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 -s 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 echo "Found objectGUID $OBJECTGUID"
  22
  23 echo "Running kinit for $HOSTNAME\$@$DOMAIN"
  24 bin/samba4kinit -e arcfour-hmac-md5 -k -t "$PRIVATEDIR/secrets.keytab" $HOSTNAME\$@$DOMAIN || exit 1
  25 echo "Adding $HOSTNAME.$DOMAIN"
  26 scripting/bin/nsupdate-gss --noverify $HOSTNAME $DOMAIN $IP 300 || {
  27     echo "Failed to add A record"
  28     exit 1
  29 }
  30 echo "Adding $OBJECTGUID._msdcs.$DOMAIN => $HOSTNAME.$DOMAIN"
  31 scripting/bin/nsupdate-gss --realm=$DOMAIN --noverify --ntype="CNAME" $OBJECTGUID _msdcs.$DOMAIN $HOSTNAME.$DOMAIN 300 || {
  32     echo "Failed to add CNAME"
  33     exit 1
  34 }
  35 echo "Checking"
  36 rndc flush
  37 host $HOSTNAME.$DOMAIN
  38 host $OBJECTGUID._msdcs.$DOMAIN