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https://github.com/mthssdrbrg/ddns-route53
Dynamic DNS updater using AWS Route53
https://github.com/mthssdrbrg/ddns-route53
aws ddns dns route53
Last synced: about 2 months ago
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Dynamic DNS updater using AWS Route53
- Host: GitHub
- URL: https://github.com/mthssdrbrg/ddns-route53
- Owner: mthssdrbrg
- License: unlicense
- Created: 2016-01-01T06:45:55.000Z (over 8 years ago)
- Default Branch: main
- Last Pushed: 2022-01-03T15:00:58.000Z (over 2 years ago)
- Last Synced: 2024-06-11T23:05:59.465Z (3 months ago)
- Topics: aws, ddns, dns, route53
- Language: Shell
- Homepage:
- Size: 45.9 KB
- Stars: 79
- Watchers: 3
- Forks: 23
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE.txt
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README
# ddns-route53
[](https://travis-ci.org/mthssdrbrg/ddns-route53)
[]()
Simple dynamic DNS updater script using Amazon Route53.
Source is originally from [Roll your own dynamic DNS service using Amazon Route53](https://willwarren.com/2014/07/03/roll-dynamic-dns-service-using-amazon-route53)
though it's been modified to use OpenDNS for getting the current IP address, as
well as usage of command line arguments and environment variables.
## Requirements
* `bash`
* `awscli`
* `dig`
## Installation
```shell
curl -sLO https://github.com/mthssdrbrg/ddns-route53/raw/$VERSION/ddns-route53
```
The following IAM policy (or something similar) will have to be applied to an user or role.
Unfortunately it's not possible to restrict access to specific resource record (yet), but
a workaround is to create a "sub" hosted zone for a specific record.
```json
{
"Version": "2012-10-17",
"Statement": [
{
"Action": [
"route53:ChangeResourceRecordSets",
"route53:ListResourceRecordSets"
],
"Effect": "Allow",
"Resource": "arn:aws:route53:::hostedzone/EXAMPLE"
}
]
}
```
## Usage
```shell
$ ddns-route53 --zone-id --record-set
```
> Note: long options on the form `--long-option=` are not supported.
The above command assumes that the necessary environment variables for `awscli`
are set, an A type record and a TTL of 300 seconds.
See `ddns-route53 --help` for more information about command line arguments.
It's possible to set a number of environment variables instead of using command
line arguments, though command line arguments take precedence over environment
variables.
* `DDNS_ROUTE53_TTL`: TTL for DNS record.
* `DDNS_ROUTE53_TYPE`: DNS record type.
* `DDNS_ROUTE53_COMMENT`: comment set when updating the Route53 record (only
configurable as environment variable).
* `DDNS_ROUTE53_ZONE_ID`: Amazon Route53 hosted zone ID.
* `DDNS_ROUTE53_RECORD_SET`: Amazon Route53 record set name.
* `DDNS_ROUTE53_SCRIPT`: path to script to execute on changes.
## Copyright
This is free and unencumbered software released into the public domain.
See LICENSE.txt or [unlicense.org](http://unlicense.org) for more information.