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Open Source Linux
Open Source Linux
Nov 30, 2021 · Operations

Essential Sysadmin Toolkit: LDAP, Automation, DNS, Load Testing & Security

This guide surveys a range of open‑source tools for unified account management, automated server deployment, DNS services, performance testing, and host security, including LDAP, JumpServer, NIS, Fabric, Ansible, dnsmasq, pdnsd, ApacheBench, TCPcopy, PortSentry, fail2ban, and Google Authenticator, helping administrators streamline operations across Linux environments.

DNSLDAPLoad Testing
0 likes · 7 min read
Essential Sysadmin Toolkit: LDAP, Automation, DNS, Load Testing & Security
Open Source Linux
Open Source Linux
Nov 21, 2021 · Fundamentals

How DNS Translates Domain Names to IP Addresses: A Complete Guide

This article explains the fundamentals of DNS, covering its role as a translator between domain names and IP addresses, the hierarchical structure of domains, query methods, caching mechanisms, step‑by‑step resolution process, and common DNS resource record types.

DNSDomain Name SystemInternet fundamentals
0 likes · 12 min read
How DNS Translates Domain Names to IP Addresses: A Complete Guide
Open Source Linux
Open Source Linux
Nov 11, 2021 · Fundamentals

Master DNS: Basics, Docker Setup, and Real-World Troubleshooting

This guide explains DNS fundamentals, shows how to set up a Docker container for testing, demonstrates configuring and modifying DNS settings, and walks through common DNS issues such as missing resolvers, slow queries, hosts file overrides, and unstable reverse lookups, with practical command‑line examples.

DNSDockerLinux
0 likes · 15 min read
Master DNS: Basics, Docker Setup, and Real-World Troubleshooting
Liangxu Linux
Liangxu Linux
Nov 11, 2021 · Fundamentals

How Do URLs Turn Into IP Addresses? A Deep Dive into DNS and Domain Names

This article explains the relationship between URLs, IP addresses, and domain names, detailing how the DNS system resolves human‑readable addresses to numeric IPs, the structure of URLs, the history and hierarchy of DNS, and the step‑by‑step process of domain name resolution.

DNSDomain NameIP address
0 likes · 12 min read
How Do URLs Turn Into IP Addresses? A Deep Dive into DNS and Domain Names
Ops Development Stories
Ops Development Stories
Nov 3, 2021 · Operations

Deploy BIND9 with chroot, ACL, and Views on CentOS 8

This guide walks through setting up BIND9 in a chroot environment, configuring ACLs and views for intelligent DNS routing, creating master and slave zones, and testing resolution on CentOS 8, providing a practical solution for secure and segmented DNS services.

ACLCentOSDNS
0 likes · 17 min read
Deploy BIND9 with chroot, ACL, and Views on CentOS 8
IT Architects Alliance
IT Architects Alliance
Oct 28, 2021 · Cloud Native

Kubernetes Service Discovery: Fundamentals and Deep Dive

This article explains Kubernetes service discovery by first covering the underlying pod network concepts, then detailing how Services provide stable endpoints, how they register with cluster DNS, the role of Endpoints and kube-proxy, and the iptables/IPVS mechanisms that route traffic to pods.

DNSEndpointsNetworking
0 likes · 11 min read
Kubernetes Service Discovery: Fundamentals and Deep Dive
ByteDance Web Infra
ByteDance Web Infra
Oct 13, 2021 · Operations

DNS Resolution Failure for goofy.app in Singapore Office Caused by DNSSEC Misconfiguration

An internal investigation revealed that the goofy.app domain could not be resolved from Singapore offices because a misconfigured DNSSEC DS record caused validation failures, while Chinese DNS resolvers ignored DNSSEC, leading to successful resolution there; removing the erroneous DS key restored global accessibility.

DNSDNSSECDomain Resolution
0 likes · 10 min read
DNS Resolution Failure for goofy.app in Singapore Office Caused by DNSSEC Misconfiguration
Alibaba Cloud Native
Alibaba Cloud Native
Oct 10, 2021 · Cloud Native

How to Detect Service and Workload Anomalies in Kubernetes with Advanced Monitoring

This article explains the common pain points of locating anomalies in Kubernetes environments and presents a multi‑layer monitoring framework—trace, metrics, events, and alerts—along with best‑practice scenarios such as network performance, DNS issues, full‑link stress testing, external MySQL access, and multi‑tenant architectures.

DNSKubernetesMetrics
0 likes · 20 min read
How to Detect Service and Workload Anomalies in Kubernetes with Advanced Monitoring
21CTO
21CTO
Oct 6, 2021 · Operations

Why Did Facebook’s Global Outage Happen? Inside the BGP and DNS Failures

Facebook experienced a six‑hour worldwide outage that knocked out its main site and services like Instagram, WhatsApp, Messenger and Oculus, and engineers later traced the incident to a misconfigured backbone router that broke BGP routing and DNS resolution, sparking conspiracy rumors about data leaks.

