mirror of
https://github.com/monero-project/monero.git
synced 2024-12-26 21:50:16 +00:00
80 lines
2.3 KiB
Groff
80 lines
2.3 KiB
Groff
|
.TH "unbound" "8" "@date@" "NLnet Labs" "unbound @version@"
|
||
|
|
.\"
|
||
|
|
.\" unbound.8 -- unbound manual
|
||
|
|
.\"
|
||
|
|
.\" Copyright (c) 2007, NLnet Labs. All rights reserved.
|
||
|
|
.\"
|
||
|
|
.\" See LICENSE for the license.
|
||
|
|
.\"
|
||
|
|
.\"
|
||
|
|
.SH "NAME"
|
||
|
|
.B unbound
|
||
|
|
\- Unbound DNS validating resolver @version@.
|
||
|
|
.SH "SYNOPSIS"
|
||
|
|
.B unbound
|
||
|
|
.RB [ \-h ]
|
||
|
|
.RB [ \-d ]
|
||
|
|
.RB [ \-v ]
|
||
|
|
.RB [ \-c
|
||
|
|
.IR cfgfile ]
|
||
|
|
.SH "DESCRIPTION"
|
||
|
|
.B Unbound
|
||
|
|
is a caching DNS resolver.
|
||
|
|
.P
|
||
|
|
It uses a built in list of authoritative nameservers for the root zone (.),
|
||
|
|
the so called root hints.
|
||
|
|
On receiving a DNS query it will ask the root nameservers for
|
||
|
|
an answer and will in almost all cases receive a delegation to a top level
|
||
|
|
domain (TLD) authoritative nameserver.
|
||
|
|
It will then ask that nameserver for an answer.
|
||
|
|
It will recursively continue until an answer is found or no answer is
|
||
|
|
available (NXDOMAIN).
|
||
|
|
For performance and efficiency reasons that answer is cached for a
|
||
|
|
certain time (the answer's time\-to\-live or TTL).
|
||
|
|
A second query for the same name will then be answered from the cache.
|
||
|
|
Unbound can also do DNSSEC validation.
|
||
|
|
.P
|
||
|
|
To use a locally running
|
||
|
|
.B Unbound
|
||
|
|
for resolving put
|
||
|
|
.sp
|
||
|
|
.RS 6n
|
||
|
|
nameserver 127.0.0.1
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
into
|
||
|
|
.IR resolv.conf (5).
|
||
|
|
.P
|
||
|
|
If authoritative DNS is needed as well using
|
||
|
|
.IR nsd (8),
|
||
|
|
careful setup is required because authoritative nameservers and
|
||
|
|
resolvers are using the same port number (53).
|
||
|
|
.P
|
||
|
|
The available options are:
|
||
|
|
.TP
|
||
|
|
.B \-h
|
||
|
|
Show the version and commandline option help.
|
||
|
|
.TP
|
||
|
|
.B \-c\fI cfgfile
|
||
|
|
Set the config file with settings for unbound to read instead of reading the
|
||
|
|
file at the default location, @ub_conf_file@. The syntax is
|
||
|
|
described in \fIunbound.conf\fR(5).
|
||
|
|
.TP
|
||
|
|
.B \-d
|
||
|
|
Debug flag: do not fork into the background, but stay attached to
|
||
|
|
the console. This flag will also delay writing to the log file until
|
||
|
|
the thread\-spawn time, so that most config and setup errors appear on
|
||
|
|
stderr. If given twice or more, logging does not switch to the log file
|
||
|
|
or to syslog, but the log messages are printed to stderr all the time.
|
||
|
|
.TP
|
||
|
|
.B \-v
|
||
|
|
Increase verbosity. If given multiple times, more information is logged.
|
||
|
|
This is in addition to the verbosity (if any) from the config file.
|
||
|
|
.SH "SEE ALSO"
|
||
|
|
\fIunbound.conf\fR(5),
|
||
|
|
\fIunbound\-checkconf\fR(8),
|
||
|
|
\fInsd\fR(8).
|
||
|
|
.SH "AUTHORS"
|
||
|
|
.B Unbound
|
||
|
|
developers are mentioned in the CREDITS file in the distribution.
|