streaming
3:39:07 - AV2 codec and video patents
3:48:59 - VLC backdoors
3:59:14 - Video archiving
4:05:51 - Future of FFmpeg and VLC

[Vercel @vercel]

We’ve identified a security incident that involved unauthorized access to certain internal Vercel systems, impacting a limited subset of customers. Please see our security bulletin:
https://t.co/0S939n3qHC

[Amazon Web Services @awscloud]

Announcing Amazon S3 Files.

The first and only cloud object store with fully-featured, high-performance file system access.

Learn more here. https://t.co/rNuWa5Rsi2

[Adib Mohsin @adib_builds]

Built an embeddable coding agent library, Cersei, inspired by the Claude Code architecture, now anyone can embed coding agents directly to @rustlang apps.

Results:
• ~7× higher throughput than Claude Code
• ~2× faster than Codex
• 0.098 ms memory recall (vs 7545 ms / 5751 ms)

[AWS Developers @awsdevelopers]

‼️The AWS console has been retired. All services must now be used through the CLI only.

[FFmpeg @FFmpeg]

FFmpeg is moving to Rust 🦀

Our use of C and Assembly in FFmpeg has been an unacceptable violation of safety.

FFmpeg will be running 10x slower - but we're doing it for your safety.

All your videos will appear green - safety first, working software later.

[DevopsCube @devopscube]

A must know system design concepts for DevOps engineers.

#devops

[MIT CSAIL @MIT_CSAIL]

A prompt you can use in Claude to help build & launch apps, v/@milesdeutscher.

[TryHackMe @tryhackme]

🎁 We're giving away 20 FREE SAL2 certifications 🎁
The wait is over...SAL2 is officially here 🚀 Security Analyst Level 2 is the certification that proves you can investigate, decide, and lead in a real SOC. The only defensive cert that covers every domain a real L2 analyst faces!

💸 With a special launch price of $599 valid until 2 April only.
🚀 Comment, SHARE and fill in the form to enter the free cert giveaway ▶️ https://t.co/j4tOzqIjuo

❓Want to know more what SAL2 is about see here: https://t.co/DAej3B9q7j

[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
Which ones are your go-to commands?

[Mashood tried Ops @fromcodetocloud]

Devops Engineers after automating End to End CI CD pipeline

[Govardhana Miriyala Kannaiah @govardhana_mk]

25 Blogs to Learn 25 DevOps Concepts 👇

1) Terraform Project Structure: https://t.co/RCd6GViEQF
2) Terraform State: https://t.co/g9MgHnK6J8
3) Terraform Graphs: https://t.co/fIUI9vPzeg
4) Terraform Dynamic Blocks: https://t.co/55OU1DgC5s
5) Crossplane with ArgoCD: https://t.co/QbUUv0Pufy
6) GitOps Push vs. Pull Architecture: https://t.co/4MMWiei0oe
7) Multi Cloud GitOps Workflow: https://t.co/ePKz8nZU8P
8) Kyverno with ArgoCD: https://t.co/jQOZb2bmY7
9) Dockerfile vs. Docker Compose: https://t.co/dyl0SckVos
10) Docker Image: https://t.co/rncpfjqeZo
11) Docker Cache: https://t.co/8IBdT1THxL
12) Docker stats: https://t.co/eUfChMb9Yg
13) Docker Scout: https://t.co/1BPuRjLJ8r
14) GitHub Actions Workflow: https://t.co/KP8khyEMVZ
15) GitHub Actions Optimization: https://t.co/YqnQ7jkfXo
16) GitHub Branching Strategy: https://t.co/JYoBX6WnzN
17) Ansible Architecture: https://t.co/wevEiODC6M
18) Ansible Roles: https://t.co/Ut4iRgPhTa
19) Ansible Dynamic Inventory: https://t.co/pYGP9HVyaL
20) Kubernetes Architecture: https://t.co/PuZ6YExqKt
21) POD Lifecycle: https://t.co/7yXNhSBcwl
22) pod.yaml Breakdown: https://t.co/JhnPhMJb4i
23) VPC Network Segmentation: https://t.co/ueOV6X1Hvh
24) Lambda Integrations: https://t.co/jHa82Yyzdb
25) Serverless Architecture: https://t.co/KeUOuuekkw