BGPDNSFacebook
0 likes · 7 min read
Why Did Facebook’s Global Outage Happen? Inside the BGP and DNS Failures
Open Source Linux
Open Source Linux
Sep 23, 2021 · Information Security

Understanding TCP/IP Layers and Common Network Attacks: ARP, DoS, DNS

An in‑depth overview of network security threats reveals how attacks exploit vulnerabilities across TCP/IP layers—detailing ARP spoofing, DoS (including SYN flood), and DNS hijacking—and offers practical defense strategies such as packet analysis, firewall hardening, and proactive monitoring.

ARP AttackDNSDoS
0 likes · 10 min read
Understanding TCP/IP Layers and Common Network Attacks: ARP, DoS, DNS
Programmer DD
Programmer DD
Jul 22, 2021 · Fundamentals

Mastering DNS: From Basics to HTTPDNS and Global Load Balancing

This article explains the role of DNS in mobile network performance, details DNS hierarchy, authoritative, recursive and public DNS, explores common DNS problems such as ISP hijacking and caching, and introduces advanced solutions like GSLB, intelligent DNS, and HTTPDNS with practical command‑line examples.

DNSGSLBHTTPDNS
0 likes · 17 min read
Mastering DNS: From Basics to HTTPDNS and Global Load Balancing
Liangxu Linux
Liangxu Linux
Jul 13, 2021 · Fundamentals

How DNS Translates Domain Names to IP Addresses: A Complete Guide

This article explains why web browsers use domain names instead of IP addresses, how the DNS system automatically resolves those names through a hierarchical namespace, the roles of hosts files, root and authoritative servers, query types, transport protocols, and practical lookup examples.

DNSDomain Name SystemDomain hierarchy
0 likes · 19 min read
How DNS Translates Domain Names to IP Addresses: A Complete Guide
Open Source Linux
Open Source Linux
Jul 1, 2021 · Operations

Master DNS Configuration with BIND: Complete Step‑by‑Step Guide

This comprehensive tutorial explains DNS fundamentals, common record types, essential command‑line tools, BIND installation, zone file creation, master‑slave replication, reverse zones, sub‑domain delegation, forwarding, view‑based responses, and compiling BIND from source, providing a full roadmap for setting up reliable DNS services on Linux.

BINDDNSLinux
0 likes · 48 min read
Master DNS Configuration with BIND: Complete Step‑by‑Step Guide
Qunar Tech Salon
Qunar Tech Salon
Jun 24, 2021 · Operations

Qunar DNS System: Architecture, Features, and Operational Practices

This article explains the fundamentals and query process of the Domain Name System (DNS), then details Qunar's evolving DNS architecture—including the initial system, DNSDB management, DNS view, EDNS, HTTPDNS, and intelligent traffic switching—highlighting operational automation and security enhancements.

AutomationDNSSecurity
0 likes · 10 min read
Qunar DNS System: Architecture, Features, and Operational Practices
Top Architect
Top Architect
Jun 14, 2021 · Fundamentals

Understanding DNS: Architecture, Configuration, and Security

This article provides a comprehensive overview of the Domain Name System (DNS), covering its fundamentals, protocol choices, hierarchical structure, delegation, configuration with BIND, load balancing, debugging tools, and security considerations such as amplification attacks.

BINDDNSDomain Name System
0 likes · 17 min read
Understanding DNS: Architecture, Configuration, and Security
Beike Product & Technology
Beike Product & Technology
Jun 11, 2021 · Backend Development

Impact of System Load on libcurl DNS Resolution and HTTP Timeout

This article investigates how high system load affects libcurl's DNS resolution time and overall HTTP request latency, explains the three timeout error types returned by libcurl, presents experiments comparing host‑based, system‑host, and async‑ares resolution methods, and offers optimization recommendations.

BackendDNSTimeout
0 likes · 8 min read
Impact of System Load on libcurl DNS Resolution and HTTP Timeout
Architecture Digest
Architecture Digest
Jun 8, 2021 · Backend Development

Comprehensive Overview of Internet Company Technical Architecture: DNS, Load Balancing, API Gateway, Push, and Microservices

This article provides a detailed technical overview of an internet company's architecture, covering DNS resolution, load balancing strategies, API gateway design, push notification mechanisms, microservice communication, distributed transactions, and supporting infrastructure, offering a practical reference for developers.

DNSapi-gatewaypush notifications
0 likes · 15 min read
Comprehensive Overview of Internet Company Technical Architecture: DNS, Load Balancing, API Gateway, Push, and Microservices
IT Architects Alliance
IT Architects Alliance
Jun 2, 2021 · Backend Development

Scalable Architecture: DNS, Load Balancing, API Gateways & Microservices

This article outlines a comprehensive technical architecture for internet services, covering DNS resolution (including traditional and HttpDNS), load balancing strategies and algorithms, API gateway functions and configurations, push notification mechanisms, and microservice communication patterns, providing practical references for building scalable, reliable backend systems.

