- (bal) Remove make-ssh-known-hosts.1 since it's no longer valid.
This commit is contained in:
Ben Lindstrom
parent
d0ccb989c2
commit
59a5f9bd69
13
ChangeLog
13
ChangeLog
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@ -1,8 +1,11 @@
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20010304
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- (bal) Remove make-ssh-known-hosts.1 since it's no longer valid.
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20010303
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- Remove make-ssh-known-hosts.pl, ssh-keyscan is better.
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- Document PAM ChallengeResponseAuthentication in sshd.8
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- Disable and comment ChallengeResponseAuthentication in sshd_config
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- Allow PRNGd entropy collection from localhost TCP socket. Replace
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- (djm) Remove make-ssh-known-hosts.pl, ssh-keyscan is better.
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- (djm) Document PAM ChallengeResponseAuthentication in sshd.8
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- (djm) Disable and comment ChallengeResponseAuthentication in sshd_config
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- (djm) Allow PRNGd entropy collection from localhost TCP socket. Replace
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"--with-egd-pool" configure option with "--with-prngd-socket" and
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"--with-prngd-port" options. Debugged and improved by Lutz Jaenicke
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<Lutz.Jaenicke@aet.TU-Cottbus.DE>
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@ -4184,4 +4187,4 @@
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- Wrote replacements for strlcpy and mkdtemp
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- Released 1.0pre1
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$Id: ChangeLog,v 1.848 2001/03/03 13:29:20 djm Exp $
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$Id: ChangeLog,v 1.849 2001/03/03 21:37:50 mouring Exp $
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@ -1,432 +0,0 @@
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.\" -*- nroff -*-
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.\" ----------------------------------------------------------------------
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.\" make-ssh-known-hosts.1 -- Make ssh-known-hosts file
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.\" Copyright (c) 1995 Tero Kivinen
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.\" All Rights Reserved.
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.\"
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.\" Make-ssh-known-hosts is distributed in the hope that it will be
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.\" useful, but WITHOUT ANY WARRANTY. No author or distributor accepts
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.\" responsibility to anyone for the consequences of using it or for
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.\" whether it serves any particular purpose or works at all, unless he
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.\" says so in writing. Refer to the General Public License for full
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.\" details.
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.\"
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.\" Everyone is granted permission to copy, modify and redistribute
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.\" make-ssh-known-hosts, but only under the conditions described in
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.\" the General Public License. A copy of this license is supposed to
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.\" have been given to you along with make-ssh-known-hosts so you can
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.\" know your rights and responsibilities. It should be in a file named
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.\" COPYING. Among other things, the copyright notice and this notice
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.\" must be preserved on all copies.
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.\" ----------------------------------------------------------------------
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.\" Program: make-ssh-known-hosts.1
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.\" $Source: /var/cvs/openssh/contrib/Attic/make-ssh-known-hosts.1,v $
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.\" Author : $Author: damien $
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.\"
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.\" (C) Tero Kivinen 1995 <Tero.Kivinen@hut.fi>
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.\"
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.\" Creation : 03:51 Jun 28 1995 kivinen
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.\" Last Modification : 03:44 Jun 28 1995 kivinen
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.\" Last check in : $Date: 2000/03/15 01:13:03 $
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.\" Revision number : $Revision: 1.1 $
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.\" State : $State: Exp $
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.\" Version : 1.1
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.\"
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.\" Description : Manual page for make-ssh-known-hosts.pl
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.\"
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.\" $Log: make-ssh-known-hosts.1,v $
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.\" Revision 1.1 2000/03/15 01:13:03 damien
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.\" - Created contrib/ subdirectory. Included helpers from Phil Hands'
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.\" Debian package, README file and chroot patch from Ricardo Cerqueira
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.\" <rmcc@clix.pt>
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.\" - Moved gnome-ssh-askpass.c to contrib directory and reomved config
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.\" option.
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.\" - Slight cleanup to doc files
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.\"
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.\" Revision 1.4 1998/07/08 00:40:14 kivinen
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.\" Changed to do similar commercial #ifdef processing than other
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.\" files.
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.\"
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.\" Revision 1.3 1998/06/11 00:07:21 kivinen
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.\" Fixed comment characters.
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.\"
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.\" Revision 1.2 1997/04/27 21:48:28 kivinen
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.\" Added F-SECURE stuff.
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.\"
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.\" Revision 1.1.1.1 1996/02/18 21:38:13 ylo
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.\" Imported ssh-1.2.13.
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.\"
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.\" Revision 1.5 1995/10/02 01:23:23 ylo
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.\" Make substitutions by configure.
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.\"
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.\" Revision 1.4 1995/08/31 09:21:35 ylo
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.\" Minor cleanup.
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.\"
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.\" Revision 1.3 1995/08/29 22:37:10 ylo
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.\" Minor cleanup.
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.\"
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.\" Revision 1.2 1995/07/15 13:26:11 ylo
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.\" Changes from kivinen.
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.\"
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.\" Revision 1.1.1.1 1995/07/12 22:41:05 ylo
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.\" Imported ssh-1.0.0.
