Add new tutorials for Pi-hole with PHP 8.3 and Unbound installation; create Windows index pages

- Created a new tutorial for installing Pi-hole with the latest PHP version (8.3) on Raspberry Pi.
- Added a tutorial for installing and configuring Unbound with Pi-hole for enhanced DNS security.
- Established index pages for Windows tutorials in both German and English, including descriptions and menu settings.

Author: marci

assets/images/posts/pihole/Pi-hole-Unbound-einrichten.png

@@ -1,5 +1,6 @@
 ---
 title: Linux
+descripton: "Tutorials rund um das Thema Linux" 
 menu:
   sidebar:
     name: Linux

assets/images/posts/pihole/Unbound-Pi-hole-testen.png

@@ -1,5 +1,6 @@
 ---
 title: Linux
+descripton: "Tutorials on the topic of Linux"
 menu:
   sidebar:
     name: Linux

assets/images/posts/pihole/Video-Pi-hole-und-Unbound.png

@@ -1,6 +1,7 @@
 ---
 title: "Linux SSH-Zugang absichern"
 date: 2025-07-05
+descripton: "Tutorial | Jetzt Linux SSH absichern / hardening | In diesem Tutorial zeige ich euch, wie ihr einen SSH-Zugang richtig und vor allem sicher absichert."
 hero: /images/posts/linux-ssh/SSH-absichern.png
 menu:
   sidebar:

assets/images/posts/pihole/pihole-raspberry-php.png

@@ -1,6 +1,7 @@
 ---
 title: "Secure Linux SSH"
 date: 2025-02-18
+descripton: "Tutorial | Secure Linux SSH now / hardening | In this tutorial, I will show you how to secure SSH access correctly and, above all, securely."
 hero: /images/posts/linux-ssh/SSH-absichern.png
 menu:
   sidebar:
@@ -11,7 +12,7 @@ menu:
 tags: ["Linux", "Security"]
 categories: ["Tutorials"]
 ---
-# Securing Linux SSH access correctly
+## Securing Linux SSH access correctly
 
 When operating a Linux server, it is usually necessary for administration purposes to establish secure access via SSH.
 

assets/images/posts/pihole/raspberry-pi-os-imager.gif

@@ -1,6 +1,7 @@
 ---
 title: "Proxmox VE mit fail2ban absichern"
 date: 2025-02-18
+descripton: "Erfahre in diesem Tutorial, wie du deine Proxmox VE Instanz basierend auf Debian 12 mit fail2ban vor Brute Force-Attacken absichern kannst." 
 hero: /images/posts/proxmox-fail2ban/proxmox_und_fail2ban.png
 menu:
   sidebar: