#!/bin/bash
#
#	Script de configuration DNS
#
###############
#  FONCTIONS  #
###############
#
####   FUNC MASTER   ####
function mastercf () {
echo "Nom de domaine a configurer ? (domain.com)"
read DOMAIN
echo "Adresse IP du serveur maitre :"
read IPNS1
echo "Adresse IP du serveur slave :(laisser vide si pas de slave)"
read IPNS2
echo ""
#CREATE DB
touch /etc/bind/db.$DOMAIN
db=/etc/bind/db.$DOMAIN
echo "\$TTL 604800" >> $db
echo "@     IN     SOA     $DOMAIN.     root.$DOMAIN. (" >> $db
echo "                          1    ; Serial" >> $db
echo "                     604800    ; Refresh" >> $db
echo "                      86400    ; Retry" >> $db
echo "                    2419200    ; Expire" >> $db
echo "                     604800 )  ; Negative Cache TTL" >> $db
echo "" >> $db
echo "      IN     NS      ns1.$DOMAIN." >> $db
if [ "$IPNS2" = "" ]
then 
  echo "" >> $db
else
  echo "      IN     NS      ns2.$DOMAIN." >> $db
  echo "" >> $db
fi
echo "ns1      IN     A       $IPNS1" >> $db
if [ "$IPNS2" = "" ]
then
  echo "" >> $db
else
  echo "ns2      IN     A       $IPNS2" >> $db
  echo "" >> $db
fi
echo "*Creation du fichier de zone*                        [OK]"
echo "emplacement du fichier de zone : $db"
#EDIT named.conf
#touch /root/dev/named.conf #A SUPPRIMER !!!!
cf=/etc/bind/named.conf
echo "" >> $cf
echo "zone \"$DOMAIN\" {" >> $cf
echo "        type master;" >> $cf
echo "        file \"/etc/bind/db.$DOMAIN\";" >> $cf
if [ "$IPNS2" = "" ]
then
  echo "};" >> $cf
else
  echo "        allow-transfer {$IPNS2;};" >> $cf
  echo "};" >> $cf
fi
echo "*Declaration de la zone dans /etc/bind/named.conf*   [OK]"
echo "*Restart de Bind*"              a decommenter
/etc/init.d/bind9 restart             
menu
}
####   FUNC SLAVE   ####
function slavecf () {
echo "Nom de domaine a configurer ? (domain.com)"
read DOMAIN
echo "Adresse IP du serveur maitre :"
read IPNS1
#EDIT named.conf
#touch /root/dev/named.conf #A SUPPRIMER !!!!
cf=/etc/bind/named.conf    #
echo "" >> $cf
echo "zone \"$DOMAIN\" {" >> $cf
echo "        type slave;" >> $cf
echo "        file \"db.$DOMAIN\";" >> $cf
echo "        masters {$IPNS1;};" >> $cf
echo "        allow-notify {$IPNS1;};" >> $cf
echo "};" >> $cf
echo ""
echo "*Declaration de la zone dans /etc/bind/named.conf*   [OK]"
echo "*Restart de Bind*" #A decommenter
/etc/init.d/bind9 restart
menu
}
####   FUNC AJOUT NS   ####
function ns () {
echo "Nom du serveur DNS : (FQDN appartenant au domaine)"
read NS
echo "Adresse IP du serveur DNS :"
read IPNS
# EDIT DB
#touch /root/dev/db.$DOMAIN # A SUPPRIMER !!!!
db=/etc/bind/db.$DOMAIN    #
echo "" >> $db
echo "@       IN       NS       $NS." >> $db
echo "$NS.      IN       A        $IPNS" >> $db
echo ""
echo "*Modification de $db*"
echo "*Restart de bind9*"
/etc/init.d/bind9 restart
menu
}
####   FUNC AJOUT MX    ####
function mx () {
echo "Nom du serveur mail : (FQDN appartenant au domaine)"
read MX
echo "Adresse IP du serveur mail :"
read IPMX
#EDIT DB
#touch /root/dev/db.$DOMAIN # A SUPPRIMER !!!!
db=/etc/bind/db.$DOMAIN    #
echo "" >> $db
echo "@       IN       MX      10      $MX." >> $db
echo "$MX.      IN       A       $IPMX" >> $db
echo ""
echo "*Modification de $db*"
echo "*Restart de bind9*"
/etc/init.d/bind9 restart
menu
}
####   FUNC AJOUT A   ####
function a () {
echo "Nom de domaine a associer a une @IPv4 : (FQDN appartenant au domaine)"
read A
echo "Adresse IP a associer au nom de domaine :"
read IPA
#EDIT DB
#touch /root/dev/db.$DOMAIN # A SUPPRIMER !!!!
db=/etc/bind/db.$DOMAIN    #
echo "" >> $db
echo "$A.      IN       A       $IPA" >> $db
echo ""
echo "*Modification de $db*"
echo "*Restart de bind9*"
/etc/init.d/bind9 restart
menu
}
####   FUNC AJOUT AAAA ####
function aaaa () {
echo "Nom de domaine a associer a une @IPv6 : (FQDN appartenant au domaine)"
read AAAA
echo "Adresse IPv6 a associer au nom de domaine :"
read IPAAAA
#EDIT DB
#touch /root/dev/db.$DOMAIN # A SUPPRIMER !!!!
db=/etc/bind/db.$DOMAIN    #
echo "" >> $db
echo "$AAAA.      IN       A       $IPAAAA" >> $db
echo ""
echo "*Modification de $db*"
echo "*Restart de bind9*"
/etc/init.d/bind9 restart
menu
}
####   FUNC AJOUT CNAME   ####
function cname () {
echo "Nom de domaine a rediriger : (FQDN appartenant au domaine)"
read NOM1
echo "Rediriger le nom vers : (FQDN appartenant au domaine)"
read NOM2
#EDIT DB
#touch /root/dev/db.$DOMAIN # A SUPPRIMER !!!!
db=/etc/bind/db.$DOMAIN    #
echo "" >> $db
echo "$NOM1.      IN       CNAME      $NOM2." >> $db
echo ""
echo "*Modification de $db*"
echo "*Restart de bind9*"
/etc/init.d/bind9 restart
menu
}
####   FUNC MENU AJOUT   ####
function ajout () {
echo "Nom de domaine a configurer ? (domain.com)"
read DOMAIN
echo ""
echo "Type d'enregistrement a ajouter ?"
echo "1.NS"
echo "2.MX"
echo "3.A"
echo "4.AAAA"
echo "5.CNAME"
echo "6.Retour au menu"
echo ""
echo "Choix :"
read CHOIX
echo ""
case $CHOIX in
  1)ns;;
  2)mx;;
  3)a;;
  4)aaaa;;
  5)cname;;
  6)menu;;
esac
}
####   FUNC MENU   ####
function menu () {
echo ""
echo "************************************************"
echo "*        Menu du script de gestion DNS         *"
echo "************************************************"
echo ""
echo "1.Configuration serveur primaire"
echo "2.Configuration serveur secondaire"
echo "3.Ajout d'enregistrement"
echo "4.Menu Principal"
echo "5.Quitter"
echo ""
echo "Choix :"
read CHOIX
echo ""
case $CHOIX in
  1)mastercf;;
  2)slavecf;;
  3)ajout;;
  4)./script_menup;;
  5)exit 0;;
  *)echo "Il faut faire un choix !"
    menu;;
esac
}
menu