zyekh.com — Technical Articles & Security InsightsTechnical articles, Linux kernel news, system hardening guides, and cybersecurity research by Zyekh Abdul Qadir Jailani.https://zyekh.com/blog/2026-08-18T00:00:00ZZyekh Abdul Qadir Jailanizyekhabdulqadirjailani@zyekh.comhttps://zyekh.com/https://zyekh.com/assets/icons/favicon-32x32.pnghttps://zyekh.com/assets/icons/apple-icon-180x180.pngAccount Abstraction (ERC-4337): Smart Accounts, Bundlers & Paymaster Engineeringhttps://zyekh.com/blog/account-abstraction-erc-4337-and-paymasters-architecture.html2026-08-18T00:00:00Z2026-08-18T00:00:00ZDeep dive into UserOperation mempools, Alt-Mempool consensus, gas sponsorship via Paymasters, and WebAuthn/passkey hardware signing for smart wallets.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Linux Auditd Blueprint: Real-Time Kernel Event Tracking & Security Auditinghttps://zyekh.com/blog/auditd-kernel-event-monitoring-and-dfir-logging.html2026-08-04T00:00:00Z2026-08-04T00:00:00ZSecurity guide for configuring Linux Audit Framework (auditd) to log execve system calls, file integrity changes, and privilege escalation events.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Process Isolation on Linux: Unprivileged User Namespaces & Chroot Jailshttps://zyekh.com/blog/chroot-jail-and-unprivileged-namespaces-isolation.html2026-08-04T00:00:00Z2026-08-04T00:00:00ZTechnical blueprint for configuring unprivileged user namespaces and chroot jails to sandbox untrusted services without full container runtimes.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Cilium eBPF & Tetragon: Cloud-Native Runtime Security & Network Enforcementhttps://zyekh.com/blog/cilium-ebpf-cloud-native-network-security-and-cilium-tetragon.html2026-08-05T00:00:00Z2026-08-05T00:00:00ZDeep-dive guide on deploying Cilium eBPF for zero-trust network policy enforcement and Tetragon for real-time kernel event monitoring in Kubernetes.Zyekh Abdul Qadir Jailanihttps://zyekh.com/ColBERT Late Interaction: Advancing RAG Beyond Dense Embeddingshttps://zyekh.com/blog/colbert-late-interaction-advanced-rag.html2026-08-09T00:00:00Z2026-08-09T00:00:00ZHow late interaction retrieval models solve the lost-in-the-middle problem and dramatically improve Retrieval-Augmented Generation precision over standard single-vector embeddings.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Container Image Signing & SLSA Provenance Verification with Sigstore Cosignhttps://zyekh.com/blog/container-image-signing-and-slsa-provenance-with-cosign.html2026-08-05T00:00:00Z2026-08-05T00:00:00ZSupply chain security guide on signing OCI container images keylessly and verifying SLSA build provenance using Sigstore Cosign and Rekor.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Cross-Chain Bridges & Light Client Verification: Cryptographic State Proofshttps://zyekh.com/blog/cross-chain-bridges-and-light-client-cryptographic-verification.html2026-08-18T00:00:00Z2026-08-18T00:00:00ZTechnical architecture of trustless cross-chain interoperability, Merkle Mountain Ranges (MMR), Tendermint/IBC light clients, and validity proof relays.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Database Storage Engine Internals: LSM-Trees vs B+ Trees Read/Write Amplificationhttps://zyekh.com/blog/database-internals-lsm-trees-vs-b-trees-storage-engines.html2026-08-18T00:00:00Z2026-08-18T00:00:00ZComparative analysis of RocksDB, Pebble, and PostgreSQL storage architectures: MemTables, Write-Ahead Logs (WAL), SSTables, Compaction algorithms, and I/O bottlenecks.Zyekh Abdul Qadir Jailanihttps://zyekh.com/DeFi AMM Mathematics & Concentrated Liquidity: Invariant Curves & Tick Spacinghttps://zyekh.com/blog/defi-amm-mathematics-and-concentrated-liquidity-mechanics.html2026-08-18T00:00:00Z2026-08-18T00:00:00ZMathematical derivation of Constant Product (x * y = k), concentrated liquidity virtual reserves, tick math, and dynamic swap fee routing in Uniswap v3/v4.