L’infrastructure, expliquée
Comment fonctionnent vraiment le DNS, les domaines, les certificats et la supervision — et par où commencer quand ça casse. Pas d’argumentaire commercial, pas de listicles.
Surveillance & statut9 sept. 2026 · 5 min de lecture
Infrastructure drift explained: what it is and how it creeps in
Infrastructure drift is the gap between what your config says and what's actually running. Here's how it happens, how tools detect it, and how to stay ahead of it.
Récents
7 sept. 2026 · 6 min de lecture
IPv4 vs IPv6 explained: differences, dual-stack, and why it matters
4 sept. 2026 · 5 min de lecture
What is synthetic monitoring? Scripted checks vs real users explained
2 sept. 2026 · 6 min de lecture
Certificate transparency explained: what CT logs are and why they matter
26 août 2026 · 5 min de lecture
Why your emails go to spam (and how to fix it)
Articles précédents
Domaines & DNS21 août 2026 · 6 min de lecture
What is DNSSEC and should you enable it?
DNSSEC stops attackers from forging DNS answers, but it's opt-in everywhere and easy to misconfigure. Here's the threat it solves, the trade-offs, and when to turn it on.
E-mail & délivrabilité19 août 2026 · 6 min de lecture
MX record not working: how to diagnose and fix broken mail routing
A step-by-step guide to diagnosing why your MX record isn't routing mail, covering priorities, trailing dots, CNAME targets and stale records.
Serveurs & Cloud17 août 2026 · 5 min de lecture
How to secure your infrastructure in 2026: a practical checklist
A practitioner's checklist for securing DNS, TLS, servers and monitoring in 2026 — covering zero trust, DNSSEC, certificate automation and supply chain hygiene.
Domaines & DNS14 août 2026 · 4 min de lecture
Why infrastructure inventory is important (and what to track)
An unmanaged domain, a forgotten server, or an expired certificate can take down production. Here's why infrastructure inventory is the foundation of reliable, secure operations.
Serveurs & Cloud12 août 2026 · 5 min de lecture
When should you use cloud firewalls?
Cloud firewalls filter traffic before it reaches your server; host firewalls filter it after. Here's when to use each, and the sane defaults to start with.
Surveillance & statut10 août 2026 · 5 min de lecture
Ping vs HTTP vs HTTPS monitoring: what each check actually proves
Ping, HTTP and HTTPS checks answer different questions about uptime. Here's what each one actually proves and why relying on ping alone is risky.
Certificats & SSL7 août 2026 · 4 min de lecture
Why browsers show "Not Secure": causes and fixes
Understand exactly why Chrome, Firefox and Safari flag a site as "Not Secure" and how to fix each cause, from missing HTTPS to mixed content and bad certificates.
E-mail & délivrabilité5 août 2026 · 5 min de lecture
DMARC policy: none, quarantine or reject — which should you use?
A practical guide to choosing p=none, quarantine or reject in your DMARC record, and how to move to full enforcement without breaking legitimate mail.
Surveillance & statut3 août 2026 · 6 min de lecture
Infrastructure drift detection: get alerted the moment your DNS or config changes
Learn how drift detection catches out-of-band DNS and config changes before they cause an outage, and how to get alerted the moment it happens.
Domaines & DNS31 juil. 2026 · 6 min de lecture
DNS propagation explained: why changes take time and how to check
DNS propagation isn't a global sync — it's TTL-based caching. Here's what actually controls the delay and how to check a change safely.
Domaines & DNS29 juil. 2026 · 5 min de lecture
Cloudflare DNS not updating: causes and how to fix it
Changed a DNS record in Cloudflare and nothing seems different? Here's how to tell a caching delay apart from a real config problem, and how to fix each.
Domaines & DNS27 juil. 2026 · 7 min de lecture
20 DNS security checks every domain should pass
A practical DNS security checklist covering DNSSEC, CAA, SPF/DKIM/DMARC, zone transfers and nameserver hygiene — with commands you can run today.
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