🧩
VPC & Networking

Public vs Private Subnets

Subdividing the VPC
💡 Public, subnet, EK, "STOREFRONT" jaisi, hai, (INTERNET, se, direct, access), Private, subnet, EK, "BACK, OFFICE" jaisa, hai, (sirf, ANDAR, se, hi, ACCESS, hota hai, koi, DIRECT, INTERNET, entry, nahi).

EK, Subnet, "PUBLIC" TAB, kehlaata, hai, JAB, USKI, Route, Table, mein, EK, ROUTE, ho, JO, "0.0.0.0/0" traffic, ko, EK, Internet, Gateway, (IGW) ki, TARAF, BHEJTA, ho — WEB, servers, YAHAN, RAKHE, jaate, HAIN.

Private, Subnets, mein, INTERNET, GATEWAY, ka, DIRECT, ROUTE, NAHI, hota — DATABASES, aur, INTERNAL, APIs, jaise, RESOURCES, YAHAN, RAKHE, jaate, HAIN.

aws ec2 create-subnet --vpc-id vpc-12345 --cidr-block 10.0.2.0/24 --availability-zone ap-south-1b
🧩
Public, subnet, EK, "STOREFRONT" jaisi, hai, (INTERNET, se, direct, access), Private, subnet, EK, "BACK, OFFICE" jaisa, hai, (sirf, ANDAR, se, hi, ACCESS, hota hai, koi, DIRECT, INTERNET, entry, nahi).
1 / 2
⚡ झट से Recap
  • Public subnet = route table mein IGW ka route hota hai
  • Private subnet = koi direct internet route nahi
  • Web servers public mein, databases private mein rakhe jaate hain
इस page में (2 subtopics)

EK, Subnet, "PUBLIC" TAB, kehlaata, hai, JAB, USKI, Route, Table, mein, EK, ROUTE, ho, JO, "0.0.0.0/0" traffic, ko, EK, Internet, Gateway, (IGW) ki, TARAF, BHEJTA, ho — WEB, servers, jinhe, INTERNET, se, DIRECTLY, ACCESS, hona, hai, YAHAN, RAKHE, jaate, HAIN.

💡Tip: Public, subnet, mein, hone, ka, MATLAB, YE, NAHI, ki, EC2, instance, AUTOMATICALLY, PUBLIC, IP, PAA, jaayega — USE, EXPLICITLY, EK, PUBLIC, IP, ASSIGN, karna, PADTA, hai.

Private, Subnets, mein, INTERNET, GATEWAY, ka, DIRECT, ROUTE, NAHI, hota — DATABASES, aur, INTERNAL, APIs, jaise, RESOURCES, YAHAN, RAKHE, jaate, HAIN, JINHE, DIRECT, INTERNET, ACCESS, ki, ZAROORAT, NAHI.

aws ec2 create-subnet --vpc-id vpc-12345 --cidr-block 10.0.2.0/24 --availability-zone ap-south-1b