- #
- #.Distributed under the terms of the GNU General Public License (GPL) version 2.0
- #
- # The script directly updates a PowerDNS (or maybe bind server) via nsupdate from bind-client package.
- #.based on github request #957 by Jan Riechers <de at r-jan dot de>
- #.2015 Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
- #
- # This script is parsed by dynamic_dns_functions.sh inside send_update() function
- #
- # using following options from /etc/config/ddns
- # option username - keyname
- # option password - shared secret (base64 encoded)
- # option domain - full qualified domain to update
- # option dns_server - DNS server to update
- #
- # variable __IP already defined with the ip-address to use for update
- #
- local __TTL=600 #.preset DNS TTL (in seconds)
- local __RRTYPE __PW __TCP
- local __PROG=$(which nsupdate) # BIND nsupdate ?
- [ -z "$__PROG" ] && __PROG=$(which knsupdate) # Knot nsupdate ?
-
- [ -z "$__PROG" ] && write_log 14 "'nsupdate' or 'knsupdate' not installed !"
- [ -z "$username" ] && write_log 14 "Service section not configured correctly! Missing 'username'"
- [ -z "$password" ] && write_log 14 "Service section not configured correctly! Missing 'password'"
- [ -z "$dns_server" ] && write_log 14 "Service section not configured correctly! Missing 'dns_server'"
-
- [ $use_ipv6 -ne 0 ] && __RRTYPE="AAAA" || __RRTYPE="A"
- [ $force_dnstcp -ne 0 ] && __TCP="-v" || __TCP=""
-
- # create command file
- cat >$DATFILE <<-EOF
- server $dns_server
- key $username $password
- update del $domain $__RRTYPE
- update add $domain $__TTL $__RRTYPE $__IP
- show
- send
- answer
- quit
- EOF
-
- $__PROG -d $__TCP $DATFILE >$ERRFILE 2>&1
-
- # nsupdate always return success
- write_log 7 "(k)nsupdate reports:\n$(cat $ERRFILE)"
-
- return 0
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