diff --git a/linux.sh b/linux.sh
new file mode 100644
index 0000000..0649928
--- /dev/null
+++ b/linux.sh
@@ -0,0 +1,274 @@
+#!/bin/bash
+##########################################
+#   CheckMK Agent Registrierung
+#   Author: Maximilian Radtke
+#   E-Mail: maximilian.radtke@gc-gruppe.de
+##########################################
+
+
+# Farben für bessere Lesbarkeit
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+CYAN='\033[0;36m'
+NC='\033[0m' # No Color
+
+
+# Funktion für formatierte Ausgaben
+print_header() {
+    echo -e "\n${BLUE}╔════════════════════════════════════════════════════════════╗${NC}"
+    echo -e "${BLUE}║${NC}  CheckMK Agent - TLS & Updater Registrierung             ${BLUE}║${NC}"
+    echo -e "${BLUE}╚════════════════════════════════════════════════════════════╝${NC}\n"
+}
+
+
+print_success() {
+    echo -e "${GREEN}✓${NC} $1"
+}
+
+
+print_error() {
+    echo -e "${RED}✗${NC} $1"
+}
+
+
+print_info() {
+    echo -e "${CYAN}ℹ${NC} $1"
+}
+
+
+print_warning() {
+    echo -e "${YELLOW}⚠${NC} $1"
+}
+
+
+# Funktion zur Überprüfung ob Befehle existieren
+check_dependencies() {
+    local missing_deps=0
+   
+    if ! command -v cmk-agent-ctl &> /dev/null; then
+        print_error "cmk-agent-ctl nicht gefunden"
+        missing_deps=1
+    fi
+   
+    if ! command -v cmk-update-agent &> /dev/null; then
+        print_error "cmk-update-agent nicht gefunden"
+        missing_deps=1
+    fi
+   
+    if ! command -v curl &> /dev/null; then
+        print_error "curl nicht gefunden"
+        missing_deps=1
+    fi
+   
+    if ! command -v jq &> /dev/null; then
+        print_warning "jq nicht gefunden - API-Suche wird übersprungen"
+    fi
+   
+    if [ $missing_deps -eq 1 ]; then
+        print_error "Bitte installieren Sie die fehlenden Abhängigkeiten"
+        exit 1
+    fi
+}
+
+
+# Funktion zur Eingabevalidierung
+validate_input() {
+    local var_name=$1
+    local var_value=$2
+   
+    if [ -z "$var_value" ]; then
+        print_error "$var_name darf nicht leer sein"
+        return 1
+    fi
+    return 0
+}
+
+
+# Funktion zum Suchen des Hosts in CheckMK via API
+search_checkmk_host() {
+    local server=$1
+    local site=$2
+    local username=$3
+    local password=$4
+    local search_hostname=$5
+   
+    # Prüfe ob jq verfügbar ist
+    if ! command -v jq &> /dev/null; then
+        return 1
+    fi
+   
+    print_info "Suche Host in CheckMK..." >&2
+   
+    # API URL
+    local api_url="https://${server}/${site}/check_mk/api/1.0/domain-types/host_config/collections/all"
+   
+    # Bearer Token Format: "username password"
+    local auth_header="Authorization: Bearer ${username} ${password}"
+   
+    # API Aufruf
+    local response=$(curl -s -k -H "$auth_header" -H "Accept: application/json" "$api_url" 2>/dev/null)
+   
+    if [ $? -ne 0 ]; then
+        print_warning "Konnte nicht auf CheckMK API zugreifen" >&2
+        return 1
+    fi
+   
+    # Suche nach dem Host (case-insensitive)
+    local search_lower=$(echo "$search_hostname" | tr '[:upper:]' '[:lower:]')
+    local found_host=$(echo "$response" | jq -r --arg search "$search_lower" '.value[]? | select(.id | ascii_downcase == $search) | .id' 2>/dev/null | head -n 1)
+   
+    if [ -n "$found_host" ]; then
+        print_success "Host gefunden in CheckMK: $found_host" >&2
+        echo "$found_host"
+        return 0
+    else
+        print_warning "Host '$search_hostname' nicht in CheckMK gefunden" >&2
+        return 1
+    fi
+}
+
+
+# Header anzeigen
+print_header
+
+
+# Abhängigkeiten prüfen
+print_info "Prüfe Systemvoraussetzungen..."
