IT for operating businesses
Notes
Notes on IT work: paid assessment, Wi-Fi, cameras. This is not a newsletter; it is the reasoning behind offers A–E.
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Cameras are part of the IT environment
A camera order often arrives as a separate vendor, a separate password, and a disk nobody can name. Recording belongs on the same network, identity, and backup file. Who watches, where the stream lands, and who owns an outage — those three lines are written before any box list.
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Using the lzcat Command
This command is an alias of `xz --format lzma --decompress --stdout`.
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Using the docker-inspect Command
Return low-level information on Docker objects. More information: <https://docs.docker.com/reference/cli/docker/inspect/>.
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Using the qm-unlink Command
This command is an alias of `qm disk unlink`.
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Using the npm-run-script Command
This command is an alias of `npm run`.
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Using the date Command
Set or display the system date. More information: <https://www.gnu.org/software/coreutils/manual/html_node/date-invocation.html>.
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Using the pacman-files Command
Query the local files database. See also: `pacman`, `pkgfile`. More information: <https://manned.org/pacman.8>.
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Wi-Fi is an operations problem
Wireless can look fine on the floor and still be copies of the same SSID, the same password, and a box nobody owns. A fault starts in one room and ends in nobody’s inventory. Wi-Fi is not a hardware order; circuits, wireless, firewall, and the LAN are planned together.
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Using the docker-images Command
This command is an alias of `docker image ls`.
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Using the command Command
Force the shell to execute the program and ignore any functions, builtins, and aliases with the same name. More information: <https://www.gnu.org/software/bash/manual/bash.html#index-command>.
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Log Management under GDPR/KVKK
Logs are the first place to look during an incident. Cryptographically signing them against tampering is a legal necessity.
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Using the git-clone Command
Clone an existing repository. More information: <https://git-scm.com/docs/git-clone>.
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Retail POS Endpoint Security
A PC at the checkout line isn't just another office computer. Stopped transactions mean direct revenue loss.
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Patch Management with Zero Downtime
Installing a patch is as easy as clicking a button. The hard part is guaranteeing the system boots up afterward.
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Transparency and Architecture in IT Procurement
A poorly chosen switch can bottleneck an entire network for years. The IT procurement process is an architectural decision, not a box-moving job.
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Using the docker-diff Command
This command is an alias of `docker container diff`.
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Legacy Server Virtualization
Physical servers running in a dusty corner that no one dares to touch are ticking time bombs for businesses.
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Using the pacman-t Command
This command is an alias of `pacman --deptest`.
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Using the rehash Command
This command is an alias of `hash -r`.
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Using the impacket-sambapipe Command
This command is an alias of `sambaPipe.py`.