khost man page

khost — Simple DNS lookup utility


khost [options] name [server]


This utility sends a DNS query for the name to the server and prints a reply in more user-readable form. For more advanced DNS queries use kdig instead.


Is a domain name that is to be looked up. If the name is IPv4 or IPv6 address the PTR query type is used.
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 /etc/resolv.conf are used.

If no arguments are provided, khost prints a short help.


Use the IPv4 protocol only.
Use the IPv6 protocol only.
Send ANY query with verbose mode.
Enable debug messages.
-h, --help
Print the program help.
Disable recursion.
Use the TCP protocol.
Enable verbose output.
-V, --version
Print the program version.
Wait forever for the reply.
-c class
Set the query class (e.g. CH, CLASS4). The default class is IN.
-t type
Set the query type (e.g. NS, IXFR=12345, TYPE65535). The default is to send 3 queries (A, AAAA and MX).
-R retries
The number (>=0) of UDP retries to query a nameserver. The default is 1.
-W wait
The time to wait for a reply in seconds. This timeout applies to each query try. The default is 2 seconds.



Get the A, AAAA and MX records for example.com:

$ khost example.com

Get the reverse record for address

$ khost

Perform a verbose zone transfer for zone example.com:

$ khost -t AXFR -v example.com



See Also

kdig(1), knsupdate(1).


CZ.NIC Labs <http://www.knot-dns.cz>

Referenced By

kdig(1), knsupdate(1).

Explore man page connections for khost(1).

Knot DNS 2.3.0 2016-08-09