Track
Networking
From the TCP handshake to the TLS one, and everything a request touches.
- 01
What is DNS Resolution
DNS resolution is like asking a chain of librarians for a book's shelf number: you ask your local desk, they ask a floor supervisor, who asks the head archivist, until someone knows the exact location.
- 02
What is CIDR
CIDR (Classless Inter-Domain Routing) is a way to describe a block of IP addresses as one address plus a prefix length — like saying 'the first 24 bits are fixed, the rest are yours to use'.