Linux Process Management: ps, top, kill, and systemctl Audit
The 3 AM Page That Started This Checklist A logistics client paged us at 3 AM because their order API was returning 502s. The fix took ninety seconds once we…
PowerShell Providers: Navigate the Registry Like a Filesystem
The 2 AM Page That Started This Post A managed services client called us at 2 AM because a fleet of 180 Windows Server 2022 boxes had stopped autoloading their…
Bash Functions: Defining, Calling, and Returning Values
Last quarter a client’s deployment script hit 900 lines with zero bash functions. Just a massive wall of sequential commands. When something broke at 2 AM, nobody could figure out…
PowerShell For, ForEach, and While Loops Explained
Six Hours of Copy-Paste, Gone in One Loop Last quarter we inherited a client environment with 140 Windows servers. The previous admin had been manually checking disk space on each…
InterfaceAlias vs InterfaceDescription: Targeting NICs in PowerShell
Wrong NIC, Wrong Config, Very Bad Day A healthcare client came to us after a PowerShell script someone wrote six months earlier started throwing errors across 40 Windows Server boxes.…