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Distributed Consensus Deep-Dive: Raft, Multi-Paxos & Leaderless Quorum Systemshttps://zyekh.com/blog/distributed-consensus-raft-vs-paxos-and-leaderless-quorums.html2026-08-18T00:00:00Z2026-08-18T00:00:00ZFormal breakdown of leader election, log replication, split-brain mitigation, quorum intersections (R + W > N), and Byzantine Fault Tolerance in distributed databases.Zyekh Abdul Qadir Jailanihttps://zyekh.com/DSPy: Replacing Prompt Engineering with Declarative Optimization Compilershttps://zyekh.com/blog/dspy-declarative-prompting-optimization.html2026-08-09T00:00:00Z2026-08-09T00:00:00ZWhy manual prompt tweaking is obsolete. Learn how to compile and optimize LM pipelines using DSPy declarative modules and metric-driven teleprompter algorithms.Zyekh Abdul Qadir Jailanihttps://zyekh.com/High-Speed eBPF/XDP Packet Filtering for Linux Server DDoS Mitigationhttps://zyekh.com/blog/ebpf-xdp-packet-filtering-and-ddos-mitigation.html2026-08-04T00:00:00Z2026-08-04T00:00:00ZTechnical guide for writing eBPF eXpress Data Path (XDP) kernel programs to drop malicious DDoS traffic at the network driver level.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Automated Intrusion Prevention: Fail2ban Configuration for SSH & Nginx Protectionhttps://zyekh.com/blog/fail2ban-intrusion-prevention-and-ssh-abuse-mitigation.html2026-08-04T00:00:00Z2026-08-04T00:00:00ZComprehensive blueprint for deploying Fail2ban to detect brute-force attacks, automate IP bans via iptables/nftables, and configure recidive long-term bans.Zyekh Abdul Qadir Jailanihttps://zyekh.com/HTTP/3 & QUIC Protocol Security Hardening: Mitigating 0-RTT Replay Attackshttps://zyekh.com/blog/http3-quic-security-hardening-and-0rtt-mitigation-blueprint.html2026-08-05T00:00:00Z2026-08-05T00:00:00ZProduction blueprint for hardening HTTP/3 and QUIC transport protocols, mitigating 0-RTT replay vectors, and configuring UDP rate limiting.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Kubernetes Pod Security Standards (PSS) & Native Admission Controlhttps://zyekh.com/blog/kubernetes-pod-security-standards-pss-and-admission-control.html2026-08-05T00:00:00Z2026-08-05T00:00:00ZProduction guide on enforcing Privileged, Baseline, and Restricted Pod Security Standards (PSS) using native Kubernetes admission controllers.Zyekh Abdul Qadir Jailanihttps://zyekh.com/KV Cache INT4 Quantization for 1M+ Token Context Windowshttps://zyekh.com/blog/kv-cache-int4-quantization-long-context.html2026-08-09T00:00:00Z2026-08-09T00:00:00ZSqueezing massive context windows into consumer GPUs by quantizing the Key-Value cache down to 4-bit precision without losing retrieval accuracy.Zyekh Abdul Qadir Jailanihttps://zyekh.com/High-Throughput Linux Audit Logging with Vector & ClickHouse DFIR Pipelinehttps://zyekh.com/blog/linux-audit-logging-with-vector-and-clickhouse-dfir.html2026-08-05T00:00:00Z2026-08-05T00:00:00ZArchitecture guide on building a high-throughput Linux kernel audit logging pipeline using Vector log forwarder and ClickHouse for real-time DFIR forensics.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Linux Kernel Sysctl Hardening: Securing TCP/IP Network Stack against SYN Floodshttps://zyekh.com/blog/linux-kernel-sysctl-hardening-network-stack-security.html2026-08-04T00:00:00Z2026-08-04T00:00:00ZHardening guide for tuning Linux kernel sysctl parameters to defend against TCP SYN floods, IP spoofing, packet redirects, and memory exhaustion.