+check_dependencies
+print_success "Alle benötigten Befehle gefunden"
+echo ""
+
+
+# Benutzereingaben sammeln
+echo -e "${BLUE}═══ Schritt 1: Server-Informationen ═══${NC}\n"
+
+
+while true; do
+    read -p "Server: " SERVER
+    validate_input "Server" "$SERVER" && break
+done
+
+
+while true; do
+    read -p "Site: " SITE
+    validate_input "Site" "$SITE" && break
+done
+
+
+echo ""
+echo -e "${BLUE}═══ Schritt 2: Anmeldedaten ═══${NC}\n"
+
+
+while true; do
+    read -p "Benutzername: " USERNAME
+    validate_input "Benutzername" "$USERNAME" && break
+done
+
+
+while true; do
+    read -s -p "Passwort: " PASSWORD
+    echo ""
+    validate_input "Passwort" "$PASSWORD" && break
+done
+
+
+echo ""
+echo -e "${BLUE}═══ Schritt 3: Hostname ═══${NC}\n"
+
+
+# Verwende den FQDN direkt vom System
+DEFAULT_HOSTNAME=$(hostname | tr '[:upper:]' '[:lower:]')
+
+
+read -p "Hostname [$DEFAULT_HOSTNAME]: " HOSTNAME
+
+
+if [ -z "$HOSTNAME" ]; then
+    HOSTNAME="$DEFAULT_HOSTNAME"
+fi
+
+
+# Versuche den Host in CheckMK zu finden
+echo ""
+CHECKMK_HOSTNAME=$(search_checkmk_host "$SERVER" "$SITE" "$USERNAME" "$PASSWORD" "$HOSTNAME")
+
+
+if [ -n "$CHECKMK_HOSTNAME" ]; then
+    # Host in CheckMK gefunden - verwende exakte Schreibweise
+    HOSTNAME="$CHECKMK_HOSTNAME"
+else
+    # Host nicht gefunden - verwende Kleinschreibung als Fallback
+    HOSTNAME=$(echo "$HOSTNAME" | tr '[:upper:]' '[:lower:]')
+    print_warning "Verwende Fallback-Hostname: $HOSTNAME"
+    echo ""
+    read -p "Trotzdem fortfahren? (j/n): " CONTINUE
+    if [[ ! "$CONTINUE" =~ ^[jJ]$ ]]; then
+        print_warning "Abbruch durch Benutzer"
+        exit 0
+    fi
+fi
+
+
+# Zusammenfassung anzeigen
+echo ""
+echo -e "${BLUE}═══ Zusammenfassung ═══${NC}\n"
+echo -e "Server:    ${GREEN}$SERVER${NC}"
+echo -e "Site:      ${GREEN}$SITE${NC}"
+echo -e "Username:  ${GREEN}$USERNAME${NC}"
+echo -e "Hostname:  ${GREEN}$HOSTNAME${NC}"
+echo ""
+
+
+read -p "Fortfahren? (j/n): " CONFIRM
+if [[ ! "$CONFIRM" =~ ^[jJ]$ ]]; then
+    print_warning "Abbruch durch Benutzer"
+    exit 0
+fi
+
+
+# TLS-Registrierung durchführen
+echo ""
+echo -e "${BLUE}═══ Schritt 4: TLS-Registrierung ═══${NC}\n"
+print_info "Registriere Agent mit TLS..."
+
+
+if yes | cmk-agent-ctl register --hostname "$HOSTNAME" --server "$SERVER" --site "$SITE" --user "$USERNAME" --password "$PASSWORD"; then
+    print_success "TLS-Registrierung erfolgreich abgeschlossen"
+else
+    print_error "TLS-Registrierung fehlgeschlagen (Exit-Code: $?)"
+    echo ""
+    print_info "Mögliche Ursachen:"
+    print_info "  - Netzwerkverbindung zum Server prüfen: ping $SERVER"
+    print_info "  - Firewall-Regeln prüfen (Port 8000): telnet $SERVER 8000"
+    print_info "  - DNS-Auflösung prüfen: nslookup $SERVER"
+    exit 1
+fi
+
+
+# Updater registrieren
+echo ""
+echo -e "${BLUE}═══ Schritt 5: Updater-Registrierung ═══${NC}\n"
+print_info "Registriere Agent-Updater..."
