Tagged articles
301 articles
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Java Architect Handbook
Java Architect Handbook
May 28, 2026 · Fundamentals

What Really Happens When You Hit Enter After Typing a URL?

The article breaks down the complete browser workflow from URL entry to page rendering, covering URL parsing, DNS lookup (recursive and iterative), TCP three‑way handshake, TLS negotiation, HTTP request/response exchange, and the final rendering steps, while also providing interview‑focused Q&A and a memorization mnemonic.

DNSHTTPTCP
0 likes · 15 min read
What Really Happens When You Hit Enter After Typing a URL?
Linux Tech Enthusiast
Linux Tech Enthusiast
May 15, 2026 · Information Security

Why HTTPS Is Secure: From HTTP Vulnerabilities to TLS Handshake

The article explains HTTP’s plaintext nature and its susceptibility to man‑in‑the‑middle attacks, then details how HTTPS (TLS) uses asymmetric key exchange, certificates, and a trusted CA hierarchy to establish encrypted communication and prevent such attacks.

AESCACertificate
0 likes · 10 min read
Why HTTPS Is Secure: From HTTP Vulnerabilities to TLS Handshake
Ops Community
Ops Community
Apr 28, 2026 · Operations

How Dangerous Is an HTTPS Certificate Expiration and How Ops Can Prevent It?

When an HTTPS certificate expires, browsers show warnings, users abandon sites, services become unavailable, and security is weakened, so this article explains the TLS fundamentals, the risks of expiration, real‑world outage cases, and provides step‑by‑step guidance on acquisition, deployment, automated renewal, monitoring, and best‑practice procedures for reliable certificate management.

HTTPSMonitoringOperations
0 likes · 25 min read
How Dangerous Is an HTTPS Certificate Expiration and How Ops Can Prevent It?
ByteDance SE Lab
ByteDance SE Lab
Apr 23, 2026 · Operations

Eliminate OpenClaw Ops Blind Spots with Volcano Engine TLS One‑Click Monitoring

The article explains how Volcano Engine's TLS provides a zero‑intrusion, one‑click plugin for OpenClaw that automatically collects logs, metrics, and traces, generates cost, operations, performance, and security dashboards, and includes authentication options, installation commands, and a SQL‑based token anomaly investigation.

MonitoringObservabilityOpenClaw
0 likes · 10 min read
Eliminate OpenClaw Ops Blind Spots with Volcano Engine TLS One‑Click Monitoring
IT Services Circle
IT Services Circle
Mar 2, 2026 · Information Security

Why HTTPS Beats HTTP: Encryption, Certificates, and TLS Handshake Explained

This article explains why HTTP is insecure—prone to eavesdropping, tampering, and identity spoofing—and how HTTPS uses symmetric and asymmetric encryption, hash functions, digital certificates, and a four‑step SSL/TLS handshake to provide confidentiality, integrity, and authentication for web traffic.

HTTPSInformation SecuritySSL handshake
0 likes · 17 min read
Why HTTPS Beats HTTP: Encryption, Certificates, and TLS Handshake Explained
Linux Tech Enthusiast
Linux Tech Enthusiast
Feb 27, 2026 · Information Security

Why HTTPS Is Secure: From HTTP Vulnerabilities to TLS and CA Trust

HTTPS secures web communication by replacing plaintext HTTP with TLS encryption, using asymmetric key exchange to protect symmetric keys, and relying on a hierarchical CA certificate chain to verify server identities, thereby preventing man‑in‑the‑middle attacks that exploit HTTP’s unencrypted traffic.

AESCertificate AuthorityHTTPS
0 likes · 10 min read
Why HTTPS Is Secure: From HTTP Vulnerabilities to TLS and CA Trust
Ops Community
Ops Community
Feb 25, 2026 · Databases

Hardening MySQL 8.4: Permissions, SSL, Auditing & Compliance Guide

This guide provides a step‑by‑step, production‑ready hardening plan for MySQL 8.4, covering permission hierarchy design, strong password policies, audit‑log configuration, TLS encryption, network access controls, firewall rules, backup scripts, monitoring metrics, and best‑practice recommendations to meet PCI‑DSS and Chinese GB/T 22239 compliance.

ComplianceHardeningTLS
0 likes · 27 min read
Hardening MySQL 8.4: Permissions, SSL, Auditing & Compliance Guide
MaGe Linux Operations
MaGe Linux Operations
Feb 10, 2026 · Cloud Native

How to Push Ingress Nginx to 100k QPS on a Single Pod – Full‑Stack Performance Tuning Guide

This article walks through a systematic, layer‑by‑layer performance tuning of Ingress Nginx on Kubernetes, covering worker process settings, connection and keep‑alive tuning, buffer and timeout adjustments, SSL/TLS optimizations, load‑balancing algorithms, kernel parameters, logging, rate‑limiting, benchmarking methods, troubleshooting tips, and a migration path to the Gateway API, all validated with real‑world load‑test results that achieve over 100 000 QPS on a 4 CPU/8 GiB pod.

