Always On VPN vs DirectAccess: Why the Upgrade Matters Always On VPN (AOVPN) is Microsoft’s modern replacement for DirectAccess, introduced with Windows 10 and Windows Server 2016. While DirectAccess provided transparent remote access using IPv6-over-IPv4 tunneling and IPsec, it was tightly coupled to Active Directory group policy, required IPv6 infrastructure, only supported domain-joined Windows Enterprise […]
How to Install Xdebug for PHP on RHEL 7 Xdebug is the de facto debugging and profiling extension for PHP. It transforms PHP development from a cycle of var_dump() statements into a proper interactive debugging experience: you can set breakpoints, step through code line by line, inspect variable values at runtime, and generate detailed execution […]
Introduction to Network Access Control on Windows Server 2022 Network Access Control (NAC) is a set of policies and technologies that restricts network access based on the identity and health state of the connecting device. On Windows Server 2022, the primary NAC infrastructure component is the Network Policy Server (NPS), which acts as a RADIUS […]
Introduction IBM AIX 7.3 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to set up strongswan ikev2 vpn on IBM AIX 7.3 […]
How to Configure Windows Server 2019 VXLAN Virtual Extensible LAN (VXLAN) is a network virtualization technology that encapsulates Layer 2 Ethernet frames within UDP packets, allowing virtual networks to span across Layer 3 boundaries. VXLAN is a key component of Microsoft’s Software Defined Networking (SDN) stack in Windows Server 2019, enabling massive scalability beyond the […]
Overview of the Kerberos Protocol Kerberos is the default authentication protocol for Active Directory domains in Windows Server 2022. Developed at MIT and standardized in RFC 4120, it uses symmetric-key cryptography and a trusted third party — the Key Distribution Center (KDC) — to authenticate principals (users, computers, and services) without transmitting passwords over the […]
A virtual private network, or VPN, allows you to securely encrypt traffic as it travels through untrusted networks, such as those at the coffee shop, a conference, or an airport.
🟠 High ⏱ 5–30 min Last verified: 9 November 2022 Affected versions: Ubuntu 22.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
Site-to-Site VPN Overview A site-to-site (S2S) VPN connects two physically separate networks — typically branch offices, data centers, or partner networks — over the public internet or a WAN link, making them appear as a single unified network. Unlike remote access VPN where individual users connect from their devices, S2S VPN operates between routers or […]
Introduction to Active Directory Certificate Services Active Directory Certificate Services (AD CS) is a Windows Server role that provides customizable services for creating and managing public key infrastructure (PKI) certificates. Organizations use AD CS to issue digital certificates for authentication (smart cards, VPN, 802.1X), encrypting data in transit (SSL/TLS for internal websites), encrypting data at […]
