Annotation of 43BSDTahoe/etc/named/tools/nslookup/nslookup.1, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1986 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)nslookup.1  1.2 (Berkeley) 11/21/87
        !             6: .\"
        !             7: .TH NSLOOKUP 1 "November 21, 1987"
        !             8: .UC 6
        !             9: .SH NAME
        !            10: nslookup \- query name servers interactively
        !            11: .SH SYNOPSIS
        !            12: .B nslookup
        !            13: [
        !            14: .I host-to-find | \-
        !            15: [
        !            16: .I server address | server name
        !            17: ]] 
        !            18: .SH DESCRIPTION
        !            19: .IR Nslookup
        !            20: is a program to query DARPA Internet domain name servers. 
        !            21: Nslookup has two modes: interactive and non-interactive.
        !            22: Interactive mode allows the user to query the name server for
        !            23: information about various  hosts and domains or print a list of hosts 
        !            24: in the domain. 
        !            25: Non-interactive mode is used to print just the name and Internet address
        !            26: of a host or domain.
        !            27: .sp 1
        !            28: .SH ARGUMENTS
        !            29: Interactive mode is entered in the following cases:
        !            30: .IP a) 4
        !            31: when no arguments are given (the default name server will be used), and
        !            32: .IP b) 4
        !            33: when the first argument is a hyphen (\-) and the second argument
        !            34: is the host name of a name server.
        !            35: .LP
        !            36: Non-interactive mode is used when the name of the host to be looked up
        !            37: is given as the first argument. The optional second argument specifies
        !            38: a name server.
        !            39: .sp 1
        !            40: .SH "INTERACTIVE COMMANDS"
        !            41: Commands may be interrupted at any time by typing a control-C.
        !            42: To exit, type a control-D (EOF).
        !            43: The command line length must be less than 80 characters.
        !            44: \fBN.B.\fP an unrecognized command will be interpreted as a host name.
        !            45: .sp 1
        !            46: .IP "host [server]"
        !            47: Look up information for \fIhost\fP using the current default server
        !            48: or using \fIserver\fP if it is specified.
        !            49: .sp 1
        !            50: .IP "\fBserver\fP \fIdomain\fP"
        !            51: .ns
        !            52: .IP "\fBlserver\fP \fIdomain\fP"
        !            53: Change the default server to \fIdomain\fP. 
        !            54: \fBLserver\fP uses the initial server to look up 
        !            55: information about \fIdomain\fP while \fBserver\fP
        !            56: uses the current default server. 
        !            57: If an authoritative answer can't be found, the names of servers
        !            58: that might have the answer are returned.
        !            59: .sp 1
        !            60: .IP \fBroot\fP
        !            61: Changes the default server to the server for the root of the domain name space.
        !            62: Currently, the host sri-nic.arpa is used.
        !            63: (This command is a synonym for the \fBlserver sri-nic.arpa\fP.)
        !            64: The name of the root server can be changed with the \fBset root\fP command.
        !            65: .sp 1
        !            66: .IP "\fBfinger\fP [\fIname\fP] [\fB>\fP \fIfilename\fP]"
        !            67: .ns
        !            68: .IP "\fBfinger\fP [\fIname\fP] [\fB>>\fP \fIfilename\fP]"
        !            69: Connects with the finger server on the current host. 
        !            70: The current host is defined when a previous lookup for a host
        !            71: was successful and returned address information (see the 
        !            72: \fBset querytype=A\fP command).
        !            73: \fIName\fP is optional. 
        !            74: \fB>\fP and \fB>>\fP can be used to redirect output in the
        !            75: usual manner.
        !            76: .sp 1
        !            77: .IP "\fBls\fP \fIdomain\fP [\fB>\fP \fIfilename\fP]"
        !            78: .ns
        !            79: .IP "\fBls\fP \fIdomain\fP [\fB>>\fP \fIfilename\fP]"
        !            80: .ns
        !            81: .IP "\fBls -a\fP \fIdomain\fP [\fB>\fP \fIfilename\fP]"
        !            82: .ns
        !            83: .IP "\fBls -a\fP \fIdomain\fP [\fB>>\fP \fIfilename\fP]"
        !            84: .ns
        !            85: .IP "\fBls -h\fP \fIdomain\fP [\fB>\fP \fIfilename\fP]"
        !            86: .ns
        !            87: .IP "\fBls -h\fP \fIdomain\fP [\fB>>\fP \fIfilename\fP]"
        !            88: .IP "\fBls -d\fP \fIdomain\fP [\fB>\fP \fIfilename\fP]"
        !            89: .ns
        !            90: List the information available for \fIdomain\fP. 
        !            91: The default output contains host names and their Internet addresses. 
        !            92: The \fB-a\fP option lists aliases of hosts in the domain.
        !            93: The \fB-h\fP option lists CPU and operating system information for the domain.
        !            94: The \fB-d\fP option lists all contents of a zone transfer.
        !            95: When output is directed to a file, hash marks are printed for every
        !            96: 50 records received from the server.
        !            97: .sp 1
        !            98: .IP "\fBview\fP \fIfilename\fP"
        !            99: Sorts and lists the output of previous \fBls\fP command(s) with \fImore\fP(1).
        !           100: .sp 1
        !           101: .IP "\fBhelp\fP"
        !           102: .ns
        !           103: .IP "\fB?\fP"
        !           104: Prints a brief summary of commands.
        !           105: .sp 1
        !           106: .IP "\fBset\fP \fIkeyword\fP[=\fIvalue\fP]"
        !           107: This command is used to change state information that affects the lookups.
