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https://github.com/samba-team/samba.git
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108 lines
3.0 KiB
Bash
Executable File
108 lines
3.0 KiB
Bash
Executable File
#!/bin/sh
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# rebuild a zone file, adding all DCs
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[ $# -eq 2 ] || {
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echo "rebuild_zone.sh <sam.ldb> <zonefile>"
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exit 1
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}
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LDB="$1"
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ZFILE="$2"
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dnshostname=$(bin/ldbsearch -H $LDB -s base -b '' dnsHostname | grep ^dns | cut -d' ' -f2)
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host=$(echo $dnshostname | cut -d. -f1)
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realm=$(echo $dnshostname | cut -d. -f2-)
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GUIDs=$(bin/ldbsearch -H $LDB objectclass=ntdsdsa objectguid --cross-ncs|grep ^objectGUID| cut -d' ' -f2)
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DOMAINGUID=$(bin/ldbsearch -H $LDB -s base objectguid |grep ^objectGUID| cut -d' ' -f2)
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dcname() {
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GUID=$1
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echo $(bin/ldbsearch -H $LDB objectguid=$GUID dn --cross-ncs|grep CN=NTDS.Settings| cut -d, -f2| cut -d= -f2)
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}
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getip() {
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NAME=$1
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ret=$(nmblookup $NAME| egrep '^[0-9]' | head -1 | cut -d' ' -f1)
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test -n "$ret" || {
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echo "Unable to find IP for $NAME. Using XX.XX.XX.XX. Please edit" 1>&2
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echo "XX.XX.XX.XX"
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}
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echo $ret
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}
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echo "Generating header for host $host in realm $realm"
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cat <<EOF > $ZFILE
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; -*- zone -*-
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; generated by rebuild_zone.sh
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\$ORIGIN $realm.
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\$TTL 1W
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@ IN SOA @ hostmaster (
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$(date +%Y%m%d%H) ; serial
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2D ; refresh
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4H ; retry
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6W ; expiry
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1W ) ; minimum
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IN NS $host
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EOF
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for GUID in $GUIDs; do
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dc=$(dcname $GUID)
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echo "Generating IP for DC $dc"
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ip=$(getip $dc)
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test -n "$ip" || exit 1
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echo " IN A $ip" >> $ZFILE
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done
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echo "; IP Addresses" >> $ZFILE
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for GUID in $GUIDs; do
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dc=$(dcname $GUID)
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ip=$(getip $dc)
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test -n "$ip" || exit 1
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echo "$dc IN A $ip" >> $ZFILE
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done
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for GUID in $GUIDs; do
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dc=$(dcname $GUID)
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ip=$(getip $dc)
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test -n "$ip" || exit 1
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echo "Generating zone body for DC $dc with IP $ip"
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cat <<EOF >> $ZFILE
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;
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; Entries for $dc
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gc._msdcs IN A $ip
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$GUID._msdcs IN CNAME $dc
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_gc._tcp IN SRV 0 100 3268 $dc
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_gc._tcp.Default-First-Site-Name._sites IN SRV 0 100 3268 $dc
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_ldap._tcp.gc._msdcs IN SRV 0 100 389 $dc
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_ldap._tcp.Default-First-Site-Name._sites.gc._msdcs IN SRV 0 100 389 $dc
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_ldap._tcp IN SRV 0 100 389 $dc
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_ldap._tcp.dc._msdcs IN SRV 0 100 389 $dc
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_ldap._tcp.pdc._msdcs IN SRV 0 100 389 $dc
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_ldap._tcp.$DOMAINGUID.domains._msdcs IN SRV 0 100 389 $dc
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_ldap._tcp.Default-First-Site-Name._sites IN SRV 0 100 389 $dc
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_ldap._tcp.Default-First-Site-Name._sites.dc._msdcs IN SRV 0 100 389 $dc
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_kerberos._tcp IN SRV 0 100 88 $dc
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_kerberos._tcp.dc._msdcs IN SRV 0 100 88 $dc
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_kerberos._tcp.Default-First-Site-Name._sites IN SRV 0 100 88 $dc
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_kerberos._tcp.Default-First-Site-Name._sites.dc._msdcs IN SRV 0 100 88 $dc
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_kerberos._udp IN SRV 0 100 88 $dc
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_kerberos-master._tcp IN SRV 0 100 88 $dc
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_kerberos-master._udp IN SRV 0 100 88 $dc
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_kpasswd._tcp IN SRV 0 100 464 $dc
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_kpasswd._udp IN SRV 0 100 464 $dc
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EOF
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done
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cat <<EOF >> $ZFILE
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; kerberos hack
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_kerberos IN TXT $(echo $realm | tr [a-z] [A-Z])
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EOF
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echo "Rebuilt zone file $ZFILE OK"
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echo "Reloading bind config"
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PATH="/usr/sbin:$PATH" rndc reload
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exit 0
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