Adding debian version 1:9.11.5.P4+dfsg-5.1+deb10u7.debian/1%9.11.5.P4+dfsg-5.1+deb10u7

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+.\"
+.\" ++Copyright++ 1985, 1989
+.\" -
+.\" Copyright (c) 1985, 1989
+.\"    The Regents of the University of California.  All rights reserved.
+.\" 
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\" 	This product includes software developed by the University of
+.\" 	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\" 
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\" -
+.\" Portions Copyright (c) 1993 by Digital Equipment Corporation.
+.\" 
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies, and that
+.\" the name of Digital Equipment Corporation not be used in advertising or
+.\" publicity pertaining to distribution of the document or software without
+.\" specific, written prior permission.
+.\" 
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+.\" WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+.\" CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+.\" DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+.\" PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+.\" ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+.\" SOFTWARE.
+.\" -
+.\" --Copyright--
+.\"
+.\"	@(#)nslookup.8	5.3 (Berkeley) 6/24/90
+.\"
+.Dd June 24, 1990
+.Dt NSLOOKUP 1
+.Os BSD 4
+.Sh NAME
+.Nm nslookup 
+.Nd query Internet name servers interactively
+.Sh SYNOPSIS
+.Nm nslookup
+.Op Fl option Ar ...
+.Op Ar host-to-find | Fl Op Ar server
+.Sh DESCRIPTION
+.Ic Nslookup
+is a program to query Internet domain name servers. 
+.Ic Nslookup 
+has two modes: interactive and non-interactive.
+Interactive mode allows the user to query name servers for
+information about various hosts and domains or to print a list of hosts 
+in a domain. 
+Non-interactive mode is used to print just the name and requested information
+for a host or domain.
+.Sh ARGUMENTS
+Interactive mode is entered in the following cases:
+.Bl -tag -width "a)  " 
+.It a)
+when no arguments are given (the default name server will be used),
+.It b)
+when the first argument is a hyphen (-) and the second argument
+is the host name or Internet address of a name server.
+.El
+.Pp
+Non-interactive mode is used when the name or Internet address 
+of the host to be looked up
+is given as the first argument. The optional second argument specifies
+the host name or address of a name server.
+.Pp
+The options listed under the 
+.Dq Li set 
+command below can be specified in
+the 
+.Pa .nslookuprc 
+file in the user's home directory if they are listed 
+one per line.  Options can also be specified
+on the command line if they precede the arguments and are prefixed with
+a hyphen.  For example, to change the default query type to host information,
+and the initial timeout to 10 seconds, type:
+.Bd -literal -offset indent
+	nslookup -query=hinfo  -timeout=10
+.Ed
+.Sh INTERACTIVE COMMANDS
+Commands may be interrupted at any time by typing a control-C.
+To exit, type a control-D 
+.Pq Dv EOF 
+or type 
+.Li exit .
+The command line length must be less than 256 characters.
+To treat a built-in command as a host name, 
+precede it with an escape character 
+.Pq .&\\ . 
+.Sy N.B.:  An unrecognized command will be interpreted as a host name.
+.Bl -tag -width "lserver" 
+.It Ar host Op Ar server
+Look up information for 
+.Ar host 
+using the current default server or using 
+.Ar server , 
+if specified.
+If 
+.Ar host 
+is an Internet address and the query type is 
+.Dv A 
+or 
+.Dv PTR , 
+the name of the host is returned.
+If 
+.Ar host 
+is a name and does not have a trailing period, the default 
+domain name is appended to the name.  (This behavior depends on the state of the
+.Ic set
+options 
+.Ic domain , srchlist , defname , 
+and 
+.Ic search . )
+.Pp
+To look up a host not in the current domain, append a period to 
+the name.
+.It Ic server Ar domain
+.It Ic lserver Ar domain
+Change the default server to 
+.Ar domain ; 
+.Ic lserver 
+uses the initial server to look up information about 
+.Ar domain ,
+while 
+.Ic server
+uses the current default server. 
+If an authoritative answer can't be found, the names of servers
+that might have the answer are returned.
+.It Ic root
+Changes the default server to the server for the root of the domain name space.
+Currently, the host 
+.Li ns.internic.net 
+is used.
+(This command is a synonym for 
+.Dq Ic lserver ns.internic.net . )
+The name of the root server can be changed with the 
+.Dq Ic set root 
+command.
+.It Xo Ic finger Op Ar name 
+.Op Ic > Ar filename
+.Xc
+.It Xo Ic finger Op Ar name 
+.Op Ic >> Ar filename
+.Xc
+Connects with the finger server on the current host. 
+The current host is defined when a previous lookup for a host
+was successful and returned address information (see the 
+.Dq Ic set querytype=A 
+command).
+The 
+.Ar name 
+is optional. 
+.Ic > 
+and 
+.Ic >> 
+can be used to redirect output in the usual manner.
+.It Xo Ic ls Op Ar option 
+.Ar domain Op Ic > Ar filename
+.Xc
+.It Xo Ic ls Op Ar option 
+.Ar domain Op Ic >> Ar filename
+.Xc
+List the information available for 
+.Ar domain , 
+optionally creating or appending to 
+.Ar filename .
