90 lines
2.2 KiB
Bash
Executable File
90 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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#Name der Zone
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DomainZone="50.10.in-addr.arpa."
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#Positionen und Namen der Forward Lookup Zone Files
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ForwardZoneFiles=("/srv/fff-dns/db.fff.community")
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ReverseZoneFile="/var/lib/bind/db.50.10"
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#Temporäres Verzeichnis - muss pro Zone exclusiv sein!
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TempDir="/tmp/50.10.in-addr.arpa"
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#TTL
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TTL=3600
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#refresh
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refresh=2000
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#retry
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retry=6400
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#expire
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expire=2419200
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#minimum
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minimum=86400
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#contact-mail
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contact=franken.freifunk.net.
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#responsible DNS Server by name (for reverseDNS your own)
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responsible=aquarius.gw.fff.community.
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#################################################################
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function dnsreload {
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systemctl reload bind9
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}
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function validate_ip() {
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local ip=$1
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local stat=1
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if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
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OIFS=$IFS
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IFS='.'
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ip=($ip)
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IFS=$OIFS
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[[ ${ip[0]} -le 255 && ${ip[1]} -le 255 \
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&& ${ip[2]} -le 255 && ${ip[3]} -le 255 ]]
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stat=$?
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fi
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return $stat
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}
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mkdir -p $TempDir
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Serials=()
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for ForwardZoneFile in "${ForwardZoneFiles[@]}"
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do
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ZoneName=$(cat $ForwardZoneFile | grep SOA | awk '{ print $1 }' | head -n 1)
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named-compilezone -o "$TempDir/$ZoneName" $ZoneName $ForwardZoneFile >/dev/null 2>&1
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serial=$(cat "$TempDir/$ZoneName" | grep SOA | awk '{ print $7 }' | head -n 1)
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Serials+=( "$serial" )
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done
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Serials=( $( for i in ${Serials[@]}; do echo "$i"; done | sort -rn ) )
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serial=${Serials[0]}
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echo "$DomainZone $TTL IN SOA $responsible $contact $serial $refresh $retry $expire $minimum" > "$TempDir/$DomainZone"
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echo "$DomainZone $TTL IN NS $responsible" >> "$TempDir/$DomainZone"
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for ForwardZoneFile in $(ls $TempDir)
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do
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Hosts=($(cat "$TempDir/$ForwardZoneFile" | grep -v SOA | awk '{ print $1 }'))
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IPs=$(cat "$TempDir/$ForwardZoneFile" | grep -v SOA | awk '{ print $5 }')
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i=0
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for IP in $IPs
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do
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if validate_ip $IP
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then
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echo $(echo $IP | awk 'BEGIN { FS = "." } ; { print $4 "." $3 "." $2 "." $1 }')".in-addr.arpa." $TTL IN PTR ${Hosts[$i]} >> "$TempDir/$DomainZone"
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fi
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i=$((i+1))
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done
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done
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if [ -f $ReverseZoneFile ]; then
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oldSerial=$(grep SOA $ReverseZoneFile | awk 'NR==1{print $7}')
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else
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oldSerial=0
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fi
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if [ $serial -gt $oldSerial ]
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then
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named-compilezone -o $ReverseZoneFile $DomainZone "$TempDir/$DomainZone" >/dev/null 2>&1
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dnsreload
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fi
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rm -r $TempDir
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