BackendDNSMicroservices
0 likes · 15 min read
Scalable Architecture: DNS, Load Balancing, API Gateways & Microservices
Liangxu Linux
Liangxu Linux
May 31, 2021 · Fundamentals

Mastering DNS: Architecture, Configuration, and Security Essentials

This comprehensive guide explains DNS fundamentals, its hierarchical distributed database design, TCP/UDP usage, recursive versus authoritative servers, configuration with BIND, load‑balancing techniques, sub‑domain delegation, and common security concerns such as amplification attacks.

BINDDNSDomain Delegation
0 likes · 18 min read
Mastering DNS: Architecture, Configuration, and Security Essentials
21CTO
21CTO
May 31, 2021 · Fundamentals

Mastering DNS: Core Concepts, Configuration, and Security Insights

This comprehensive guide explains DNS fundamentals, its distributed hierarchical database, TCP/UDP usage, top‑level domains, resolution workflow, recursive versus authoritative servers, caching, smart routing, bind configuration, load balancing, sub‑domain delegation, debugging tools, and DNS amplification attacks.

BINDDNSDomain Name System
0 likes · 18 min read
Mastering DNS: Core Concepts, Configuration, and Security Insights
ITPUB
ITPUB
May 30, 2021 · Operations

Mastering DNS: From Core Concepts to Advanced Configuration and Security

This comprehensive guide explains DNS fundamentals, its distributed hierarchical design, TCP/UDP usage, delegation, top‑level domains, resolution workflow, recursive versus authoritative servers, caching, smart routing, BIND configuration, load‑balancing techniques, sub‑domain delegation, debugging tools, and security considerations such as amplification attacks.

BINDDNSDomain Name System
0 likes · 19 min read
Mastering DNS: From Core Concepts to Advanced Configuration and Security
Open Source Linux
Open Source Linux
May 23, 2021 · Fundamentals

Mastering DNS: From Basics to Advanced Configuration and Security

This comprehensive guide explains DNS fundamentals, its distributed hierarchical structure, TCP/UDP usage, top‑level domains, resolution workflow, caching, smart routing, BIND configuration, load balancing, sub‑domain delegation, debugging tools, and security considerations such as amplification attacks.

BINDDNSDomain Name System
0 likes · 18 min read
Mastering DNS: From Basics to Advanced Configuration and Security
IT Architects Alliance
IT Architects Alliance
May 19, 2021 · Fundamentals

Understanding DNS: Architecture, Protocols, and BIND Configuration

This article provides a comprehensive overview of the Domain Name System (DNS), covering its distributed database design, TCP/UDP usage, hierarchical structure, top‑level domains, resolution workflow, recursive versus authoritative servers, caching, smart routing, BIND configuration, load‑balancing techniques, sub‑domain delegation, debugging tools, and security considerations such as DNS amplification attacks.

BINDConfigurationDNS
0 likes · 17 min read
Understanding DNS: Architecture, Protocols, and BIND Configuration
MaGe Linux Operations
MaGe Linux Operations
May 18, 2021 · Fundamentals

Understanding DNS: From Basics to Advanced Configuration and Security

This article explains the DNS system, its distributed architecture, protocol details, hierarchical database structure, resolution process, server types, configuration with BIND, load balancing, subdomain delegation, and security considerations such as amplification attacks, providing a comprehensive guide for operations and networking professionals.

BINDDNSDomain Name System
0 likes · 18 min read
Understanding DNS: From Basics to Advanced Configuration and Security
IT Architects Alliance
IT Architects Alliance
May 16, 2021 · Backend Development

Technical Architecture Overview of an Internet Company: DNS, Load Balancing, API Gateway, Microservices, and Push Systems

This article provides a comprehensive overview of an internet company's technical architecture, covering DNS resolution, load balancing strategies, long‑connection handling, API gateway functions, push notification mechanisms, microservice communication, distributed transaction support, and related infrastructure components.

DNSpush notifications
0 likes · 16 min read
Technical Architecture Overview of an Internet Company: DNS, Load Balancing, API Gateway, Microservices, and Push Systems
Efficient Ops
Efficient Ops
Apr 29, 2021 · Fundamentals

Mastering DNS: From Basics to Advanced Configuration and Security

This article explains the fundamentals of the Domain Name System, its distributed architecture, TCP/UDP usage, hierarchical structure, top‑level domains, resolution workflow, caching, smart routing, BIND configuration, load balancing, sub‑domain delegation, debugging tools, and security considerations such as amplification attacks.

BINDDNSDomain Name System
0 likes · 19 min read
Mastering DNS: From Basics to Advanced Configuration and Security
Liangxu Linux
Liangxu Linux
Apr 8, 2021 · Fundamentals

How DNS Resolves Domain Names: A Step‑by‑Step Guide

This article explains the DNS architecture—from root, top‑level, and local servers—to the nine‑step resolution process, covering record types, TTL, GTM, CDN caching, and how a user's request ultimately reaches the application server.

DNSDNS ResolutionDomain Name System
0 likes · 9 min read
How DNS Resolves Domain Names: A Step‑by‑Step Guide
Open Source Linux
Open Source Linux
Apr 2, 2021 · Fundamentals

How DNS Works: From Resolution to Proxy and Hijacking Explained

This article explains what DNS is, walks through the step‑by‑step resolution process for a typical website, describes DNS caching, introduces DNS proxy functionality for simplified network management, and warns about DNS hijacking and how to mitigate it.

