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Add documentation for min-{ncache,cache}-ttl

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This commit is contained in:
Ondřej Surý 2018-11-08 02:10:52 +07:00
parent cf9c2ef305
commit 3f95f4ffbb
3 changed files with 69 additions and 31 deletions
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2
bin/named/named.conf.docbook
View File

@ -337,6 +337,8 @@ options {
memstatistics <replaceable>boolean</replaceable>;
memstatistics-file <replaceable>quoted_string</replaceable>;
message-compression <replaceable>boolean</replaceable>;
min-cache-ttl <replaceable>ttlval</replaceable>;
min-ncache-ttl <replaceable>ttlval</replaceable>;
min-refresh-time <replaceable>integer</replaceable>;
min-retry-time <replaceable>integer</replaceable>;
minimal-any <replaceable>boolean</replaceable>;

34
doc/arm/Bv9ARM-book.xml
View File

@ -4311,6 +4311,8 @@ badresp:1,adberr:0,findfail:0,valfail:0]
<command>max-ncache-ttl</command>,
<command>max-stale-ttl</command>,
<command>max-cache-size</command>, and
<command>min-cache-ttl</command>,
<command>min-ncache-ttl</command>,
<command>zero-no-soa-ttl</command>.
</para>
@ -8995,6 +8997,38 @@ avoid-v6-udp-ports { 40000; range 50000 60000; };
</listitem>
</varlistentry>
<varlistentry>
<term><command>min-ncache-ttl</command></term>
<listitem>
<para>
To reduce network traffic and increase performance, the server
stores negative answers. <command>min-ncache-ttl</command> is
used to set a minimum retention time for these answers in the
server in seconds. For convenience, TTL-style time unit
suffixes may be used to specify the value. The default
<command>min-ncache-ttl</command> is <literal>0</literal>
seconds. <command>min-ncache-ttl</command> cannot exceed 90
seconds and will be truncated to 90 seconds if set to a
greater value.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><command>min-cache-ttl</command></term>
<listitem>
<para>
Sets the minimum time for which the server will cache ordinary
(positive) answers in seconds. For convenience, TTL-style time
unit suffixes may be used to specify the value. The default
<command>min-cache-ttl</command> is <literal>0</literal>
seconds. <command>min-cache-ttl</command> cannot exceed 90
seconds and will be truncated to 90 seconds if set to a
greater value.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><command>max-ncache-ttl</command></term>
<listitem>