+
+
+if cmk-update-agent register -s "$SERVER" -i "$SITE" -H "$HOSTNAME" -p https -U "$USERNAME" -S "$PASSWORD"; then
+    print_success "Updater-Registrierung erfolgreich abgeschlossen"
+else
+    print_error "Updater-Registrierung fehlgeschlagen (Exit-Code: $?)"
+    exit 1
+fi
+
+
+# Erfolgsmeldung
+echo ""
+echo -e "${GREEN}╔════════════════════════════════════════════════════════════╗${NC}"
+echo -e "${GREEN}║${NC}  ✓ Registrierung erfolgreich abgeschlossen!               ${GREEN}║${NC}"
+echo -e "${GREEN}╚════════════════════════════════════════════════════════════╝${NC}"
+echo ""
+print_info "Der CheckMK Agent ist nun registriert und einsatzbereit"
+echo ""
+
+
+exit 0
\ No newline at end of file
diff --git a/windows.ps1 b/windows.ps1
new file mode 100644
index 0000000..6aba7a8
--- /dev/null
+++ b/windows.ps1
@@ -0,0 +1,334 @@
+##########################################
+#   CheckMK Agent Registrierung
+#   Author: Marius Gielnik
+#   E-Mail: marius.gielnik@gc-gruppe.de
+##########################################
+
+
+# Farben fuer bessere Lesbarkeit
+$ColorInfo = "Cyan"
+$ColorSuccess = "Green"
+$ColorError = "Red"
+$ColorWarning = "Yellow"
+
+
+# Fester API-Server
+$API_SERVER = "monitoring.gc-gruppe.net"
+
+
+# Funktion fuer formatierte Ausgaben
+function Write-Header {
+    Write-Host ""
+    Write-Host "============================================================" -ForegroundColor Cyan
+    Write-Host "  CheckMK Agent - TLS & Updater Registrierung             " -ForegroundColor Cyan
+    Write-Host "============================================================" -ForegroundColor Cyan
+    Write-Host ""
+}
+
+
+function Write-Success {
+    param([string]$Message)
+    Write-Host "[OK] $Message" -ForegroundColor Green
+}
+
+
+function Write-ErrorMsg {
+    param([string]$Message)
+    Write-Host "[FEHLER] $Message" -ForegroundColor Red
+}
+
+
+function Write-Info {
+    param([string]$Message)
+    Write-Host "[INFO] $Message" -ForegroundColor Cyan
+}
+
+
+function Write-Warning {
+    param([string]$Message)
+    Write-Host "[WARNUNG] $Message" -ForegroundColor Yellow
+}
+
+
+function Write-SectionHeader {
+    param([string]$Message)
+    Write-Host ""
+    Write-Host "--- $Message ---" -ForegroundColor Cyan
+    Write-Host ""
+}
+
+
+# Funktion zur Ueberpruefung ob Dateien existieren
+function Test-Dependencies {
+    $agentCtlPath = "C:\Program Files (x86)\checkmk\service\cmk-agent-ctl.exe"
+    $updaterPath = "C:\Program Files (x86)\checkmk\service\check_mk_agent.exe"
+   
+    $missingDeps = 0
+   
+    if (-not (Test-Path $agentCtlPath)) {
+        Write-ErrorMsg "cmk-agent-ctl.exe nicht gefunden: $agentCtlPath"
+        $missingDeps++
+    }
+   
+    if (-not (Test-Path $updaterPath)) {
+        Write-ErrorMsg "check_mk_agent.exe nicht gefunden: $updaterPath"
+        $missingDeps++
+    }
+   
+    if ($missingDeps -gt 0) {
+        Write-ErrorMsg "Bitte installieren Sie den CheckMK Agent"
+        exit 1
+    }
+   
+    return $true
+}
+
+
+# Funktion zur Eingabevalidierung
+function Get-ValidatedInput {
+    param(
+        [string]$Prompt,
+        [switch]$IsSecure,
+        [string]$DefaultValue = ""
+    )
+   
+    while ($true) {
+        if ($IsSecure) {
+            $value = Read-Host -AsSecureString $Prompt
+            $plainValue = [Runtime.InteropServices.Marshal]::PtrToStringAuto(
+                [Runtime.InteropServices.Marshal]::SecureStringToBSTR($value)
+            )
+        } else {
+            if ($DefaultValue) {
+                $value = Read-Host "$Prompt [$DefaultValue]"
+                if ([string]::IsNullOrWhiteSpace($value)) {
+                    $plainValue = $DefaultValue
+                } else {
+                    $plainValue = $value
+                }
+            } else {
+                $value = Read-Host $Prompt
+                $plainValue = $value
+            }
+        }
+       
+        if (-not [string]::IsNullOrWhiteSpace($plainValue)) {
+            return $plainValue
+        }
+       
+        Write-ErrorMsg "Eingabe darf nicht leer sein"
+    }
+}
+
+
+# Funktion zum Suchen des Hosts in CheckMK via API (fest ueber monitoring.gc-gruppe.net)
+function Get-CheckMKHostname {
+    param(
+        [string]$Site,
+        [string]$Username,
+        [string]$Password,
+        [string]$SearchHostname
+    )
+   
+    try {
+        Write-Info "Suche Host in CheckMK (via $API_SERVER)..."
