Hugo Méndez BlogGuides on Oracle Cloud, integrations, automation and web development.https://hugomendez.com.mx/en-USOracle Fusion REST API: pagination, filters and not fetching more than you needhttps://hugomendez.com.mx/en/blog/oracle-fusion-rest-api-pagination-filters/https://hugomendez.com.mx/en/blog/oracle-fusion-rest-api-pagination-filters/A practical guide to Oracle ERP Cloud / Fusion REST query parameters: q, fields, onlyData, limit, offset, totalResults, expand, orderBy and finder, with integration examples.Tue, 13 Oct 2026 00:00:00 GMTSPF, DKIM and DMARC explained: keep your domain email out of spamhttps://hugomendez.com.mx/en/blog/spf-dkim-dmarc-explained/https://hugomendez.com.mx/en/blog/spf-dkim-dmarc-explained/A practical guide to configuring SPF, DKIM and DMARC DNS records, what each does, common mistakes, alignment and Gmail/Yahoo sender requirements.Tue, 06 Oct 2026 00:00:00 GMTIntegrating SAP Business One with your store or app: Service Layer step by stephttps://hugomendez.com.mx/en/blog/sap-business-one-service-layer-integration/https://hugomendez.com.mx/en/blog/sap-business-one-service-layer-integration/A practical guide to consuming SAP Business One from other applications with Service Layer: login, OData queries with filters and paging, creating orders and best practices.Tue, 22 Sep 2026 00:00:00 GMTHow to migrate an Oracle APEX website to a modern stack without losing SEOhttps://hugomendez.com.mx/en/blog/migrate-oracle-apex-website-without-losing-seo/https://hugomendez.com.mx/en/blog/migrate-oracle-apex-website-without-losing-seo/Migrating a public Oracle APEX site to Astro or React while keeping rankings: mapping f?p= URLs, 301 redirects with Nginx, structured data and a zero-risk cutover.Tue, 15 Sep 2026 00:00:00 GMTApps that work without internet: offline sync with an outboxhttps://hugomendez.com.mx/en/blog/offline-first-sync-outbox/https://hugomendez.com.mx/en/blog/offline-first-sync-outbox/How to design a web or mobile app that keeps working without signal and syncs later without losing or duplicating data: local replica, operation queue, idempotency and conflicts.Tue, 01 Sep 2026 00:00:00 GMTRL Poolscapes case study: why a luxury pool builder moved to its own CRMhttps://hugomendez.com.mx/en/blog/rl-poolscapes-custom-crm-case/https://hugomendez.com.mx/en/blog/rl-poolscapes-custom-crm-case/How the custom CRM for RL Poolscapes, a luxury pool builder in Naples, Florida, was designed: from lead to warranty, package-based proposals, change orders, job costing and billing.Tue, 25 Aug 2026 00:00:00 GMTThe most common security holes in internal business apps (and how to close them)https://hugomendez.com.mx/en/blog/internal-app-security-holes/https://hugomendez.com.mx/en/blog/internal-app-security-holes/"It is only used by employees" is not a security model. IDOR, client-side filters, leaky exports, mass assignment and other issues I find in nearly every internal-app audit.Tue, 04 Aug 2026 00:00:00 GMTDocker and firewalld: why your "closed" port is still open (and what to do)https://hugomendez.com.mx/en/blog/docker-firewalld-exposed-ports/https://hugomendez.com.mx/en/blog/docker-firewalld-exposed-ports/Docker publishes ports around firewalld and ufw rules. How to check it, how to expose only what you need, the 127.0.0.1 trick and Compose override pitfalls with duplicated ports.Tue, 26 May 2026 00:00:00 GMT