linux support cmd

 lsblk sudo umount /dev/sda3 sudo shred -v -n 3 -z /dev/sda3 For use again partion  sudo mkfs.ext4 /dev/sda3 For mount  sudo mkdir /mnt/data sudo mount /dev/sda3 /mnt/data Only one folder  sudo shred -v -n 3 -z -u filename

 Verify ipp-usb Service Check if the service is running: systemctl --user status ipp-usb.service If not running, start it: systemctl --user start ipp-usb.service systemctl --user enable ipp-usb .service >.  Find Printer’s Local IPP URL Run: lpinfo -v | grep ipp You should see something like: ipp://localhost:60000/i pp/print > Add Printer via CUPS (Web or CLI) Using Web 1. Open browser → go to: http://localhost:631 (CUPS web interface). 2. Go to Administration → Add Printer. 3. Select ipp://localhost:60000/ipp/print. 4. Choose driver → Kyocera (or Generic IPP Everywhere if drive r not listed). Using Command Line sudo lpadmin -p Kyocera6000 -E -v ipp://localhost:60000/ipp/print -m everywhere Check installed printers: lpstat -p -d Print test page: echo "Hello Kyocera via USB-IPPs" | lp -d K yocera6000 So basically: ipp-usb → makes USB printer appear as ipp://localhost:60000. Use CUPS (localhost:631) or lpadmin to add it. Use sane-airscan for scanning. Sometimes http://loca...

 chrome://extensions/ Use grafics acceleration when available  turn off  Permanent Fix (so you don’t type it every time) 1. Open terminal. 2. Edit the Chrome .desktop launcher file: sudo nano /usr/share/applications/google-chrome.desktop 3. Find the line that starts with: Exec=/usr/bin/google-chrome-stable %U 4. Change it to: Exec=/usr/bin/google-chrome-stable --no-proxy-server %U 5. Save (Ctrl+O, then Enter) and exit (Ctrl+X). Permanent Fix  6 google-chrome-stable --no-proxy-server 7 . sudo apt install gnome-shell-extension-manager 8. sudo systemd-resolve --flush-caches 8 . sudo service network-manager restart