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😇Aniq bilaman bu narsa haqida siz umuman o'ylab ko'rmagansiz.

Hammamiz ishda domen controller (AD) ishlatamiz. Login parol terib ishlab ketaveramiz. Lekin shu login parol terilgandan keyin nimalar bo'lishini chuqurroq o'ylab ham ko'rmagan bo'lsak kerak.

Keling shu jarayonga sho'ng'iymiz:

🔐 Kerberos: TGT va TGS nimaga kerak?

Aytaylik, siz katta kompaniyada ishlaysiz. Har kuni ofisga kirish, printerdan foydalanish, serverga ulanish kerak. Har safar parol kiritish zerikarli emasmi?
Mana shu muammoni Kerberos yechadi! U sizga faqat *1 marta parol kiritishga* ruxsat beradi, qolgan hamma narsa avtomatik. Qanday qilib? Keling, tushuntiraman!

---

1. TGT (Asosiy пропуск) 🎟
- Nima? TGT — bu sizning "asosiy пропуск"ingiz. Ofisga kirishda qo'riqchi (KDC) sizni tanib oladi va *TGT* beradi.
- Qachon? Kompyuterga birinchi marta kirganingizda.
- Nima qiladi? Ushbu пропуск orqali boshqa xonalarga (servislarga) kirish uchun maxsus ruxsatnomalar olishingiz mumkin.

---

2. TGS (Maxsus ruxsatnoma) 🎫
- Nima? TGS — printer, server yoki boshqa xonalarga kirish uchun kerak bo'ladigan *maxsus ruxsatnoma*.
- Qanday? Agar siz printerdan foydalanmoqchi bo'lsangiz, KDC (qo'riqchi) ga *TGT* ni ko'rsatasiz. U sizga faqat printer uchun *TGS* beradi.
- Afzalligi? Har bir TGS faqat bitta narsa uchun! Agar haker printer ruxsatnomasini o'g'irlasa, serverga kira olmaydi.

---

Kerberos qanday ishlaydi? 🛠
1. Kirish: Ofisga kirishda TGT olasiz (1-marta parol kiritish).
2. Ruxsat so'rash: Printer kerak? TGT ni ko'rsating → Printer uchun TGS oling.
3. Foydalanish: TGS ni printerga ko'rsating → Sizga ruxsat beriladi!

---

Nega kerak? 💡
- Xavfsizlik: Har bir xona (servis) uchun alohida kalit (TGS).
- Qulaylik: Faqat 1 marta parol kiritish yetarli!
- Tezkorlik: Har safar parol yozish shart emas.

---

Hayotiy misol 🏢
1. Ofisga kirish: TGT olish = Eshikdan o'tish.
2. Kofe apparatiga kirish: TGT → KDC → "Kofe apparati uchun TGS" olish.
3. Meeting xonasiga kirish: Yana TGT → "Meeting xonasi uchun TGS".

Xulosa: Kerberos — bu sizning ofisdagi aqlli qo'riqchizingiz! U sizga faqat *1 ta asosiy пропуск* beradi, qolgan hamma narsa avtomatik 🚀

📢 Eslatma: Agar TGT yo'qolsa, ofisga qayta kirish kerak (parolni yana kiritish). Shuning uchun uni himoya qiling!

O'zbekonaCisco Biz sizga eng yaxshilarini ravo ko'ramiz.
@cisco_server
@uzbekona_cisco
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😇Aniq bilaman bu narsa haqida siz umuman o'ylab ko'rmagansiz.

Hammamiz ishda domen controller (AD) ishlatamiz. Login parol terib ishlab ketaveramiz. Lekin shu login parol terilgandan keyin nimalar bo'lishini chuqurroq o'ylab ham ko'rmagan bo'lsak kerak.

Keling shu jarayonga sho'ng'iymiz:

🔐 Kerberos: TGT va TGS nimaga kerak?

Aytaylik, siz katta kompaniyada ishlaysiz. Har kuni ofisga kirish, printerdan foydalanish, serverga ulanish kerak. Har safar parol kiritish zerikarli emasmi?
Mana shu muammoni Kerberos yechadi! U sizga faqat *1 marta parol kiritishga* ruxsat beradi, qolgan hamma narsa avtomatik. Qanday qilib? Keling, tushuntiraman!

