dns53
Dynamic DNS client for Amazon Route53
TLDR
SYNOPSIS
dns53 [command] [options]
DESCRIPTION
dns53 is a dynamic DNS client specifically designed for Amazon Route53. It automatically updates DNS A records with the current public IP address of the machine it's running on, making it ideal for home servers or dynamic IP environments.
The tool can run once to update a record or in daemon mode for continuous monitoring. It uses AWS credentials to authenticate with Route53 API and modify DNS records.
PARAMETERS
-d, --domain DOMAIN
Domain hosted in Route53-r, --record RECORD
DNS record name to update-i, --interval SECONDS
Update interval in seconds (daemon mode)-t, --ttl SECONDS
TTL for DNS records (default: 300)--access-key KEY
AWS access key ID--secret-key KEY
AWS secret access key--region REGION
AWS region (default: us-east-1)-c, --config FILE
Configuration file path-v, --verbose
Enable verbose output-h, --help
Display help and exit--version
Display version and exit
CONFIGURATION
Configuration file format (JSON):
"domain": "example.com",
"record": "home.example.com",
"ttl": 300,
"access_key": "AKIA...",
"secret_key": "..."
}
CAVEATS
Requires valid AWS credentials with Route53 permissions. API calls may incur AWS charges. IP detection relies on external services which must be reachable. Daemon mode runs continuously consuming system resources.
HISTORY
dns53 was created to fill the gap for dynamic DNS support in Amazon Route53, which doesn't natively support dynamic updates like traditional DNS servers. It provides a lightweight solution for users wanting to run services on dynamic IPs with AWS DNS.
