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wantonin

Unable to add forward map from bobpc.geovar.lan to 10.1.1.30 : not fou

Bonjour
Impossibilité de faire du dynamic dns update par dhcp.
Je réalise des tests en labo, l'objectif étant de prévoir une migration vers samba 4.
J'ai  un server Ubuntu trusty 14.04 et un desktop Ubuntu 12.04. Lors de la mise à jour du dns, j'ai le message unable to add  forward map from billpc.geovar.lan  to 10.1.130 :not found
j'ai installé  samba(4.1.6), ntp, cups, bind9, isc-dhcp-server.
Dans dhcpd.conf je fais appel un script pour faire la mise à jour automatique du dns.
Quand j'exécute le script manuellement avec l'utilisateur dhcp la mise à jour ce fait. Par contre quand la mise à jour  doit se  lancer  automatiquement  j'ai  le message "Unable to add forward map from bobpc.geovar.lan to 10.1.1.30 : not found".
J'ai mis en disable usr.sbin.dhcpd et usr.sbin.named, qulequ'un aurait une piste?
J'ai rajouté dans dhcpd.conf :
on commit {
    set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
    set ClientName = pick-first-value(option host-name, host-decl-name);
    execute("/etc/dhcp/update.sh", "add", ClientIP, ClientName);
  }
  on release {
    set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
    set ClientName = pick-first-value(option host-name, host-decl-name);
    execute("/etc/dhcp/update.sh", "delete", ClientIP, ClientName);
  }
    on expiry {
    set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
    set ClientName = pick-first-value(option host-name, host-decl-name);
    execute("/etc/dhcp/update.sh", "delete", ClientIP, ClientName);
}
Le script update.sh :
#!/bin/bash
# Begin /etc/dhcpd/update.sh
set -x
# Variables
KRB5CC=/tmp/krb5cc_`id -u`
KEYTAB=/etc/dhcp/dhcpd.keytab
DOMAIN=geovar.lan
REALM=GEOVAR.LAN
PRINCIPAL=dhcp@${REALM}
NAMESERVER=pdc1.${DOMAIN}
ZONE=${DOMAIN}
ACTION=$1
IP=$2
HNAME=$3
export KRB5CC KEYTAB DOMAIN REALM PRINCIPAL NAMESERVER ZONE ACTION IP HNAME
/etc/dhcp/dnsupdate.sh -m &
# End /etc/dhcpd/update.sh
Le script dnsupdate.sh :
set -x
sleep 5
# Disassemble IP for reverse lookups
OCT1=$(echo $IP | cut -d . -f 1)
OCT2=$(echo $IP | cut -d . -f 2)
OCT3=$(echo $IP | cut -d . -f 3)
OCT4=$(echo $IP | cut -d . -f 4)
RZONE="$OCT3.$OCT2.$OCT1.in-addr.arpa"