54K+ read my DevOps and Cloud newsletter: https://t.co/WBucLdwLhJ

What do we cover:
DevOps, Cloud, Kubernetes, IaC, GitOps, MLOps

🔁 Consider a Repost if this is helpful

[Ryo Lu @ryolu_]

how can engineers (or anyone) get better at design?

i get this question a lot. as someone who went from cs to design, here's a real path:

start with systems thinking
engs already get this. design is just systems for humans & our senses, instead of machines. read “thinking in systems” if you haven't.

learn the fundamentals
there are systems we humans evolved for centuries to visually present and receive information. you cannot escape these even for the cli:
- typography — start with “details in typography” by jost hochuli
- color basics — start with “interaction of color” by josef albers
- grid systems — start with “grid systems” by josef müller-brockmann
- visual hierarchy, reading rhythm, symbols & conceptual systems, motion, accessibility, … — you’ll pick more up as you go

open your eyes & brain
look at things around you, digital and natural. observe the beauty and sameness in everything. think why is it made this way. make connections between what you observe and what you think and make. break away from rigidity, linear thinking, let loose. stare at the sky, do nothing. see through everything.

then just start making stuff
now that you notice things, try to make things better, your way first. redesign apps you use daily. copy designs you love pixel by pixel — you'll learn more in a week than months of theory. then share it with others, get feedback, and design for more people.

key mindset shift: feelings first
stop optimizing for the computer, start optimizing for the human. engineers think in edge cases and error states. designers think in happy paths and emotions. the feelings and how things fold together ends up to be way more important to humans than the edge cases.

tools don't matter much
Figma is industry standard. learn it in a weekend (it’s basically visual flexbox). use Cursor to dismantle and prototype with existing design systems and study how they are built — frontends go deep.

most important: find your design voice through constraints. pick one great typeface, limited color palette, and make 10 different layouts. constraints breed creativity. iteration is how you get there.

great engineers already understand systems, logic, and problem-solving. just need to apply that to human concepts and problems instead of technical ones.

start tomorrow. redesign your personal website or a simple app. ship it. share it. repeat.

[Lex Fridman @lexfridman]

Here's my 6 hour conversation with @dhh, a legendary programmer, creator of Ruby on Rails, author, and race car driver. This was a fun and inspiring conversation on everything from the future of programming & AI to the nature of happiness & productivity to the value of family, getting married and having kids.

X limits video length to 6 hours. So this full convo doesn't fit (by a few minutes). So, the first 6 hours are here on X. The full version is up everywhere else (see comment).

Timestamps:
0:00 - Episode highlight
1:21 - Introduction
2:32 - Programming - early days
19:57 - JavaScript
30:16 - Google Chrome and DOJ
38:03 - Ruby programming language
45:14 - Beautiful code
1:03:15 - Metaprogramming
1:06:36 - Dynamic typing
1:13:55 - Scaling
1:26:47 - Future of programming
1:44:18 - Future of AI
1:50:13 - Vibe coding
1:58:45 - Rails manifesto: Principles of a great programming language
2:23:11 - Why managers are useless
2:32:32 - Small teams
2:38:39 - Jeff Bezos
2:53:57 - Why meetings are toxic
3:01:43 - Case against retirement
3:09:00 - Hard work
3:14:38 - Why we left the cloud
3:17:48 - AWS
3:27:07 - Owning your own servers
3:33:19 - Elon Musk
3:43:01 - Apple
3:54:48 - Tim Sweeney
4:06:22 - Fatherhood
4:32:04 - Racing
4:59:08 - Cars
5:04:26 - Programming setup
5:19:35 - Programming language for beginners
5:32:53 - Open source
5:41:46 - WordPress drama
5:53:03 - Money and happiness
6:01:56 - Hope

[Md. Shihab Uddin @shihabuddin369]

@_0b1d1 PDF

[Dhanian 🗯️ @e_opore]

The Complete DevOps Engineering Tech Stack

Core DevOps Principles & Culture
├── Cultural Foundation
│ ├── Collaboration & Communication
│ ├── Shared Ownership
│ ├── Continuous Improvement
│ └── Blameless Post-mortems
├── DevOps Practices
│ ├── Infrastructure as Code (IaC)
│ ├── Continuous Integration
│ ├── Continuous Deployment
│ ├── Monitoring & Observability
│ └── Site Reliability Engineering (SRE)