DNSDNS ProxyDNS hijacking
0 likes · 5 min read
How DNS Works: From Resolution to Proxy and Hijacking Explained
JD Cloud Developers
JD Cloud Developers
Mar 23, 2021 · Fundamentals

How Your Browser Connects: A Step-by-Step Guide to Networking Basics

This article walks through the complete process of how a browser accesses a web resource, from parsing a URL and generating an HTTP request, through DNS name resolution, the construction of MAC, IP, TCP, and application headers, to the TCP three‑way handshake, data transmission, and the four‑step connection termination.

DNSHTTPNetworking
0 likes · 16 min read
How Your Browser Connects: A Step-by-Step Guide to Networking Basics
DevOps Cloud Academy
DevOps Cloud Academy
Mar 11, 2021 · Cloud Native

Understanding CoreDNS: A Cloud‑Native DNS Server for Kubernetes

CoreDNS is a modern, plugin‑based DNS server designed for containerized and Kubernetes environments, offering simple configuration, memory‑safe Go implementation, and tight integration with cloud‑native ecosystems, while also discussing its advantages, limitations, and relationship with the CNCF.

Cloud NativeContainersCoreDNS
0 likes · 8 min read
Understanding CoreDNS: A Cloud‑Native DNS Server for Kubernetes
Liangxu Linux
Liangxu Linux
Feb 9, 2021 · Information Security

Understanding DNS: From Hostnames to Secure Queries and Packet Anatomy

This article provides a comprehensive overview of the Domain Name System, explaining how hostnames map to IP addresses, the hierarchical distributed design of DNS servers, query processes, caching mechanisms, packet structures, common attack vectors, and defensive measures such as DNSSEC.

DNSDomain Name SystemNetworking
0 likes · 25 min read
Understanding DNS: From Hostnames to Secure Queries and Packet Anatomy
360 Smart Cloud
360 Smart Cloud
Feb 9, 2021 · Information Security

Using DNS for Network Measurement and Security Analysis

This article explains how DNS, the Internet's core naming protocol, can be leveraged for large‑scale network measurement and security analysis, covering DNS hijacking metrics, NTP pool observations, passive DNS techniques, and the DNSMon threat‑detection system with practical insights and references.

DNSData AnalyticsThreat Detection
0 likes · 12 min read
Using DNS for Network Measurement and Security Analysis
ITPUB
ITPUB
Jan 18, 2021 · Fundamentals

Understanding DNS: Basics, Query Process, Packet Structure, and Security

This comprehensive guide explains DNS fundamentals, hierarchical server architecture, query processes, packet structure, caching mechanisms, and common security threats, providing clear examples, diagrams, and practical insights for anyone preparing for networking interviews or deepening their understanding of internet name resolution.

DNSDomain Name SystemInternet
0 likes · 23 min read
Understanding DNS: Basics, Query Process, Packet Structure, and Security
Programmer DD
Programmer DD
Dec 27, 2020 · Cloud Native

Build an Unpolluted DNS with CoreDNS and dnsredir: A Step‑by‑Step Guide

This article explains how to configure CoreDNS—a cloud‑native, plugin‑based DNS server—to forward domestic queries to Chinese DNS servers and international queries to global resolvers using the third‑party dnsredir plugin, covering Corefile syntax, custom builds, scripts, and macOS service setup.

CoreDNSDNSKubernetes
0 likes · 21 min read
Build an Unpolluted DNS with CoreDNS and dnsredir: A Step‑by‑Step Guide
Programmer DD
Programmer DD
Dec 24, 2020 · Fundamentals

What Is DNS? A Beginner’s Guide to the Domain Name System

This article explains the fundamentals of the Domain Name System (DNS), covering how domain names map to IP addresses, the hierarchical structure of DNS zones, the roles of root, top‑level, and authoritative servers, query processes, record types, and practical command‑line tools like dig and ipconfig.

DNSDomain Name SystemNetworking
0 likes · 13 min read
What Is DNS? A Beginner’s Guide to the Domain Name System
360 Zhihui Cloud Developer
360 Zhihui Cloud Developer
Dec 23, 2020 · Information Security

Unlocking DNS: Measuring Networks and Detecting Threats with Data

This article explains how DNS data can be leveraged for both network measurement—such as quantifying global DNS hijacking and analyzing NTP pool servers—and security analysis, including threat detection with systems like DNSMon, highlighting the protocol’s growing importance for privacy, performance, and threat intelligence.

DNSNTP poolThreat Detection
0 likes · 11 min read
Unlocking DNS: Measuring Networks and Detecting Threats with Data
360 Tech Engineering
360 Tech Engineering
Dec 22, 2020 · Information Security

Using DNS for Network Measurement and Security Analysis

This article presents a comprehensive overview of DNS-based network measurement and security analysis, covering DNS fundamentals, hijacking metrics, NTP pool studies, passive DNS applications, and the DNSMon threat‑detection system, highlighting methods, findings, and practical implications for internet security.

