Check for SMART status on Debian

 Install smartmontools and use smartctl:

sudo smartctl --all /dev/xxx

Unable to turn on BitLocker Error: System cannot find the file specified

Rename C:\Windows\System32\Recovery\REAgent.xml to REAgent.old 

Reference: https://learn.microsoft.com/en-us/answers/questions/3185720/unable-to-turn-on-bit-locker-error-system-cannot-f

Scan and repair corrupt Windows system files

Using elevated command prompt:

Dism /Online /Cleanup-Image /ScanHealth

Dism /Online /Cleanup-Image /CheckHealth

Dism /Online /Cleanup-Image /RestoreHealth

sfc /scannow

chkdsk /f /r

References:

• https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/repair-a-windows-image?view=windows-11
• https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/dism-image-management-command-line-options-s14?view=windows-11

Adding a Samba user and setting the password

I almost always forget to add users to Samba group after enabling Samba. So here it is:

sudo smbpasswd -a <username>

Change service shutdown timeout in Debian

Make a change so that slow-non/responding services to terminate quickly during shutdown:

sudo nano /etc/systemd/system.conf

Uncomment and edit to:

DefaultTimeoutStopSec=5s

Reboot or reload with:

sudo systemctl daemon-reload

Change GRUB boot delay

sudo nano /etc/default/grub

sudo update-grub

Adding ufw rules using application profiles while restricting source network

Unfortunately, the ufw help doesn't provide an example for using application profiles while specifying the source network. Here's an example how "OpenSSH" profile can be used but restricting the source network to local:

sudo ufw allow from 192.168.0.0/24 to any app OpenSSH