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- For #1175, the default value of serve-expired-ttl is set to 86400

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(1 day) as suggested by RFC8767.
This commit is contained in:
Yorgos Thessalonikefs 2024-12-03 13:09:51 +01:00
parent bd2e66de1e
commit 9de159b96b
5 changed files with 10 additions and 7 deletions
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2
doc/Changelog
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@ -2,6 +2,8 @@
- Merge #1189: Fix the dname_str method to cause conversion errors
when the domain name length is 255.
- Merge #1197: dname_str() fixes.
- For #1175, the default value of serve-expired-ttl is set to 86400
(1 day) as suggested by RFC8767.
22 November 2024: Yorgos
- Fix #1175: serve-expired does not adhere to secure-by-default

2
doc/example.conf.in
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@ -737,7 +737,7 @@ server:
#
# Limit serving of expired responses to configured seconds after
# expiration. 0 disables the limit.
# serve-expired-ttl: 0
# serve-expired-ttl: 86400
#
# Set the TTL of expired records to the serve-expired-ttl value after a
# failed attempt to retrieve the record from upstream. This makes sure

9
doc/unbound.conf.5.in
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@ -1408,10 +1408,11 @@ out or is taking more than serve\-expired\-client\-timeout to resolve.
Default is "no".
.TP
.B serve\-expired\-ttl: \fI<seconds>
Limit serving of expired responses to configured seconds after expiration. 0
disables the limit. This option only applies when \fBserve\-expired\fR is
enabled. A suggested value per RFC 8767 is between
86400 (1 day) and 259200 (3 days). The default is 0.
Limit serving of expired responses to configured seconds after expiration.
0 disables the limit.
This option only applies when \fBserve\-expired\fR is enabled.
A suggested value per RFC 8767 is between 86400 (1 day) and 259200 (3 days).
The default is 86400.
.TP
.B serve\-expired\-ttl\-reset: \fI<yes or no>
Set the TTL of expired records to the \fBserve\-expired\-ttl\fR value after a

2
util/config_file.c
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@ -280,7 +280,7 @@ config_create(void)
cfg->ignore_cd = 0;
cfg->disable_edns_do = 0;
cfg->serve_expired = 0;
cfg->serve_expired_ttl = 0;
cfg->serve_expired_ttl = 86400;
cfg->serve_expired_ttl_reset = 0;
cfg->serve_expired_reply_ttl = 30;
cfg->serve_expired_client_timeout = 1800;

2
util/data/msgreply.c
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@ -66,7 +66,7 @@ time_t MIN_NEG_TTL = 0;
/** If we serve expired entries and prefetch them */
int SERVE_EXPIRED = 0;
/** Time to serve records after expiration */
time_t SERVE_EXPIRED_TTL = 0;
time_t SERVE_EXPIRED_TTL = 86400;
/** Reset serve expired TTL after failed update attempt */
time_t SERVE_EXPIRED_TTL_RESET = 0;
/** TTL to use for expired records */