Using passive adapters to connect DisplayPort output to HDMI or DVI input is problematic with wide-screen monitors as these adapters supports a maximum resolution of 1920×1200 at 60Hz. This issue can be alleviated by adding a specific mode to the set of valid output modes.
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How to add an encrypted hard disk
Add an encrypted hard disk to an existing Ubuntu system.
Write an operating system to microSD card using Raspberry Pi Imaging Utility.
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How to deal with overlapping LVM names
Today, I will connect the secondary encrypted hard disk from the previous Ubuntu installation to copy personal data, so there will be a problem with overlapping LVM names.
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How to suppress SSH banner
Suppress SSH banner when executing ad-hoc commands.
Check if the certificate matches DNS name or IP address
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How to export every LXD instance at once
Export every LXD instance at once.
Configure a lightweight compressed cache for swap pages to mitigate the performance impact of swapping on your desktop.
Create a multi-domain SSL certificate without a common name.
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How to generate a base64-encoded secret
Use the OpenSSL utility to generate a base64-encoded secret.