This project is a PHP script endpoint for Dynamic DNS updates using ddclient or compatible clients.

This depends on MySQL and Power DNS.

It can be used for hosts at home running Nextcloud, for example.

Set up your domain in Power DNS and add this new database table for ddclient authentication.

USE pdns;
CREATE TABLE ddclient (
  id       INT AUTO_INCREMENT,
  host     VARCHAR(128) NOT NULL,
  password VARCHAR(128) NOT NULL,
  PRIMARY KEY (id)
) Engine=InnoDB CHARACTER SET 'latin1';
CREATE UNIQUE INDEX host_index ON ddclient(host);

mysql -updns -ppdns pdns < table.sql

sudo -s
cd /var/www
hg clone https://hg.kewl.org/pub/ddns
cd ddns
mkdir -p /var/www/htdocs/example.com/ddns
cp index.php var/www/htdocs/example.com/ddns

Copy config_example.php to config.php and edit.

./addhost.php host ipv4|ipv6 password

This adds a host with either a A or AAAA record with the specified password which will be encrypted.

The host is also the login username for ddclient.

The SOA serial is incremented by 1.

./delhost.php host

The specified host is deleted.

The SOA serial is incremented by 1.

./update_soa.php [+]value

The value can replace the SOA serial or be added to the serial when prefixed by “+”.

Eg.

./update_soa.php 10000
./update_soa.php +1

See here.

#! /bin/bash
RESPONSE=$(curl -s http://user:pass@ipvX.example.com/ddns/?hostname=user.example.com)
echo $RESPONSE

STATUS=$(echo $RESPONSE | cut -d' ' -f1)
IPADDR=$(echo $RESPONSE | cut -d' ' -f2)

if test "$STATUS" = "good"; then
        cd /var/www/htdocs/user.example.com && \
        sudo -u www-data php occ config:app:set richdocuments wopi_allowlist --value "$IPADDR"
fi

exit 0

*/5 * * * * /script.sh 1>/dev/null 2>&1

Dyn http update

Dyn error codes