Namesilo DDNS updater

Based on Crees namesilo_DDNS which is forked from Pztop namesilo_DDNS.

Dynamic DNS record update with NameSilo.

This is a Bash script to update Namesilo's DNS record when IP changed. Set to run this script as cronjob in your system.

My version has been tested on Ubuntu 14.04+ and MacOS (may certainly work on Fedora 23+ and CentOS 7+).

Differencies with original versions

• Supports IPv4 and IPv6.
• Supports multiple domains if you need it.
• Support for the script to create your dns record if they don't exist.
• Uses .env file instead of a .config one.
• Uses only cURL as dependency (at least for now due to cloudflare/captcha issues --> might change).
• Store IP and time of update files in subdirectory next to the script instead of inside the tmp tree.

Prerequisites:

• Generate API key in the api manager at Namesilo

• Make sure your system has cURL (included in most distros) and xmllint. If not, install it:

on CentOS: sudo yum install curl libxml2

on Ubuntu/Debian: sudo apt-get install curl libxml2-utils

on FreeBSD: sudo pkg install curl libxml2

How to use:

• Download and save the shell script.
• Copy .env.exemple and rename it .env, chmod 600 and set DOMAIN, HOSTS, and APIKEY. You may optionally change the IP_V4_TTL and/or IP_V6_TTL.
• By default the script will do both IPv4 and IPv6. To disable one or the other change the corresponding variable in the .env file.
• Set file permission to make the script executable.
• Create cronjob (optional)
• You can set the -v flag for detailed output (larger log file when redirected to one).

Docker support:

To run the script using Docker, you need to:

1. Install Docker
2. Run the following command to run the docker container:

   docker run -d \
     -e PUID=1000 \
     -e PGID=1000 \
     -e TZ=Europe/Paris \
     -e DOMAINS="github.com,google.com" \
     -e HOSTS="@,*" \
     -e APIKEY='dQw4w9WgXcQ' \
     -e IP_V4_TTL=60 \
     -e IP_V6_TTL=60 \
     -e UPDATE_IP_V4=true \
     -e UPDATE_IP_V6=true \
     -e LOG_FILE="namesilo-ddns-updater.txt" \
     -v path/to/namesilo-ddns-updater.txt:/app/namesilo-ddns-updater.txt \
     vic1707:namesilo-ddns-updater:latest
   

   or via Docker Compose:

   version: "3"
   
   service:
     image: vic1707/namesilo-ddns-updater:latest
     container_name: namesilo-ddns-updater
     environment:
       - PUID=1000 # optional
       - PGID=1000 # optional
       - TZ=Europe/Paris # optional
       - DOMAINS="github.com,google.com"
       - HOSTS="@,*"
       - APIKEY='dQw4w9WgXcQ'
       - IP_V4_TTL=60
       - IP_V6_TTL=60
       - UPDATE_IP_V4=true
       - UPDATE_IP_V6=true
       - LOG_FILE=namesilo-ddns-updater.txt
     volumes:
       - path/to/namesilo-ddns-updater.txt:/app/namesilo-ddns-updater.txt
   

Known issues:

• Getting IP addresses is made via curl on the ifconfig.co/ip service which can throw a cloudflare/captcha wall. If it happens restart the script or wait for the next auto-load.