Tag Archives: Ubuntu

How to get rid of GLib-GIO-ERROR **: Settings schema ‘***’ does not contain a key on Gnome 40+

In case you mess up the schema for any reason and you are no longer able to open the Gnome settings, e.g. gnome-control-center, just do the following and then logout and back in (or simply reboot): rm .config/dconf/user That’s it! … Continue reading

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Cracking WiFi keys with Aircrack-ng and hashcat using GPU

Disclaimer This post is for educational purposes only and should NOT be used otherwise. The primary aim is to understand how a weak WiFi password can be compromised in a few minutes, if not less. Introduction In this post I … Continue reading

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How to reset root user password in MySQL 5.7+

Was too busy and haven’t written anything for quite a while! Anyway, here is how to reset the root user password in MySQL 5.7 and later in a nutshell! service mysql stop mkdir -p /var/run/mysqld chown mysql:mysql /var/run/mysqld mysqld_safe –skip-grant-tables … Continue reading

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How to change max open files for nginx server on Ubuntu

The following error occurred a lot in /var/log/nginx/error.log: Too many open files This means that the nginx master process reached the maximum number of open files which was set to the default of 4096. (To check it, simply cat /proc/pid/limits, … Continue reading

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Fix icon and text size for hidpi displays on login screen in KDE on Ubuntu 19.04

Just create/edit the file /etc/sddm.conf and add the following: [X11] EnableHiDPI=true ServerArguments=-nolisten tcp -dpi 192 Reboot, and you’re good to go, Enjoy! Sources: https://www.reddit.com/r/kde/comments/amybg5/login_screen_on_hidpi_4k_screen/

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