27 Aug 2026 5 min read Two ISPs are not redundancy if the ISP owns the IP A second line saves what leaves the office, not what comes in: when the main one drops, the IP address changes, and with it DNS, open sessions, tunnels and third-party allow lists. The three real ways to have two paths, with 2026 figures: EUR 1,800 a year in RIPE fees, EUR 50 for the ASN, roughly 7,700 to 10,200 dollars for the /24 itself, and the ninety-second default of the BGP hold timer.
15 Aug 2026 5 min read Redundancy is not route diversity: two cables, one weekend Two submarine cable systems failed on the same weekend off Perth, inside declared protection zones, and the earliest expected fix is 26 August: eighteen days. What to ask your carrier to find out whether your second line is a second route or just a second invoice, and what an SD-WAN does — and does not — solve.
6 Aug 2026 5 min read RPKI won't stop your route being hijacked: signing the origin doesn't secure the path 70.31% of internet routes now carry a valid RPKI signature, yet only 12.3% of the autonomous systems measured achieve full protection on their routes. And the hijack that actually gets used — copying your ASN into the origin and putting yourself in front of it — passes validation with a green light. What a ROA signs and what it leaves out, the four families of attack left outside, today's event counter with its small print, and the two questions worth all the others for your provider if you do not run your own AS.
31.4 Tbps DDoSRTBH: mitigated upstream 23 Jul 2026 5 min read Your firewall can't stop a DDoS: the latest record hit 31.4 Tbps. Real mitigation happens upstream In December 2025 the largest DDoS on record was mitigated: 31.4 Tbps, roughly 31,000 times the capacity of a 1 Gbps fibre. By the time that traffic reaches your firewall, the battle is already lost. What RTBH is, why a local blackhole won't save your link, and what to ask your provider.
AWS, July 16~8 hours of errors 21 Jul 2026 5 min read AWS went down again on July 16: eight hours that explain what a disaster recovery plan is (actually) for CloudFront served errors for about eight hours on July 16, 2026. It's the third major AWS outage in nine months, and none of them was an attack. What to map, what to promise and what NOT to build so your provider's incident doesn't become yours.
19 Nov 2025 5 min read 19MB file that paralyzed 20% of the Internet! Cloudflare's global outage On November 18, 2025, Cloudflare suffered its worst outage since 2019. An internal technical issue paralyzed much of the network for 6 hours, affecting X, ChatGPT, League of Legends and many other services.