Always permit IPv4-mapped IPv6 loopback addresses#342
Merged
gsamokovarov merged 1 commit intorails:mainfrom Dec 19, 2024
Merged
Always permit IPv4-mapped IPv6 loopback addresses#342gsamokovarov merged 1 commit intorails:mainfrom
gsamokovarov merged 1 commit intorails:mainfrom
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When the server, e.g., Puma binds to unspecified IPv6 address `[::]`
with ,e.g.,:
```ruby, config/puma.rb
port ENV.fetch("PORT", 3000), "::"
```
the server sees the local client connecting from an IPv4-mapped address
`::ffff:127.0.0.1`. This makes connection to the web console rejected
with:
```
Cannot render console from ::ffff:127.0.0.1! Allowed networks: 127.0.0.0/127.255.255.255, ::1
```
unless loopback addresses expressed as IPv4-mapped addressses are
premitted.
Collaborator
|
This is useful, yes. Thank you for your contribution. |
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When the server, e.g., Puma binds to unspecified IPv6 address
[::]with ,e.g.,:the server sees the local client connecting from an IPv4-mapped address
::ffff:127.0.0.1. This makes connection to the web console rejected with:unless loopback addresses expressed as IPv4-mapped addressses are premitted.