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Linux Landlock LSM: Unprivileged Application Sandboxing & Access Controlhttps://zyekh.com/blog/linux-landlock-lsm-unprivileged-sandboxing-blueprint.html2026-08-05T00:00:00Z2026-08-05T00:00:00ZEngineering guide on using the Landlock Linux Security Module to enforce unprivileged file system and network access control restrictions.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Linux Seccomp-BPF Syscall Filtering: Restricting Process Attack Surfaceshttps://zyekh.com/blog/linux-seccomp-bpf-syscall-filtering-hardening-guide.html2026-08-05T00:00:00Z2026-08-05T00:00:00ZStep-by-step engineering blueprint for implementing Seccomp-BPF syscall filters to restrict Linux process capabilities and block zero-day kernel exploits.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Comprehensive Linux VPS Hardening Blueprint for 2026https://zyekh.com/blog/linux-vps-hardening-guide-2026.html2026-07-26T00:00:00Z2026-07-26T00:00:00ZProduction-grade security blueprint for Debian and Ubuntu Linux servers. Includes SSH key enforcement, kernel sysctl parameters, UFW rate-limiting, Fail2Ban auditing, and automated updates.Zyekh Abdul Qadir Jailanihttps://zyekh.com/MEV & Private Mempool Architecture: Flashbots, Searchers & Order Flow Defensehttps://zyekh.com/blog/mev-and-private-mempool-architecture-in-ethereum.html2026-08-18T00:00:00Z2026-08-18T00:00:00ZTechnical analysis of Maximal Extractable Value (MEV), block builder auctions, sandwich attack mitigation, and MEV-Boost private RPC relay pipelines.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Why Minimalist Static Hosting Outperforms Monolithic Frameworks for Securityhttps://zyekh.com/blog/minimalist-server-architecture-pure-css-and-static-hosting.html2026-07-10T00:00:00Z2026-07-10T00:00:00ZArchitectural analysis comparing static edge hosting to monolithic server frameworks. Examines attack surface reduction, TTFB performance benchmarks, zero server maintenance, and pure CSS design systems.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Serving Mixture of Experts (MoE): Memory-Efficient Inference Routinghttps://zyekh.com/blog/moe-serving-mixture-of-experts-routing.html2026-08-09T00:00:00Z2026-08-09T00:00:00ZDeep dive into the gating router mechanisms of Mixtral 8x7B and DeepSeek-V2, expert parallelism strategies, and VRAM memory offloading patterns across multi-GPU setups.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Multi-Agent Swarm Orchestration: Hierarchical Agentic Workflowshttps://zyekh.com/blog/multi-agent-swarm-orchestration-patterns.html2026-08-09T00:00:00Z2026-08-09T00:00:00ZDesigning recursive agent loops, tool-calling pipelines, state graph transitions, and autonomous swarm routing for complex software engineering automation.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Nginx Reverse Proxy Security Hardening Blueprint for 2026https://zyekh.com/blog/nginx-reverse-proxy-security-hardening-blueprint-2026.html2026-08-03T00:00:00Z2026-08-03T00:00:00ZProduction guide for hardening Nginx reverse proxies with TLS 1.3, rate limiting, buffer overflow defense, and security headers.Zyekh Abdul Qadir Jailanihttps://zyekh.com/OmniRouter Architecture: Resilient LLM Gateway Routing & Fallback Pipelineshttps://zyekh.com/blog/omnirouter-llm-gateway-routing-fallback-patterns.html2026-08-09T00:00:00Z2026-08-09T00:00:00ZAdvanced API routing techniques for multi-LLM architectures, mitigating rate limits, and ensuring speculative decoding fallbacks across OpenAI, Anthropic, and open-source nodes.