JJoseph O'Shaughnessy4h ago · 10 min readDiagnosing Slow TCP TransfersIn my TCP handshake post I promised to go further into what happens after the handshake. The connection opens fine, but the transfer is slow, or stalls, and the network team and the application team ejosephoshaughnessy.hashnode.dev
AAntonin Courtadon8h ago · 7 min readCheap VPS with 16 GB RAM Under 10 Euros a Month: What It RunsDisclosure: I'm Antonin Courtadon, founder of ACLClouds. Sixteen gigabytes of RAM used to be a server you paid for by the quarter. Today, several providers sell it for less than the price of a streamiantonincourtadon.hashnode.dev
SSentinelleai9h ago · 9 min readVerified, then swapped: two supply-chain attacks on the code you didn't writeOn 4 November 2026, two unrelated reports landed on the same day. In the morning, Debian, Ubuntu and the developers of APT, the program that installs software on both systems, published fixes for a flsentinelleai.hashnode.dev
AAmeen Usman20h ago · 2 min readThe generator says weekday 1-5The sentence the generator writes for 0 9 * * 1-5 is "at minute 0, at hour 9, on weekday 1-5". On Vixie cron and cronie those numbers are Monday through Friday, at 09:00. Monday is 1. Friday is 5. Sun12Skepttools.hashnode.dev
4404 Founders12h ago · 12 min readXen CVE-2026-102703: Guest Escape via Grant CopyA guest kernel sends a batch of grant copy operations, and on an unpatched host the hypervisor stops checking whose memory it is copying. Xen CVE-2026-102703 and CVE-2026-102704, published together as404-founders.com
Ooctave Nkurunziza13h ago · 10 min readHow to allow SSH from a specific IP only (without lockouts)An SSH port open to the whole internet gets password guesses all day. The simplest fix is to allow SSH from a specific IP only, so the server answers your address and nobody else's. This guide does th11Coctave.hashnode.dev
UUmer Amin Durrani15h ago · 3 min readLinux Incident Response: What to Capture Before RestartingA service is down. Someone suggests restarting it. That may restore service, but it can also erase clues about why it failed. In the first few minutes, collect a small, safe evidence snapshot before c11Cumeramindurrani.hashnode.dev
UUmer Amin Durrani16h ago · 3 min readLinux Disaster Recovery: A Backup Is Not a Recovery PlanA backup job can report “successful” every night and still leave a team unable to restore the service it depends on. The missing piece is usually not another copy of the data. It is a tested recovery 1umeramindurrani.hashnode.dev
JJason Dagana1d ago · 5 min readWhy Developers Should Understand the Terminal and LinuxRecently, I've been spending some time learning more about the terminal, shell and how operating systems work. Not necessarily because I want to become a system administrator, but because I've realise2jasondee.hashnode.dev
GGriffin Pundt1d ago · 5 min readAlpine Linux on an HP Mediasmart Server EX470, but I respect your timeSystem Specs The HP Mediasmart Server EX470 (2008) comes with the following specs: CPU: 1.8GHz AMD Sempron 3400+ (64-bit) RAM: 512 MB DDR2 Storage: 4 hot-swappable SATA drive bays Ports: 4x USB 2.0, just-the-steps.hashnode.dev
