dynu.sh

Update/management program for dynu.com dynamic DNS provider (simmilar to No-ip, duckdns).

Features of the program:

• updates the IPv4 and IPv6 address of your domain(s) hosted on dynu.com

• nsupdate (RFC2136) kind interface to update DNS TXT records. So it can be used as DNS-01 plugin for ACME clients:

  update add _acme-challenge.mydomain.mywire.com 60 IN TXT "abcd-efgh_ijkl"

• lists the content of the zone files

Installation/configuration

Prerequisite for the use of this program to be executed on the dynu.com web site:

1. create an account, a free one is just fine
2. select your domain name
3. get the API-key (token) from the web site, you have to put this into the configuration file later

Next steps on your system:

4. download the program
5. run the program (no need to run as root), that will initialize a default configuration file
6. edit the configuration file, add the API-key (token) into it
7. run the program with the setip argument
8. optionally and preferably, you may want to schedule its regular run via crontab

Troubleshooting

Running the program without arguments gives a short usage instruction. If you have any problem, try first to run with the -d 2 option. Then, please do not hesitate to open an issue!