KubernetesOptimizationTLS
0 likes · 40 min read
How to Push Ingress Nginx to 100k QPS on a Single Pod – Full‑Stack Performance Tuning Guide
IT Services Circle
IT Services Circle
Dec 13, 2025 · Information Security

Why HTTPS Is the Digital “Privacy Screen” Protecting Your Data

This article explains how HTTPS upgrades plain HTTP by adding authentication, encryption, and integrity checks, walks through its three security layers, traces the protocol’s evolution from SSL 2.0 to TLS 1.3, and discusses the practical benefits, costs, and adoption challenges of securing web traffic.

HTTPSSSLTLS
0 likes · 16 min read
Why HTTPS Is the Digital “Privacy Screen” Protecting Your Data
Laravel Tech Community
Laravel Tech Community
Dec 10, 2025 · Information Security

Why 1Panel’s TLS Policy Lets Attackers Execute Remote Commands

The open‑source 1Panel Linux management panel suffered a remote command execution flaw because vulnerable versions used tls.RequireAnyClientCert, allowing self‑signed certificates with a forged CN to bypass verification, which was fixed by switching to tls.RequireAndVerifyClientCert and loading a trusted root CA.

1PanelCVE-2025-54424Information Security
0 likes · 3 min read
Why 1Panel’s TLS Policy Lets Attackers Execute Remote Commands
Ray's Galactic Tech
Ray's Galactic Tech
Dec 10, 2025 · Information Security

Secure Your Elasticsearch with INFINI Gateway: TLS, Auth, Multi‑Tenant & HA Guide

This guide explains why Elasticsearch often becomes a security risk, then shows how to use INFINI Gateway as a non‑intrusive front‑end proxy to add TLS encryption, basic authentication, unified entry, multi‑tenant routing, rate‑limiting, auditing, and high‑availability for any 6.x/7.x/8.x version.

Basic AuthElasticsearchMulti‑tenant
0 likes · 9 min read
Secure Your Elasticsearch with INFINI Gateway: TLS, Auth, Multi‑Tenant & HA Guide
Ray's Galactic Tech
Ray's Galactic Tech
Dec 9, 2025 · Information Security

Master Elasticsearch Security: Complete Network, Auth, TLS & Hardening Guide

This comprehensive guide walks you through securing Elasticsearch by isolating the network, enabling authentication and role‑based access, encrypting traffic with TLS, upgrading legacy versions, configuring audit logging, setting up reverse‑proxy protection, and applying enterprise‑grade best practices to prevent data leaks.

AuthenticationElasticsearchHardening
0 likes · 10 min read
Master Elasticsearch Security: Complete Network, Auth, TLS & Hardening Guide
NiuNiu MaTe
NiuNiu MaTe
Dec 3, 2025 · Information Security

How HTTPS Shields Your Data: From Handshake to End‑to‑End Encryption

This article explains why HTTPS is essential for secure web communication, detailing how it upgrades plain HTTP by adding certificate‑based identity verification, TLS handshake negotiation, and AES‑GCM encryption with MAC verification to protect against eavesdropping, tampering, and phishing attacks.

CertificateHTTPSSSL
0 likes · 16 min read
How HTTPS Shields Your Data: From Handshake to End‑to‑End Encryption
21CTO
21CTO
Dec 2, 2025 · Information Security

What Let’s Encrypt’s New Certificate Validity Rules Mean for Your SSL Setup

Let’s Encrypt will shorten default TLS/SSL certificate lifetimes from 90 to 45 days and reduce domain‑validation reuse windows to seven hours, rolling out a trial in May 2026, a default change in July 2027, and full enforcement in August 2028, while also introducing a persistent DNS‑TXT validation method.

ACMEInformation SecurityLet’s Encrypt
0 likes · 4 min read
What Let’s Encrypt’s New Certificate Validity Rules Mean for Your SSL Setup
Raymond Ops
Raymond Ops
Nov 21, 2025 · Information Security

Mastering OpenSSL: From SSL/TLS Basics to Practical Encryption Commands

This article explains the fundamentals of SSL/TLS, why transport‑layer encryption is essential, and provides a hands‑on guide to using OpenSSL on Linux for symmetric and asymmetric encryption, hashing, password generation, random number creation, and base64 encoding with clear command‑line examples.

Command-lineLinuxOpenSSL
0 likes · 12 min read
Mastering OpenSSL: From SSL/TLS Basics to Practical Encryption Commands
Efficient Ops
Efficient Ops
Nov 19, 2025 · Information Security

Master HTTPS Certificate Creation: From CA Basics to Automated Shell Scripts

This guide walks you through the four core stages of HTTPS certificate handling—CA distribution, domain request, validation, and data encryption—while providing detailed OpenSSL commands, Linux/Windows/macOS trust‑store paths, and a ready‑to‑run shell script for fully automated certificate generation.

CertificateHTTPSOpenSSL
0 likes · 17 min read
Master HTTPS Certificate Creation: From CA Basics to Automated Shell Scripts
Raymond Ops
Raymond Ops
Nov 9, 2025 · Information Security

Master CFSSL: Step‑by‑Step Guide to Generate Self‑Signed Certificates on Linux

This comprehensive tutorial explains the fundamentals of PKI, CA, CSR, and cfssl configuration, shows how to install cfssl on Linux, details the cfssl gencert command and its core parameters, and provides practical, end‑to‑end examples for creating root, intermediate, server, client, and Kubernetes certificates.

