David Nithil

#Musiclover #GuitarFreak #MechanicalEngineer in IT environment #DevOpsLead #Optionenthusiast

[Kundan Prajapati @ScholarTrading]

What the hell is happening to the Indian stock market?

Dear @SEBI_India & @NSEIndia @BSEIndia

How many times do you expect traders to rebuild their entire business?

> December 2020 – 50% leverage removed
> March 2021 – 75% leverage removed
>September 2021 – 100% leverage removed

We adapted.

Yes, leverage is a double-edged sword. But thousands of genuine traders with smaller capital were affected. Still, we adapted.

> September 2023 – Bank Nifty expiry was shifted from Thursday to Wednesday, while BSE launched Sensex weekly expiry on Friday. Suddenly, we had expiries almost every trading day.

Many traders, especially algo and 0-DTE traders, redesigned their entire systems.

We adapted.

> November 2024 – Weekly expiries of FinNifty, Bank Nifty and other indices were removed. Only Nifty and Sensex weekly expiries remained.

Again, thousands of traders had to change their strategies.

We adapted.

> February 2025 – Expiry-day margin benefit was removed.

STBT traders were hit badly.

We adapted.

> 1st September 2025 – Nifty expiry shifted from Thursday to Tuesday.

Again...

We adapted.

> Jane Street reportedly made billions of dollars from Indian markets over the years. Later, regulatory action was taken, and subsequently trading restrictions were lifted after payment of regulatory dues/settlement.

How exactly did all of this benefit Indian retailers?

Meanwhile...

- Option STT has increased massively over the last few years.
- Bid-ask spreads have widened.
- Slippage has increased.
- Global volatility has increased.
- Transaction costs keep rising.

We adapted to everything.

And now...

Closing Auction Session (CAS).

Seriously?

Every few months there's another structural change.

Every few months traders are forced to rebuild their systems.

Every few months liquidity takes another hit.

You say these changes are for retail investor protection.

Then please show us the data.

Can you show even one report proving that retail trading losses have actually reduced because of all these interventions?

If not, then what exactly are these constant changes achieving?

Instead of making markets more efficient, you're making trading more expensive, more complicated, and pushing serious traders towards crypto and international markets.

As a full-time trader, my inner soul genuinely cries today seeing the direction our markets are heading.

We survived leverage removal.

We survived daily expiries.

We survived removal of daily expiries.

We survived expiry changes.

We survived removal of expiry margin benefits.

We survived higher STT.

We survived wider spreads and slippage.

Now we are expected to survive CAS as well?

Enough is enough.

I request SEBI and the exchanges to reconsider this rule.

Before implementing such major structural changes, consult the trading community. There should be proper communication, public discussion, and representation from active traders.

I also request every trader to raise their voice through the proper channels. If you genuinely believe these changes are hurting market participants, please send your feedback or complaint to SEBI through its official grievance mechanism. And if anyone from the industry has a direct channel to the exchanges or regulators, please help convey the concerns of the trading community.

Please Retweet this so our voice reaches the right people.

Enough of silent adaptation. It's time the trading community is heard.

@AnilSinghvi_ @_anujsinghal @SarangSood @PRAFULKULKARN18 @adigitalblogger @iarjuntandon @JayneshKasliwal @sunilgurjar01 @piyushchaudhry @SantoshPasi @RakeshPujara1 @TanmayKurtkoti @justnottamomma @AshishGupta325

[Jaydeep @_jaydeepkarale]

Kubernetes Service Discovery Clearly Explained !!!

Every Pod in Kubernetes gets its own IP. Sounds great… until it breaks your system.

In a Deployment, you don’t run just one Pod. You run multiple replicas:

pod-1 → 10.0.0.1
pod-2 → 10.0.0.2
pod-3 → 10.0.0.3

Each Pod has its own IP. So far, so good.

Now imagine another service wants to call this app. What should it use?

10.0.0.1?

10.0.0.2?

10.0.0.3?

There’s no single stable address. Already a problem.

Now it gets worse. Pods are ephemeral. If a Pod dies:

it is deleted
a new Pod is created
with a completely NEW IP

Example:

old pod → 10.0.0.2 ❌
new pod → 10.0.0.9 ✅

Your system is now pointing to a dead IP. So the real problem is:

👉 Pod IPs are dynamic
👉 Clients need a stable way to connect

Without that, service-to-service communication is unreliable. This is exactly what Kubernetes Services solve.