+The default output contains host names and their Internet addresses. 
+.Ar Option 
+can be one of the following:
+.Bl -tag -width "-a  "
+.It Fl t Ar querytype
+lists all records of the specified type (see 
+.Ar querytype 
+below).
+.It Fl a
+lists aliases of hosts in the domain;
+synonym for 
+.Dq Fl t Dv CNAME .
+.It Fl d
+lists all records for the domain;
+synonym for 
+.Dq Fl t Dv ANY .
+.It Fl h
+lists CPU and operating system information for the domain;
+synonym for 
+.Dq Fl t Dv HINFO .
+.It Fl s
+lists well-known services of hosts in the domain;
+synonym for 
+.Dq Fl t Dv WKS .
+.El
+.Pp
+When output is directed to a file, hash marks are printed for every
+50 records received from the server.
+.It Ic view Ar filename
+Sorts and lists the output of previous 
+.Ic ls 
+command(s) with 
+.Xr more @CMD_EXT@ .
+.It Ic help
+.It Ic ?
+Prints a brief summary of commands.
+.It Ic exit
+Exits the program.
+.It Xo Ic set Ar keyword 
+.Ns Op = Ns Ar value
+.Xc
+This command is used to change state information that affects the lookups.
+Valid keywords are:
+.Bl -tag -width "class=v"
+.It Ic all
+Prints the current values of the frequently-used options to 
+.Ic set .
+Information about the  current default server and host is also printed.
+.It Ic class= Ns Ar value
+Change the query class to one of:
+.Bl -tag -width "HESIOD  "
+.It Dv IN
+the Internet class
+.It Dv CHAOS
+the Chaos class
+.It Dv HESIOD
+the MIT Athena Hesiod class
+.It Dv ANY
+wildcard (any of the above)
+.El
+.Pp
+The class specifies the protocol group of the information.
+.Pp
+(Default = 
+.Dv IN ; 
+abbreviation = 
+.Ic cl )
+.It Xo Op Ic no 
+.Ns Ic debug
+.Xc
+Turn debugging mode on.  A lot more information is printed about the
+packet sent to the server and the resulting answer.
+.Pp
+(Default = 
+.Ic nodebug ; 
+abbreviation = 
+.Xo Op Ic no
+.Ns Ic deb )
+.Xc
+.It Xo Op Ic no 
+.Ns Ic d2
+.Xc
+Turn exhaustive debugging mode on.
+Essentially all fields of every packet are printed.
+.Pp
+(Default = 
+.Ic nod2 )
+.It Ic domain= Ns Ar name
+Change the default domain name to 
+.Ar name . 
+The default domain name is appended to a lookup request depending on the
+state of the 
+.Ic defname 
+and 
+.Ic search 
+options.
+The domain search list contains the parents of the default domain if it has 
+at least two components in its name. 
+For example, if the default domain
+is CC.Berkeley.EDU, the search list is CC.Berkeley.EDU and Berkeley.EDU.
+Use the 
+.Dq Ic set srchlist 
+command to specify a different list.
+Use the 
+.Dq Ic set all 
+command to display the list.
+.Pp
+(Default = value from 
+.Xr hostname @CMD_EXT@ , 
+.Pa /etc/resolv.conf ,
+or 
+.Ev LOCALDOMAIN;
+abbreviation = 
+.Ic do )
+.It Ic srchlist= Ns Ar name1/name2/...
+Change the default domain name to 
+.Ar name1 
+and the domain search list
+to 
+.Ar name1 , name2 , 
+etc.  A maximum of 6 names separated by slashes (/)
+can be specified.
+For example,
+.Bd -literal -offset indent
+set srchlist=lcs.MIT.EDU/ai.MIT.EDU/MIT.EDU
+.Ed
+.Pp
+sets the domain to lcs.MIT.EDU and the search list to the three names.
+This command overrides the
+default domain name and search list of the 
+.Dq Ic set domain 
+command.
+Use the 
+.Dq Ic set all 
+command to display the list.
+.Pp
+(Default = value based on 
+.Xr hostname @CMD_EXT@ , 
+.Pa /etc/resolv.conf ,
+or 
+.Ev LOCALDOMAIN;
+abbreviation = 
+.Ic srchl )
+.It Xo Op Ic no
+.Ns Ic defname
+.Xc
+If set, append the default domain name to a single-component lookup request 
+(i.e., one that does not contain a period).
+.Pp
+(Default = 
+.Ic defname ; 
+abbreviation = 
+.Xo Op Ic no
+.Ns Ic defname )
+.Xc
+.It Xo Op Ic no 
+.Ns Ic search
+.Xc
+If the lookup request contains at least one period but 
+.Em doesn't 
+end with a trailing period, append the domain names in the domain search list
+to the request until an answer is received.
+.Pp
+(Default = 
+.Ic search ; 
+abbreviation = 
+.Xo Op Ic no 
+.Ns Ic sea )
+.Xc
+.It Ic port= Ns Ar value
+Change the default TCP/UDP name server port to 
+.Ar value .
