552 lines
14 KiB
Bash
Executable File
552 lines
14 KiB
Bash
Executable File
#!/usr/bin/env bash
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working_dir="$(dirname $(realpath $0))"
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conf_file="${working_dir}/conf/bind.conf"
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log_file="$(mktemp)"
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backup_date="$(date +%Y-%m-%d-%H%M)"
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#---------------------------------------
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#-----------------------------
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# Base Function(s)
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#-----------------------------
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#---------------------------------------
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usage() {
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echo
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[ -n "$1" ] && echo -e "Error: $1\n"
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cat<<EOF
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Usage: $(basename $0) [Options]
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Script changes nameserver and admin e-mail entry in SOA Records of all
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master zonefiles .
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If running in a terminal and NOT '-q' is used, script acts in
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interactive mode. Script uses defaults either reading from file
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${conf_file}, or if not present, bei hardcoded default settings.
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You will be asked to confirm or override the default setting.
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If not running in a terminal (i.e. used as cronjob) or flag '-q' (and
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within '-d') is set, all configurations are read from file '${conf_file}'.
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Options:
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-h
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Prints this help.
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-q
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Rund in silent mode.
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EOF
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clean_up 1
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}
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clean_up() {
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# Perform program exit housekeeping
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rm $log_file
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exit $1
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}
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echononl(){
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if $terminal && $LOGGING ; then
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echo X\\c > /tmp/shprompt$$
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if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
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echo -e -n "$*\\c" 1>&2
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else
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echo -e -n "$*" 1>&2
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fi
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rm /tmp/shprompt$$
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fi
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}
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fatal(){
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echo ""
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if $terminal ; then
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echo -e "[ \033[31m\033[1mError\033[m ]: $*"
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echo ""
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echo -e "\t\033[31m\033[1mScript was interupted\033[m!"
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else
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echo " [ Fatal ]: $*"
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echo ""
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echo " Script was terminated...."
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fi
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echo ""
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clean_up 1
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}
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info (){
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if $terminal && $LOGGING ; then
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echo ""
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echo -e "\t[ \033[32m\033[1mInfo\033[m ]: $*"
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echo ""
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else
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if $LOGGING ; then
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echo ""
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echo "Info: $*"
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echo ""
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fi
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fi
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}
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warn (){
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echo ""
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if $terminal ; then
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echo -e "\t[ \033[33m\033[1mWarning\033[m ]: $*"
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else
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echo "Warning: $*"
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fi
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echo ""
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}
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error (){
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echo ""
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if $terminal ; then
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echo -e "\t[ \033[31m\033[1mError\033[m ]: $*"
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else
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echo "Error: $*"
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fi
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echo ""
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}
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echo_done() {
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if $terminal && $LOGGING ; then
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echo -e "\033[75G[ \033[32mdone\033[m ]"
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else
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if $LOGGING ; then
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echo " [ done ]"
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fi
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fi
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}
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echo_ok() {
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if $terminal && $LOGGING ; then
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echo -e "\033[75G[ \033[32mok\033[m ]"
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else
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if $LOGGING ; then
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echo " [ ok ]"
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fi
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fi
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}
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echo_failed(){
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if $terminal && $LOGGING ; then
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echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
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else
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if $LOGGING ; then
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echo " [ failed ]"
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fi
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fi
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}
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echo_skipped() {
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if $terminal && $LOGGING ; then
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echo -e "\033[75G[ \033[33m\033[1mskipped\033[m ]"
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else
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if $LOGGING ; then
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echo " [ skipped ]"
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fi
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fi
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}
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trap clean_up SIGHUP SIGINT SIGTERM
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#---------------------------------------
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#-----------------------------
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# Check some prerequisites
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#-----------------------------
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#---------------------------------------
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if [[ -t 1 ]] ; then
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terminal=true
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LOGGING=true
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else
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terminal=false
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LOGGING=false
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fi
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while getopts hq opt ; do
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case $opt in
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q) LOGGING=false
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;;
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h) usage
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;;
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*) usage
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esac
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done
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#---------------------------------------
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#-----------------------------
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# Setting Defaults
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#-----------------------------
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#---------------------------------------
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DEFAULT_CONF_FILE_DIR="/etc/bind"
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DEFAULT_BIND_CACHE_DIR="/var/cache/bind"
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#---------------------------------------
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#-----------------------------
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# Load default values from bind.conf
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#
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# Overwrites the settings above
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#
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#-----------------------------
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#---------------------------------------
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if $LOGGING ; then
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clear
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echo ""
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echo ""
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echononl " Loading default Configuration values from $(basename ${conf_file}).."
