mem-pressure-monitor: Detect Real Memory Pressure Before the OOM Killer Does
the shed // ruby for devops “90% memory used” means nothing on its own — the kernel happily eats spare...
Stateful Windows Event Log Monitoring in Pure Ruby
the shed // ruby + wmi Re-scanning the whole Windows Event Log every cron run either misses nothing-changed windows or...
Auditing Local Administrators Across a Windows Fleet with Ruby and WMI
the shed // windows // sysadmin Local Administrators drift silently — a help-desk fix here, a vendor install there —...
Is That Windows Box Actually Patched? Auditing Update Compliance With Ruby and WMI
the shed // windows // patch compliance A running Windows Update service isn’t the same thing as a patched machine....
File Integrity Monitoring in Pure Ruby: Baseline, Check, Repeat
the shed // linux // sysadmin Antivirus catches known malware. It won’t tell you that someone quietly edited /etc/sudoers at...
Fan-Out, Don’t Fan-Fail: Running One Command Across a Fleet in Ruby
the shed // ruby + openssh The bash for h in hosts; do ssh $h cmd; done loop is serial,...
cert-store-audit: Audit Certificates and Private Keys Before They Expire or Leak
the shed // ruby for devops The one thing a live TLS check will never tell you is what’s sitting...
Back Up Right: Automatic Restore-Testing in Pure Ruby
the shed // linux // sysadmin Most backup scripts stop the moment tar exits 0. This one doesn’t: every run...
Stop Hand-Editing Crontab: A Safe, Idempotent Ruby Cron Job Manager
the shed // linux // cron & scheduling Hand-editing crontab -e on a shared box is one typo away from...
Watching systemd So Cron Doesn’t Have To: A Ruby Unit Watchdog
the shed // ruby + systemd A crash-looping service is bad. A crash-looping service that also crash-loops your restarts is...