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77 lines
1.8 KiB
Markdown
77 lines
1.8 KiB
Markdown
# timeouts
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## Name
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*timeouts* - allows you to configure the server read, write and idle timeouts for the TCP, TLS and DoH servers.
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## Description
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CoreDNS is configured with sensible timeouts for server connections by default.
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However in some cases for example where CoreDNS is serving over a slow mobile
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data connection the default timeouts are not optimal.
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Additionally some routers hold open connections when using DNS over TLS or DNS
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over HTTPS. Allowing a longer idle timeout helps performance and reduces issues
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with such routers.
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The *timeouts* "plugin" allows you to configure CoreDNS server read, write and
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idle timeouts.
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## Syntax
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~~~ txt
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timeouts {
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read DURATION
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write DURATION
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idle DURATION
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}
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~~~
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For any timeouts that are not provided, default values are used which may vary
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depending on the server type. At least one timeout must be specified otherwise
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the entire timeouts block should be omitted.
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## Examples
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Start a DNS-over-TLS server that picks up incoming DNS-over-TLS queries on port
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5553 and uses the nameservers defined in `/etc/resolv.conf` to resolve the
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query. This proxy path uses plain old DNS. A 10 second read timeout, 20
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second write timeout and a 60 second idle timeout have been configured.
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~~~
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tls://.:5553 {
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tls cert.pem key.pem ca.pem
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timeouts {
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read 10s
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write 20s
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idle 60s
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}
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forward . /etc/resolv.conf
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}
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~~~
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Start a DNS-over-HTTPS server that is similar to the previous example. Only the
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read timeout has been configured for 1 minute.
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~~~
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https://. {
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tls cert.pem key.pem ca.pem
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timeouts {
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read 1m
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}
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forward . /etc/resolv.conf
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}
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~~~
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Start a standard TCP/UDP server on port 1053. A read and write timeout has been
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configured. The timeouts are only applied to the TCP side of the server.
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~~~
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.:1053 {
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timeouts {
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read 15s
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write 30s
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}
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forward . /etc/resolv.conf
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}
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~~~
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