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if [[ ! -f "$conf_file" ]]; then
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echo_skipped
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else
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source "${conf_file}" > $log_file 2>&1
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if [[ $? -eq 0 ]]; then
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echo_ok
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else
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echo_failed
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fatal "$(cat $log_file)"
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fi
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fi
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echo ""
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[[ -n "$CONF_FILE_DIR" ]] && DEFAULT_CONF_FILE_DIR="$CONF_FILE_DIR"
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[[ -n "$BIND_CACHE_DIR" ]] && DEFAULT_BIND_CACHE_DIR="$BIND_CACHE_DIR"
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if [[ -n "$ZONE_FILE_MASTER_DIR" ]] ; then
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DEFAULT_ZONE_FILE_MASTER_DIR="$ZONE_FILE_MASTER_DIR"
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else
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DEFAULT_ZONE_FILE_MASTER_DIR="${DEFAULT_CONF_FILE_DIR}/master"
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fi
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if [[ -n "$ZONE_FILE_SLAVE_DIR" ]] ; then
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DEFAULT_ZONE_FILE_SLAVE_DIR="$ZONE_FILE_SLAVE_DIR"
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else
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DEFAULT_ZONE_FILE_SLAVE_DIR="$DEFAULT_BIND_CACHE_DIR"
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fi
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[[ -n "$ZONES_DECLARATION_FILE" ]] && DEFAULT_ZONES_DECLARATION_FILE="$ZONES_DECLARATION_FILE"
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[[ -n "$SOA_PRIMARY_MASTER" ]] && DEFAULT_SOA_PRIMARY_MASTER=$SOA_PRIMARY_MASTER
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[[ -n "$SOA_ADMIN_EMAIL" ]] && DEFAULT_SOA_ADMIN_EMAIL=$SOA_ADMIN_EMAIL
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echo ""
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echo -e "\033[32m--\033[m"
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echo ""
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echo "Insert SOA primary master for all the zones."
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echo ""
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SOA_PRIMARY_MASTER=""
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if [[ -n "$DEFAULT_SOA_PRIMARY_MASTER" ]]; then
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echononl "Primary Master (SOA-Record) [${DEFAULT_SOA_PRIMARY_MASTER}]"
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read SOA_PRIMARY_MASTER
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if [[ "X${SOA_PRIMARY_MASTER}" = "X" ]]; then
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SOA_PRIMARY_MASTER="$DEFAULT_SOA_PRIMARY_MASTER"
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fi
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else
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echononl "Primary Master (SOA-Record): "
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read SOA_PRIMARY_MASTER
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while [ "X$SOA_PRIMARY_MASTER" = "X" ] ; do
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echo -e "\n\t\033[33m\033[1mSetting 'Primary Master' is required!\033[m\n"
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echononl "Primary Master (SOA-Record): "
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read SOA_PRIMARY_MASTER
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done
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fi
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echo ""
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echo -e "\033[32m--\033[m"
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echo ""
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echo "Insert SOA admin e-mail address for all the zones."
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echo ""
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SOA_ADMIN_EMAIL=""
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if [[ -n "$DEFAULT_SOA_ADMIN_EMAIL" ]]; then
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echononl "Admin E-Mail Address (SOA-Record) [${DEFAULT_SOA_ADMIN_EMAIL}]"
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read SOA_ADMIN_EMAIL
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if [[ "X${SOA_ADMIN_EMAIL}" = "X" ]]; then
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SOA_ADMIN_EMAIL="$DEFAULT_SOA_ADMIN_EMAIL"
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fi
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else
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echononl "Admin E-Mail Address (SOA-Record): "
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read SOA_ADMIN_EMAIL
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while [ "X$SOA_ADMIN_EMAIL" = "X" ] ; do
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echo -e "\n\t\033[33m\033[1mSetting 'Admin E-Mail Address' is required!\033[m\n"
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echononl "Admin E-Mail Address (SOA-Record): "
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read SOA_ADMIN_EMAIL
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done
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fi
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echo ""
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echo ""
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echo -e "\033[32m--\033[m"
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echo "Common parameters"
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echo -e "\033[32m--\033[m"
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echo ""
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echo "Insert directory containing the bind configuration files."
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echo ""
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CONF_FILE_DIR=""
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if [[ -n "$DEFAULT_CONF_FILE_DIR" ]] ; then
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echononl "Bind Configuration Directory [${DEFAULT_CONF_FILE_DIR}]: "
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read CONF_FILE_DIR
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if [[ "X$CONF_FILE_DIR" = "X" ]]; then
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CONF_FILE_DIR="$DEFAULT_CONF_FILE_DIR"
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fi
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else
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echononl "Bind Configuration Directory: "
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read CONF_FILE_DIR
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while [ "X$CONF_FILE_DIR" = "X" ] ; do
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echo -e "\n\t\033[33m\033[1mSetting 'Bind Configuration Directory' is required!\033[m\n"
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echononl "Bind Configuration Directory: "
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read CONF_FILE_DIR
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done
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fi
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[[ -n "$ZONES_DECLARATION_FILE" ]] || DEFAULT_ZONES_DECLARATION_FILE="${CONF_FILE_DIR}/named.conf.local"
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[[ -n "$ZONE_FILE_MASTER_DIR" ]] || ZONE_FILE_MASTER_DIR="${CONF_FILE_DIR}/master"
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echo ""
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echo -e "\033[32m--\033[m"
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echo ""
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echo "Insert zones declaration file."