        !           108: Valid keywords are:
        !           109: .RS
        !           110: .IP "\fBall\fP"
        !           111: Prints the current values of the various options to \fBset\fP.
        !           112: Information about the  current default server and host is also printed.
        !           113: .IP "\fB[no]debug\fP"
        !           114: Turn debugging mode on. A lot more information is printed about the
        !           115: packet sent to the server and the resulting answer.
        !           116: .br
        !           117: (Default = nodebug, abbreviation = [no]deb)
        !           118: .IP "\fB[no]d2\fP"
        !           119: Turn exhaustive debugging mode on.
        !           120: Essentially all fields of every packet are printed.
        !           121: .br
        !           122: (Default = nod2)
        !           123: .IP "\fB[no]defname\fP"
        !           124: Append the default domain name to every lookup.
        !           125: .br
        !           126: (Default = defname, abbreviation = [no]def)
        !           127: .IP "\fB[no]search\fP"
        !           128: With defname, search for each name in parent domains of the current domain.
        !           129: .br
        !           130: (Default = search)
        !           131: .IP "\fBdomain=\fIname\fR"
        !           132: Change the default domain name to \fIname\fP. 
        !           133: The default domain name is appended to all lookup requests if 
        !           134: the \fBdefname\fP option has been set.
        !           135: The search list is set to parents of the domain with at least two components
        !           136: in their names.
        !           137: .br
        !           138: (Default = value in hostname or /etc/resolv.conf, abbreviation = do)
        !           139: .IP "\fBquerytype=\fIvalue\fR"
        !           140: .IP "\fBtype=\fIvalue\fR"
        !           141: Change the type of information returned from a query to one of:
        !           142: .RS
        !           143: .IP A 10
        !           144: the host's Internet address (the default).
        !           145: .IP CNAME  10
        !           146: the canonical name for an alias. 
        !           147: .IP HINFO 10
        !           148: the host CPU and operating system type.
        !           149: .IP MD 10
        !           150: the mail destination.
        !           151: .IP MX 10
        !           152: the mail exchanger.
        !           153: .IP MG     10
        !           154: the mail group member.
        !           155: .IP MINFO 10
        !           156: the mailbox or mail list information.
        !           157: .IP MR     10
        !           158: the mail rename domain name.
        !           159: .IP NS     10
        !           160: nameserver for the named zone.
        !           161: .RE
        !           162: Other types specified in the RFC883 document are valid but aren't
        !           163: very useful.
        !           164: .br
        !           165: (Abbreviation = q)
        !           166: .IP "\fB[no]recurse\fP"
        !           167: Tell the name server to query other servers if it does not have the
        !           168: information.
        !           169: .br
        !           170: (Default = recurse, abbreviation = [no]rec)
        !           171: .IP \fBretry=\fInumber\fR
        !           172: Set the number of retries to \fInumber\fP. 
        !           173: When a reply to a request is not received within a certain 
        !           174: amount of time (changed with \fBset timeout\fP), 
        !           175: the request is resent. 
        !           176: The retry value controls how many times a request is resent before giving up.
        !           177: .br
        !           178: (Default = 2, abbreviation = ret)
        !           179: .IP \fBroot=\fIhost\fR
        !           180: Change the name of the root server to \fIhost\fP. This
        !           181: affects the \fBroot\fP command. 
        !           182: .br
        !           183: (Default = sri-nic.arpa, abbreviation = ro)
        !           184: .IP \fBtimeout=\fInumber\fR
        !           185: Change the time-out interval for waiting for a reply to \fInumber\fP seconds.
        !           186: .br
        !           187: (Default = 10 seconds, abbreviation = t)
        !           188: .IP "\fB[no]vc\fP"
        !           189: Always use a virtual circuit when sending requests to the server.
        !           190: .br
        !           191: (Default = novc, abbreviation = [no]v)
        !           192: .RE
        !           193: .SH DIAGNOSTICS
        !           194: If the lookup request was not successful, an error message is printed.
        !           195: Possible errors are:
        !           196: .IP "Time-out"
        !           197: The server did not respond to a request after a certain amount of
        !           198: time (changed with \fBset timeout=\fIvalue\fR) 
        !           199: and a certain number of retries (changed with \fBset retry=\fIvalue\fR).
        !           200: .IP "No information"
        !           201: Depending on the query type set with the \fBset querytype\fP command,
        !           202: no information about the host was available, though the host name is
        !           203: valid.
        !           204: .IP "Non-existent domain"
        !           205: The host or domain name does not exist.
        !           206: .IP "Connection refused"
        !           207: .ns
        !           208: .IP "Network is unreachable"
        !           209: The connection to the name or finger server could not be made 
        !           210: at the current time.
        !           211: This error commonly occurs with \fBfinger\fP requests. 
        !           212: .IP "Server failure"
        !           213: The name server found an internal inconsistency in its database
        !           214: and could not return a valid answer.
        !           215: .IP "Refused"
        !           216: The name server refused to service the request.
        !           217: .sp 1
        !           218: .PP
        !           219: The following error should not occur and it indicates a bug in the program.
        !           220: .IP "Format error"
        !           221: The name server found that the request packet was not in the proper format.
        !           222: .sp 1
        !           223: .SH FILES
        !           224: /etc/resolv.conf       initial domain name and name server addresses.
        !           225: .SH SEE ALSO
        !           226: resolver(3), resolver(5), named(8), RFC882, RFC883
        !           227: .SH AUTHOR
        !           228: Andrew Cherenson

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