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Enforcing Linux Account Lockout Policies with PAM Faillock against Brute Forcehttps://zyekh.com/blog/pam-tally2-faillock-account-lockout-policy-guide.html2026-08-04T00:00:00Z2026-08-04T00:00:00ZEnforcing Linux Account Lockout Policies with PAM Faillock against Brute ForceZyekh Abdul Qadir Jailanihttps://zyekh.com/Post-Quantum Cryptography: ML-KEM & ML-DSA Migration for TLS and Infrastructurehttps://zyekh.com/blog/post-quantum-cryptography-mldsa-and-mlkem-migration.html2026-08-18T00:00:00Z2026-08-18T00:00:00ZPractical engineering guide for deploying NIST-standardized lattice-based algorithms (FIPS 203/204), hybrid TLS handshakes, and quantum-resistant key exchange.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Rust in the Linux Kernel: Securing Core Subsystems & Memory Safetyhttps://zyekh.com/blog/rust-in-linux-kernel-security-and-memory-safety-blueprint-2026.html2026-08-05T00:00:00Z2026-08-05T00:00:00ZComprehensive engineering guide on how Rust eliminates spatial and temporal memory vulnerabilities in modern Linux kernel drivers and network modules.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Implementing Strict Content Security Policy (CSP) & Security Headershttps://zyekh.com/blog/securing-web-applications-with-strict-content-security-policy.html2026-07-15T00:00:00Z2026-07-15T00:00:00ZComprehensive technical guide for configuring strict Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), X-Content-Type-Options, and Nginx security headers.Zyekh Abdul Qadir Jailanihttps://zyekh.com/S-LoRA: Multiplexing Thousands of Fine-Tuned Adapters on a Single GPUhttps://zyekh.com/blog/slora-adapter-multiplexing-single-gpu.html2026-08-09T00:00:00Z2026-08-09T00:00:00ZHow Unified Paging and scalable LoRA adapter serving allows cloud platforms to host 10,000+ custom fine-tuned models concurrently on a single GPU without OOM errors.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Smart Contract Security & EVM Bytecode Hardening: Formal Verification & Exploit Defensehttps://zyekh.com/blog/smart-contract-security-and-evm-bytecode-hardening.html2026-08-18T00:00:00Z2026-08-18T00:00:00ZComprehensive vulnerability mitigation blueprint covering Read-Only Reentrancy, Storage Slot Collision, and Halmos/Slither formal verification in Solidity.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Speculative Decoding & Medusa Architecture: Multi-Token Parallel LLM Accelerationhttps://zyekh.com/blog/speculative-decoding-and-medusa-multi-token-llm-serving.html2026-08-18T00:00:00Z2026-08-18T00:00:00ZSpeeding up autoregressive LLM inference by 2-3x using draft verification trees, parallel speculative heads, and tree-attention masking kernels.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Short-Lived SSH Certificate Authentication with HashiCorp Vault CAhttps://zyekh.com/blog/ssh-certificates-vault-ca-short-lived-authentication.html2026-08-05T00:00:00Z2026-08-05T00:00:00ZZero-trust SSH architecture blueprint for eliminating static SSH public keys using HashiCorp Vault Certificate Authority and short-lived certificates.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Structured Output Generation: Enforcing JSON & Regex at the Logits Levelhttps://zyekh.com/blog/structured-output-generation-logits-constraints.html2026-08-09T00:00:00Z2026-08-09T00:00:00ZBypassing brittle prompt engineering by directly manipulating LLM token logits to mathematically guarantee valid JSON schema outputs without retry loops.