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Which Process Owns That Port? Mapping Connections to Processes on a Windows Server
An open port with no obvious owner is every admin's least favourite mystery. Here is how to map any TCP/UDP connection or…
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Practical tutorials, security insights, server administration guides and software updates for developers, IT teams, and businesses.
Linux
48 Hours After Januscape, the Big Distros Still Haven’t Shipped a Patched Kernel
Januscape (CVE-2026-53359) is a guest-to-host VM escape that was fixed upstream on 19 June and disclosed publicly on…
Linux
CVE-2026-53359 (Januscape): KVM VM-Escape Flaw in the Linux Kernel — Fixes and Kernels With a Patch
Januscape (CVE-2026-53359) is a use-after-free in KVM's x86 shadow MMU that lets a guest escape to the host…
Tutorials
Cloud-Free Appointment Scheduling: Running a Clinic on Your Own Local Network
Cloud scheduling is convenient until the internet drops, the subscription climbs, or you have to think hard about…
Tutorials
You Just Deleted an Important File — Here’s Exactly What to Do Next
Deleting a file usually does not erase it — the data sits on the disk until something overwrites…
Security
The Hidden Risks of Editing Your Photos on Free Online Sites
That free "crop and resize" website is convenient — but the moment you upload, your photo leaves your…
Tutorials
Double-Entry Accounting Explained for Non-Accountants (Debits, Credits and Why It Works)
Double-entry bookkeeping is a 500-year-old idea that quietly underpins every serious accounting system. Here is the whole concept…