.\" Man page generated from reStructuredText. . . .nr rst2man-indent-level 0 . .de1 rstReportMargin \\$1 \\n[an-margin] level \\n[rst2man-indent-level] level margin: \\n[rst2man-indent\\n[rst2man-indent-level]] - \\n[rst2man-indent0] \\n[rst2man-indent1] \\n[rst2man-indent2] .. .de1 INDENT .\" .rstReportMargin pre: . RS \\$1 . nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin] . nr rst2man-indent-level +1 .\" .rstReportMargin post: .. .de UNINDENT . RE .\" indent \\n[an-margin] .\" old: \\n[rst2man-indent\\n[rst2man-indent-level]] .nr rst2man-indent-level -1 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]] .in \\n[rst2man-indent\\n[rst2man-indent-level]]u .. .TH "KHOST" "1" "@RELEASE_DATE@" "@VERSION@" "Knot DNS" .SH NAME khost \- Simple DNS lookup utility .SH SYNOPSIS .sp \fBkhost\fP [\fIoptions\fP] \fIname\fP [\fIserver\fP] .SH DESCRIPTION .sp This utility sends a DNS query for the \fIname\fP to the \fIserver\fP and prints a reply in more user\-readable form. For more advanced DNS queries use \fI\%kdig\fP instead. .SS Parameters .INDENT 0.0 .TP \fIname\fP Is a domain name that is to be looked up. If the \fIname\fP is IPv4 or IPv6 address the PTR query type is used. .TP \fIserver\fP Is a name or an address of the nameserver to send a query to. The address can be specified using [address]:port notation. If no server is specified, the servers from \fB/etc/resolv.conf\fP are used. .UNINDENT .sp If no arguments are provided, \fBkhost\fP prints a short help. .SS Options .INDENT 0.0 .TP \fB\-4\fP Use the IPv4 protocol only. .TP \fB\-6\fP Use the IPv6 protocol only. .TP \fB\-a\fP Send ANY query with verbose mode. .TP \fB\-d\fP Enable debug messages. .TP \fB\-h\fP, \fB\-\-help\fP Print the program help. .TP \fB\-r\fP Disable recursion. .TP \fB\-T\fP Use the TCP protocol. .TP \fB\-v\fP Enable verbose output. .TP \fB\-V\fP, \fB\-\-version\fP Print the program version. .TP \fB\-w\fP Wait forever for the reply. .TP \fB\-c\fP \fIclass\fP Set the query class (e.g. CH, CLASS4). The default class is IN. .TP \fB\-t\fP \fItype\fP Set the query type (e.g. NS, IXFR=12345, TYPE65535). The default is to send 3 queries (A, AAAA and MX). .TP \fB\-R\fP \fIretries\fP The number (>=0) of UDP retries to query a nameserver. The default is 1. .TP \fB\-W\fP \fIwait\fP The time to wait for a reply in seconds. This timeout applies to each query try. The default is 2 seconds. .UNINDENT .SH EXIT VALUES .sp Exit status of 0 means successful operation. Any other exit status indicates an error. .SH EXAMPLES .INDENT 0.0 .IP 1. 3 Get the A, AAAA and MX records for example.com: .INDENT 3.0 .INDENT 3.5 .sp .nf .ft C $ khost example.com .ft P .fi .UNINDENT .UNINDENT .IP 2. 3 Get the reverse record for address 192.0.2.1: .INDENT 3.0 .INDENT 3.5 .sp .nf .ft C $ khost 192.0.2.1 .ft P .fi .UNINDENT .UNINDENT .IP 3. 3 Perform a verbose zone transfer for zone example.com: .INDENT 3.0 .INDENT 3.5 .sp .nf .ft C $ khost \-t AXFR \-v example.com .ft P .fi .UNINDENT .UNINDENT .UNINDENT .SH FILES .sp \fB/etc/resolv.conf\fP .SH SEE ALSO .sp \fBkdig(1)\fP, \fBknsupdate(1)\fP\&. .SH AUTHOR CZ.NIC Labs .SH COPYRIGHT Copyright 2010–2024, CZ.NIC, z.s.p.o. .\" Generated by docutils manpage writer. .