How-tos

Jobs, step by step

Each how-to takes one concrete admin task from start to finish — settings, commands, the mistakes that usually cost an hour — and ends with something you keep: a CSV, a saved session, a subnet plan. All of them assume a network you administer.

• Audit which SMB shares on your LAN are writable, and by whom

  Find every SMB share on your own network, check which ones an ordinary user can write to, and confirm the result in PowerShell before you fix it.

  Uses LizardSystems Network Scanner
• Saved PuTTY sessions and SSH keys for your switches and routers

  Build a sane PuTTY baseline, save one session per switch, move to key-based logins with PuTTYgen and Pageant, and back the lot up in one command.

  Uses PuTTY
• Split a /24 into per-VLAN subnets without mistakes

  Carve one /24 into right-sized VLAN subnets largest-first, check every boundary with LanCalculator and a PowerShell script, then configure the gateways.

  Uses LizardSystems LanCalculator
• Sweep a VLAN and export the live hosts to CSV with Angry IP Scanner

  Sweep one VLAN on your own network with Angry IP Scanner, keep only live hosts, and export a clean CSV from the GUI or a one-line command.

  Uses Angry IP Scanner