Feature: Multi-Distro Firewall-Support für HomeIP Updater
Improvement: - homeip-updater.sh: Firewall-Autodetection (ufw/firewalld/iptables) - README-HOMEIP.md: Firewall-Support Tabelle + technische Details - install.sh: dnsutils zu apt-Paketen hinzugefügt Multi-Distro kompatibel: ✅ Ubuntu/Debian (ufw) ✅ Fedora/RHEL (firewalld) ✅ Arch/Manjaro (iptables) ✅ openSUSE (firewalld) Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
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@@ -3,6 +3,7 @@
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# 🐠 Clownfischserver HomeIP Updater
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# Version: v0.5.0
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# Purpose: Automatisch die Home-IP aktualisieren (alle 5 Min via Cron)
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# Multi-Distro: ufw (Ubuntu/Debian), firewalld (Fedora/openSUSE), iptables (Arch)
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# Author: Mehlzoerwer-Claude
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# License: GPL-3.0
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# =============================================================================
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@@ -22,6 +23,22 @@ log_error() {
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] ERROR: $*" >> "$LOG_FILE"
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}
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# Erkenne welche Firewall aktiv ist
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detect_firewall() {
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if systemctl is-active --quiet ufw 2>/dev/null; then
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echo "ufw"
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elif systemctl is-active --quiet firewalld 2>/dev/null; then
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echo "firewalld"
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elif command -v iptables &>/dev/null; then
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echo "iptables"
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else
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echo "unknown"
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fi
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}
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FIREWALL=$(detect_firewall)
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log "Firewall erkannt: $FIREWALL"
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# Prüfe ob .env existiert
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if [[ ! -f "$ENV_FILE" ]]; then
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log_error ".env nicht gefunden: $ENV_FILE"
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@@ -71,29 +88,81 @@ if [[ "$NEW_IP" == "$OLD_IP" ]] && [[ -n "$OLD_IP" ]]; then
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fi
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# IP hat sich geändert oder ist neue Installation
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log "IP-Änderung erkannt! Updating ufw rules..."
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log "IP-Änderung erkannt! Aktualisiere Firewall-Regeln..."
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# Entferne alte Regel falls vorhanden (mit y bestätigen für Cron)
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if [[ -n "$OLD_IP" ]]; then
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# Prüfe ob Regel existiert
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if ufw status numbered | grep -qE "22.*ALLOW.*FROM\s+$OLD_IP"; then
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# Löschen mit 'y' autom. bestätigen
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echo "y" | ufw delete allow from "$OLD_IP" to any port 22 >> "$LOG_FILE" 2>&1
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log "Alte Regel entfernt: allow from $OLD_IP to port 22"
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# Firewall-spezifische Funktionen
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remove_ufw_rule() {
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if ufw status numbered | grep -qE "22.*ALLOW.*FROM\s+$1"; then
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echo "y" | ufw delete allow from "$1" to any port 22 >> "$LOG_FILE" 2>&1
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log "UFW: Alte Regel entfernt: allow from $1 to port 22"
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fi
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}
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add_ufw_rule() {
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ufw allow from "$1" to any port 22 comment "clownfischserver-homeip-$MYFRITZ_DOMAIN" >> "$LOG_FILE" 2>&1
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log "UFW: Neue Regel hinzugefügt: allow from $1 to port 22"
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}
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remove_firewalld_rule() {
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firewall-cmd --permanent --remove-rich-rule="rule family='ipv4' source address='$1' port protocol='tcp' port='22' accept" >> "$LOG_FILE" 2>&1
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log "firewalld: Alte Regel entfernt: source address $1 port 22"
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}
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add_firewalld_rule() {
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firewall-cmd --permanent --add-rich-rule="rule family='ipv4' source address='$1' port protocol='tcp' port='22' accept" >> "$LOG_FILE" 2>&1
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firewall-cmd --reload >> "$LOG_FILE" 2>&1
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log "firewalld: Neue Regel hinzugefügt: source address $1 port 22"
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}
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remove_iptables_rule() {
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iptables -D INPUT -s "$1" -p tcp --dport 22 -j ACCEPT 2>> "$LOG_FILE" || true
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log "iptables: Alte Regel entfernt: source $1 port 22"
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}
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add_iptables_rule() {
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iptables -I INPUT -s "$1" -p tcp --dport 22 -j ACCEPT >> "$LOG_FILE" 2>&1
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log "iptables: Neue Regel hinzugefügt: source $1 port 22"
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}
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# Entferne alte Regel falls vorhanden
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if [[ -n "$OLD_IP" ]]; then
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case "$FIREWALL" in
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ufw) remove_ufw_rule "$OLD_IP" ;;
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firewalld) remove_firewalld_rule "$OLD_IP" ;;
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iptables) remove_iptables_rule "$OLD_IP" ;;
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*) log_error "Unbekannte Firewall: $FIREWALL" && exit 1 ;;
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esac
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fi
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# Füge neue Regel hinzu
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if ufw allow from "$NEW_IP" to any port 22 comment "clownfischserver-homeip-$MYFRITZ_DOMAIN" >> "$LOG_FILE" 2>&1; then
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log "Neue Regel hinzugefügt: allow from $NEW_IP to port 22"
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else
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log_error "ufw Regel konnte nicht hinzugefügt werden"
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exit 1
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fi
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case "$FIREWALL" in
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ufw)
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if ! add_ufw_rule "$NEW_IP"; then
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log_error "UFW: Regel konnte nicht hinzugefügt werden"
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exit 1
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fi
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;;
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firewalld)
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if ! add_firewalld_rule "$NEW_IP"; then
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log_error "firewalld: Regel konnte nicht hinzugefügt werden"
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exit 1
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fi
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;;
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iptables)
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if ! add_iptables_rule "$NEW_IP"; then
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log_error "iptables: Regel konnte nicht hinzugefügt werden"
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exit 1
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fi
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;;
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*)
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log_error "Unbekannte Firewall: $FIREWALL"
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exit 1
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;;
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esac
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# Speichere neue IP
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echo "$NEW_IP" > "$STATE_FILE"
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chmod 644 "$STATE_FILE"
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log "✓ HomeIP Update erfolgreich: $MYFRITZ_DOMAIN → $NEW_IP"
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log "✓ HomeIP Update erfolgreich: $MYFRITZ_DOMAIN → $NEW_IP ($FIREWALL)"
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exit 0
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