CertificateLinuxPKI
0 likes · 14 min read
Master CFSSL: Step‑by‑Step Guide to Generate Self‑Signed Certificates on Linux
Mingyi World Elasticsearch
Mingyi World Elasticsearch
Nov 5, 2025 · Backend Development

Complete Easysearch.yml Field Guide and Security Configuration Walkthrough

This article answers a WeChat query by providing the official documentation link, demonstrating how to disable HTTP TLS, testing TCP TLS, and offering a line‑by‑line walkthrough of easysearch.yml’s core settings—including cluster basics, security options, TLS certificates, password policies, and critical risk warnings for production deployments.

ClusterEasysearchElasticsearch
0 likes · 8 min read
Complete Easysearch.yml Field Guide and Security Configuration Walkthrough
Ray's Galactic Tech
Ray's Galactic Tech
Nov 2, 2025 · Information Security

How to Secure Third‑Party API Calls with TLS, HMAC Signatures & RSA Encryption

To protect sensitive data in third‑party API integrations, this guide outlines a three‑layer security architecture—mutual TLS for channel protection, HMAC‑based request signing for integrity, and RSA encryption for data confidentiality—plus key management, monitoring, performance considerations, and implementation roadmaps.

API SecurityHMACRSA
0 likes · 10 min read
How to Secure Third‑Party API Calls with TLS, HMAC Signatures & RSA Encryption
Architect's Guide
Architect's Guide
Oct 14, 2025 · Information Security

How HTTPS Secures Web Traffic: Deep Dive into Certificates and Encryption

This article explains why HTTPS is considered secure, details the underlying TLS handshake—including certificate verification and symmetric data encryption—and clarifies common misconceptions such as the role of CAs, the possibility of man‑in‑the‑middle attacks, and whether HTTPS traffic can be intercepted.

Certificate AuthorityHTTPSMITM attack
0 likes · 11 min read
How HTTPS Secures Web Traffic: Deep Dive into Certificates and Encryption
Raymond Ops
Raymond Ops
Oct 13, 2025 · Information Security

How to Secure Your Ubuntu Kubernetes Cluster: A Step‑by‑Step Hardening Guide

This comprehensive guide explains how to harden an Ubuntu‑based Kubernetes cluster with external IPs by applying system hardening, firewall rules, TLS encryption, Calico network policies, RBAC permissions, audit logging, and verification steps to achieve a multi‑layered security posture.

HardeningKubernetesRBAC
0 likes · 17 min read
How to Secure Your Ubuntu Kubernetes Cluster: A Step‑by‑Step Hardening Guide
Code Wrench
Code Wrench
Sep 24, 2025 · Backend Development

Master Go Network Protocols: From TCP/UDP to HTTP/3 and TLS

This guide walks Go developers through the OSI and TCP/IP layering models, explains key transport and application protocols such as TCP, UDP, HTTP/1.1, HTTP/2, HTTP/3, RPC, WebSocket, and TLS, and provides practical Go code snippets and deployment tips for building performant, secure, and real‑time services.

GoHTTPNetwork Protocols
0 likes · 7 min read
Master Go Network Protocols: From TCP/UDP to HTTP/3 and TLS
Raymond Ops
Raymond Ops
Sep 16, 2025 · Cloud Native

How to Build a Secure High‑Availability Etcd Cluster on Linux

This guide walks through installing etcd, configuring a three‑node high‑availability cluster with TLS certificates, setting up host files, disabling SELinux and firewalld, creating a Certificate Authority using cfssl, generating node certificates, distributing them, and finally deploying and verifying the cluster on Linux systems.

CertificateCloud NativeLinux
0 likes · 19 min read
How to Build a Secure High‑Availability Etcd Cluster on Linux
Liangxu Linux
Liangxu Linux
Aug 26, 2025 · Information Security

How to Build a Private Certificate Authority (CA) on Linux with OpenSSL

This guide walks you through installing OpenSSL, creating a secure directory layout, configuring OpenSSL, generating a self‑signed root certificate, issuing client certificates, managing CA files, revoking certificates, and inspecting certificate details, all with clear command‑line examples and diagrams.

Certificate AuthorityLinuxOpenSSL
0 likes · 16 min read
How to Build a Private Certificate Authority (CA) on Linux with OpenSSL
Liangxu Linux
Liangxu Linux
Aug 24, 2025 · Information Security

Master OpenSSL: From SSL/TLS Basics to Practical Encryption Commands

This guide explains the fundamentals of SSL/TLS, why transport‑layer encryption is used, and provides step‑by‑step Linux OpenSSL commands for symmetric and asymmetric encryption, decryption, hashing, password generation, random data creation, and Base64 encoding, complete with examples and key options.

Base64LinuxOpenSSL
0 likes · 11 min read
Master OpenSSL: From SSL/TLS Basics to Practical Encryption Commands
Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Aug 13, 2025 · Backend Development

Boosting TLS Performance with Intel QAT and a Custom Keyless Architecture

This article details how XiaoHongShu's infrastructure team built a keyless architecture that offloads CPU‑intensive TLS private‑key signing to Intel QAT hardware, achieving massive HTTPS throughput gains, lower server costs, and valuable insights for similar high‑traffic TLS offload scenarios.

