Understanding IPv6 Neighbor Discovery Protocol (NDP)

Overview In IPv6 networks, Neighbor Discovery Protocol (NDP) is a core protocol that manages interactions between network devices. It integrates several IPv4 protocol functions such as ARP and ICMP Router Discovery, enabling more efficient network management. Key Features Multicast-based communication reduces network load Automated address configuration improves management efficiency Enhanced security features support secure network operations 1. Core Functions of Neighbor Discovery Neighbor Node Discovery Automatically finds and verifies MAC addresses of other devices in IPv6 networks. This completely replaces ARP functionality from IPv4. ...

February 24, 2025 · 3 min · 555 words · In-Jun Hwang

How to Install Wine on Ubuntu 24.04 LTS

What is Wine? Wine (Wine Is Not an Emulator) lets you run Windows programs on Linux systems like Ubuntu 24.04 LTS. Rather than being a typical emulator, Wine works by translating Windows commands directly into ones your Linux system can understand. This means better performance than you’d get with traditional virtualization. Main Benefits Runs without a virtual machine, keeping things fast and simple Plays your favorite Windows games through DirectX support Works with everyday Windows software like Microsoft Office 1. Getting Your System Ready Let’s start by updating your system: ...

February 23, 2025 · 2 min · 255 words · In-Jun Hwang

Understanding Linux Logical Volume Manager (LVM)

In Linux systems, storage management is one of the most critical tasks for system administrators. The Logical Volume Manager (LVM) provides flexible storage management by abstracting physical disks into logical units. LVM’s Basic Structure LVM consists of three key layers: Physical Volume An actual disk or partition that has been initialized to be used by LVM. This can be a physical storage device like /dev/sda1, /dev/sdb. Volume Group A collection of physical volumes that are combined into a single storage pool. At this stage, the boundaries of the physical disks are removed, presenting one large storage space. ...

February 21, 2025 · 2 min · 291 words · In-Jun Hwang

Understand How the ARP Protocol Works

ARP(Address Resolution Protocol) is a protocol that finds the MAC address corresponding to an IP address. When communication occurs between devices on a network, it is necessary to find out the MAC address to deliver the packet to the destination. The Role of ARP Convert IP addresses to MAC addresses Identify devices that can communicate directly within the network Optimize performance through ARP caching Detect duplicate IP conflicts (using Gratuitous ARP) ARP Operation Process 1. ARP Request (ARP Request) When a host knows the destination IP address but not the MAC address, it broadcasts an ARP request to the network. ...

February 20, 2025 · 2 min · 420 words · In-Jun Hwang

Understanding the Mechanics and Structure of DNS

DNS (Domain Name System) is a system that translates domain names into IP addresses on the Internet. When a user tries to access a website by typing in its domain name, DNS translates it into the IP address of the corresponding server and facilitates the connection. Role of DNS Translate domain names to IP addresses Translate IP addresses to domain names (reverse lookup) Provide mail server information (MX records) Map multiple IPs for load balancing DNS Resolution Process DNS operates in a hierarchical structure and goes through the following steps: ...

February 20, 2025 · 3 min · 470 words · In-Jun Hwang