lwIP - A Lightweight TCP/IP stack - Bugs: bug #36899, DNS TTL 0 is cached for a long time
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bug #36899: DNS TTL 0 is cached for a long time
Submitter: | Måns Andersson <mansandersson> | ||
Submitted: | Fri 20 Jul 2012 10:44:53 AM UTC | ||
Category: | None | Severity: | 3 - Normal |
Item Group: | Faulty Behaviour | Status: | Fixed |
Privacy: | Public | Assigned to: | goldsimon |
Open/Closed: | Closed | Planned Release: | None |
lwIP version: | 1.4.0 |
Mon 13 Aug 2012 07:34:28 PM UTC, comment #1: |
Simon Goldschmidt <goldsimon> |
Fri 20 Jul 2012 10:44:53 AM UTC, original submission:
I'm using lwip 1.4.0 with an opendns.com dns server. When OpenDNS can't resolve
|
Måns Andersson <mansandersson> |
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Follow 4 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2012-08-13 | goldsimon | Status | None | Fixed | |
Assigned to | None | goldsimon | |||
Open/Closed | Open | Closed | |||
Planned Release | 1.5.0 |
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Corresponding source code
Fixed, thanks for reporting.
In addition to the suggested fix, I've flushed the entry right in the receive-callback, which is what RFC 883 requires on page 29:
"Zero values are
interpreted to mean that the RR can only be used for the
transaction in progress, and should not be cached."