Intel QATKeyless ArchitecturePerformance
0 likes · 10 min read
Boosting TLS Performance with Intel QAT and a Custom Keyless Architecture
Volcano Engine Developer Services
Volcano Engine Developer Services
Aug 7, 2025 · Operations

How to Collect and Analyze JuiceFS Access Logs with Volcengine TLS

This article explains how to gather JuiceFS access logs using the LogCollector agent, parse and structure them with TLS, design index fields, build analytical dashboards, run advanced SQL queries for write‑IO distribution, sequential‑read ratios, overwrite detection, file‑lifecycle analysis, and set up real‑time monitoring and alerting for performance anomalies.

JuiceFSLogCollectorMonitoring
0 likes · 22 min read
How to Collect and Analyze JuiceFS Access Logs with Volcengine TLS
大转转FE
大转转FE
Aug 5, 2025 · Information Security

Why SSL/TLS Certificates Are Shrinking to 47 Days and How HTTPS Secures Your Data

With SSL/TLS certificates now limited to 13 months and soon to just 47 days, this article explains why encryption is essential, details symmetric and asymmetric cryptography, illustrates HTTPS handshake and certificate verification, and shows how these mechanisms protect against man‑in‑the‑middle attacks.

CertificateHTTPSMITM
0 likes · 22 min read
Why SSL/TLS Certificates Are Shrinking to 47 Days and How HTTPS Secures Your Data
Lin is Dream
Lin is Dream
Jul 22, 2025 · Information Security

Why HTTPS Needs More Than a Handshake: One‑Way vs Mutual TLS Explained

This article walks through the differences between plain HTTP, HTTPS one‑way authentication, and mutual TLS, detailing the TCP handshake, TLS handshakes, certificate creation, file‑type conventions, and practical security considerations for developers and engineers.

HTTPSHandshakeOpenSSL
0 likes · 16 min read
Why HTTPS Needs More Than a Handshake: One‑Way vs Mutual TLS Explained
Java Tech Enthusiast
Java Tech Enthusiast
Jun 26, 2025 · Information Security

Why Microsoft Office Users Saw TLS Certificate Errors and What It Means

A missed renewal of a TLS certificate for the domain https://support.content.office.net caused widespread certificate‑expired warnings for Office users on June 24, 2024, affecting all services that rely on several related domains and will likely be resolved once Microsoft updates the certificate during regular working hours.

Information SecurityMicrosoft OfficeOperations
0 likes · 3 min read
Why Microsoft Office Users Saw TLS Certificate Errors and What It Means
MaGe Linux Operations
MaGe Linux Operations
Jun 22, 2025 · Information Security

Mastering OpenSSL: From SSL/TLS Basics to Practical Encryption Commands

This guide explains the fundamentals of SSL/TLS, why encryption occurs at the transport layer, and provides comprehensive OpenSSL command‑line examples for symmetric encryption/decryption, asymmetric key generation, hashing, password creation, and random number generation, illustrating each operation with clear syntax and usage notes.

OpenSSLSSLTLS
0 likes · 14 min read
Mastering OpenSSL: From SSL/TLS Basics to Practical Encryption Commands
Ops Community
Ops Community
Jun 18, 2025 · Information Security

How to Build Your Own Private CA on Linux with OpenSSL

Learn step-by-step how to set up a private Certificate Authority on Linux using OpenSSL, covering CA and PKI basics, directory structure, configuration files, generating root and client certificates, managing revocation lists, and essential commands for secure certificate management.

Certificate AuthorityInformation SecurityLinux
0 likes · 16 min read
How to Build Your Own Private CA on Linux with OpenSSL
JavaScript
JavaScript
Jun 15, 2025 · Information Security

Mastering HTTPS Interview Questions: Impress Recruiters with Deep Security Insight

This guide explains how to answer the common interview question “Can you talk about HTTPS?” by covering its fundamental differences from HTTP, the role of SSL/TLS, confidentiality, integrity and authentication, the TLS handshake process, performance considerations, certificate chains, and how to present this knowledge to showcase both depth and breadth of security expertise.

HTTPSNetwork fundamentalsSecurity Interview
0 likes · 9 min read
Mastering HTTPS Interview Questions: Impress Recruiters with Deep Security Insight
MaGe Linux Operations
MaGe Linux Operations
May 24, 2025 · Information Security

Top 10 SSL/TLS Interview Questions Every Security Engineer Must Know

This article presents the ten most frequently asked SSL/TLS questions, covering protocol differences, handshake mechanics, certificate structure, PKI, common vulnerabilities, perfect forward secrecy, cipher suites, revocation methods, certificate pinning, and the improvements introduced in TLS 1.3, while also highlighting why mastering these concepts is essential for security professionals.

PKISSLTLS
0 likes · 23 min read
Top 10 SSL/TLS Interview Questions Every Security Engineer Must Know
Java One
Java One
May 24, 2025 · Backend Development

How to Secure Your Spring Boot Application with HTTPS: A Step‑by‑Step Guide

This tutorial walks you through obtaining or generating SSL certificates, configuring Spring Boot to use JKS or PKCS12 keystores, redirecting HTTP to HTTPS, and distributing the certificate to clients, with complete command‑line examples and code snippets for a production‑ready setup.

