Tech Log Entry — LAN File Sharing (after upgrade to unmanaged switch)
Tech Log Entry — LAN File Sharing (or, SMB Between Windows 11 Desktop and Linux Mint Laptop) Background and Context With the three-machine automated backup infrastructure complete, the next practical need was interactive file sharing — a way to move files between the Windows 11 desktop and the Linux Mint laptop #1 without USB drives (cumbersome) or email (insecure). The two machines are connected via a dedicated gigabit LAN switch on an isolated local subnet (192.168.2.x), separate from the home Wi-Fi network. Goal: a shared folder accessible from both machines, with one-click access from each side, backed by proper credentials and restricted to the private LAN only. Security note: The Linux laptop #2 was deliberately excluded from this setup per its isolation policy — it hosts Claude Code and is kept off persistent shared network folders by design. File transfers from/to it will be done manually via USB, for now. Software and Protocol SMB (Server Message Block) — the Windows-nati...