27 lines
1.2 KiB
Markdown
27 lines
1.2 KiB
Markdown
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# MDNS Relay
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You ever wanted to split your network into multiple indepented ones, while still being able to find
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your printer or join a spotify session in another network? Then this project is for you.
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The purpose of this program is to relay multicast DNS (mDNS) packets between multiple private networks.
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Existing solution, such a avahi allow you to do this as well but only unconditionally, relaying all questions
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and answers, with this you can decide what queries get relayed and which get blocked.
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## Usage
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`mdns-relay -c <config>` where config is a json file containing these options:
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```json
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{
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"interfaces: "A regex used to filter interfaces on which to listen, to exclude for example the public net or VPNs completely",
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// A list of rules to be applied to incoming packages"
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"rules" : [
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{
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"from": "A regex to match the incoming interface",
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"to": "The exact name of the interface to which matching packets will be relayed",
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"allow_questions": "Regex matching any questions",
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"allow_answers": "Regex matching any answers",
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}
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]
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}
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```
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To apply a rule has to either have a single matching question or answer.
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