HTTPSJavaSSL
0 likes · 13 min read
How to Secure Your Spring Boot Application with HTTPS: A Step‑by‑Step Guide
IT Services Circle
IT Services Circle
Apr 6, 2025 · Fundamentals

Comprehensive Guide to Technical Interview Topics: Signals, Process Synchronization, TLS Handshake, Caching Issues, Java Collections, Heap Construction, and Scheduling Algorithms

This article provides an extensive overview of core technical interview subjects—including operating‑system signals, process synchronization and data transfer methods, TLS encryption steps, common caching pitfalls and remedies, Java collection implementations, heap‑building algorithms, and various CPU scheduling strategies—offering concise explanations and practical code examples for each concept.

AlgorithmsJavaTLS
0 likes · 28 min read
Comprehensive Guide to Technical Interview Topics: Signals, Process Synchronization, TLS Handshake, Caching Issues, Java Collections, Heap Construction, and Scheduling Algorithms
Lin is Dream
Lin is Dream
Mar 19, 2025 · Information Security

Master Encryption: Symmetric, Asymmetric, Certificates & Code Samples Explained

This article explains common encryption and signing algorithms—including AES, SM4, RSA2, and SM2—covers key representations in hex and Base64, details digital certificate structures, CSR application, TLS usage scenarios, OpenSSL commands for PEM conversion, and provides Java and JavaScript code examples for secure communication.

JavaOpenSSLTLS
0 likes · 27 min read
Master Encryption: Symmetric, Asymmetric, Certificates & Code Samples Explained
MaGe Linux Operations
MaGe Linux Operations
Mar 13, 2025 · Operations

How to Build a Secure High‑Availability Etcd Cluster on Linux

This guide walks through installing etcd, generating TLS certificates with cfssl, configuring static, dynamic, or DNS‑based discovery, setting up systemd service files for three nodes, and verifying cluster health using etcdctl, providing a complete step‑by‑step deployment for a production‑grade, cloud‑native key‑value store.

SystemdTLSetcd
0 likes · 19 min read
How to Build a Secure High‑Availability Etcd Cluster on Linux
Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Mar 6, 2025 · Backend Development

ROFF: A High‑Performance Seven‑Layer Rust‑Based Gateway with TLS Offload, QUIC/HTTP3, and Dynamic Module System

ROFF is a Rust‑implemented, seven‑layer gateway that delivers high‑throughput load balancing with memory‑safe performance, TLS hardware offload, native QUIC/HTTP3 support, a hot‑reload/upgrade mechanism, and an extensible module system allowing over thirty built‑in filters and custom Rust macros.

HTTP/3QUICRust
0 likes · 28 min read
ROFF: A High‑Performance Seven‑Layer Rust‑Based Gateway with TLS Offload, QUIC/HTTP3, and Dynamic Module System
Mingyi World Elasticsearch
Mingyi World Elasticsearch
Feb 18, 2025 · Operations

Secure and Customize Kibana in One Click with INFINI Gateway

The article explains why exposing Kibana without protection is risky, then shows how to use INFINI Gateway to add Basic Auth, TLS encryption, and flexible routing rules—without changing Kibana itself—providing step‑by‑step configuration, validation screenshots, and ideas for further customization.

Basic AuthInfinI GatewayKibana
0 likes · 11 min read
Secure and Customize Kibana in One Click with INFINI Gateway
Mingyi World Elasticsearch
Mingyi World Elasticsearch
Feb 17, 2025 · Information Security

Secure Elasticsearch with a Single InfinI Gateway: Adding TLS and Basic Auth

By placing an InfinI Gateway in front of Elasticsearch, you can quickly add Basic Authentication and TLS encryption without modifying the ES cluster, enabling unified security for legacy or multi‑version deployments, with step‑by‑step configuration examples, validation commands, and guidance on optional HTTP fallback.

Basic AuthElasticsearchInfinI Gateway
0 likes · 11 min read
Secure Elasticsearch with a Single InfinI Gateway: Adding TLS and Basic Auth
Raymond Ops
Raymond Ops
Jan 12, 2025 · Information Security

Master SSL/TLS Certificates: Formats, Generation & OpenSSL Commands

This guide explains common certificate formats (PEM, DER, CRT, CER), shows how to generate a CA key, CSR, and signed certificate with OpenSSL, demonstrates format conversions, and provides commands for inspecting and verifying certificates, all essential for secure operations.

CertificateDEROpenSSL
0 likes · 7 min read
Master SSL/TLS Certificates: Formats, Generation & OpenSSL Commands
ITPUB
ITPUB
Jan 12, 2025 · Operations

Why a TLS Handshake Can Saturate 100Mbps Uplink and How to Cut Bandwidth by 70%

A high‑concurrency data‑collection service quickly filled a 100 Mbps uplink because each GET request incurred a 1.68 KB TLS handshake, but switching to plain HTTP or enabling Keep‑Alive can dramatically reduce per‑request size and server load, saving up to 70% bandwidth.

HTTPSKeep-AliveTLS
0 likes · 5 min read
Why a TLS Handshake Can Saturate 100Mbps Uplink and How to Cut Bandwidth by 70%
Radish, Keep Going!
Radish, Keep Going!
Jan 6, 2025 · Information Security

How Much Data Does a Simple HTTPS Request Actually Transfer?

