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resolved: don't bother caching negative RRs when the SOA TTL is 0 anyway
[elogind.git]
/
src
/
resolve
/
resolved-dns-cache.c
diff --git
a/src/resolve/resolved-dns-cache.c
b/src/resolve/resolved-dns-cache.c
index f7091f07bf4b5c18e1ba949ca6bd4a4fed548f32..40fb6c39844c484ef0888978c55167dd0142670f 100644
(file)
--- a/
src/resolve/resolved-dns-cache.c
+++ b/
src/resolve/resolved-dns-cache.c
@@
-320,6
+320,8
@@
static int dns_cache_put_negative(DnsCache *c, DnsResourceKey *key, int rcode, u
return 0;
if (key->type == DNS_TYPE_ANY)
return 0;
+ if (soa_ttl <= 0)
+ return 0;
if (!IN_SET(rcode, DNS_RCODE_SUCCESS, DNS_RCODE_NXDOMAIN))
return 0;