Instead of pointing to Pods directly, you create a Service. And here’s the key idea:

👉 You don’t connect to Pods
👉 You connect to a logical group of Pods

How does Kubernetes know which Pods belong to that group?

Using: labels & selectors

Pods are tagged with labels:

labels:
app: user-service

The Service defines a selector:

selector:
app: user-service

That’s it. This simple mapping connects them. Now Kubernetes keeps track of:

“All Pods with label app=user-service belong to this Service”

Even if Pods die or restart or scale up/down, The mapping is always updated.

And the Service gives you a stable entry point:

a fixed IP (ClusterIP)
a DNS name

So clients just call:

👉 user-service

Not individual Pods.

Behind the scenes Service finds matching Pods via labels traffic is routed to one of them, dead Pods are automatically removed, new Pods are automatically added

No manual updates.

So the transformation is:

❌ Before: Call fragile Pod IPs that keep changing

✅ After: Call a stable Service that tracks Pods dynamically

If you remember one thing:

Kubernetes doesn’t make Pods stable. It makes access to Pods stable.

That’s the real purpose of a Service. Not just load balancing. But solving the “changing IP” problem elegantly.

[Akhilesh Mishra @livingdevops]

DevOps job requirements change every 5 years.
👉 2010: Linux + networking + scripting → get a job
👉 2015: Linux + networking + cloud basics → get a job
👉 2020: Linux + Docker + Kubernetes + CI/CD → get a job
👉 2026: Linux + Docker + Kubernetes + CI/CD +
- AWS / Azure / GCP
- Terraform
- Python
- GitOps (ArgoCD / Flux)
- Observability (Prometheus + Grafana + Loki)
- Cost optimization
- AI/ML workload support
- Platform engineering mindset
- Security basics (IAM, secrets, scanning)
- Communication skills
- 3-5 years of experience

A few years back, "entry-level DevOps" meant you were allowed to be new.

Now it means cloud + infra + automation + observability + security before your first real job.

Here is what actually changed at each stage.

2010 → 2015
Cloud arrived. AWS was no longer optional. Bash scripts were not enough anymore. You had to provision infra, not just SSH into servers and fix things.

2015 → 2020
Containers changed everything. Docker came. Then Kubernetes came. Then CI/CD stopped being a nice-to-have and became the actual job. The pipeline became the product.

2020 → 2026
AI entered the stack. DevOps engineers are now expected to support ML pipelines, LLM deployments, and GPU workloads alongside the regular infra work.

Platform engineering replaced the "ops person who fixes things." Security shifted left, straight into your pipeline, your Helm chart, your IAM policy.

The 2026 DevOps engineer needs to know a bit of everything.

If you are trying to break in and you feel behind, you are not behind.
Entry-level just quietly became mid-level.

The only way through is focus.

>> Pick one cloud. Go deep.
>> Learn Kubernetes properly, not just kubectl.
>> Build real pipelines, not toy projects.
>> Add observability to everything you build.
>> Learn enough AI infrastructure to not be scared of it.

You do not need to learn everything at once. But you do need to stop learning randomly.

The engineers winning right now are not the ones who know the most tools.
They are the ones who understand systems deeply and know how to debug when something breaks

[Enisco @enisco]

Authentication & Authorization (OAuth, JWT, Sessions)

What is Authentication?

Authentication is the process of verifying the identity of a user or system. It ensures that the person or application trying to access a system is who they claim to be.
→ Example: Logging in with a username and password.

What is Authorization?

Authorization determines what an authenticated user is allowed to do within a system. It defines permissions and access levels.
→ Example: A normal user can view content, while an admin can add or delete content.

OAuth (Open Authorization)

→ A standard protocol for token-based authentication and authorization.
→ Allows users to log in using third-party providers like Google, Facebook, or GitHub.
→ Example: "Log in with Google" button on websites.

JWT (JSON Web Token)

→ A compact, secure token format used for authentication.
→ Contains encoded user information and is signed to ensure integrity.
→ Commonly used in stateless authentication, where the server doesn’t store session data.
→ Example: After logging in, the server issues a JWT that the client sends with every request.

Sessions

→ A method where the server stores user authentication data temporarily.
→ A session ID is stored in the client’s browser (cookie) and mapped to server-side data.
→ Example: Traditional web apps where a user stays logged in until the session expires or they log out.