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echo ""
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ZONES_DECLARATION_FILE=""
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if [[ -n "$DEFAULT_ZONES_DECLARATION_FILE" ]] ; then
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echononl "Zones Declaration File [${DEFAULT_ZONES_DECLARATION_FILE}]: "
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read ZONES_DECLARATION_FILE
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if [[ "X$ZONES_DECLARATION_FILE" = "X" ]]; then
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ZONES_DECLARATION_FILE="$DEFAULT_ZONES_DECLARATION_FILE"
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fi
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else
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echononl "Zones Declaration File: "
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read ZONES_DECLARATION_FILE
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while [ "X$ZONES_DECLARATION_FILE" = "X" ] ; do
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echo -e "\n\t\033[33m\033[1mSetting 'Zones Declaration File' is required!\033[m\n"
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echononl "Zones Declaration File: "
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read ZONES_DECLARATION_FILE
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done
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fi
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# - replace '@' character with '.'
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# -
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SOA_ADMIN_EMAIL="${SOA_ADMIN_EMAIL/@/.}"
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echo ""
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echo ""
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echo -e "\033[1;32mSettings for \033[1;37mChange SOA Record\033[m Script"
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echo ""
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echo -e "\tSOA Primary Master..................: $SOA_PRIMARY_MASTER"
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echo -e "\tSOA Admin E-Mail Address............: $SOA_ADMIN_EMAIL"
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echo ""
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echo -e "\tBind Configuration Directory........: $CONF_FILE_DIR"
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echo -e "\tZones Declaration File..............: $ZONES_DECLARATION_FILE"
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echo ""
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info "Repace Primary Master \033[37m\033[1m${SOA_PRIMARY_MASTER}\033[m and Admin E-Mail \033[37m\033[1m${SOA_PRIMARY_MASTER}\033[m in all SOA Records"
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echo -n "To continue type uppercase 'YES': "
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read OK
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echo ""
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if [[ "$OK" != "YES" ]] ; then
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fatal "Abort by user request - Answer as not 'YES'"
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fi
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else # if $LOGGING
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if [[ ! -f "$conf_file" ]]; then
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fatal "Configuration file '$conf_file' not found!"
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else
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echononl " Loading default Configuration values from $(basename ${conf_file}).."
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source "${conf_file}" > $log_file 2>&1
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if [[ $? -eq 0 ]]; then
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echo_ok
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else
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echo_failed
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fatal "$(cat $log_file)"
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fi
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fi
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if [[ -z "$CONF_FILE_DIR" ]]; then
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CONF_FILE_DIR="$DEFAULT_CONF_FILE_DIR"
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fi
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if [[ ! -d "$CONF_FILE_DIR" ]] ; then
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fatal "Directory contaning bind configurations not found (see CONF_FILE_DIR)!"
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fi
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[[ -n "${ZONE_FILE_MASTER_DIR}" ]] || ZONE_FILE_MASTER_DIR="${CONF_FILE_DIR}/master"
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if [[ -z "$ZONES_DECLARATION_FILE" ]] ; then
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ZONES_DECLARATION_FILE="${CONF_FILE_DIR}/named.conf.local"
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fi
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[[ -z "$SOA_ADMIN_EMAIL" ]] && fatal "Missing SOA Admin E-Mail Address (see SOA_ADMIN_EMAIL)"
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[[ -z "$SOA_PRIMARY_MASTER" ]] && fatal "Missing SOA Primary Master (see SOA_PRIMARY_MASTER)"
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# - replace '@' character with '.'
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# -
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SOA_ADMIN_EMAIL="${SOA_ADMIN_EMAIL/@/.}"
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fi
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if [[ ! -f "$ZONES_DECLARATION_FILE" ]]; then
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fatal "Zone declaration file '${ZONES_DECLARATION_FILE}' not found!"
