> On 15 Feb 2023, at 10:31, Aditya Sharma wrote:
>
> Hi Kevin,
>
> When the TTLs expire, those records in the cache become 'stale', and are
> normally purged. Your request is to have an option in systemd-resolved to
> *not* purge those records, but to continue serving them in case it is unab
On Wed, Feb 15, 2023, at 05:31, Aditya Sharma wrote:
> We were thinking of an approach where we keep on serving the last known good
> FQDNs even after the TTL has expired (only when we are unable to communicate
> with the resolvers). For that, we need to intercept the DNS calls and
> maintain so
Hi Kevin,
*When the TTLs expire, those records in the cache become 'stale', and are
normally purged. Your request is to have an option in systemd-resolved to
*not* purge those records, but to continue serving them in case it is
unable to communicate with the configured recursive resolver(s).*
Sor
On Tue, Feb 14, 2023, at 04:04, Aditya Sharma wrote:
> Hi Kevin,
>
> *If what you mean is that you want to serve 'stale' records from a cache when
> their TTLs have expired and the authoritative servers which provided them are
> not reachable, that's something that a number of existing recursive
Hi Kevin,
*If what you mean is that you want to serve 'stale' records from a cache
when their TTLs have expired and the authoritative servers which provided
them are not reachable, that's something that a number of existing
recursive resolvers are able to do and it could be logical for
systemd-re
On Mon, Feb 13, 2023, at 05:38, Aditya Sharma wrote:
> Hi All,
>
> We needed help in understanding how systemd-resolved service can be extended
> to cache DNS responses to protect against DNS server failures.
> We were planning to maintain a cache so that we can override negative
> responses fro
Hi All,
We needed help in understanding how systemd-resolved service can be
extended to cache DNS responses to protect against DNS server failures.
We were planning to maintain a cache so that we can override negative
responses from the DNS server and replace it with our cached last known
good rec
