57 lines
2.1 KiB
Bash
57 lines
2.1 KiB
Bash
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#!/bin/bash
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#
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# powerdns-tools
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# https://git.stack-source.com/msb/powerdns-tools
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# MIT License Copyright (c) 2022 Matthew Saunders Brown
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#
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# Basic PowerDNS audit tool. Gets list of zones from pdns database
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# and does DNS lookups on their nameservers to see if the zone uses
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# your nameservers or not (as listed in the authoritative() array below).
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# This tool does not check for mismatched NS records, for example what
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# is listed with the domain registrar is not what's configured in DNS.
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# This tool should be run as root or another user that has access to
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# the pdns database without having to specify connection info. For
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# example a fully configured .my.cnf user file can provide this.
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# For domains that are found to be using other nameservers than yours
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# the A & MX records are listed, the idea being you can check against
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# that to determine if the domains are using your hosting services.
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# No action is taken, this just provides a report that can be reviewed.
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# set array of our nameservers
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authoritative=(ns1.example.com. ns2.example.com. ns3.example.com.)
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# create array of domains from pdns database:
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domains=(`mysql -s -e "SELECT LOWER(name) FROM pdns.domains"`)
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# cycle through each domain
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for domain in "${domains[@]}"; do
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# get nameservers for domain
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nameservers=(`/usr/bin/dig $domain ns +short`)
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# check number of nameservers returned
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if [[ ${#nameservers[@]} = 0 ]]; then
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# domain returns zero nameservers (either unregistered, or registered but no NS entries configured in DNS)
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echo ZERO: $domain
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elif [[ ${#nameservers[@]} -gt 0 ]]; then
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usesours=FALSE
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for nameserver in "${nameservers[@]}"; do
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if [[ " ${authoritative[*]} " =~ " ${nameserver} " ]]; then
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usesours=TRUE
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fi
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done
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if [[ $usesours = FALSE ]]; then
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# domain uses other nameservers than ours
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unset arecord
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unset mxrecord
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arecord=`/usr/bin/dig $domain +short`
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mxrecord=`/usr/bin/dig $domain mx +short`
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echo OTHER: $domain - $arecord - $mxrecord
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else
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# domain uses our nameservers
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echo VERIFIED: $domain
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fi
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else
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# error getting nameservers
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echo ERROR: $domain
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fi
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done
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