# [Duckdns](https://duckdns.org/) is a free service which will point a DNS (sub # domains of duckdns.org) to an IP of your choice. The service is completely # free, and doesn't require reactivation or forum posts to maintain its # existence. . ./.env docker run -d \ --name=duckdns \ -e PUID=${PUID:-1024} `# optional` `# for UserID` \ -e PGID=${PGID:-100} `# optional` `# for GroupID` \ -e TZ=${TZ:-Europe/Amsterdam} `# optional` `# specify a timezone to use, see this [list](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List).` \ -e SUBDOMAINS=subdomain1,subdomain2 `# multiple subdomains allowed, comma separated, no spaces` \ -e TOKEN=token `# DuckDNS token` \ -e LOG_FILE=false `# optional` `# Set to `true` to log to file (also need to map /config).` \ -v ${BASEDIR:-/volume1/docker}/duckdns/config:/config `# optional` `# Used in conjunction with logging to file.` \ --restart unless-stopped \ ghcr.io/linuxserver/duckdns