DNSData AnalyticsThreat Detection
0 likes · 12 min read
Using DNS for Network Measurement and Security Analysis
Top Architect
Top Architect
Dec 13, 2020 · Frontend Development

Comprehensive Overview of Browser Rendering Process and HTTP Request Flow

This article provides a detailed, step‑by‑step explanation of how a browser processes a simple HTTP request—from URL parsing, DNS lookup, and TCP connection through server handling, response reception, HTML/CSS parsing, layout, painting, reflow/repaint, and JavaScript execution—highlighting key concepts, optimizations, and common pitfalls.

BrowserDNSHTTP
0 likes · 16 min read
Comprehensive Overview of Browser Rendering Process and HTTP Request Flow
Liangxu Linux
Liangxu Linux
Dec 9, 2020 · Fundamentals

How to Install and Use the Dog DNS Command-Line Tool on Ubuntu

This guide walks you through installing the Rust‑based Dog DNS client on Ubuntu, configuring faster crate mirrors, building the binary, and using its rich query features—including A, NS, MX lookups, custom DNS servers, JSON output, and command‑completion support.

DNSDogRust
0 likes · 8 min read
How to Install and Use the Dog DNS Command-Line Tool on Ubuntu
Architects' Tech Alliance
Architects' Tech Alliance
Nov 12, 2020 · Operations

Disaster Recovery Switching Techniques: Network, DNS, and Load Balancing Strategies

This article explains the principles and procedures of disaster recovery switching, covering network switching methods (IP, DNS, load balancer), DNS resolution processes, load balancing technologies, and application-level failover techniques such as clustering and active‑active architectures, highlighting decision criteria and best practices for data‑center continuity.

DNSload balancingnetwork switching
0 likes · 13 min read
Disaster Recovery Switching Techniques: Network, DNS, and Load Balancing Strategies
Architecture Digest
Architecture Digest
Oct 31, 2020 · Fundamentals

Ten Essential TCP/IP Topics Every Engineer Should Know

This article systematically explains the TCP/IP protocol suite, covering the four-layer model, data link, network, transport, and application aspects, and dives into key protocols such as IP, ARP, ICMP, DNS, as well as TCP connection management, flow control, and congestion control mechanisms.

CongestionControlDNSICMP
0 likes · 21 min read
Ten Essential TCP/IP Topics Every Engineer Should Know
iQIYI Technical Product Team
iQIYI Technical Product Team
Oct 30, 2020 · Mobile Development

Design and Optimization of iQIYI Mobile APM Network Monitoring System

The iQIYI mobile APM system provides real‑time, user‑level network monitoring with classified error detection, cloud‑controlled SDK sampling, second‑level backend storage, and web dashboards, while employing DNS three‑layer caching, weak‑network grading, gateway multiplexing, super‑pipeline proxies and layered retry strategies, reducing Android error rates from 5.3 % to 0.48 % and iOS from 4.63 % to 0.35 %.

APMDNSMobile Development
0 likes · 11 min read
Design and Optimization of iQIYI Mobile APM Network Monitoring System
Open Source Linux
Open Source Linux
Oct 27, 2020 · Fundamentals

Master DNS: From Basics to Advanced Queries with dig

This article explains the fundamentals of the Domain Name System, demonstrates how to use the dig tool to view detailed query processes, explores DNS record types, hierarchical lookups, root servers, and additional utilities like host, nslookup, and whois, providing a comprehensive guide for developers and network engineers.

DNSDomain Name SystemLinux
0 likes · 14 min read
Master DNS: From Basics to Advanced Queries with dig
Efficient Ops
Efficient Ops
Oct 25, 2020 · Fundamentals

Mastering DNS: How Domain Names Resolve to IP Addresses

This article explains the fundamentals of the Domain Name System (DNS), detailing how domain names are translated into IP addresses, the multi‑step query process, the role of DNS servers, hierarchical naming, record types, and useful command‑line tools for inspection.

DNSDNS RecordsDomain Name System
0 likes · 15 min read
Mastering DNS: How Domain Names Resolve to IP Addresses
Efficient Ops
Efficient Ops
Sep 30, 2020 · Fundamentals

How CDN Technology Supercharges Web Performance and Reduces Latency

This article explains what a Content Delivery Network (CDN) is, how it works through DNS and smart scheduling, its key components, and essential terminology such as CNAME records, origin host, and protocol origin, illustrating how CDN optimizes web traffic and speeds up user access.

CDNContent Delivery NetworkDNS
0 likes · 11 min read
How CDN Technology Supercharges Web Performance and Reduces Latency
Laravel Tech Community
Laravel Tech Community
Sep 21, 2020 · Fundamentals

Understanding CDN: Definition, Working Principles, and Key Terminology

This article explains what a Content Delivery Network (CDN) is, how it optimizes web traffic through caching and intelligent DNS routing, details the traditional versus CDN-enabled access processes, and clarifies related terms such as CNAME records, DNS, origin host, and protocol origin.

