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Naval Kishor Upadhyay

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Location Vienna, Austria Joined Joined on 
Why IPv4 Ran Out of Addresses and How NAT Saved the Internet

Why IPv4 Ran Out of Addresses and How NAT Saved the Internet

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5 min read
# The TCP 3-Way Handshake: How Connections Begin Their Life

# The TCP 3-Way Handshake: How Connections Begin Their Life

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4 min read
TCP vs UDP: Why Some Apps Want Reliability and Others Want Speed

TCP vs UDP: Why Some Apps Want Reliability and Others Want Speed

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3 min read
Why Layer 3 Isn’t Enough: Reliability Problems and the Rise of TCP/UDP

Why Layer 3 Isn’t Enough: Reliability Problems and the Rise of TCP/UDP

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3 min read
ARP Explained: The Translator Between IP and MAC

ARP Explained: The Translator Between IP and MAC

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2 min read
Subnet Masks Made Simple: How Networks Identify Who’s “Local”

Subnet Masks Made Simple: How Networks Identify Who’s “Local”

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3 min read
Routers and Route Tables: The GPS of the Internet

Routers and Route Tables: The GPS of the Internet

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3 min read
The Hidden Role of Switches: How MAC Address Tables Actually Work

The Hidden Role of Switches: How MAC Address Tables Actually Work

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3 min read
How Data Really Travels Across the Internet

How Data Really Travels Across the Internet

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4 min read
Networking Basics: Clients, Servers, Switches, Routers, and Firewalls

Networking Basics: Clients, Servers, Switches, Routers, and Firewalls

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2 min read
YUM vs RPM: Understanding Package Management in Linux

YUM vs RPM: Understanding Package Management in Linux

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2 min read
Systemd Demystified: Managing Services in Modern Linux

Systemd Demystified: Managing Services in Modern Linux

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4 min read
Beyond the 12 Factors: Portability

Beyond the 12 Factors: Portability

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1 min read
12-Factor App Principle #12: Admin Processes

12-Factor App Principle #12: Admin Processes

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1 min read
12-Factor App Principle #11: Logs

12-Factor App Principle #11: Logs

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1 min read
12-Factor App Principle #10: Dev/Prod Parity

12-Factor App Principle #10: Dev/Prod Parity

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1 min read
12-Factor App Principle #9: Disposability

12-Factor App Principle #9: Disposability

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1 min read
12-Factor App Principle #8: Concurrency

12-Factor App Principle #8: Concurrency

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1 min read
12-Factor App Principle #7: Port Binding

12-Factor App Principle #7: Port Binding

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1 min read
12-Factor App Principle #6: Processes

12-Factor App Principle #6: Processes

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1 min read
12-Factor App Principle #5: Build, Release, Run

12-Factor App Principle #5: Build, Release, Run

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2 min read
12-Factor App Principle #4: Backing Services

12-Factor App Principle #4: Backing Services

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1 min read
12-Factor App Principle #3: Config

12-Factor App Principle #3: Config

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1 min read
12-Factor App Principle #2: Dependencies

12-Factor App Principle #2: Dependencies

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2 min read
12-Factor App Principle #1: Codebase

12-Factor App Principle #1: Codebase

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2 min read
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