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Systemd Service Sandboxing: Restricting Process Capability & System Callshttps://zyekh.com/blog/systemd-service-sandboxing-and-security-hardening.html2026-08-04T00:00:00Z2026-08-04T00:00:00ZProduction guide for sandboxing Linux daemons using systemd security directives like ProtectSystem, SystemCallFilter, and CapabilityBoundingSet.Zyekh Abdul Qadir Jailanihttps://zyekh.com/UFW Firewall Hardening: Advanced Rate Limiting & Default-Deny Security Blueprinthttps://zyekh.com/blog/ufw-firewall-hardening-and-rate-limiting-blueprint-2026.html2026-08-04T00:00:00Z2026-08-04T00:00:00ZProduction guide for securing Linux servers using UFW with default-deny policies, custom application profiles, rate limiting, and interface isolation.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Understanding eBPF for Real-Time Linux Security Monitoringhttps://zyekh.com/blog/understanding-linux-ebpf-security-monitoring.html2026-07-20T00:00:00Z2026-07-20T00:00:00ZTechnical deep-dive on Extended Berkeley Packet Filter (eBPF) tracing, kprobes, tracepoints, bpftrace, and zero-overhead kernel runtime security monitoring.Zyekh Abdul Qadir Jailanihttps://zyekh.com/vLLM PagedAttention: Memory Optimization & High-Throughput LLM Inference Tuninghttps://zyekh.com/blog/vllm-pagedattention-high-throughput-inference-tuning.html2026-08-09T00:00:00Z2026-08-09T00:00:00ZDeep dive into OS-inspired virtual memory management for LLM KV caches, maximizing GPU utilization, and achieving 20x throughput scaling for production inference.Zyekh Abdul Qadir Jailanihttps://zyekh.com/WebGPU LLM Inference: Running 7B Models Natively in the Browserhttps://zyekh.com/blog/webgpu-llm-inference-browser-sandbox.html2026-08-09T00:00:00Z2026-08-09T00:00:00ZLeveraging WebGPU compute shaders, TVM WebAssembly, and WGSL pipelines to run private local LLMs entirely within client-side browser sandboxes without server infrastructure.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Securing VPS Infrastructure with WireGuard Mesh VPN Tunnels & Strict Firewall Ruleshttps://zyekh.com/blog/wireguard-vpn-tunneling-for-secure-vps-mesh-networks.html2026-08-04T00:00:00Z2026-08-04T00:00:00ZStep-by-step technical blueprint for creating encrypted private mesh networks between multi-cloud VPS nodes using WireGuard and UDP noise protocols.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Zero-Knowledge Proofs in L2 Rollups: zk-SNARKs vs zk-STARKs Mathematical Architecturehttps://zyekh.com/blog/zero-knowledge-proofs-snarks-vs-starks-in-l2-rollups.html2026-08-18T00:00:00Z2026-08-18T00:00:00ZIn-depth comparative analysis of algebraic polynomial commitments, prover compute overhead, recursive circuits, and on-chain verification gas limits in zkEVMs.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Zero-Trust Microservices with WebAssembly (Wasm) Runtime Sandboxinghttps://zyekh.com/blog/zero-trust-microservices-with-wasm-runtime-sandboxing.html2026-08-05T00:00:00Z2026-08-05T00:00:00ZArchitecture blueprint for running untrusted microservice code inside WebAssembly sandboxes with nanosecond startup times and linear memory bounds.Zyekh Abdul Qadir Jailanihttps://zyekh.com/Zero-Trust SSH Access Blueprint: FIDO2 Hardware Keys & SSH Certificate Authorityhttps://zyekh.com/blog/zero-trust-ssh-access-with-fido2-and-ssh-ca.html2026-08-03T00:00:00Z2026-08-03T00:00:00ZComprehensive technical blueprint for securing Linux SSH infrastructure using FIDO2/YubiKey hardware tokens, SSH Certificate Authority (SSH CA), and short-lived certificates.Zyekh Abdul Qadir Jailanihttps://zyekh.com/