kerberos_creds() {
  export KRB5_KTNAME="$KEYTAB"
  kinit -k -t "$KEYTAB"  "$PRINCIPAL" || { logger -s -p daemon.error -t dhcpd kinit for dynamic DNS failed; exit 11; }
  klist
}
add_host(){
    logger -s -p daemon.info -t dhcpd -- [add_host] Adding A record for host $HNAME with IP $IP to zone $ZONE on server $NAMESERVER
    logger -s -p daemon.info -t dhcpd -- [add_host] samba-tool dns add $NAMESERVER $ZONE $HNAME A $IP -k yes
    samba-tool dns add $NAMESERVER $ZONE $HNAME A $IP -k yes ${DEBUG}
    host -t A $HNAME >/dev/null
    if [ "${?}" != 0 ]; then
      logger -s -p daemon.error -t dhcpd -- [add_host] Failed adding A record for host $HNAME with IP $IP to zone $ZONE on server $NAMESERVER
    fi
}
delete_host(){
    logger -s -p daemon.info -t dhcpd -- [delete_host] Removing A record for host $HNAME with IP $IP from zone $ZONE on server $NAMESERVER
    logger -s -p daemon.info -t dhcpd -- [delete_host] samba-tool dns delete $NAMESERVER $ZONE $HNAME A $IP -k yes
    samba-tool dns delete $NAMESERVER $ZONE $HNAME A $IP -k yes ${DEBUG}
    host -t A $HNAME >/dev/null
    if [ "${?}" == 0 ]; then
      logger -s -p daemon.error -t dhcpd -- [delete_host] Failed removing A record for host $HNAME with IP $IP from zone $ZONE on server $NAMESERVER
    fi
}
update_host(){
    CURIP=$(host -t A $HNAME | cut -d " " -f 4)
    logger -s -p daemon.info -t dhcpd -- [update_host] Removing A record for host $HNAME with IP $CURIP from zone $ZONE on server $NAMESERVER
    logger -s -p daemon.info -t dhcpd -- [update_host] samba-tool dns delete $NAMESERVER $ZONE $HNAME A $CURIP -k yes
    samba-tool dns delete $NAMESERVER $ZONE $HNAME A $CURIP -k yes ${DEBUG}
    host -t A $HNAME >/dev/null
    if [ "${?}" == 0 ]; then
      logger -s -p daemon.error -t dhcpd -- [update_host] Failed removing A record for host $HNAME with IP $CURIP from zone $ZONE on server $NAMESERVER
    fi
    add_host
}
add_ptr(){
    logger -s -p daemon.info -t dhcpd -- [add_ptr] Adding PTR record $OCT4 with hostname $HNAME to zone $RZONE on server $NAMESERVER
    logger -s -p daemon.info -t dhcpd -- [add_ptr] samba-tool dns add $NAMESERVER $RZONE $OCT4 PTR $HNAME.$DOMAIN -k yes
    samba-tool dns add $NAMESERVER $RZONE $OCT4 PTR $HNAME.$DOMAIN -k yes ${DEBUG}
    host -t PTR $IP >/dev/null
    if [ "${?}" != 0 ]; then
      logger -s -p daemon.error -t dhcpd -- [add_ptr] Failed adding PTR record $OCT4 with hostname $HNAME to zone $RZONE on server $NAMESERVER
    fi
}
delete_ptr(){
    logger -s -p daemon.info -t dhcpd -- [delete_ptr] Removing PTR record $OCT4 with hostname $HNAME from zone $RZONE on server $NAMESERVER
    logger -s -p daemon.info -t dhcpd -- [delete_ptr] samba-tool dns delete $NAMESERVER $RZONE $OCT4 PTR $HNAME.$DOMAIN -k yes
    samba-tool dns delete $NAMESERVER $RZONE $OCT4 PTR $HNAME.$DOMAIN -k yes ${DEBUG}
    host -t PTR $IP >/dev/null
    if [ "${?}" == 0 ]; then
      logger -s -p daemon.error -t dhcpd -- [delete_ptr] Failed removing PTR record $OCT4 with hostname $HNAME to zone $RZONE on server $NAMESERVER
    fi
}
update_ptr(){
    CURHNAME=$(host -t PTR $IP | cut -d " " -f 5)
    logger -s -p daemon.info -t dhcpd -- [update_ptr] Removing PTR record $OCT4 with hostname $CURHNAME from zone $RZONE on server $NAMESERVER
    logger -s -p daemon.info -t dhcpd -- [update_ptr] samba-tool dns delete $NAMESERVER $RZONE $OCT4 PTR $CURHNAME -k yes
    samba-tool dns delete $NAMESERVER $RZONE $OCT4 PTR $CURHNAME -k yes ${DEBUG}
    host -t PTR $IP >/dev/null
    if [ "${?}" == 0 ]; then
      logger -s -p daemon.error -t dhcpd -- [update_ptr] Failed removing PTR record $OCT4 with hostname $CURHNAME to zone $RZONE on server $NAMESERVER
    fi
    add_ptr
}
case "$ACTION" in
    add)
        kerberos_creds
        host -t A $HNAME.$DOMAIN > /dev/null
        if [ "${?}" == 0 ]; then
            update_host
        else
            add_host
        fi
         host -t PTR $IP > /dev/null
        if [ "${?}" == 0 ]; then
            update_ptr
        else
            add_ptr
        fi
    ;;
   del|delete)
        kerberos_creds
        host -t A $HNAME.$DOMAIN > /dev/null
        if [ "${?}" == 0 ]; then
            delete_host
        fi
   host -t PTR $IP > /dev/null
        if [ "${?}" == 0 ]; then
            delete_ptr
        fi
    ;;
    *)
        echo "Error: Invalid action '$ACTION'!" && exit 12
    ;;
esac
# End samba-dnsupdate.sh
Fgdsg
Fuyu

Pouvez-vous me donner une piste, svp.