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Minimum safe size is recommended to be 1232. See https://dnsflagday.net/2020/

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Signed-off-by: DL6ER <dl6er@dl6er.de>
This commit is contained in:
Dominik Derigs
2021-12-28 11:03:40 +01:00
committed by Simon Kelley
parent ebd8350300
commit 4308236262
1 changed files with 1 additions and 1 deletions
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2
src/config.h
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@@ -20,7 +20,7 @@
#define TCP_MAX_QUERIES 100 /* Maximum number of queries per incoming TCP connection */ #define TCP_MAX_QUERIES 100 /* Maximum number of queries per incoming TCP connection */
#define TCP_BACKLOG 32 /* kernel backlog limit for TCP connections */ #define TCP_BACKLOG 32 /* kernel backlog limit for TCP connections */
#define EDNS_PKTSZ 4096 /* default max EDNS.0 UDP packet from RFC5625 */ #define EDNS_PKTSZ 4096 /* default max EDNS.0 UDP packet from RFC5625 */
#define SAFE_PKTSZ 1280 /* "go anywhere" UDP packet size */ #define SAFE_PKTSZ 1232 /* "go anywhere" UDP packet size, see https://dnsflagday.net/2020/ */
#define KEYBLOCK_LEN 40 /* choose to minimise fragmentation when storing DNSSEC keys */ #define KEYBLOCK_LEN 40 /* choose to minimise fragmentation when storing DNSSEC keys */
#define DNSSEC_WORK 50 /* Max number of queries to validate one question */ #define DNSSEC_WORK 50 /* Max number of queries to validate one question */
#define TIMEOUT 10 /* drop UDP queries after TIMEOUT seconds */ #define TIMEOUT 10 /* drop UDP queries after TIMEOUT seconds */