64
doc/misc/options
View File

@ -89,9 +89,9 @@ options {
bindkeys-file <quoted_string>;
blackhole { <address_match_element>; ... };
cache-file <quoted_string>;
catalog-zones { zone <quoted_string> [ default-masters [ port
<integer> ] [ dscp <integer> ] { ( <masters> | <ipv4_address> [
port <integer> ] | <ipv6_address> [ port <integer> ] ) [ key
catalog-zones { zone <string> [ default-masters [ port <integer> ]
[ dscp <integer> ] { ( <masters> | <ipv4_address> [ port
<integer> ] | <ipv6_address> [ port <integer> ] ) [ key
<string> ]; ... } ] [ zone-directory <quoted_string> ] [
in-memory <boolean> ] [ min-update-interval <ttlval> ]; ... };
check-dup-records ( fail | warn | ignore );
@ -183,7 +183,7 @@ options {
fstrm-set-output-queue-model ( mpsc | spsc );
fstrm-set-output-queue-size <integer>;
fstrm-set-reopen-interval <ttlval>;
geoip-directory ( <quoted_string> | none );
geoip-directory ( <quoted_string> | none ); // not configured
geoip-use-ecs <boolean>; // obsolete
glue-cache <boolean>;
has-old-clients <boolean>; // obsolete
@ -234,6 +234,8 @@ options {
memstatistics <boolean>;
memstatistics-file <quoted_string>;
message-compression <boolean>;
min-cache-ttl <ttlval>;
min-ncache-ttl <ttlval>;
min-refresh-time <integer>;
min-retry-time <integer>;
min-roots <integer>; // not implemented
@ -305,18 +307,17 @@ options {
resolver-retry-interval <integer>;
response-padding { <address_match_element>; ... } block-size
<integer>;
response-policy { zone <quoted_string> [ log <boolean> ] [
max-policy-ttl <ttlval> ] [ min-update-interval <ttlval> ] [
policy ( cname | disabled | drop | given | no-op | nodata |
nxdomain | passthru | tcp-only <quoted_string> ) ] [
recursive-only <boolean> ] [ nsip-enable <boolean> ] [
nsdname-enable <boolean> ]; ... } [ break-dnssec <boolean> ] [
max-policy-ttl <ttlval> ] [ min-update-interval <ttlval> ] [
min-ns-dots <integer> ] [ nsip-wait-recurse <boolean> ] [
qname-wait-recurse <boolean> ] [ recursive-only <boolean> ] [
nsip-enable <boolean> ] [ nsdname-enable <boolean> ] [
dnsrps-enable <boolean> ] [ dnsrps-options { <unspecified-text>
} ];
response-policy { zone <string> [ log <boolean> ] [ max-policy-ttl
<ttlval> ] [ min-update-interval <ttlval> ] [ policy ( cname |
disabled | drop | given | no-op | nodata | nxdomain | passthru
| tcp-only <quoted_string> ) ] [ recursive-only <boolean> ] [
nsip-enable <boolean> ] [ nsdname-enable <boolean> ]; ... } [
break-dnssec <boolean> ] [ max-policy-ttl <ttlval> ] [
min-update-interval <ttlval> ] [ min-ns-dots <integer> ] [
nsip-wait-recurse <boolean> ] [ qname-wait-recurse <boolean> ]
[ recursive-only <boolean> ] [ nsip-enable <boolean> ] [
nsdname-enable <boolean> ] [ dnsrps-enable <boolean> ] [
dnsrps-options { <unspecified-text> } ];
rfc2308-type1 <boolean>; // not yet implemented
root-delegation-only [ exclude { <string>; ... } ];
root-key-sentinel <boolean>;
@ -457,9 +458,9 @@ view <string> [ <class> ] {
auth-nxdomain <boolean>; // default changed
auto-dnssec ( allow | maintain | off );
cache-file <quoted_string>;
catalog-zones { zone <quoted_string> [ default-masters [ port
<integer> ] [ dscp <integer> ] { ( <masters> | <ipv4_address> [
port <integer> ] | <ipv6_address> [ port <integer> ] ) [ key
catalog-zones { zone <string> [ default-masters [ port <integer> ]
[ dscp <integer> ] { ( <masters> | <ipv4_address> [ port
<integer> ] | <ipv6_address> [ port <integer> ] ) [ key
<string> ]; ... } ] [ zone-directory <quoted_string> ] [
in-memory <boolean> ] [ min-update-interval <ttlval> ]; ... };
check-dup-records ( fail | warn | ignore );
@ -574,6 +575,8 @@ view <string> [ <class> ] {
max-udp-size <integer>;
max-zone-ttl ( unlimited | <ttlval> );
message-compression <boolean>;
min-cache-ttl <ttlval>;
min-ncache-ttl <ttlval>;
min-refresh-time <integer>;
min-retry-time <integer>;
min-roots <integer>; // not implemented
@ -635,18 +638,17 @@ view <string> [ <class> ] {
resolver-retry-interval <integer>;
response-padding { <address_match_element>; ... } block-size
<integer>;
response-policy { zone <quoted_string> [ log <boolean> ] [
max-policy-ttl <ttlval> ] [ min-update-interval <ttlval> ] [
policy ( cname | disabled | drop | given | no-op | nodata |
nxdomain | passthru | tcp-only <quoted_string> ) ] [
recursive-only <boolean> ] [ nsip-enable <boolean> ] [
nsdname-enable <boolean> ]; ... } [ break-dnssec <boolean> ] [
max-policy-ttl <ttlval> ] [ min-update-interval <ttlval> ] [
min-ns-dots <integer> ] [ nsip-wait-recurse <boolean> ] [
qname-wait-recurse <boolean> ] [ recursive-only <boolean> ] [
nsip-enable <boolean> ] [ nsdname-enable <boolean> ] [
dnsrps-enable <boolean> ] [ dnsrps-options { <unspecified-text>
} ];
response-policy { zone <string> [ log <boolean> ] [ max-policy-ttl
<ttlval> ] [ min-update-interval <ttlval> ] [ policy ( cname |
disabled | drop | given | no-op | nodata | nxdomain | passthru
| tcp-only <quoted_string> ) ] [ recursive-only <boolean> ] [
nsip-enable <boolean> ] [ nsdname-enable <boolean> ]; ... } [
break-dnssec <boolean> ] [ max-policy-ttl <ttlval> ] [
min-update-interval <ttlval> ] [ min-ns-dots <integer> ] [
nsip-wait-recurse <boolean> ] [ qname-wait-recurse <boolean> ]
[ recursive-only <boolean> ] [ nsip-enable <boolean> ] [
nsdname-enable <boolean> ] [ dnsrps-enable <boolean> ] [
dnsrps-options { <unspecified-text> } ];
rfc2308-type1 <boolean>; // not yet implemented
root-delegation-only [ exclude { <string>; ... } ];
root-key-sentinel <boolean>;