Keep Debian 12 Security Updates Running on a Headless Server
Enable Debian’s unattended security updates over SSH, keep the default package sources, and verify scheduled runs through systemd and APT logs.
The Notes app on iOS 18 has added some extremely useful features for users, such as highlighting note content on iOS 18 or collapsing note content for a neater and easier-to-see interface. With notes with a lot of content and many topics, the option to collapse note content on iOS 18 helps you observe the content more comprehensively. Below are instructions for collapsing note content on iOS 18.
How to collapse notes on iOS 18
Step 1:
You access the notes app on iOS 18 then create a new note or open the note content you have created. The notes you have created need to format the content with titles and headings.
For notes with many Titles and headings, there will be an option to collapse the content.

Step 2:
Click on the note title , highlight the content you want to minimize, then click on the drop-down arrow icon . As a result, we will see the note content is minimized and only the title is displayed for easy tracking.
You continue to enter other content into the note. Each topic with content in the note will have the option to collapse the content for us to do if needed.
Step 3:
To expand the note content , just click on the arrow icon on the right.
Video tutorial on how to collapse notes on iPhone
Enable Debian’s unattended security updates over SSH, keep the default package sources, and verify scheduled runs through systemd and APT logs.
Compare mail delivery options, configure smartd on Ubuntu, and verify that disk-health warnings reach your inbox.
Restore DNS lookups on Debian 12 by checking systemd-resolved, repairing resolv.conf when needed, and verifying upstream DNS and application resolution.
Get Ubuntu to detect your monitor or TV as an audio output, select it in Sound settings, and check the connection or PipeWire device list if HDMI is missing.
Resolve Ubuntu APT signature warnings safely by identifying the failing source, refreshing its verified key, and checking the result without disabling security.
Learn the balanced three-phase formulas and convert line voltage, current, kW, kVA, and power factor step by step, with a worked example and limits to check.
Run a workload inside a systemd scope with CPUQuota and MemoryMax, then verify the limits through cgroup v2.
Set up dnscrypt-proxy as Pi-hole’s local DoH bridge on Ubuntu 24.04, with a localhost-only listener, resolver selection, and checks before switching DNS.
Check Ubuntu’s touchpad settings, confirm Wayland, and test GNOME’s built-in swipes before troubleshooting apps or hardware.
Create and verify a two-disk Debian 12 RAID 1 data array, format it safely, and configure it to assemble and mount after reboot.
