Public bug reported:
Ubuntu 18.04.1
man page for host utility (man host) has information, that "-U" switch
forces UDP mode. But there is no "-U" switch coded in host utility. Is
it a bug in manpage or in host utility?
# host -V
host 9.11.3-1ubuntu1.3-Ubuntu
# host -T www.ubuntu.com
www.ubuntu.com has address 91.189.89.103
# host -U www.ubuntu.com
Usage: host [-aCdilrTvVw] [-c class] [-N ndots] [-t type] [-W time]
[-R number] [-m flag] hostname [server]
-a is equivalent to -v -t ANY
....
Information in manpage (man host):
-T, -U
TCP/UDP: By default, host uses UDP when making queries. The -T
option makes it use a TCP connection when querying the name server.
TCP will be automatically selected for queries that require it,
such as zone transfer (AXFR) requests. Type ANY queries default to
TCP but can be forced to UDP initially using -U.
** Affects: iputils (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1804648
Title:
host utility doesn't support switch -U (force UDP)
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