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fi
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declare -a zone_file_arr=()
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_found=false
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_is_master=false
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zone_file=""
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regex_master="type[[:space:]]+master"
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regex_file="^[[:space:]]*file"
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while IFS='' read -r _line || [[ -n $_line ]] ; do
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if [[ $_line =~ ^[[:space:]]*zone[[:space:]]+ ]]; then
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_found=true
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zone="$(echo $_line | awk '{print$2}')"
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shopt -s extglob
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if [[ $zone =~ \; ]]; then
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zone=${zone%%*(\;)}
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fi
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if [[ $zone =~ ^\" ]]; then
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zone=${zone##*(\")}
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zone=${zone%%*(\")}
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fi
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shopt -u extglob
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fi
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if $_found ; then
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if [[ $_line =~ $regex_file ]]; then
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zone_file=$(echo $_line | awk '{print$2}')
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shopt -s extglob
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if [[ $zone_file =~ \; ]]; then
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zone_file=${zone_file%%*(\;)}
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fi
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if [[ $zone_file =~ ^\" ]]; then
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zone_file=${zone_file##*(\")}
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zone_file=${zone_file%%*(\")}
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fi
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shopt -u extglob
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fi
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if [[ $_line =~ $regex_master ]]; then
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_is_master=true
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fi
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if [[ "$_line" =~ ^[[:space:]]*\}[[:space:]]*\; ]]; then
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if $_is_master && [[ -n "$zone_file" ]]; then
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zone_file_arr+=("${zone_file}:$zone")
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fi
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_is_master=false
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_found=false
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zone_file=""
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fi
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fi
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done < "$ZONES_DECLARATION_FILE"
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if [[ -d "$ZONE_FILE_MASTER_DIR" ]] ; then
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echononl "\tBackup directory '${ZONE_FILE_MASTER_DIR}'.."
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cp -a "${ZONE_FILE_MASTER_DIR}" "${ZONE_FILE_MASTER_DIR}.${backup_date}" > $log_file 2>&1
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if [[ $? -eq 0 ]]; then
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echo_ok
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else
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echo_failed
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fatal "$(cat $log_file)"
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fi
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fi
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for _val in "${zone_file_arr[@]}" ; do
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IFS=':' read -a _val_arr <<< "${_val}"
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declare -i _serial_new=`date +%Y%m%d01`
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zone_file="${_val_arr[0]}"
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zone="${_val_arr[1]}"
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if $LOGGING ; then
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echo ""
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echo -e "\tPreparing zone file \033[37m\033[1m${zone_file}\033[m"
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fi
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## - calculate new serial
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## -
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echononl "\tCalculate new serial.."
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declare -i __serial=$(grep -E "^\s*[0-9]{10}\s+;?(serial)?" $zone_file | awk '{print$1}')
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if [[ -z "$__serial" ]]; then
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echo_failed
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continue
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fi
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while [[ ! $_serial_new -gt $__serial ]]; do
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let _serial_new++
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done
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if [[ $? -gt 0 ]]; then
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echo_failed
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else
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echo_ok
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fi
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echononl "\tChanging SOA Record.."
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if ! $(grep -q -E "^.*IN\s+SOA\s+${SOA_PRIMARY_MASTER}\.\s+${SOA_ADMIN_EMAIL}\.\s+\(" $zone_file) ; then
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perl -i -n -p -e "s/^(.*IN\s+SOA).*$/\1 ${SOA_PRIMARY_MASTER}. ${SOA_ADMIN_EMAIL}. \(/" $zone_file
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if [[ $? -gt 0 ]]; then
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echo_failed
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else
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echo_ok
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fi
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else
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echo_skipped
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continue
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fi
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## - Set new serial
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## -
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echononl "\tRenew serial.."
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perl -i -n -p -e "s#^(\s*) $__serial(.*)#\1 $_serial_new\2#" $zone_file
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if [[ $? -gt 0 ]]; then
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echo_failed
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else
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echo_ok
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fi
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## - Reload Zone
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## -
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echononl "\tReload Zone ${zone}.."
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/usr/sbin/rndc reload $zone > /dev/null 2>&1
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if [[ $? -gt 0 ]]; then
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echo_failed
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else
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echo_ok
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fi
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sleep 1
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done
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if [[ -d "${ZONE_FILE_MASTER_DIR}.${backup_date}" ]] ; then
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diff -Nur "${ZONE_FILE_MASTER_DIR}" "${ZONE_FILE_MASTER_DIR}.${backup_date}" > /dev/null 2>&1
|
|
if [[ $? -eq 0 ]]; then
|
|
info "No zone file has changed.\n\t Removing previously created backup"
|
|
echononl "\tDelete '${ZONE_FILE_MASTER_DIR}.${backup_date}'.."
|
|
rm -rf "${ZONE_FILE_MASTER_DIR}.${backup_date}" > $log_file 2>&1
|
|
if [[ $? -eq 0 ]]; then
|
|
echo_ok
|
|
else
|
|
echo_failed
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
$LOGGING && echo ""
|
|
clean_up 0
|