+.Pp
+(Default = 53; 
+abbreviation = 
+.Ic \&po )
+.It Ic querytype= Ns Ar value
+.It Ic type= Ns Ar value
+Change the type of information query to one of:
+.Bl -tag -width "HINFO   "
+.It Dv A
+the host's Internet address.
+.It Dv CNAME
+the canonical name for an alias.
+.It Dv HINFO
+the host CPU and operating system type.
+.It Dv MINFO
+the mailbox or mail list information.
+.It Dv MX
+the mail exchanger.
+.It Dv NS
+the name server for the named zone.
+.It Dv PTR
+the host name if the query is an Internet address;
+otherwise, the pointer to other information.
+.It Dv SOA
+the domain's 
+.Dq start-of-authority 
+information.
+.It Dv TXT
+the text information.
+.It Dv UINFO
+the user information.
+.It Dv WKS
+the supported well-known services.
+.El
+.Pp
+Other types 
+.Pq Dv ANY, AXFR, MB, MD, MF, NULL 
+are described in the RFC-1035 document.
+.Pp
+(Default = 
+.Dv A ; 
+abbreviations = 
+.Ic q , ty )
+.It Xo Op Ic no
+.Ns Ic recurse
+.Xc
+Tell the name server to query other servers if it does not have the
+information.
+.Pp
+(Default = 
+.Ic recurse ; 
+abbreviation =
+.Xo Op Ic no
+.Ns Ic rec )
+.Xc
+.It Ic retry= Ns Ar number
+Set the number of retries to 
+.Ar number .
+When a reply to a request is not received within a certain 
+amount of time (changed with 
+.Dq Ic set timeout ) , 
+the timeout period is doubled and the request is resent. 
+The retry value controls how many times a request is resent before giving up.
+.Pp
+(Default = 4, abbreviation = 
+.Ic ret )
+.It Ic root= Ns Ar host
+Change the name of the root server to 
+.Ar host . 
+This affects the 
+.Dq Ic root 
+command. 
+.Pp
+(Default = 
+.Ic ns.internic.net. ;
+abbreviation = 
+.Ic ro )
+.It Ic timeout= Ns Ar number
+Change the initial timeout interval for waiting for a reply to 
+.Ar number 
+seconds. Each retry doubles the timeout period.
+.Pp
+(Default = 5 seconds; abbreviation = 
+.Ic ti )
+.It Xo Op Ic no
+.Ns Ic vc
+.Xc
+Always use a virtual circuit when sending requests to the server.
+.Pp
+(Default = 
+.Ic novc ; 
+abbreviation = 
+.Xo Op Ic no
+.Ns Ic v )
+.Xc
+.It Xo Op Ic no
+.Ns Ic ignoretc
+.Xc 
+Ignore packet truncation errors.
+.Pp
+(Default = 
+.Ic noignoretc ; 
+abbreviation = 
+.Xo Op Ic no
+.Ns Ic ig )
+.Xc 
+.El
+.El
+.Sh DIAGNOSTICS
+If the lookup request was not successful, an error message is printed.
+Possible errors are:
+.Bl -tag -width "Timed"
+.It Li Timed out
+The server did not respond to a request after a certain amount of
+time (changed with 
+.Dq Ic set timeout= Ns Ar value ) 
+and a certain number of retries (changed with 
+.Dq Ic set retry= Ns Ar value ) .
+.It Li \&No response from server
+No name server is running on the server machine.
+.It Li \&No records
+The server does not have resource records of the current query type for the
+host, although the host name is valid.
+The query type is specified with the 
+.Dq Ic set querytype 
+command.
+.It Li Non-existent domain
+The host or domain name does not exist.
+.It Li Connection refused
+.It Li Network is unreachable
+The connection to the name or finger server could not be made 
+at the current time.
+This error commonly occurs with 
+.Ic ls 
+and 
+.Ic finger 
+requests. 
+.It Li Server failure
+The name server found an internal inconsistency in its database
+and could not return a valid answer.
+.It Li Refused
+The name server refused to service the request.
+.It Li Format error
+The name server found that the request packet was not in the proper format.
+It may indicate an error in 
+.Nm nslookup .
+.El
+.Sh FILES
+.Bl -tag -width "/usr/share/misc/nslookup.helpXXX" -compact
+.It Pa /etc/resolv.conf
+initial domain name and name server addresses
+.It Pa $HOME/.nslookuprc
+user's initial options
+.It Pa /usr/share/misc/nslookup.help
+summary of commands
+.El
+.Sh ENVIRONMENT
+.Bl -tag -width "HOSTALIASESXXXX" -compact
+.It Ev HOSTALIASES
+file containing host aliases
+.It Ev LOCALDOMAIN
+overrides default domain
+.El
+.Sh SEE ALSO
+.Xr @INDOT@named @SYS_OPS_EXT@ ,
+.Xr resolver @LIB_NETWORK_EXT@ , 
+.Xr resolver @FORMAT_EXT@ ;
+RFC-1034,
+.Dq Domain Names - Concepts and Facilities ;
+RFC-1035,
+.Dq Domain Names - Implementation and Specification .
+.Sh AUTHOR
+Andrew Cherenson