+       
+        # TLS 1.2 erzwingen
+        [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+       
+        # Automation User Format: "username password" als Bearer Token
+        $authString = "$Username $Password"
+       
+        $headers = @{
+            "Authorization" = "Bearer $authString"
+            "Accept" = "application/json"
+        }
+       
+        $url = "https://$API_SERVER/$Site/check_mk/api/1.0/domain-types/host_config/collections/all"
+       
+        $response = Invoke-RestMethod -Uri $url -Headers $headers -Method Get -ErrorAction Stop
+       
+        # Suche nach dem Host (case-insensitive)
+        $searchLower = $SearchHostname.ToLower()
+       
+        if ($response.value) {
+            foreach ($hostItem in $response.value) {
+                if ($hostItem.id.ToLower() -eq $searchLower) {
+                    Write-Success "Host gefunden in CheckMK: $($hostItem.id)"
+                    return $hostItem.id
+                }
+            }
+        }
+       
+        Write-Warning "Host '$SearchHostname' nicht in CheckMK gefunden"
+        return $null
+       
+    } catch {
+        Write-Warning "Konnte nicht auf CheckMK API zugreifen ($API_SERVER)"
+        Write-Info "Fehler: $($_.Exception.Message)"
+        return $null
+    }
+}
+
+
+# Header anzeigen
+Clear-Host
+Write-Header
+
+
+# Abhaengigkeiten pruefen
+Write-Info "Pruefe Systemvoraussetzungen..."
+Test-Dependencies | Out-Null
+Write-Success "Alle benoetigten Dateien gefunden"
+
+
+# Benutzereingaben sammeln
+Write-SectionHeader "Schritt 1: Server-Informationen"
+
+
+$server = Get-ValidatedInput -Prompt "Server"
+$site = Get-ValidatedInput -Prompt "Site"
+
+
+Write-SectionHeader "Schritt 2: Anmeldedaten"
+
+
+$username = Get-ValidatedInput -Prompt "Benutzername"
+$passwordPlain = Get-ValidatedInput -Prompt "Passwort" -IsSecure
+
+
+Write-SectionHeader "Schritt 3: Hostname"
+
+
+$defaultHostname = "$env:COMPUTERNAME.ad.ghnit.net".ToLower()
+$hostname = Get-ValidatedInput -Prompt "Hostname" -DefaultValue $defaultHostname
+
+
+# Versuche den Host in CheckMK zu finden (API-Call ueber monitoring.gc-gruppe.net)
+Write-Host ""
+$checkmkHostname = Get-CheckMKHostname -Site $site -Username $username -Password $passwordPlain -SearchHostname $hostname
+
+
+if ($checkmkHostname) {
+    # Host in CheckMK gefunden - verwende exakte Schreibweise
+    $hostname = $checkmkHostname
+} else {
+    # Host nicht gefunden - verwende Kleinschreibung als Fallback
+    $hostname = $hostname.ToLower()
+    Write-Warning "Verwende Fallback-Hostname: $hostname"
+    Write-Host ""
+    $continue = Read-Host "Trotzdem fortfahren? (j/n)"
+    if ($continue -notmatch "^[jJ]$") {
+        Write-Warning "Abbruch durch Benutzer"
+        exit 0
+    }
+}
+
+
+# Zusammenfassung anzeigen
+Write-SectionHeader "Zusammenfassung"
+
+
+Write-Host "Server:    " -NoNewline
+Write-Host "$server" -ForegroundColor Green