CDNCNAMEContent Delivery Network
0 likes · 11 min read
Understanding CDN: Definition, Working Principles, and Key Terminology
Open Source Linux
Open Source Linux
Sep 10, 2020 · Fundamentals

Mastering HTTP: From Basics to TLS, HTTP/2, QUIC and DNS

This article explains the fundamentals of HTTP, the differences between GET and POST, common status codes, HTTPS and TLS handshakes, the improvements introduced by HTTP/2 such as binary framing, multiplexing and header compression, as well as the role of QUIC and DNS in the end‑to‑end web request flow.

DNSHTTPHTTP/2
0 likes · 15 min read
Mastering HTTP: From Basics to TLS, HTTP/2, QUIC and DNS
Open Source Linux
Open Source Linux
Sep 9, 2020 · Fundamentals

How CDN Works: Boosting Web Performance with Edge Caching

This article explains what a Content Delivery Network (CDN) is, how it optimizes web traffic by caching resources at edge nodes, compares traditional and CDN-enabled access flows, and clarifies related terms such as CNAME records, DNS, and origin host configuration.

CDNContent Delivery NetworkDNS
0 likes · 10 min read
How CDN Works: Boosting Web Performance with Edge Caching
vivo Internet Technology
vivo Internet Technology
Sep 2, 2020 · Fundamentals

Understanding DNS and WebSocket: From Dig Commands to Real‑Time Connections

This article provides a systematic, hands‑on guide to DNS fundamentals—including dig queries, hierarchical lookups, Wireshark packet analysis, traditional DNS drawbacks, and HTTPDNS solutions—followed by a deep dive into WebSocket mechanics, handshake, frame structure, and security considerations, all illustrated with practical examples and code.

DNSHTTPDNSNetwork Protocols
0 likes · 21 min read
Understanding DNS and WebSocket: From Dig Commands to Real‑Time Connections
Programmer DD
Programmer DD
Aug 29, 2020 · Information Security

Can the US Really Shut Down Your .cn Domain? Inside DNS Root Server Secrets

After the US announced its “Clean Network” initiative, concerns arose about whether America could block national top‑level domains by controlling the 13 DNS root servers; this article explains DNS fundamentals, the role of root mirrors, historical shutdowns, and how China mitigates such risks.

AnycastChinaDNS
0 likes · 24 min read
Can the US Really Shut Down Your .cn Domain? Inside DNS Root Server Secrets
Liangxu Linux
Liangxu Linux
Aug 26, 2020 · Information Security

Can the US Shut Down .cn Domains? Inside DNS Root Servers and Their Defenses

The article explains how the DNS system works, why there are only 13 logical root servers, how anycast and global mirrors keep the system resilient, and evaluates the realistic risk of a nation‑state like the United States tampering with root zone data, especially for Chinese .cn domains.

AnycastDNSICANN
0 likes · 22 min read
Can the US Shut Down .cn Domains? Inside DNS Root Servers and Their Defenses
21CTO
21CTO
Aug 23, 2020 · Fundamentals

Can the US Really Shut Down .cn Sites? Inside DNS Root Server Mechanics

This article explains how DNS works, why there are only 13 logical root servers, how root mirrors and anycast keep the system resilient, the historical control of root zones, and why the United States cannot easily block Chinese domains despite its dominance in root server ownership.

AnycastDNSDomain Name System
0 likes · 21 min read
Can the US Really Shut Down .cn Sites? Inside DNS Root Server Mechanics
ITPUB
ITPUB
Aug 23, 2020 · Information Security

Can the US Really Shut Down .cn Websites? Inside DNS Root Server Mechanics

The article explains how DNS works, why there are only 13 logical root servers, how anycast distributes thousands of physical servers worldwide, the historical control the US has over most root servers, and what technical and policy measures China can use to protect its .cn domain from potential censorship.

AnycastCensorshipDNS
0 likes · 20 min read
Can the US Really Shut Down .cn Websites? Inside DNS Root Server Mechanics
ITPUB
ITPUB
Aug 22, 2020 · Fundamentals

Can the US Pull the Plug on .cn Domains? A Deep Dive into DNS Root Servers

The article explains how DNS works, why there are only 13 logical root servers, how anycast and mirror servers provide resilience, recounts historical cases of domain shutdowns, examines US control over root zones, and discusses mitigation strategies for protecting national domains.

AnycastDNSInternet Governance
0 likes · 24 min read
Can the US Pull the Plug on .cn Domains? A Deep Dive into DNS Root Servers
Liangxu Linux
Liangxu Linux
Aug 16, 2020 · Fundamentals

A Beginner’s Guide to VLANs, Gateways, DNS, and Subnet Masks

This article explains networking fundamentals such as VLANs, single‑arm routing, layer‑3 switches, gateways, DNS, MAC addresses, IP addressing, and subnet masks, using simple analogies and examples to illustrate how devices communicate across different network segments.

DNSLayer 3 SwitchNetworking Basics
0 likes · 14 min read
A Beginner’s Guide to VLANs, Gateways, DNS, and Subnet Masks
Architecture Digest
Architecture Digest
Jun 30, 2020 · Fundamentals

Understanding DNS: Structure, Types, and Resolution Process

This article explains the fundamentals of the Domain Name System (DNS), covering its hierarchical structure, the different types of top‑level domains, and the detailed nine‑step process by which a user's request is resolved from a human‑readable URL to an IP address.

