Add support for IPv6 ban list.

ip6t-firewall-server.conf.sample

@@ -778,6 +778,34 @@ echo_skipped() {
    echo -e "\033[75G[ \033[33m\033[1mskipped\033[m ]"
 }
 
+
+fatal (){
+   echo ""
+   echo -e "fatal Error: $*"
+   echo ""
+   echo -e "\t\033[31m\033[1mScript will be interrupted..\033[m\033[m"
+   echo ""
+   exit 1
+}
+
+error(){
+   echo ""
+   echo -e "\t[ \033[31m\033[1mFehler\033[m ]: $*"
+   echo ""
+}
+
+warn (){
+   echo ""
+   echo -e "\t[ \033[33m\033[1mWarning\033[m ]: $*"
+   echo ""
+}
+
+info (){
+   echo ""
+   echo -e "\t[ \033[32m\033[1mInfo\033[m ]: $*"
+   echo ""
+}
+
 ## - Check if a given array (parameter 2) contains a given string (parameter 1)
 ## -
 containsElement () {