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dns: improve CLI commands by adding missing parameters

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This commit is contained in:
Christian Poessinger 2021-10-13 09:32:14 +02:00
parent f51f769c62
commit 90172aca00
1 changed files with 9 additions and 6 deletions
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15
docs/configuration/service/dns.rst
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@ -94,16 +94,19 @@ avoid being tracked by the provider of your upstream DNS server.
Maximum number of DNS cache entries. 1 million per CPU core will generally
suffice for most installations.
.. cfgcmd:: set service dns forwarding negative-ttl
This defaults to 10000.
.. cfgcmd:: set service dns forwarding negative-ttl <0-7200>
A query for which there is authoritatively no answer is cached to quickly
deny a record's existence later on, without putting a heavy load on the
remote server. In practice, caches can become saturated with hundreds of
thousands of hosts which are tried only once. This setting, which defaults
to 3600 seconds, puts a maximum on the amount of time negative entries are
cached.
thousands of hosts which are tried only once.
.. cfgcmd:: set service dns forwarding listen-address
This setting, which defaults to 3600 seconds, puts a maximum on the amount
of time negative entries are cached.
.. cfgcmd:: set service dns forwarding listen-address <address>
The local IPv4 or IPv6 addresses to bind the DNS forwarder to. The forwarder
will listen on this address for incoming connections.
@ -111,7 +114,7 @@ avoid being tracked by the provider of your upstream DNS server.
.. cfgcmd:: set service dns forwarding no-serve-rfc1918
This makes the server authoritatively not aware of: 10.in-addr.arpa,
168.192.in-addr.arpa, 16-31.172.in-addr.arpa, which enabling upstream
168.192.in-addr.arpa, 16-31.172.in-addr.arpa, which enabling upstream
DNS server(s) to be used for reverse lookups of these zones.
Example