CDNDNSDomain Name System
0 likes · 9 min read
Understanding DNS: Structure, Types, and Resolution Process
Liangxu Linux
Liangxu Linux
Jun 20, 2020 · Fundamentals

How DNS Translates Domain Names to IP Addresses: A Step‑by‑Step Guide

This article explains the DNS system, its hierarchical structure from root servers to local resolvers, and walks through the nine‑step process that converts a human‑readable domain name into an IP address, including record types, TTL, GTM, CDN, and application server interactions.

CDNDNSDNS Resolution
0 likes · 10 min read
How DNS Translates Domain Names to IP Addresses: A Step‑by‑Step Guide
Qunar Tech Salon
Qunar Tech Salon
Jun 16, 2020 · Operations

Qunar's Multi-IDC Deployment and Fault Self‑Healing Architecture

This article describes how Qunar scaled its IDC infrastructure, introduced multi‑IDC deployment, automated DNS‑based load balancing, open‑source DNSDB, and an IDC proxy built on Squid to achieve rapid fault self‑healing and transparent traffic switching for both user and third‑party access.

DNSOperationsProxy
0 likes · 8 min read
Qunar's Multi-IDC Deployment and Fault Self‑Healing Architecture
Efficient Ops
Efficient Ops
Jun 14, 2020 · Fundamentals

Why VLANs Matter: Simplifying Networks with Virtual LANs, Gateways, and DNS

This article explains the concept of VLANs, how they segment networks like classroom groups, the role of single‑arm routing and layer‑3 switches for inter‑VLAN communication, and clarifies related fundamentals such as gateways, DNS, MAC addresses, IP addressing, and subnet masks.

DNSNetworkingSubnet Mask
0 likes · 12 min read
Why VLANs Matter: Simplifying Networks with Virtual LANs, Gateways, and DNS
Liangxu Linux
Liangxu Linux
May 16, 2020 · Fundamentals

Master IP Basics: From Address Types to Subnetting, NAT and IPv6

This comprehensive guide explains the fundamentals of IP networking, covering IP address structure, classful and classless addressing, subnetting techniques, public and private address allocation, routing, fragmentation, IPv6 features, and essential protocols such as DNS, ARP, DHCP, NAT, ICMP and IGMP.

CIDRDHCPDNS
0 likes · 35 min read
Master IP Basics: From Address Types to Subnetting, NAT and IPv6
Efficient Ops
Efficient Ops
May 10, 2020 · Fundamentals

How DNS Works: From Domain Names to IP Addresses Explained

This article explains the DNS system, its hierarchical structure—including root, top‑level, and local servers—and walks through the nine‑step resolution process that translates human‑readable domain names into IP addresses for web access.

DNSDomain Name SystemInternet
0 likes · 9 min read
How DNS Works: From Domain Names to IP Addresses Explained
Open Source Linux
Open Source Linux
Apr 13, 2020 · Frontend Development

Inside the Browser: From URL to Render – A Complete Walkthrough

This article provides a thorough, step‑by‑step explanation of the entire browser request‑response cycle—including URL parsing, DNS lookup, TCP connection, server handling, response processing, and the detailed rendering pipeline—offering clear insight for developers and interview preparation.

BrowserDNSHTTP
0 likes · 15 min read
Inside the Browser: From URL to Render – A Complete Walkthrough
Top Architect
Top Architect
Apr 8, 2020 · Operations

Web Performance Optimization: Load Balancing, DNS, Reverse Proxy, and CDN

To improve web performance, the article examines network‑level optimizations such as request flow, load balancing techniques (including DNS‑based and hardware load balancers), reverse proxy mechanisms like Nginx, and the role of CDNs in caching static assets to reduce latency and enhance scalability.

CDNDNSnetwork optimization
0 likes · 9 min read
Web Performance Optimization: Load Balancing, DNS, Reverse Proxy, and CDN
MaGe Linux Operations
MaGe Linux Operations
Mar 22, 2020 · Operations

Linux Ops Essentials: Gray Release, DNS, RabbitMQ, LVS, MySQL & Keepalived

This article explains key Linux operations concepts such as gray release deployment, DNS resolution steps, RabbitMQ messaging, Keepalived high‑availability mechanisms, LVS load‑balancing modes, MySQL lock troubleshooting, replication lag mitigation, root password reset, backup tools, and compares Nginx, LVS, and HAProxy.

DNSmysql
0 likes · 16 min read
Linux Ops Essentials: Gray Release, DNS, RabbitMQ, LVS, MySQL & Keepalived
Cloud Native Technology Community
Cloud Native Technology Community
Mar 13, 2020 · Cloud Native

Understanding Kubernetes Service Discovery and Networking

This article explains how Kubernetes provides stable service discovery by using a flat pod network, Service objects with immutable front‑ends and dynamic back‑ends, DNS registration, Endpoints, and kube‑proxy iptables/IPVS rules to route traffic from virtual ClusterIP addresses to healthy pods.

