83 lines
2.4 KiB
Bash
83 lines
2.4 KiB
Bash
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#!/bin/bash
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#
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# pdns-tools
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# https://git.stack-source.com/msb/pdns-tools
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# Copyright (c) 2023 Matthew Saunders Brown <matthewsaundersbrown@gmail.com>
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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# load include file
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source $(dirname $0)/pdns.sh
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help()
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{
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thisfilename=$(basename -- "$0")
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echo "$thisfilename"
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echo "Set/update PTR Record."
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echo ""
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echo "usage: $thisfilename -i <ip> [-r <record>] [-l <ttl>] [-s <status>] [-c <comment>] [-a <account>] [-h]"
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echo ""
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echo " -h Print this help."
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echo " -i <ip> IP address to set PTR record for."
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echo " -r <record> Data/value (hostname) of PTR record, optional."
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echo " -l <ttl> TTL, optional, defaults to $zone_defaults_ttl."
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echo " -s <0|1> Status, optional. O (default) for active or 1 for disabled."
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echo " -c <comment> An optional comment/note about the record."
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echo " -a <account> The account that the comment gets attributed too."
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echo " Only used if comment is set. Optional, defaults to hostname of server running this script."
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echo
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echo " This script sets or updates the PTR record of a given IP."
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echo " The <record> should be a FQDN (Fully Qualified Domain Name) or left blank."
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echo " If the <record> is blank then a default value will be set, effectively re-setting the PTR record to it's default."
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}
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pdns:getoptions "$@"
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# check for IP
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if [[ -z $ip ]]; then
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echo "IP is required"
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exit
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fi
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# set zone & name
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OIFS=$IFS
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IFS='.'
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ip_parts=($ip)
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IFS=$OIFS
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zone=${ip_parts[2]}.${ip_parts[1]}.${ip_parts[0]}.in-addr.arpa.
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name=${ip_parts[3]}.$zone
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# check that zone exists
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if pdns-zone-ext.sh -z $zone >> /dev/null; then
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# zone exists, build & execute command
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cmd="pdns-rr-rep.sh -z $zone -n $name -t PTR"
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# check for record data, create default if unset
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if [[ -z $record ]]; then
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record=${ip_parts[0]}-${ip_parts[1]}-${ip_parts[2]}-${ip_parts[3]}.in-addr.arpa.`dig +short $zone soa|cut -d ' ' -f 2|cut -d "." -f 2-`
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fi
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cmd="$cmd -r $record"
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if [[ -n $ttl ]]; then
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cmd="$cmd -l $ttl"
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fi
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if [[ -n $status ]]; then
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cmd="$cmd -s $status"
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fi
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if [[ -n $comment ]]; then
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cmd="$cmd -c $comment"
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fi
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if [[ -n $account ]]; then
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cmd="$cmd -a $account"
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fi
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echo $cmd
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else
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echo "Zone for $zone does not exist, can't set PTR."
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fi
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