2019-07-23 11:30:53 +02:00
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# Increasing caching
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2019-07-23 14:09:34 +02:00
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# This has potential to increase memory usage to 110m under heavy usage, but
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# I find that unlikely as almost everything is using so short TTLs
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2019-07-23 11:30:53 +02:00
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# See also MEMORY CONTROL EXAMPLE in man unbound.conf
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server:
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2023-02-21 18:08:54 +01:00
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# bytes in message cache, defaults to 4m
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msg-cache-size: 50m
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# bytes in rrset cache, defaults to 4m
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rrset-cache-size: 50m
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# nxdomain cache, default 1m
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neg-cache-size: 10m
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# Cache results for 15 minutes even if they had a shorter TTL. Cloudflare
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# zone export used to have 1 second, and I have also been seeing 1
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# minute in the wild, I think 5 mins shouldn't break anything, but bigger
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# might.
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cache-min-ttl: 900
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2024-04-07 16:34:36 +02:00
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# Update cache for popular items before they expire. ~10 % traffic
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# increase according to `man unbound.conf`
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prefetch: yes
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# Fetch keys when DS is encountered, lower latency for a bit higher CPU use
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prefetch-key: yes
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2024-04-07 18:44:10 +02:00
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# Allow expired results to be served if they are in cache. The cache will
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# get updated the next time.
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serve-expired: yes
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