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Latest Entries

Publishing a Self-Hosted Video Conferencing Server to Browser Guests: Proxied Signalling, Direct Media

Publish the meeting web app behind a reverse proxy and expose the media bridge's UDP ports separately, adding authenticated TURN for blocked networks. Guests join by browser link while your LAN stays hidden.

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Uninstalling Adobe Creative Cloud on Windows Without Leaving 700 MB of Leftovers

Adobe's official Creative Cloud uninstaller removes the app but leaves behind hundreds of megabytes of files and dozens of registry keys. Here is a safe, complete cleanup sequence for Windows 10 and 11.

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Moving a Nested "Packaging" Folder's Contents Up One Level in PowerShell Without Flattening

When reorganizing folders, moving a wrapper folder's children up one level can accidentally flatten deeper subfolders if you enumerate the wrong level. This article explains the correct PowerShell approach and how to avo...

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Fixing GNUPGHOME in MSYS2 When GnuPG Looks for Keys in the Wrong Directory

MSYS2 rewrites imported Windows environment variables and can turn GNUPGHOME into an unusable hybrid path. Export a cygpath-converted value in ~/.bashrc so GnuPG finds your existing keyring.

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AccessDenied on Every Call Doesn't Make a Leaked AWS Access Key Safe

A leaked AWS access key that authenticates but gets AccessDenied on every call is still a live credential. Learn what the errors really mean and what to do when the account isn't yours.

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How Receiving Mail Servers Handle Messages With No SPF, DKIM, or DMARC Records

A message with no SPF, DKIM, or DMARC records is not rejected by rule. Receivers log a 'none' result and fall back to local policy, which may accept, spam-folder, or refuse the mail.

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Windows 11 VM Boots to a Black Screen in VirtualBox: Fixing the Hyper-V Multi-vCPU UEFI Hang

A VirtualBox bug leaves multi-vCPU UEFI guests frozen on a black screen when Hyper-V runs on the Windows host. One VBoxManage command works around it, or you can disable Hyper-V to restore full-speed virtualization.

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Windows 10's Built-in Administrator vs. a Regular Admin Account: What Actually Differs

Both accounts hold full privileges, but the built-in Administrator skips UAC entirely while your own admin account must elevate. Here's how to tell them apart and which to use.

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Capturing only the first "image data" from file output: anchoring lazy grep patterns (and why MIME types are the better tool)

A greedy .*: prefix drags grep's lazy match to the second "image data" in file output. Anchor with \A and one lazy quantifier, or switch to file --mime-type for stable, scriptable results.

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Excel Keeps Showing Old Values from a Deleted Linked Workbook (Cached External Links)

Excel stores the last values it retrieved from external workbook links inside the file, so deleted sources keep displaying stale numbers. Refresh or remove the link, or turn off "Save external link values".

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