How to compile and use 'nscd'

[이병욱]

I found nscd's dafault ttl should be 15 seconds
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because CACHE_PRUNE_INTERVAL is declared as 15.
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But it seems hard to modify it and compile nscd and use the customed nscd in my Centos 7.9.
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I want to see how nscd works when CACHE_PRUNE_INTERVAL is 1 because I try to use DNS round robin at below environments.
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- dns A record www.server.com with 10.1.1.1, 10.1.1.2 with dns ttl 1 seconds.
- client server with customed nscd, send a request to www.server.com
- two backend server indicated by 10.1.1.1, 10.1.1.2
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Is it possible to use the customed nscd?
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Sincerely,
Nimdrak