Category: Security

Change W10 password

One day, a friendly wolf said:

so all you need is a usb stick with a windows 10 installer, boot to that, click “Repair my pc” after it asks you for the language -> open the troubleshooter -> open the command line interface

then switch to the C drive
then cd Windows\System32\
rename osk.exe osk.old|
rename cmd.exe osk.exe
close and boot windows normally
click the On-Screen-Keyboard which now opens cmd.exe
net user “username” *
type new password

make sure undo your rename of the cmd.exe and osk.exe things after you’re done

Upgrading the firmware of the Zyxel VMG8324-B10A

WARNING. As explained on the “About” page that this is a blog based on my notes, whether they fail or not. So proceed at your own risk.

My Zyxel router currently has firmware version 1.00(AAKL.14)C0 and since Zyxel is a good boye, they keep their devices up to date. Like all manufacturers should do IMO.

  1. Aquire all the firmware files that are available by going to ftp://ftp.zyxel.com/VMG8324-B10A/
  2. Remove the files that are older than your current firmware, in my case v.14
  3. BACK UP YOUR CURRENT FIRWARE AND SETTINGS
  4. Apply ALL updates one by one. Do not skip versions.

Good luck.

Resetting a user’s password in NextCloud

Resetting a lost admin password

The normal ways to recover a lost password are:

  1. Click the password reset link on the login screen; this appears after a failed login attempt. This works only if you have entered your email address on your Personal page in the Nextcloud Web interface, so that the Nextcloud server can email a reset link to you.
  2. Ask another Nextcloud server admin to reset it for you.

If neither of these is an option, then you have a third option, and that is using the occ command. See Using the occ command to learn more about using the occ command.

$ sudo -u www-data php /var/www/nextcloud/occ user:resetpassword admin
Enter a new password:
Confirm the new password:
Successfully reset password for admin

If your Nextcloud username is not admin, then substitute your Nextcloud username.

unRAID docker: /config/www/nextcloud
unRAID user: abc

$ sudo -u abc php /config/www/nextcloud/occ user:resetpassword admin

Adding SSH keys to Github

For Debian 9 (and MacOS)

  1. Check for old keys 
    1. cd ~/.ssh
    2. ls id_*
  2. Backup old keys 
    1. mkdir keys_backup
    2. cp id_* keys_backup
  3. Generate a new key 
    1. ssh-keygen -t rsa -C "your_email@example.com"
    2. don’t use a passphrase
  4. Go to the key directory 
    1. cd ~/.ssh
  5. Download the public key
  6. Open the key in Notepad++ (or similar)
  7. Log in at github.com
  8. Click on the right side on your profile picture
  9. Click on Settings
  10. Click on SSH and GPG Keys
  11. Click on New SSH Key
  12. Create a new name for the key
  13. Paste the contents of the public key into the Key field
  14. Click on Add SSH Key

Done.