dyndns_centos7

Dynamic DNS Client using ddclient on CentOS 7 Richard Harmonson edited this page on 5 Mar 2019 · 5 revisions Dynamic DNS Client using ddclient on CentOS 7

Published: October 8, 2017 Repository & Packages

The ddclient package is found in the EPEL repository; yum install -y epel-release.

$ sudo yum install ddclient

Results

Package Arch Version Repository

                                                                         Size

Installing: ddclient noarch 3.8.3-2.el7 epel 61 k Installing for dependencies: perl x86_64 4:5.16.3-292.el7 base 8.0 M perl-Carp noarch 1.26-244.el7 base 19 k perl-Digest-SHA1 x86_64 2.13-9.el7 base 50 k perl-Encode x86_64 2.51-7.el7 base 1.5 M perl-Exporter noarch 5.68-3.el7 base 28 k perl-File-Path noarch 2.09-2.el7 base 26 k perl-File-Temp noarch 0.23.01-3.el7 base 56 k perl-Filter x86_64 1.49-3.el7 base 76 k perl-Getopt-Long noarch 2.40-2.el7 base 56 k perl-HTTP-Tiny noarch 0.033-3.el7 base 38 k perl-IO-Socket-IP noarch 0.21-4.el7 base 35 k perl-IO-Socket-SSL noarch 1.94-6.el7 base 114 k perl-Net-LibIDN x86_64 0.12-15.el7 base 28 k perl-Net-SSLeay x86_64 1.55-6.el7 base 285 k perl-PathTools x86_64 3.40-5.el7 base 82 k perl-Pod-Escapes noarch 1:1.04-292.el7 base 51 k perl-Pod-Perldoc noarch 3.20-4.el7 base 87 k perl-Pod-Simple noarch 1:3.28-4.el7 base 216 k perl-Pod-Usage noarch 1.63-3.el7 base 27 k perl-Scalar-List-Utils x86_64 1.27-248.el7 base 36 k perl-Socket x86_64 2.010-4.el7 base 49 k perl-Storable x86_64 2.45-3.el7 base 77 k perl-Text-ParseWords noarch 3.29-4.el7 base 14 k perl-Time-HiRes x86_64 4:1.9725-3.el7 base 45 k perl-Time-Local noarch 1.2300-2.el7 base 24 k perl-constant noarch 1.27-2.el7 base 19 k perl-libs x86_64 4:5.16.3-292.el7 base 688 k perl-macros x86_64 4:5.16.3-292.el7 base 43 k perl-parent noarch 1:0.225-244.el7 base 12 k perl-podlators noarch 2.5.1-3.el7 base 112 k perl-threads x86_64 1.87-4.el7 base 49 k perl-threads-shared x86_64 1.43-6.el7 base 39 k

Transaction Summary

Install 1 Package (+32 Dependent packages)

Total download size: 12 M Installed size: 38 M Is this ok [y/d/N]:

Configuration

Default configuration file is found /etc/ddclient.conf. Backup then edit the file to identify the external IP address and update your records with your DDNS provider. External IP Address

$ sudo cp /etc/ddclient.conf /etc/ddclient.conf.bak $ sudo vi /etc/ddclient.conf

Select the method to obtain external IP address. In my case, my firewall does not have a status page, so I remove the “#” before the provided use=web option for checkip. If your firewall does have a status page with the external IP address, I would advise using it. See the configuration file the list of currently supported firewalls.

use=web, web=checkip.dyndns.org/, web-skip='IP Address' # found after IP Address

Also, update the frequency from 300 to 600 seconds due to threat of being banned by dyndns.org.

daemon=600

DDNS Provider

ddclient supports:

  DynDNS (dyndns.org)
  ZoneEdit (zoneedit.com)
  EasyDNS (easydns.com)
  Hammernode (hn.org)
  DSLReports (dslreports.com)
  OrgDNS (orgdns.org)
  DNSPark (dnspark.com)
  NameCheap (namecheap.com)

NameCheap Example

Using NameCheap, update its stanza as follows:

## ## NameCheap (namecheap.com) ## protocol=namecheap, \ server=dynamicdns.park-your-domain.com, \ login=mydomain.com, \ password=[youkeyfromyouranamecheapaccountwithoutthesebrackets] \ @, www, mail, [host4], [host5]

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