ClusterIPDNSKubernetes
0 likes · 11 min read
Understanding Kubernetes Service Discovery and Networking
Top Architect
Top Architect
Feb 28, 2020 · Operations

Understanding Web Load Balancing: Principles, Types, and Implementation

This article explains the concept of web load balancing, its basic principles, and the most common techniques—including DNS round‑robin, CDN acceleration, IP‑level load balancing, HTTP redirects, and reverse‑proxy solutions—while discussing hardware vs. software options, session handling, and high‑availability considerations.

CDNDNSIP load balancing
0 likes · 13 min read
Understanding Web Load Balancing: Principles, Types, and Implementation
Architects' Tech Alliance
Architects' Tech Alliance
Feb 25, 2020 · Operations

Understanding Web Load Balancing: Principles, Techniques, and Implementation

This article explains the concept of web load balancing, its underlying one‑to‑many mapping principle, and compares common techniques such as DNS round‑robin, CDN acceleration, IP‑level load balancing, HTTP redirects, and reverse‑proxy solutions, highlighting their advantages, limitations, and typical deployment scenarios.

CDNDNSIP load balancing
0 likes · 12 min read
Understanding Web Load Balancing: Principles, Techniques, and Implementation
Aikesheng Open Source Community
Aikesheng Open Source Community
Feb 18, 2020 · Information Security

How Securing MySQL with TCP Wrappers Can Cause an Outage

This article examines a MySQL outage triggered by TCP wrappers, detailing how high thread counts, DNS latency, TIME_WAIT socket exhaustion, and frequent reads of /etc/hosts.allow and /etc/hosts.deny can block connections, and provides troubleshooting steps and mitigation recommendations.

DNSTCP wrappersTIME-WAIT
0 likes · 11 min read
How Securing MySQL with TCP Wrappers Can Cause an Outage
Efficient Ops
Efficient Ops
Dec 30, 2019 · Fundamentals

Demystifying DNS and HTTP: How Browsers Find and Load Websites

This article walks through the essential concepts and step‑by‑step processes of DNS resolution and HTTP communication, illustrating how a browser transforms a URL into an IP address, queries multiple name servers, and finally retrieves web content via HTTP requests.

DNSHTTPWeb Protocols
0 likes · 12 min read
Demystifying DNS and HTTP: How Browsers Find and Load Websites
MaoDou Frontend Team
MaoDou Frontend Team
Sep 12, 2019 · Frontend Development

How to Supercharge Front-End Performance: From DNS to Rendering

This guide walks through front‑end performance optimization, covering DNS resolution, TCP connection, HTTP request/response, server response techniques like compression and CDN, and browser rendering improvements such as reducing reflows, using lazy loading, and best practices to shrink request time and improve perceived speed.

DNSRenderingTCP
0 likes · 7 min read
How to Supercharge Front-End Performance: From DNS to Rendering
Efficient Ops
Efficient Ops
Jul 22, 2019 · Fundamentals

How IPv6 Adoption Impacts DNS: A Practical Support Report and Test Guide

This article presents a comprehensive IPv6 support report, outlines global deployment milestones, evaluates operating‑system and application IPv6 readiness, and details DNS‑related testing in pure IPv4, dual‑stack, and IPv6‑only environments, highlighting key findings and best‑practice recommendations.

DNSHappy EyeballsIPv6
0 likes · 17 min read
How IPv6 Adoption Impacts DNS: A Practical Support Report and Test Guide
MaGe Linux Operations
MaGe Linux Operations
Jul 2, 2019 · Operations

Three Simple Ways to Configure DNS on a Linux Machine

This guide explains three practical methods for setting up DNS resolution on Linux—editing the local hosts file, modifying the system's resolv.conf, and configuring network interface files—along with the precedence order and necessary service restarts.

DNSNetwork ConfigurationSystem Administration
0 likes · 3 min read
Three Simple Ways to Configure DNS on a Linux Machine
Architects' Tech Alliance
Architects' Tech Alliance
Jun 30, 2019 · Operations

How DNS and GSLB Enable Multi-Active Data Center Load Balancing

This article explains DNS fundamentals, the step‑by‑step resolution process, TTL caching, and how DNS‑based Global Server Load Balancing (GSLB) can direct traffic to the nearest active data‑center, providing a practical guide for building multi‑active, high‑availability infrastructures.

DNSData centerGSLB
0 likes · 10 min read
How DNS and GSLB Enable Multi-Active Data Center Load Balancing
NetEase Game Operations Platform
NetEase Game Operations Platform
Jun 29, 2019 · Operations

IPv6 Support Report and DNS Testing in Dual‑Stack Environments

This technical report presents an IPv6 adoption overview, global deployment status, operating‑system and application IPv6 support, and a series of DNS and network‑stack tests—including dual‑stack scenarios, code examples, and conclusions on best practices such as using getaddrinfo over gethostbyname.

DNSDual-StackHappy Eyeballs
0 likes · 17 min read
IPv6 Support Report and DNS Testing in Dual‑Stack Environments