diff options
Diffstat (limited to 'man/resolved.conf.xml')
| -rw-r--r-- | man/resolved.conf.xml | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/man/resolved.conf.xml b/man/resolved.conf.xml index 7556c6ff31..4fc1ef1b33 100644 --- a/man/resolved.conf.xml +++ b/man/resolved.conf.xml @@ -206,13 +206,25 @@ <term><varname>Cache=</varname></term> <listitem><para>Takes a boolean argument. If "yes" (the default), resolving a domain name which already got queried earlier will return the previous result as long as it is still valid, and thus does not result in a new - network request. Be aware that that turning off caching comes at a performance penalty, which is particularly + network request. Be aware that turning off caching comes at a performance penalty, which is particularly high when DNSSEC is used.</para> <para>Note that caching is turned off implicitly if the configured DNS server is on a host-local IP address (such as 127.0.0.1 or ::1), in order to avoid duplicate local caching.</para></listitem> </varlistentry> + <varlistentry> + <term><varname>DNSStubListener=</varname></term> + <listitem><para>Takes a boolean argument or one of <literal>udp</literal> and <literal>tcp</literal>. If + <literal>udp</literal> (the default), a DNS stub resolver will listen for UDP requests on address 127.0.0.53 + port 53. If <literal>tcp</literal>, the stub will listen for TCP requests on the same address and port. If + <literal>yes</literal>, the stub listens for both UDP and TCP requests. If <literal>no</literal>, the stub + listener is disabled.</para> + + <para>Note that the DNS stub listener is turned off implicitly when its listening address and port are already + in use.</para></listitem> + </varlistentry> + </variablelist> </refsect1> |