Author name: Kajal Patil

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IP Addressing and Subnetting: A Quick Guide

What is an IP Address? Understand the fundamentals of IP addressing and subnetting, including network segmentation, subnet masks, and efficient IP allocation for better connectivity and security. An IP (Internet Protocol) Address is a unique identifier assigned to each device in a network for communication. IPv4 (32-bit): Example – 192.168.1.1 IPv6 (128-bit): Example – 2001:0db8:85a3:0000:0000:8a2e:0370:7334

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Do Virtual Machine Require Network Security?

1. Enable Firewall Protection Use UFW (Ubuntu) or Firewalld (CentOS/AlmaLinux) to control access. Example Login server (Ubuntu) Sudo ufw status sudo ufw enable sudo ufw allow 22/tcp                  # Allow SSH sudo ufw allow 80/tcp                 # Allow HTTP  sudo ufw deny 3306              # Block MySQL from public access sudo ufw reload sudo ufw status Example (CentOS/AlmaLinux):

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