source4/scripting/bin/setup_dns.sh

   1 #!/bin/bash
   2 # example script to setup DNS for a vampired domain
   3
   4 [ $# = 3 ] || {
   5         echo "Usage: setup_dns.sh HOSTNAME DOMAIN IP"
   6         exit 1
   7 }
   8
   9 HOSTNAME="$(echo $1 | tr '[a-z]' '[A-Z]')"
  10 DOMAIN="$(echo $2 | tr '[a-z]' '[A-Z]')"
  11 IP="$3"
  12
  13 RSUFFIX=$(echo $DOMAIN | sed s/[\.]/,DC=/g)
  14
  15 [ -z "$PRIVATEDIR" ] && {
  16         PRIVATEDIR=$(bin/samba-tool testparm --section-name=global --parameter-name='private dir' --suppress-prompt 2>/dev/null)
  17 }
  18
  19 OBJECTGUID=$(bin/ldbsearch --scope=base -H "$PRIVATEDIR/sam.ldb" -b "CN=NTDS Settings,CN=$HOSTNAME,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=$RSUFFIX" objectguid | grep ^objectGUID | cut -d: -f2)
  20
  21 samba4kinit=kinit
  22 if test -x $BINDIR/samba4kinit; then
  23         samba4kinit=bin/samba4kinit
  24 fi
  25
  26 echo "Found objectGUID $OBJECTGUID"
  27
  28 echo "Running kinit for $HOSTNAME\$@$DOMAIN"
  29 $samba4kinit -e arcfour-hmac-md5 -k -t "$PRIVATEDIR/secrets.keytab" $HOSTNAME\$@$DOMAIN || exit 1
  30 echo "Adding $HOSTNAME.$DOMAIN"
  31 scripting/bin/nsupdate-gss --noverify $HOSTNAME $DOMAIN $IP 300 || {
  32         echo "Failed to add A record"
  33         exit 1
  34 }
  35 echo "Adding $OBJECTGUID._msdcs.$DOMAIN => $HOSTNAME.$DOMAIN"
  36 scripting/bin/nsupdate-gss --realm=$DOMAIN --noverify --ntype="CNAME" $OBJECTGUID _msdcs.$DOMAIN $HOSTNAME.$DOMAIN 300 || {
  37         echo "Failed to add CNAME"
  38         exit 1
  39 }
  40 echo "Checking"
  41 rndc flush
  42 host $HOSTNAME.$DOMAIN
  43 host $OBJECTGUID._msdcs.$DOMAIN