Desktop Icons Missing in Windows 11? Eight Fixes, in Order
Desktop icons missing in Windows 11: show-icons setting, Desktop icon settings, restarting Explorer, OneDrive and Public Desktop folders, registry values, icon cache and display fixes.
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How to Update Traefik Proxy in Coolify (v3.6 to v3.7) Without Downtime Surprises
Coolify shows “New Traefik minor version available” and an “Attention required” badge on your server. Here is how I update the Traefik proxy safely, verify it, roll back if needed, and clear the stale warning.
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Linux File Transfer Cheat Sheet: scp, rsync, sftp, curl and netcat
A practical Linux file transfer cheat sheet: when to use scp, rsync, sftp, curl, wget, tar over ssh or netcat, with real output, resume tricks and the trailing-slash trap.
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Fix: “The User Does Not Belong to This Group” When Deleting a Local User (Error 2237)
Deleting a Windows local user fails with “The user does not belong to this group” (NET HELPMSG 2237). Here is what I tried, what failed, and the registry fix that finally worked.
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DISM CheckHealth vs ScanHealth vs RestoreHealth: What to Run and When SFC Fits
What DISM /CheckHealth, /ScanHealth and /RestoreHealth each do, the right order with sfc /scannow, how to repair from a Windows ISO, and how to read the results.
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ufw vs iptables: What Happens When Their Rules Conflict
I ran into this on a test box a while back. I had opened port 80 with ufw allow 80. Later I added iptables -A INPUT -p tcp –dport 80 -j DROP because a guide told me to. Port 80 stayed open. So I tried again, this time inserting the rule at the top of…
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Get-WmiObject Is Not Recognized in PowerShell 7: Use Get-CimInstance
Why Get-WmiObject is not recognized in PowerShell 7, which five WMI v1 cmdlets were removed, and how to convert them to the CIM cmdlets, including remote and date changes.
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“Command Not Found” in Linux: A Real Troubleshooting Checklist
Getting “bash: command not found” in Linux? A practical checklist: typos, PATH, cron and non-login shells, sudo’s secure_path, uninstall history and shadowed binaries.
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Git Command Reference for Sysadmins: Log, Diff, Reset, Revert and More
A practical Git command reference beyond the basics: log, diff, reset vs revert, remote rename, patch-based workflows with format-patch and am, and the developer/reviewer/admin roles.
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Cloning vs Forking on GitHub: What Actually Happens
Clone vs fork explained with a real local demo: adding an upstream remote, fetching a diverged project, and syncing a fork before opening a pull request.
