--- title: Blog url: 'https://www.sysadminheaven.com/blog' markdown: 'https://www.sysadminheaven.com/blog.md' date: '2026-08-29' description: 'Things I have learned the hard way, written down while they are still fresh - mostly Docker, networking and Linux, and mostly the kind of problem that only shows up once something is actually serving traffic.' --- # Blog Notes from running real infrastructure Things I have learned the hard way, written down while they are still fresh - mostly Docker, networking and Linux, and mostly the kind of problem that only shows up once something is actually serving traffic. 30 Aug 2026 12 min read ## [The SCCM client that was running, registered, and ignoring every deployment](https://www.sysadminheaven.com/blog/sccm-client-running-and-ignoring-you) Why a GPO and a script on a fileshare quietly underperforms, and what to replace it with A machine stops getting deployments. The console says Active. CcmExec is running. It registered this morning. Every check you would think to run comes back clean, and the machine has not installed anything in two months. Most shops end up with the same answer: a GPO and a remediation script on a fileshare. It half works, nobody entirely trusts it, and the manual triage never actually goes away. This is about why that happens and what to do instead. - [windows](https://www.sysadminheaven.com/blog/category:windows) - [sccm](https://www.sysadminheaven.com/blog/category:sccm) - [sccm](https://www.sysadminheaven.com/blog/tag:sccm) - [configmgr](https://www.sysadminheaven.com/blog/tag:configmgr) - [powershell](https://www.sysadminheaven.com/blog/tag:powershell) - [wmi](https://www.sysadminheaven.com/blog/tag:wmi) - [gpo](https://www.sysadminheaven.com/blog/tag:gpo) - [endpoint-management](https://www.sysadminheaven.com/blog/tag:endpoint-management) - [automation](https://www.sysadminheaven.com/blog/tag:automation) 29 Aug 2026 2 min read ## [Theme styleguide: every element the theme must handle](https://www.sysadminheaven.com/blog/theme-styleguide) A maintenance fixture exercising headings, code, tables, alerts and the awkward edge cases This page exists to be looked at, not read. It renders every element the theme supports so that regressions are obvious after a change. - [reference](https://www.sysadminheaven.com/blog/category:reference) - [windows](https://www.sysadminheaven.com/blog/tag:windows) - [linux](https://www.sysadminheaven.com/blog/tag:linux) - [powershell](https://www.sysadminheaven.com/blog/tag:powershell) - [containers](https://www.sysadminheaven.com/blog/tag:containers) - [networking](https://www.sysadminheaven.com/blog/tag:networking) - [troubleshooting](https://www.sysadminheaven.com/blog/tag:troubleshooting) --- ## Navigation - Previous: [Home](https://www.sysadminheaven.com/index.md) - Next: [Privacy Policy](https://www.sysadminheaven.com/privacy.md) - Children: - [Theme styleguide: every element the theme must handle](https://www.sysadminheaven.com/blog/theme-styleguide.md) - [The SCCM client that was running, registered, and ignoring every deployment](https://www.sysadminheaven.com/blog/sccm-client-running-and-ignoring-you.md)