Key Differences

→ OAuth: Delegates authentication to external providers.
→ JWT: Stateless authentication with tokens stored on the client.
→ Sessions: Stateful authentication with data stored on the server.

Real-World Examples

→ OAuth: Logging into Spotify using Facebook or Google.
→ JWT: APIs where clients authenticate using tokens.
→ Sessions: Classic PHP or Node.js web apps with login systems.

[Ada Lluch @AdaLluch]

At least we know he will spend eternity in Heaven. 💔

[Dhruv Rathee @dhruv_rathee]

Dr. Manmohan Singh (1932 - 2024) 💔

He made India the fastest growing economy, gave us Right to Education Act, Right to Information Act, secured the nuclear deal and ensured free and independent media.

He was also the last Indian prime minister to give a press conference in 2014

[Evan Luthra @EvanLuthra]

#RatanTata is the World's Biggest Donor.

He has donated ₹829,734 crore.

Built multiple free hospitals, schools & saved millions of lives.

Today, on his death, the whole world is crying.

Some unheard instances of Mr. Tata that will make you cry: 🧵

[Veena Jain @Vtxt21]

Breaking!🚨

> The lab report which is going viral is report of rejected Ghee
> No adulterated Ghee is used in Tirupati Laddu
> Chandrababu Naidu & Pawan Kalyan claims are misleading
> Naidu & Pawan Kalyan using religion to do politics

Note : She is Palki Sharma, Pro BJP Journalist. But now for them also it's becoming difficult to hide facts 🙌

Shame on Pawan Kalyan & Naidu. They should openly apologize for this 😡

[Sanjai Gandhi @SanjaiGandhi]

Annapoorna brand is one of the identities of Coimbatore. Its owner requested a simplified GST for food items. This went viral. Today @nsitharaman made him to apologize for his demand. This is fascism and arrogance. @narendramodi @RahulGandhi @SupriyaShrinate @Pawankhera

[Andrew SamRaja Pandian @andrewsam]

1) So BJP called Coimbatore business leaders and associations for a meeting to listen to their woes.

2) One of the leading businessmen in Coimbatore running an iconic restaurant synonymous with Kovai explains his woes in a typically Kovai style.

3) A day later, he’s seen apologising for raising his concerns and BJP folks release the video of the same (this is the telling part).

There is bad and there is nauseatingly embarrassingly bad.. this just shows their calibre. BJP has to #ApologiseToKovai for this.

[அர்ஜுன் தமிழீழவன் (Arjun) @___Arjun___04]

தனி ஒரு மனிதனால் முடியும் என்றால் அப்ப அரசாங்கம் என்னயா பன்னுது…👌❤️

[David Nithil @rockynithil]

@MicrosoftHelps Hi, could you pls provide a permanent fix regarding Perf issues in 2019 OS after KB5041578 Aug patching ASAP.. It's a global issue.

[Anand Srinivasan @anand_srini]

அமெரிக்காவைச் சேர்ந்த ஹிண்டன்பர்க் ரிசர்ச் இந்தியாவின் பங்குச்சந்தை ஒழுங்காற்று ஆணையமான செபி மீது பரபரப்பு குற்றச்சாட்டுகளை வைத்துள்ளது. செபியின் தலைவர் மாதபி பூரி புச் அதானிக்கு சொந்தமான வெளிநாட்டு பங்குகளில் பணம் முதலீடு செய்துள்ளார்.