Cloud Platforms & Infrastructure
├── Multi-Cloud Strategy
│ ├── AWS (EC2, S3, IAM, VPC)
│ ├── Microsoft Azure (VM, Blob Storage, Active Directory)
│ ├── Google Cloud Platform (Compute Engine, Cloud Storage)
│ └── Cloud Migration Strategies
├── Cloud Services
│ ├── Compute (EC2, Lambda, Containers)
│ ├── Storage (S3, EBS, Cloud Storage)
│ ├── Networking (VPC, Load Balancers, CDN)
│ └── Database Services (RDS, DynamoDB, Cloud SQL)
└── Cloud Security
├── Identity & Access Management (IAM)
├── Security Groups & Firewalls
├── Encryption & Key Management
├── Compliance & Governance
└── Cloud Security Best Practices

Containerization & Orchestration
├── Container Fundamentals
│ ├── Docker & Container Runtime
│ ├── Dockerfile Best Practices
│ ├── Multi-stage Builds
│ ├── Container Security Scanning
│ └── Container Registries (Docker Hub, ECR, GCR)
├── Kubernetes Ecosystem
│ ├── Kubernetes Architecture
│ ├── Pods, Deployments, Services
│ ├── ConfigMaps & Secrets
│ ├── Ingress Controllers
│ └── Custom Resource Definitions (CRDs)
└── Orchestration Tools
├── Helm Charts
├── Kustomize
├── Kubernetes Operators
├── Service Mesh (Istio, Linkerd)
├── Kubernetes Security (RBAC, Pod Security Policies)

Infrastructure as Code (IaC)
├── Configuration Management
│ ├── Ansible
│ ├── Chef
│ ├── Puppet
│ └── SaltStack
├── Infrastructure Provisioning
│ ├── Terraform
│ ├── AWS CloudFormation
│ ├── Pulumi
│ ├── Crossplane
│ └── Terragrunt
└── IaC Best Practices
├── Version Control for Infrastructure
├── Modular Code Design
├── State Management
├── Drift Detection
├── Policy as Code (Open Policy Agent)

CI/CD & Automation
├── CI/CD Platforms
│ ├── GitHub Actions
│ ├── GitLab CI/CD
│ ├── Jenkins
│ ├── CircleCI
│ └── Azure DevOps
├── Pipeline Design
│ ├── Multi-stage Pipelines
│ ├── Parallel Execution
│ ├── Environment Promotion
│ ├── Rollback Strategies
│ └── Blue-Green Deployments
└── Automation Tools
├── Scripting (Bash, Python, Go)
├── API Automation
├── ChatOps (Slack/Discord Integration)
├── Automated Testing in Pipeline
├── Security Scanning in CI/CD

Monitoring & Observability
├── Metrics & Monitoring
│ ├── Prometheus
│ ├── Grafana
│ ├── Datadog
│ ├── New Relic
│ └── CloudWatch & Azure Monitor
├── Logging & Analysis
└── Tracing & APM

Security & Compliance
├── DevSecOps Integration
├── Compliance & Governance
└── Network Security

Database & Storage Operations
├── Database Management
├── Storage Solutions
└── Data Protection

Networking & Service Mesh
├── Cloud Networking
├── Service Mesh
└── API Management

Scripting & Automation
├── Programming Languages
├── Automation Frameworks
└── System Administration

Real-World DevOps Scenarios
├── Microservices Deployment
├── Multi-Cloud Strategy
├── Legacy Modernization
└── SRE Implementation

Career Development & Best Practices
├── DevOps Methodology
├── Tools & Certification
└── Soft Skills

Master Modern DevOps Engineering with our complete eBook: https://t.co/sFVvruk8FW

[Mashood tried Ops @fromcodetocloud]

5 AWS Projects You Need to Do to Get Hands-On

1.3-Tier Web App (EC2 + RDS + ALB): Learn how real-world applications are architected in the cloud.

2.Serverless File Uploads (S3 + Lambda + DynamoDB): Understand event-driven automation without managing servers.

3. CI/CD Pipeline (Jenkins / GitHub Actions + ECS/ECR): Master continuous integration and deployment like a DevOps pro.

4.Static Website Hosting (S3 + CloudFront): Learn cost-effective, globally available website hosting.

5.Monitoring Stack (CloudWatch + SNS + Grafana): Get real experience in observability and incident alerting.