whoami
Deep technical notes on operating systems, virtualization, cloud infrastructure, kernels, filesystems, emulation, and the history behind essential tools.
Find and safely retire abandoned S3 multipart uploads without confusing upload parts with completed objects or replacing unrelated lifecycle rules.
Use kubectl auth reconcile to merge RBAC rules and subjects deliberately, preview changes, and avoid accidental privilege removal or binding replacement.
Locate and checksum-check the ACPI Root System Description Pointer from legacy PC memory without following arbitrary physical addresses from DOS.
Choose a CWSDPMI launch and packaging mode deliberately, preserve host ownership, and test swap and large-page settings against the exact DJGPP workload.
Identify the ACL model on FreeBSD, interpret POSIX masks and NFSv4 entries, and validate inheritance before changing access on UFS or ZFS.
Identify a live TCP tuple before terminating only that session with tcpdrop, while accounting for IPv4/IPv6 selection, stale observations, and reconnect behavior.
Use Haiku's asynchronous bitmap drawing calls without mistaking a nonblocking return for message batching or completed rendering.
Use Haiku BWindow size limits deliberately, choose between explicit and layout-derived bounds, and test zoom and programmatic resizing separately.
Model GPT image layouts with repart.d, allocate flexible partition sizes, and separate partition growth from filesystem growth.
Use a narrowly scoped tmpfiles.d rule for filesystem lifecycles that outlive one service unit, preview age-based cleanup, and avoid broad or destructive sweeps.
Posts revised with new sources, corrected facts, or fixed links - not just new posts.