Database: Added Tools

wiki/database.md

@@ -5,5 +5,13 @@ Most prominent type of database are SQL databases.
 
 ## Database management systems (DBMS)
 
-- [MySQL](/wiki/docker/mysql.md) is a relational DBMS
-- [MariaDB](/wiki/docker/mariadb.md) is a relational DBMS that is a fork of MySQL
+- [MySQL](/wiki/docker/mysql.md) is a relational DBMS for SQL.
+- [MariaDB](/wiki/docker/mariadb.md) is a relational DBMS that is a fork of MySQL.
+- [PostgreSQL](/wiki/postgresql.md) is a relational DBMS.
+
+## Database Tools
+
+There are many tools to manage (SQL) databases.
+One of the most easy ones to use is [sqlit](https://github.com/Maxteabag/sqlit) with which databases
+can easily be queried and edited in the [terminal](/wiki/linux/system_console.md).
+It is available for [Linux](/wiki/linux.md), MacOS and [Windows](/wiki/windows.md).

wiki/linux/system-hardening.md

@@ -10,6 +10,9 @@ data.
   list of security flaws of your system
 - [arch-audit](https://gitlab.archlinux.org/archlinux/arch-audit) is a tool to find vulnerabilities
   known to the [Arch](/wiki/linux/arch-linux.md) Security Team.
+- [aur-malware-check](https://github.com/lenucksi/aur-malware-check) is a tool to check if the
+  system uses packages from the
+  [AUR](/wiki/linux/package_manager/pacman_and_aur.md#installing-an-aur-program-with-a-specific-version).
 
 ## Specific Steps to Harden a System
 

wiki/linux/wayland.md

@@ -3,6 +3,14 @@
 [Wayland](https://wayland.freedesktop.org/) is a replacement for the
 [X11 window system](/wiki/linux/x_window_system.md).
 
+## Compositors
+
+The following is a list of Wayland compositors.
+
+- [dwl](/wiki/linux/suckless.md) is a compositor which is similar to suckless' X11 window manager
+  called dwm.
+- [mango](https://github.com/mangowm/mango) is a feature-rich Wayland compositor built on dwl.
+
 ## Usage
 
 This section addresses the usage of Wayland.