Using a local Go server and Wireshark, the author measured that a basic HTTPS request transmits 2,164 bytes—about ten times more than an equivalent HTTP request—revealing the bandwidth impact of TLS handshakes and suggesting when HTTP may be preferable for internal, non‑sensitive traffic.

GoHTTPSTLS
0 likes · 4 min read
How Much Data Does a Simple HTTPS Request Actually Transfer?
Raymond Ops
Raymond Ops
Jan 4, 2025 · Information Security

Understanding SSL Mutual Authentication vs One‑Way: When and Why to Use It

SSL/TLS certificates secure data between browsers and servers, but while one‑way authentication verifies only the server, mutual (two‑way) authentication also validates the client using personal authentication certificates, requiring additional keys and CA roots, making it ideal for high‑security enterprise environments.

Information SecuritySSLTLS
0 likes · 8 min read
Understanding SSL Mutual Authentication vs One‑Way: When and Why to Use It
Linux Cloud Computing Practice
Linux Cloud Computing Practice
Nov 5, 2024 · Cloud Native

How to Build a High‑Availability Kubernetes Cluster: Kubeadm & Binary Package Guide

This comprehensive tutorial walks you through planning, preparing hardware, choosing deployment methods, and step‑by‑step installation of a highly available Kubernetes cluster using kubeadm and manual binary packages, covering system initialization, certificate generation, component configuration, CNI networking, and cluster verification.

CNIDockerKubernetes
0 likes · 28 min read
How to Build a High‑Availability Kubernetes Cluster: Kubeadm & Binary Package Guide
macrozheng
macrozheng
Nov 5, 2024 · Information Security

How TLS Handshake Makes a Tiny GET Request Eat 1.68KB and How to Cut Bandwidth

After discovering that a simple GET request consumes 1.68 KB due to the TLS handshake, the article explains the handshake’s components, calculates the resulting bandwidth demand, and demonstrates how switching to HTTP or enabling Keep‑Alive can dramatically reduce traffic and server load in high‑concurrency scenarios.

HTTPHTTPSKeep-Alive
0 likes · 5 min read
How TLS Handshake Makes a Tiny GET Request Eat 1.68KB and How to Cut Bandwidth
IT Services Circle
IT Services Circle
Oct 22, 2024 · Information Security

Detailed Walkthrough of TLS 1.2 Handshake Using Wireshark

This article provides a step‑by‑step analysis of a TLS 1.2 HTTPS handshake captured with Wireshark, explaining the ClientHello, ServerHello, certificate parsing, key‑exchange messages, master secret derivation, and the final encrypted application data exchange.

HTTPSTLSTLS Handshake
0 likes · 14 min read
Detailed Walkthrough of TLS 1.2 Handshake Using Wireshark
Architecture Digest
Architecture Digest
Oct 14, 2024 · Information Security

Understanding TLS Handshake Overhead and Bandwidth Impact in High‑Concurrency Services

The article analyzes why a high‑concurrency data‑collection service quickly saturates a 100 Mbps uplink due to large TLS handshake payloads, demonstrates the bandwidth savings of switching to plain HTTP or using Keep‑Alive, and highlights practical considerations for secure versus performance‑optimized deployments.

HTTPSHandshakeKeep-Alive
0 likes · 4 min read
Understanding TLS Handshake Overhead and Bandwidth Impact in High‑Concurrency Services
Linux Ops Smart Journey
Linux Ops Smart Journey
Oct 1, 2024 · Cloud Native

Configure cert-manager Issuers & ClusterIssuers for Secure Kubernetes

This guide walks you through the fundamentals of cert-manager in Kubernetes, explaining the difference between Issuer and ClusterIssuer, and provides step‑by‑step commands to create self‑signed, CA, and ACME issuers, verify them, and reference official documentation for secure certificate automation.

ACMECAClusterIssuer
0 likes · 5 min read
Configure cert-manager Issuers & ClusterIssuers for Secure Kubernetes
MaGe Linux Operations
MaGe Linux Operations
Sep 27, 2024 · Information Security

How to Build a Private CA and Manage Certificates with OpenSSL

Learn step‑by‑step how to set up a private Certificate Authority using OpenSSL, create the necessary directory structure, configure files, generate self‑signed root certificates, issue and revoke client certificates, and understand related files and processes such as CRL, index databases, and certificate verification.

Certificate AuthorityOpenSSLPKI
0 likes · 17 min read
How to Build a Private CA and Manage Certificates with OpenSSL
Linux Ops Smart Journey
Linux Ops Smart Journey
Sep 27, 2024 · Cloud Native

How to Install and Configure cert-manager on Kubernetes with Helm

Learn step‑by‑step how to install Jetstack’s open‑source cert-manager on a Kubernetes cluster using Helm, from prerequisites and chart download to configuring TLS settings and deploying the service, ensuring secure inter‑service communication in cloud‑native environments.

Cloud NativeKubernetesTLS
0 likes · 6 min read
How to Install and Configure cert-manager on Kubernetes with Helm
MaGe Linux Operations
MaGe Linux Operations
Sep 15, 2024 · Information Security

Understanding TLS Handshakes: RSA vs ECDHE and TLS 1.3 Explained

This article provides a comprehensive overview of TLS handshakes, detailing the RSA and ECDHE key exchange mechanisms, their step-by-step processes, security properties, and the differences between TLS 1.2 and TLS 1.3, including cipher suite structures and certificate validation.

