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How to Build a custom simple DNS server in C/C++ [closed]

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c++

c

dns

I need to build a custom simple non-authoritative caching DNS server in C/C++. Any guidance? Links? Samples?

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Anton Kopylov Avatar asked Mar 16 '09 08:03

Anton Kopylov

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What is Cache only DNS server?

A cache-only server is a server that is not a master server for any zone other than the in-addr.arpa. domain. A cache-only server handles the same kind of queries from clients that authoritative name servers perform. But the cache-only server does not maintain any authoritative data itself.

2 Answers

I wrote a basic DNS server for a job interview under BSD license.

May be someone could find it useful:

https://github.com/tomasorti/dns-server

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nephewtom Avatar answered Sep 28 '22 16:09

nephewtom

If you really need to do that (it is a huge work, see Alnitak's reply), start from an existing good program (not a one-man experiment unmaintained for a long time like djbdns) and modify it.

Unbound is probably a reasonable choice for this. (The code base is smaller than BIND's one.)

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bortzmeyer Avatar answered Sep 28 '22 18:09

bortzmeyer
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