தற்போதைய செபி தலைவர் திதுமதி.மாதபி புரி புச் அவர்களின் கணவர் தவால் புச்சும், வினோத் அதானி வைத்துள்ள அதே பெர்முடா மற்றும் மொரீஷியஸ் நாட்டு பங்குச்சந்தை பங்குகளில் முதலீடு செய்துள்ளனர். அதானியின் பங்குகளில் இவர்கள் அதிக அளவில் முதலீடுகளை செய்துள்ளனர். அதானிக்கு சரிவு ஏற்பட்டால் தங்களுக்கும் சரிவு ஏற்படும் என்று செபி அவர் மீது நடவடிக்கை எடுக்காமல் உள்ளது என்று இதில் குற்றச்சாட்டு வைக்கப்பட்டு உள்ளது. மதப் புச் மற்றும் அவரது கணவர் தவல் புச் ஆகியோர் முதலில் சிங்கப்பூரில் ஜூன் 5, 2015 அன்று ஐபிஇ பிளஸ் ஃபண்ட் 1 இல் தங்கள் கணக்கை தொடங்கி உள்ளனர். எங்களுக்கு கிடைத்த விசில்ப்ளோவர் ஆவணங்கள் மூலம் அந்த தம்பதியரின் நிகர மதிப்பு $10 மில்லியன் என மதிப்பிடப்பட்டுள்ளது.அதாவது தோராயமாக இந்திய ரூபாய் மதிப்பு 56 கோடி. இதே பங்குகளில் அதானி குழுமமும் முதலீடுகளை செய்துள்ளது. செபி தலைவரும் அவரது கணவர் தவால் புச்சும், வினோத் அதானி பயன்படுத்திய அதே பெர்முடா மற்றும் மொரீஷியஸ் நாட்டு பங்குச்சந்தை பங்குகளில் முதலீடு செய்துள்ளனர், என்று பரபரப்பு குற்றச்சாட்டுகளை செபி மீது ஹிண்டன்பர்க் வைத்துள்ளது.
பின்னணி: “ஐபிஇ பிளஸ் ஃபண்ட்” என்பது வயர்கார்ட் ஊழலுடன் தொடர்புடைய செல்வ மேலாண்மை நிறுவனமான இந்தியா இன்ஃபோலைன் (ஐஐஎஃப்எல்) மூலம் அதானி இயக்குனரால் அமைக்கப்பட்ட ஒரு சிறிய ஆஃப்ஷோர் மொரீஷியஸ் நிதியாகும்.

வினோத் அதானி - கெளதம் அதானியின் சகோதரர் - அதானி குழுமத்திற்கு மின் உபகரணங்களை அதிக விலைக்கு விற்று அந்த லாபத்தை இந்திய சந்தைகளில் முதலீடு செய்ய இந்தக் கட்டமைப்பைப் பயன்படுத்தினார்.
மாதபி புச் செபியில் முழு நேர உறுப்பினராக இருந்த காலத்தில், அவரது கணவர் 2019 இல் பிளாக்ஸ்டோனுக்கு மூத்த ஆலோசகராக நியமிக்கப்பட்டார்.
அவரது LinkedIn சுயவிவரத்தின்படி, அவர் இதற்கு முன், ரியல் எஸ்டேட் அல்லது மூலதனச் சந்தைகளிலோ எந்த முன் அனுபவமோ இருந்ததில்லை.
பிளாக்ஸ்டோன் நிறுவனம் இந்தியாவில் ஒரு புதிய சொத்து வகுப்பான REITS இன் மிகப்பெரிய முதலீட்டாளர்கள் மற்றும் ஸ்பான்சர்களில் ஒருவர்

தவல் புச் மூத்த ஆலோசகராக இருந்த காலத்தில், அவரது மனைவி செபி அதிகாரியாக இருந்தபோது, பிளாக்ஸ்டோன் ஸ்பான்சர் மைண்ட்ஸ்பேஸ் மற்றும் நெக்ஸஸ் டிரஸ்ட், ஐபிஓவுக்கு செபி அனுமதியைப் பெறுவதற்கு இத்திரு இந்தியாவின் இரண்டாவது மற்றும் நான்காவது REIT ஆனது.

தவல் புச் பிளாக்ஸ்டோனுக்கு ஆலோசகராக இருந்த காலத்தில், SEBI முக்கிய REIT விதிமுறைகளில் மாற்றங்களை முன்மொழிந்து, அங்கீகரித்து, எளிதாக்கியது.
இதில் 7 ஆலோசனைத் தாள்கள், 3 ஒருங்கிணைந்த புதுப்பிப்புகள், 2 புதிய ஒழுங்குமுறை கட்டமைப்புகள் மற்றும் யூனிட்களுக்கான நியமன உரிமைகள், குறிப்பாக பிளாக்ஸ்டோன் போன்ற தனியார் ஈக்விட்டி நிறுவனங்களுக்கு பயனளிக்கும் வகையில் இருந்தது.
தொழில்துறை மாநாடுகளின் போது, SEBI தலைவரான மாதபி புச், REITகளை தனது "எதிர்காலத்திற்கான விருப்பமான ப்ராடெக்ட்" எனக் கூறி, முதலீட்டாளர்கள் சொத்து வகுப்பை "நேர்மறையாக" பார்க்குமாறு வலியுறுத்தினார்.அந்த அறிக்கைகளை வெளியிடும் போது, அவர் இந்த திட்டத்தில் இருந்து பிளாக் ஸ்டோன் நிறுவனம் மிகவும் பயனடையும் என்பதை குறிப்பிடவில்லை.
மாதபி புச் தற்போது அகோரா அட்வைசரி எனப்படும் இந்திய ஆலோசனை நிறுவனத்தில் 99% பங்குகளை வைத்துள்ளார், அங்கு அவரது கணவர் இயக்குநராக உள்ளார். 2022 ஆம் ஆண்டில், இந்த நிறுவனம் அவருக்கு $261,000 வருவாயை ஆலோசனை வழங்கியதற்கு கொடுத்துள்ளது. இது அவர் செபியில் வாங்கிய சம்பளத்தை விட 4:4 அதிகம். மாதபி புச், அதன் பங்குதாரர் பட்டியல் மற்றும் கார்ப்பரேட் பதிவுகளின்படி, தனது கணவர் தவால் புச்சுடன் ஒரு இயக்குநராக வணிகத்தின் 99% உரிமையாளராக இருக்கிறார்.
இதை ஹிண்டன்பெர்க் வெளியிட்டுள்ளது.