ECDHEInformation SecurityRSA
0 likes · 21 min read
Understanding TLS Handshakes: RSA vs ECDHE and TLS 1.3 Explained
Python Programming Learning Circle
Python Programming Learning Circle
Sep 6, 2024 · Information Security

Understanding HTTP, HTTPS, and How to Prevent Man‑in‑the‑Middle Attacks

This article explains the fundamentals of the HTTP protocol, illustrates its vulnerability to man‑in‑the‑middle attacks, demonstrates why plain HTTP is insecure, and shows how HTTPS, TLS/SSL, asymmetric encryption, and certificate authorities together protect communications from interception and tampering.

Certificate AuthorityHTTPHTTPS
0 likes · 9 min read
Understanding HTTP, HTTPS, and How to Prevent Man‑in‑the‑Middle Attacks
Selected Java Interview Questions
Selected Java Interview Questions
Aug 10, 2024 · Information Security

Understanding HTTP, MITM Attacks, and How HTTPS Secures Communication

This article explains the fundamentals of the HTTP protocol, demonstrates how man‑in‑the‑middle attacks exploit its plaintext nature, discusses symmetric and asymmetric encryption attempts to mitigate these risks, and describes how HTTPS (TLS) and the CA trust model provide robust protection against such attacks.

HTTPHTTPSInformation Security
0 likes · 9 min read
Understanding HTTP, MITM Attacks, and How HTTPS Secures Communication
Open Source Tech Hub
Open Source Tech Hub
Jul 2, 2024 · Information Security

Master GmSSL: Build, Install, and Use China’s National Cryptography Suite

This guide introduces GmSSL, an OpenSSL‑compatible toolbox that implements China’s national cryptographic algorithms, explains its lightweight and cross‑platform features, and provides step‑by‑step instructions for compiling, installing, and using core commands, SM4/SM3/SM2 operations, and certificate authority workflows.

GmSSLOpenSSLSM2
0 likes · 12 min read
Master GmSSL: Build, Install, and Use China’s National Cryptography Suite
Volcano Engine Developer Services
Volcano Engine Developer Services
Jun 14, 2024 · Operations

How ByteDance Built an EB‑Scale Log Service: Design & Optimization

This article details the evolution of ByteDance's TLS (Tinder Log Service) from a Loki‑based prototype to an EB‑scale, cloud‑native log system, covering its core properties, data organization, architecture, caching, hybrid storage, private codec, ecosystem compatibility, intelligent features, and real‑world case studies.

ByteDanceCloud NativeTLS
0 likes · 24 min read
How ByteDance Built an EB‑Scale Log Service: Design & Optimization
Alibaba Cloud Native
Alibaba Cloud Native
Apr 19, 2024 · Information Security

Securing Nacos with Zero‑Trust: TLS, Encryption, and Access Control

This article explains how to protect Nacos configuration data by applying zero‑trust principles, covering transport encryption with TLS, storage encryption using plugins, and fine‑grained access control through authentication and RBAC, while providing practical configuration steps.

Access ControlConfiguration SecurityNacos
0 likes · 18 min read
Securing Nacos with Zero‑Trust: TLS, Encryption, and Access Control
IT Services Circle
IT Services Circle
Apr 9, 2024 · Backend Development

ByteDance Backend Interview Experience: Key Topics and Knowledge Points

This article shares a detailed ByteDance backend interview experience covering three rounds, summarizing essential topics such as Java HashMap internals, Spring circular dependencies, MySQL indexing, OS process/thread concepts, networking protocols, TLS handshake, HTTP/2 features, and common design patterns, providing concise explanations and practical tips.

Design PatternsInterviewJava
0 likes · 25 min read
ByteDance Backend Interview Experience: Key Topics and Knowledge Points
IT Services Circle
IT Services Circle
Apr 4, 2024 · Information Security

Understanding HTTPS: Security Principles, SSL/TLS, and Encryption Mechanisms

HTTPS secures web communication by adding SSL/TLS encryption to HTTP, providing confidentiality, integrity, authentication, and non-repudiation through a combination of symmetric and asymmetric cryptography, hash functions, digital signatures, and certificate authorities, while addressing migration concerns and performance considerations.

HTTPSInformation SecuritySSL/TLS
0 likes · 18 min read
Understanding HTTPS: Security Principles, SSL/TLS, and Encryption Mechanisms
Java Tech Enthusiast
Java Tech Enthusiast
Mar 12, 2024 · Information Security

Apple's macOS cURL Default CA Store Change Raises Security Concerns

Apple’s recent change to macOS’s cURL implementation, which forces the ‑‑cacert option to use the system trust store instead of a user‑supplied certificate bundle, has been criticised by cURL founder Daniel Stenberg as unreliable and potentially insecure, though Apple says the behaviour is intentional and not a bug.

