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- Correct and expand manual page entries for keepalive and idle timeout.

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git-svn-id: file:///svn/unbound/trunk@4805 be551aaa-1e26-0410-a405-d3ace91eadb9
This commit is contained in:
Wouter Wijngaards 2018-07-31 07:19:26 +00:00
parent 3dbdde7fed
commit a92b00ef3c
1 changed files with 12 additions and 5 deletions
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17
doc/unbound.conf.5.in
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@ -392,7 +392,10 @@ negotiation between Unbound and other servers.
.B tcp-idle-timeout: \fI<msec>\fR
The period Unbound will wait for a query on a TCP connection.
If this timeout expires Unbound closes the connection.
This option defaults to 30000 milliseconds.
This option defaults to 30000 milliseconds. A mimum timeout of
200 milliseconds is observed regardless of the configured timeout.
When the number of free incoming TCP buffers falls below 50% of the
total number configured, the timeout is reduced to the minimum.
.TP
.B edns-tcp-keepalive: \fI<yes or no>\fR
Enable or disable EDNS TCP Keepalive. Default is no.
@ -400,10 +403,14 @@ Enable or disable EDNS TCP Keepalive. Default is no.
.B edns-tcp-keepalive-timeout: \fI<msec>\fR
The period Unbound will wait for a query on a TCP connection when
EDNS TCP Keepalive is active. If this timeout expires Unbound closes
the connection. This option defaults to 120000 milliseconds.
Unbound sends this value less 200 milliseconds in the EDNS TCP Keepalive
option to give the client time to close the connection before the server
times out.
the connection. If the client supports the EDNS TCP Keepalive option,
Unbound sends the timeout value to the client to encourage it to
close the connection before the server times out.
This option defaults to 120000 milliseconds.
When the number of free incoming TCP buffers falls below 50% of
the total number configured, the advertised timeout is reduced to 0.
A minimum actual timeout of 200 milliseconds is observed regardless of the
advertised timeout.
.TP
.B tcp\-upstream: \fI<yes or no>
Enable or disable whether the upstream queries use TCP only for transport.