இத்தனை கேள்விக்கும் இவர்கள் என்ன பதில் சொல்லப்போகிறார்கள் என்று பார்ப்போம்.

[Chinmayi Sripaada @Chinmayi]

Vinesh having to go through this entire horror show was because of the Federation which wouldn't let her participate in the category she could manage.

India would have had Gold today if not for the system, which seemed like it did NOT want her to succeed.

Nobody else would sabotage their own like we do.

[Zach Vorhies / Google Whistleblower @Perpetualmaniac]

Crowdstrike Analysis:

It was a NULL pointer from the memory unsafe C++ language.

Since I am a professional C++ programmer, let me decode this stack trace dump for you.

[Saurabh Koratkar @saurabhkoratkar]

This is not just an accident in Kalyani Nagar, Pune. It's a murder committed by:

- Corrupt police
- Corrupt system
- Corrupt administration
- Corrupt politicians
- Corrupt businessmen
- Corrupt excise department
- Corrupt showroom owner who delivered the car without registration.

If:
- The pub had closed as per the rules,
-if The pub had not served alcohol to minors as per the rules,
-if The showroom had not delivered the car without registration as per the rules,
- if Parents had not allowed their minor child to drive the car as per the rules,
- if Traffic police had acted on the car,

then these two young lives would not have been lost on road. Might have been spared.

Ordinarily traffic police are quick to penalize us for minor infraction they aggressively fine us for not wearing helmets, not carrying licenses, or PUc certificates. So, why didn't they take action on a flashy car without a number plate speeding on a deserted road at night?

Moreover, when the police arrest the culprit who destroyed two families, they provide him with biryani, pizza, and burgers behind closed doors. The shameless, wealthy brat eats without any guilt for taking two lives.

Does the court work on holidays to deliver justice or to save the accused from punishment? In just a few hours, bail is granted as if presenting a NAZRANA. This is the sentiment.

Two lives were lost, and the court granted bail on a Sunday as if awarding a prize, with conditions like:
- Writing a 300-word essay,
- Taking advice from a psychiatrist,
- Learning traffic rules for 15 days.

More punishment is given in schools. Here, two youngsters died.

-For driving without a license, the penalty is three months imprisonment.
-For underage driving, the penalty is three months imprisonment.
-For drunk driving, the penalty is six months imprisonment.
-For overspeeding, the penalty is one month imprisonment.

Even for traveling without a ticket on a train, the punishment is six months. But for killing 2 youngsters Yet here, bail is granted in 15 hours. Astonishing.

The height of shamelessness is that a legislator comes forward to save the accused and tries to cover up the case. According to Pune Mirror/Punekar News, Vadgaon Sheri MLA Sunil Tingre is the one who tried to fabricate that the accused was not driving, but the eyewitnesses rejected this. If true, such individuals should be expelled from their party.

I don't know the deceased, but this could happen to you or me tomorrow. So, we must speak up. At least, we should stand tall before this hardened system.

The Pune Police Commissioner has taken serious note of the immediate bail granted. Home Minister Devendra Fadnavis has also directed the administration to take strict action against the accused and ordered an investigation into the CCTV footage at the police station. We hope for action and justice!

[Dhruv Rathee @dhruv_rathee]

This is a newspaper in Australia

Modi is bringing down the reputation of our whole country.