---

1. TGT (Asosiy пропуск) 🎟
- Nima? TGT — bu sizning "asosiy пропуск"ingiz. Ofisga kirishda qo'riqchi (KDC) sizni tanib oladi va *TGT* beradi.
- Qachon? Kompyuterga birinchi marta kirganingizda.
- Nima qiladi? Ushbu пропуск orqali boshqa xonalarga (servislarga) kirish uchun maxsus ruxsatnomalar olishingiz mumkin.

---

2. TGS (Maxsus ruxsatnoma) 🎫
- Nima? TGS — printer, server yoki boshqa xonalarga kirish uchun kerak bo'ladigan *maxsus ruxsatnoma*.
- Qanday? Agar siz printerdan foydalanmoqchi bo'lsangiz, KDC (qo'riqchi) ga *TGT* ni ko'rsatasiz. U sizga faqat printer uchun *TGS* beradi.
- Afzalligi? Har bir TGS faqat bitta narsa uchun! Agar haker printer ruxsatnomasini o'g'irlasa, serverga kira olmaydi.

---

Kerberos qanday ishlaydi? 🛠
1. Kirish: Ofisga kirishda TGT olasiz (1-marta parol kiritish).
2. Ruxsat so'rash: Printer kerak? TGT ni ko'rsating → Printer uchun TGS oling.
3. Foydalanish: TGS ni printerga ko'rsating → Sizga ruxsat beriladi!

---

Nega kerak? 💡
- Xavfsizlik: Har bir xona (servis) uchun alohida kalit (TGS).
- Qulaylik: Faqat 1 marta parol kiritish yetarli!
- Tezkorlik: Har safar parol yozish shart emas.

---

Hayotiy misol 🏢
1. Ofisga kirish: TGT olish = Eshikdan o'tish.
2. Kofe apparatiga kirish: TGT → KDC → "Kofe apparati uchun TGS" olish.
3. Meeting xonasiga kirish: Yana TGT → "Meeting xonasi uchun TGS".

Xulosa: Kerberos — bu sizning ofisdagi aqlli qo'riqchizingiz! U sizga faqat *1 ta asosiy пропуск* beradi, qolgan hamma narsa avtomatik 🚀

📢 Eslatma: Agar TGT yo'qolsa, ofisga qayta kirish kerak (parolni yana kiritish). Shuning uchun uni himoya qiling!

O'zbekonaCisco Biz sizga eng yaxshilarini ravo ko'ramiz.
@cisco_server
@uzbekona_cisco

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How to Buy Bitcoin?

Most people buy Bitcoin via exchanges, such as Coinbase. Exchanges allow you to buy, sell and hold cryptocurrency, and setting up an account is similar to opening a brokerage account—you’ll need to verify your identity and provide some kind of funding source, such as a bank account or debit card. Major exchanges include Coinbase, Kraken, and Gemini. You can also buy Bitcoin at a broker like Robinhood. Regardless of where you buy your Bitcoin, you’ll need a digital wallet in which to store it. This might be what’s called a hot wallet or a cold wallet. A hot wallet (also called an online wallet) is stored by an exchange or a provider in the cloud. Providers of online wallets include Exodus, Electrum and Mycelium. A cold wallet (or mobile wallet) is an offline device used to store Bitcoin and is not connected to the Internet. Some mobile wallet options include Trezor and Ledger.

Should I buy bitcoin?

“To the extent it is used I fear it’s often for illicit finance. It’s an extremely inefficient way of conducting transactions, and the amount of energy that’s consumed in processing those transactions is staggering,” the former Fed chairwoman said. Yellen’s comments have been cited as a reason for bitcoin’s recent losses. However, Yellen’s assessment of bitcoin as a inefficient medium of exchange is an important point and one that has already been raised in the past by bitcoin bulls. Using a volatile asset in exchange for goods and services makes little sense if the asset can tumble 10% in a day, or surge 80% over the course of a two months as bitcoin has done in 2021, critics argue. To put a finer point on it, over the past 12 months bitcoin has registered 8 corrections, defined as a decline from a recent peak of at least 10% but not more than 20%, and two bear markets, which are defined as falls of 20% or more, according to Dow Jones Market Data.

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