yum install ddclient
There are some dependencies, however all of them should be installable from mainstream repos:
bash perl perl-Digest-SHA1 perl-Getopt-Long perl perl-IO-Socket-SSL shadow-utils systemd
Now that ddclient and it’s dependencies are installed it is time to edit it’s config file /etc/ddclient.conf:
[root@easy ~]# cat /etc/ddclient.conf ###################################################################### ### (CC BY 3.0 IE) int21hex at https://laptopdoctor.wordpress.com/ ### Based on https://www.andreagrandi.it/ blog post ### /etc/ddclient.conf ### Setup Environment daemon=900 # go easy on the server syslog=yes #mail-failure=root # no place like /dev/null, leaving in for later pid=/var/run/ddclient/ddclient.pid ssl=yes ####################################################################### ### Workaround for ddclient to work with no-ip.com ### Grab external IP dyndns.com, use that for connection to noip.com ### Your $dynamicFQDN should be already setup protocol=dyndns2 use=web, web=checkip.dyndns.com/, web-skip='IP Address' server=dynupdate.no-ip.com login=$YourUsername password=$YourPasswd $dynamicFQDN mx=mail.$dynamicFQDN backupmx=no #wildcard=yes|no # left for later
It’s not bad idea to update /etc/hosts with new domain name:
[root@easy ~]# cat /etc/hosts 127.0.0.1 localhost.locadomain localhost 127.0.0.1 customname.localdom customname 192.168.xxx.xxx $dynamicFQDN
With that out of the way, it is time to set up and enable system service:
[root@easy ~]# systemctl enable ddclient.service [root@easy ~]# systemctl start ddclient [root@easy ~]# systemctl status ddclient ● ddclient.service - A Perl Client Used To Update Dynamic DNS Loaded: loaded (/usr/lib/systemd/system/ddclient.service; enabled; vendor preset: disabled) Active: active (running) since Sat 2017-07-01 21:47:42 IST; 2h 47min ago Main PID: 1629 (ddclient - slee) CGroup: /system.slice/ddclient.service └─1629 ddclient - sleeping for 300 seconds Jul 01 21:47:40 vger systemd[1]: Starting A Perl Client Used To Update Dynamic DNS... Jul 01 21:47:42 vger systemd[1]: Started A Perl Client Used To Update Dynamic DNS.
You can test if it’s working in couple ways. Noip.com dashboard will tell you if hostname is active
After ports are forwarded you can try accessing any of the services running on the server, like Webmin!
https://yourname.no-ip
Third option is to check DNS records for your $dynamicFQDN:
[root@easy ~]# nslookup $dynamicFQDN Server: 89.101.160.4 Address: 89.101.160.4#53 Non-authoritative answer: Name: $dynamicFQDN Address: xxx.xxx.xxx.xxx
Enjoy!