+Write-Host "Site:      " -NoNewline
+Write-Host "$site" -ForegroundColor Green
+Write-Host "Username:  " -NoNewline
+Write-Host "$username" -ForegroundColor Green
+Write-Host "Hostname:  " -NoNewline
+Write-Host "$hostname" -ForegroundColor Green
+Write-Host "API-Server:" -NoNewline
+Write-Host " $API_SERVER" -ForegroundColor Cyan
+Write-Host ""
+
+
+$confirm = Read-Host "Fortfahren? (j/n)"
+if ($confirm -notmatch "^[jJ]$") {
+    Write-Warning "Abbruch durch Benutzer"
+    exit 0
+}
+
+
+# TLS-Registrierung durchfuehren
+Write-SectionHeader "Schritt 4: TLS-Registrierung"
+Write-Info "Registriere Agent mit TLS..."
+
+
+$cmdPathAgentCtl = "C:\Program Files (x86)\checkmk\service\cmk-agent-ctl.exe"
+$cmdArgsAgentCtl = @(
+    "register",
+    "--trust-cert",
+    "--hostname", $hostname,
+    "--server", $server,
+    "--site", $site,
+    "--user", $username,
+    "--password", $passwordPlain
+)
+
+
+try {
+    $output = & $cmdPathAgentCtl @cmdArgsAgentCtl 2>&1
+    if ($LASTEXITCODE -eq 0) {
+        Write-Success "TLS-Registrierung erfolgreich abgeschlossen"
+    } else {
+        Write-ErrorMsg "TLS-Registrierung fehlgeschlagen (Exit-Code: $LASTEXITCODE)"
+        Write-Host ""
+        Write-Host "Fehlermeldung:" -ForegroundColor Yellow
+        Write-Host $output -ForegroundColor Yellow
+        Write-Host ""
+        exit 1
+    }
+} catch {
+    Write-ErrorMsg "Fehler bei der TLS-Registrierung: $_"
+    exit 1
+}
+
+
+# Updater registrieren
+Write-SectionHeader "Schritt 5: Updater-Registrierung"
+Write-Info "Registriere Agent-Updater..."
+
+
+$cmdPathUpdater = "C:\Program Files (x86)\checkmk\service\check_mk_agent.exe"
+$cmdArgsUpdater = @(
+    "updater",
+    "register",
+    "--hostname", $hostname,
+    "--server", $server,
+    "--site", $site,
+    "--user", $username,
+    "--password", $passwordPlain
+)
+
+
+try {
+    $output = & $cmdPathUpdater @cmdArgsUpdater 2>&1
+    if ($LASTEXITCODE -eq 0) {
+        Write-Success "Updater-Registrierung erfolgreich abgeschlossen"
+    } else {
+        Write-ErrorMsg "Updater-Registrierung fehlgeschlagen (Exit-Code: $LASTEXITCODE)"
+        Write-Host ""
+        Write-Host "Fehlermeldung:" -ForegroundColor Yellow
+        Write-Host $output -ForegroundColor Yellow
+        Write-Host ""
+        exit 1
+    }
+} catch {
+    Write-ErrorMsg "Fehler bei der Updater-Registrierung: $_"
+    exit 1
+}
+
+
+# Erfolgsmeldung
+Write-Host ""
+Write-Host "============================================================" -ForegroundColor Green
+Write-Host "  Registrierung erfolgreich abgeschlossen!               " -ForegroundColor Green
+Write-Host "============================================================" -ForegroundColor Green
+Write-Host ""
+Write-Info "Der CheckMK Agent ist nun registriert und einsatzbereit"
+Write-Host ""
+
+
+# Warten auf Benutzereingabe vor dem Schliessen
+Read-Host "Druecken Sie Enter zum Beenden"
+exit 0
\ No newline at end of file