diff options
Diffstat (limited to 'man/coredns-timeouts.7')
-rw-r--r-- | man/coredns-timeouts.7 | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/man/coredns-timeouts.7 b/man/coredns-timeouts.7 new file mode 100644 index 000000000..a283f6cbd --- /dev/null +++ b/man/coredns-timeouts.7 @@ -0,0 +1,103 @@ +.\" Generated by Mmark Markdown Processer - mmark.miek.nl +.TH "COREDNS-TIMEOUTS" 7 "July 2023" "CoreDNS" "CoreDNS Plugins" + +.SH "NAME" +.PP +\fItimeouts\fP - allows you to configure the server read, write and idle timeouts for the TCP, TLS and DoH servers. + +.SH "DESCRIPTION" +.PP +CoreDNS is configured with sensible timeouts for server connections by default. +However in some cases for example where CoreDNS is serving over a slow mobile +data connection the default timeouts are not optimal. + +.PP +Additionally some routers hold open connections when using DNS over TLS or DNS +over HTTPS. Allowing a longer idle timeout helps performance and reduces issues +with such routers. + +.PP +The \fItimeouts\fP "plugin" allows you to configure CoreDNS server read, write and +idle timeouts. + +.SH "SYNTAX" +.PP +.RS + +.nf +timeouts { + read DURATION + write DURATION + idle DURATION +} + +.fi +.RE + +.PP +For any timeouts that are not provided, default values are used which may vary +depending on the server type. At least one timeout must be specified otherwise +the entire timeouts block should be omitted. + +.SH "EXAMPLES" +.PP +Start a DNS-over-TLS server that picks up incoming DNS-over-TLS queries on port +5553 and uses the nameservers defined in \fB\fC/etc/resolv.conf\fR to resolve the +query. This proxy path uses plain old DNS. A 10 second read timeout, 20 +second write timeout and a 60 second idle timeout have been configured. + +.PP +.RS + +.nf +tls://.:5553 { + tls cert.pem key.pem ca.pem + timeouts { + read 10s + write 20s + idle 60s + } + forward . /etc/resolv.conf +} + +.fi +.RE + +.PP +Start a DNS-over-HTTPS server that is similar to the previous example. Only the +read timeout has been configured for 1 minute. + +.PP +.RS + +.nf +https://. { + tls cert.pem key.pem ca.pem + timeouts { + read 1m + } + forward . /etc/resolv.conf +} + +.fi +.RE + +.PP +Start a standard TCP/UDP server on port 1053. A read and write timeout has been +configured. The timeouts are only applied to the TCP side of the server. + +.PP +.RS + +.nf +\&.:1053 { + timeouts { + read 15s + write 30s + } + forward . /etc/resolv.conf +} + +.fi +.RE + |