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https://github.com/serverwentdown/alias
CoreDNS plugin for replacing CNAME records on zone apex
https://github.com/serverwentdown/alias
aname coredns coredns-plugin golang
Last synced: about 1 month ago
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CoreDNS plugin for replacing CNAME records on zone apex
- Host: GitHub
- URL: https://github.com/serverwentdown/alias
- Owner: serverwentdown
- License: apache-2.0
- Created: 2017-08-20T01:36:36.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2024-05-05T05:05:46.000Z (7 months ago)
- Last Synced: 2024-05-05T06:21:31.101Z (7 months ago)
- Topics: aname, coredns, coredns-plugin, golang
- Language: Go
- Homepage: https://coredns.io/explugins/alias/
- Size: 513 KB
- Stars: 19
- Watchers: 4
- Forks: 9
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-coredns - alias - CoreDNS plugin for replacing CNAME records on zone apex (External Plguins)
README
# alias
The *alias* plugin eliminates CNAME records from zone apex by making the subsequent resolved records look like they belong to the zone apex. This behaves similarily to [CloudFlare's Zone Flattening](https://support.cloudflare.com/hc/en-us/articles/200169056-CNAME-Flattening-RFC-compliant-support-for-CNAME-at-the-root).
This plugin works only with plugins that produce A or AAAA records alongside the CNAME record. Examples include `auto` and `file`. However, you might need to adjust the order of this plugin to use it with other plugins.
> Preferrably, this should not be used in favour of the RFC drafts for the new [ANAME](https://tools.ietf.org/html/draft-ietf-dnsop-aname-00) records, but the DNS library used by CoreDNS does not support ANAME records yet.
Release builds can be found [here](https://github.com/serverwentdown/alias/releases)
## Syntax
```
alias
```
## Examples
```
example.com {
file db.example.com
alias
}
# This is used to resolve CNAME records by the `file` plugin. Modify accordingly
. {
forward . 1.1.1.1 1.0.0.1
}
```
This will transform responses like this:
```
;; ANSWER SECTION:
example.com. 3600 IN CNAME two.example.org.
two.example.org. 3600 IN CNAME one.example.net.
one.example.net. 3600 IN A 127.0.0.1
```
into
```
;; ANSWER SECTION:
example.com. 3600 IN A 127.0.0.1
```
See [`example/`](example/) for a more extensive example.
## Installation
As per [CoreDNS docs](https://coredns.io/2017/07/25/compile-time-enabling-or-disabling-plugins/), there are two ways.
### Build with compile-time configuration file
```
$ git clone https://github.com/coredns/coredns
$ cd coredns
$ vim plugin.cfg
# Add the line alias:github.com/serverwentdown/alias before the file middleware
$ go generate
$ go build
$ ./coredns -plugins | grep alias
```
### Build with external golang source code
```
$ git clone https://github.com/serverwentdown/alias
$ cd alias/coredns
$ go build
$ ./coredns -plugins | grep alias
```