AppleCA CertificatesOpenSSL
0 likes · 3 min read
Apple's macOS cURL Default CA Store Change Raises Security Concerns
MaGe Linux Operations
MaGe Linux Operations
Jan 30, 2024 · Backend Development

How Does Envoy Proxy Process a Request? A Deep Dive into Its Lifecycle

This article walks through the complete lifecycle of a request handled by Envoy, covering terminology, network topology, configuration details, listener and filter chain processing, TLS transport sockets, HTTP/2 encoding/decoding, routing, load balancing, and post‑request cleanup, illustrated with diagrams and sample YAML configuration.

EnvoyProxyRequest Lifecycle
0 likes · 24 min read
How Does Envoy Proxy Process a Request? A Deep Dive into Its Lifecycle
Liangxu Linux
Liangxu Linux
Dec 23, 2023 · Information Security

How HTTPS Secures Your Data: A Beginner’s Guide to Encryption, Integrity, and Trust

This article explains why HTTPS is needed, defines the protocol, describes the four security properties—confidentiality, integrity, authentication, and non‑repudiation—covers symmetric and asymmetric encryption, hybrid encryption, hash functions, digital signatures, certificate authorities, and the trust chain that together protect web communications.

Certificate AuthorityHTTPSInformation Security
0 likes · 15 min read
How HTTPS Secures Your Data: A Beginner’s Guide to Encryption, Integrity, and Trust
MaGe Linux Operations
MaGe Linux Operations
Nov 23, 2023 · Information Security

How HTTPS Secures Your Data: A Beginner’s Guide to TLS, Encryption, and Certificates

HTTPS protects online communications by combining TLS encryption, digital certificates, and cryptographic techniques such as symmetric and asymmetric encryption, hash functions, and certificate authorities, ensuring confidentiality, integrity, authentication, and non‑repudiation, while addressing key exchange, trust chains, and common security pitfalls.

Certificate AuthorityHTTPSTLS
0 likes · 17 min read
How HTTPS Secures Your Data: A Beginner’s Guide to TLS, Encryption, and Certificates
ZhongAn Tech Team
ZhongAn Tech Team
Oct 9, 2023 · Information Security

Network Security Communication: Principles, Protocols, and Implementation in the ZA App

This article explains the fundamentals of symmetric and asymmetric encryption, one‑way and trapdoor functions, forward secrecy, TLS handshake, and how the ZA financial app applies a multi‑layered secure communication protocol—including certificate verification, replay protection, payload encryption, and request signing—to achieve robust, high‑performance network security across iOS, Android, and web platforms.

TLSasymmetric cryptographydigital certificates
0 likes · 21 min read
Network Security Communication: Principles, Protocols, and Implementation in the ZA App
Laravel Tech Community
Laravel Tech Community
Sep 12, 2023 · Information Security

OpenSSL 3.2 Alpha Release Introduces New Features and Protocol Support

The OpenSSL 3.2 Alpha has been released, adding client‑side QUIC support, TLS certificate compression, deterministic ECDSA, expanded Ed25519/Ed448 capabilities, AES‑GCM‑SIV, Argon2 with thread‑pool, HPKE, raw public‑key TLS, TCP Fast Open, pluggable post‑quantum signatures, Brainpool curves, SM4‑XTS, and optional Windows certificate‑store integration.

Alpha ReleaseOpenSSLProtocols
0 likes · 2 min read
OpenSSL 3.2 Alpha Release Introduces New Features and Protocol Support
dbaplus Community
dbaplus Community
Aug 23, 2023 · Information Security

Why APISIX TLS Handshakes Failed: Missing SNI and SSLv2 Pitfalls

During a migration from Nginx to APISIX, the team encountered TLS handshake failures caused by missing SNI fields and legacy SSLv2Hello usage, leading to a detailed investigation, protocol explanations, and configuration fixes to restore secure connections without modifying client code.

APISIXKubernetesSNI
0 likes · 11 min read
Why APISIX TLS Handshakes Failed: Missing SNI and SSLv2 Pitfalls
DaTaobao Tech
DaTaobao Tech
Jul 24, 2023 · Cloud Native

Tengine-Ingress: High‑Performance Cloud‑Native Ingress Gateway for Alibaba Group

Tengine‑Ingress is Alibaba’s cloud‑native Ingress gateway built on the high‑performance Tengine‑Proxy, replacing the legacy Unified Access with dynamic, loss‑less configuration, per‑domain gray‑rollout, dual‑certificate TLS, real‑time observability, and checksum validation, achieving up to 20 % lower latency, CPU and memory usage while scaling to thousands of pods, and paving the way for a universal API gateway supporting TCP, UDP, gRPC, QUIC/HTTP3 and advanced TLS.

Cloud NativeDynamic ConfigurationKubernetes
0 likes · 18 min read
Tengine-Ingress: High‑Performance Cloud‑Native Ingress Gateway for Alibaba Group
Test Development Learning Exchange
Test Development Learning Exchange
Jul 2, 2023 · Cloud Native

Understanding Kubernetes Ingress: Concepts, Core Components, and Practical Nginx Examples

This article explains what Kubernetes Ingress is, its core components, how to define Ingress rules with YAML, and provides practical examples using the Nginx Ingress Controller, including TLS support and basic authentication, to help manage traffic routing and load balancing in cloud‑native environments.

AuthenticationCloud NativeTLS
0 likes · 6 min read
Understanding Kubernetes Ingress: Concepts, Core Components, and Practical Nginx Examples