# DDCLIENT `ddclient` is a Perl client used to update dynamic DNS entries for accounts on many dynamic DNS services. It uses `curl` for internet access. This is a friendly fork/continuation of https://github.com/ddclient/ddclient ## Alternatives You might also want to consider using one of the following, if they support your dynamic DNS provider(s): or . ## Supported services Dynamic DNS services currently supported include: * [1984.is](https://www.1984.is/product/freedns) * [ChangeIP](https://www.changeip.com) * [CloudFlare](https://www.cloudflare.com) * [ClouDNS](https://www.cloudns.net) * [DigitalOcean](https://www.digitalocean.com/) * [dinahosting](https://dinahosting.com) * [DonDominio](https://www.dondominio.com) * [DNS Made Easy](https://dnsmadeeasy.com) * [DNSExit](https://dnsexit.com/dns/dns-api) * [domenehsop](https://api.domeneshop.no/docs/#tag/ddns/paths/~1dyndns~1update/get) * [DslReports](https://www.dslreports.com) * [Duck DNS](https://duckdns.org) * [DynDNS.com](https://account.dyn.com) * [EasyDNS](https://www.easydns.com ) * [Enom](https://www.enom.com) * [Freedns](https://freedns.afraid.org) * [Freemyip](https://freemyip.com) * [Gandi](https://gandi.net) * [GoDaddy](https://www.godaddy.com) * [Google](https://domains.google) * [Infomaniak](https://faq.infomaniak.com/2376) * [Loopia](https://www.loopia.se) * [Mythic Beasts](https://www.mythic-beasts.com/support/api/dnsv2/dynamic-dns) * [NameCheap](https://www.namecheap.com) * [NearlyFreeSpeech.net](https://www.nearlyfreespeech.net/services/dns) * [Njalla](https://njal.la/docs/ddns) * [Noip](https://www.noip.com) * nsupdate - see nsupdate(1) and ddns-confgen(8) * [OVH](https://www.ovhcloud.com) * [Porkbun](https://porkbun.com) * [regfish.de](https://www.regfish.de/domains/dyndns) * [Sitelutions](https://www.sitelutions.com) * [woima.fi](https://woima.fi) * [Yandex](https://dns.yandex.com) * [Zoneedit](https://www.zoneedit.com) `ddclient` supports finding your IP address from many cable and DSL broadband routers. Comments, suggestions and requests: please file an issue at https://github.com/ddclient/ddclient/issues/new The code was originally written by Paul Burry and is now hosted and maintained through github.com. Please check out https://ddclient.net ## REQUIREMENTS * An account from a supported dynamic DNS service provider * Perl v5.10.1 or later * `JSON::PP` perl library for JSON support * Linux, macOS, or any other Unix-ish system * An implementation of `make` (such as [GNU Make](https://www.gnu.org/software/make/)) * If you are installing from a clone of the Git repository, you will also need [GNU Autoconf](https://www.gnu.org/software/autoconf/) and [GNU Automake](https://www.gnu.org/software/automake/). ## DOWNLOAD See https://github.com/ddclient/ddclient/releases ## INSTALLATION ### Distribution Package Packaging status The easiest way to install ddclient is to install a package offered by your operating system. See the image to the right for a list of distributions with a ddclient package. ### Manual Installation 1. Extract the distribution tarball (`.tar.gz` file) and `cd` into the directory: ```shell tar xvfa ddclient-3.XX.X.tar.gz cd ddclient-3.XX.X ``` (If you are installing from a clone of the Git repository, you must run `./autogen` before continuing to the next step.) 2. Run the following commands to build and install: ```shell ./configure \ --prefix=/usr \ --sysconfdir=/etc/ddclient \ --localstatedir=/var make make VERBOSE=1 check sudo make install ``` 3. Edit `/etc/ddclient/ddclient.conf`. #### systemd cp sample-etc_systemd.service /etc/systemd/system/ddclient.service enable automatic startup when booting systemctl enable ddclient.service start the first time by hand systemctl start ddclient.service ## TROUBLESHOOTING 1. enable debugging and verbose messages: ``$ ddclient -daemon=0 -debug -verbose -noquiet`` 2. Do you need to specify a proxy? If so, just add a ``proxy=your.isp.proxy`` to the ddclient.conf file. 3. Define the IP address of your router with ``fw=xxx.xxx.xxx.xxx`` in ``/etc/ddclient/ddclient.conf`` and then try ``$ ddclient -daemon=0 -query`` to see if the router status web page can be understood. 4. Need support for another router/firewall? Define the router status page yourself with: ``fw=url-to-your-router``'s-status-page ``fw-skip=any-string-preceding-your-IP-address`` ddclient does something like this to provide builtin support for common routers. For example, the Linksys routers could have been added with: fw=192.168.1.1/Status.htm fw-skip=WAN.*?IP Address OR Send me the output from: ``$ ddclient -geturl {fw-ip-status-url} [-login login [-password password]]`` and I'll add it to the next release! ie. for my fw/router I used: ``$ ddclient -geturl 192.168.1.254/status.htm`` 5. Some broadband routers require the use of a password when ddclient accesses its status page to determine the router's WAN IP address. If this is the case for your router, add fw-login=your-router-login fw-password=your-router-password to the beginning of your ddclient.conf file. Note that some routers use either 'root' or 'admin' as their login while some others accept anything. ## USING DDCLIENT WITH `ppp` If you are using a ppp connection, you can easily update your DynDNS entry with each connection, with: ## configure pppd to update DynDNS with each connection cp sample-etc_ppp_ip-up.local /etc/ppp/ip-up.local Alternatively, you may just configure ddclient to operate as a daemon and monitor your ppp interface. ## USING DDCLIENT WITH `cron` If you have not configured ddclient to use daemon-mode, you'll need to configure cron to force an update once a month so that the dns entry will not become stale. ## configure cron to force an update twice a month cp sample-etc_cron.d_ddclient /etc/cron.d/ddclient vi /etc/cron.d/ddclient ## USING DDCLIENT WITH `dhcpcd` If you are using dhcpcd-1.3.17 or thereabouts, you can easily update your DynDNS entry automatically every time your lease is obtained or renewed by creating an executable file named: ``/etc/dhcpc/dhcpcd-{your-interface}.exe`` ie.: ``cp sample-etc_dhcpc_dhcpcd-eth0.exe /etc/dhcpc/dhcpcd-{your-interface}.exe`` In my case, it is named dhcpcd-eth0.exe and contains the lines: ```shell #!/bin/sh PATH=/usr/bin:/root/bin:${PATH} logger -t dhcpcd IP address changed to $1 ddclient -proxy fasthttp.sympatico.ca -wildcard -ip $1 | logger -t ddclient exit 0 ``` Other DHCP clients may have another method of calling out to programs for updating DNS entries. Alternatively, you may just configure ddclient to operate as a daemon and monitor your ethernet interface. ## USING DDCLIENT WITH `dhclient` If you are using the ISC DHCP client (dhclient), you can update your DynDNS entry automatically every time your lease is obtained or renewed by creating an executable file named: ``/etc/dhclient-exit-hooks`` ie.: ``cp sample-etc_dhclient-exit-hooks /etc/dhclient-exit-hooks`` Edit ``/etc/dhclient-exit-hooks`` to change any options required. Alternatively, you may just configure ddclient to operate as a daemon and monitor your ethernet interface.