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.\"
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.\"
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.\"
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.\" If you have any useful modifications or extensions please send them to
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.\" Tero.Kivinen@hut.fi
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.\"
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.\"
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.\"
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.\"
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.\"
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.\" #ifndef F_SECURE_COMMERCIAL
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.TH MAKE-SSH-KNOWN-HOSTS 1 "November 8, 1995" "SSH TOOLS" "SSH TOOLS"
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.\" #endif F_SECURE_COMMERCIAL
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.SH NAME
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make-ssh-known-hosts \- make ssh_known_hosts file from DNS data
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.SH SYNOPSIS
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.na
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.TP
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.B make-ssh-known-hosts
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.RB "[\|" "\-\-initialdns "\c
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.I initial_dns\c
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\|]
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.br
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.RB "[\|" "\-\-server "\c
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.I domain_name_server\c
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\|]
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.br
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.RB "[\|" "\-\-subdomains "\c
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.I comma_separated_list_of_subdomains\c
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\|]
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.br
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.RB "[\|" "\-\-debug "\c
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.I debug_level\c
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\|]
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.br
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.RB "[\|" "\-\-timeout "\c
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.I ssh_exec_timeout\c
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\|]
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.br
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.RB "[\|" "\-\-pingtimeout "\c
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.I ping_timeout\c
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\|]
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.br
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.RB "[\|" "\-\-passwordtimeout "\c
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.I timeout_when_asking_password\c
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\|]
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.br
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.RB "[\|" "\-\-notrustdaemon" "\|]"
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.br
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.RB "[\|" "\-\-norecursive" "\|]"
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.br
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.RB "[\|" "\-\-domainnamesplit" "\|]"
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.br
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.RB "[\|" "\-\-silent" "\|]"
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.br
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.RB "[\|" "\-\-keyscan" "\|]"
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.br
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.RB "[\|" "\-\-nslookup "\c
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.I path_to_nslookup_program\c
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\|]
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.br
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.RB "[\|" "\-\-ssh "\c
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.I path_to_ssh_program\c
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\|]
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.br
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.IR "domain_name " "[\|" "take_regexp " "[\|" "remove_regexp"\|]\|]"
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.SH DESCRIPTION
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.LP
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.B make-ssh-known-hosts
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is a perl5 script that helps create the
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.I /etc/ssh_known_hosts
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file, which is used by
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.B ssh
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to contain the host keys of all publicly known hosts.
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.B Ssh
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does not normally permit login using rhosts or /etc/hosts.equiv
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authentication unless the server knows the client's host key. In
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addition, the host keys are used to prevent man-in-the-middle attacks.
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.LP
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In addition to
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.IR /etc/ssh_known_hosts ",
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.B ssh
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also uses the
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.I $HOME/.ssh/known_hosts
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file. This file, however, is intended to contain only those hosts
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that the particular user needs but are not in the global file. It is
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intended that the
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.I /etc/ssh_known_hosts
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file be maintained by the system administration, and periodically
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updated to contain the host keys for any new hosts.
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.LP
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The
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.B make-ssh-known-hosts
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program finds all the hosts in a domain by making a DNS query to the
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master domain name server of the domain. The master domain name server
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is located by searching for the SOA record of the domain from the initial
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domain name server (which can be specified with the
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.B \-\-initialdns
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option). The master domain name server can also be given directly with
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the
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.B \-\-server
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option.
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.LP
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After getting the hostname list
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.B make-ssh-known-hosts
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tries to get the public key from every host in the domain. It first
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tries to connect ssh port to check check if the host is alive, and if
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so, it tries to run the command
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.B cat /etc/ssh_host_key.pub
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on the remote machine using
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.BR ssh ".
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If the command succeeds, it knows the remote machine has
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.B ssh
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installed properly, and it then extracts the public key from the
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output, and prints the
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.B /etc/ssh_known_hosts
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entry for it to
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.BR STDOUT ". Because
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.B make-ssh-known-hosts
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is usually run before
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remote machines have /etc/ssh_known_hosts file you may have to use
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RSA-authentication to allow access to hosts.
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.LP
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If the command fails for some reason, it checks if the
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.B ssh
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client still got the public key from the remote host in the initial dialog,
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and if so, it will print a proper entry, and if
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.B \-\-notrustdaemon
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option is given comment it out.
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.LP
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.I Domain_name
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is the domain name for which the file is to be generated. By default
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.B make-ssh-known-hosts
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extracts also all subdomains of domain. Many sites will want to
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include several domains in their
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.I /etc/ssh_known_hosts
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file. The entries for each domain should be extracted separately by
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running
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.B make-ssh-known-hosts
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once for each domain. The results should then be combined to create
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the final file.
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.LP
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.I Take_regexp
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is a perl regular expression that matches the hosts to be taken from the
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domain. The data matched contains all the DNS records in the form "\|\c
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.B fieldname=value\c
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\|". The fields are separated with newline, and the perl match is made in
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multiline mode and it is case insensetive. The multiline mode means
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that you can use a regexp like "\|\c
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.B ^wks=.*telnet.*$\c
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\|" to match all hosts that have WKS (well known services) field that
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contains value "telnet".
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.LP
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.I Remove_regexp
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is similar but those hosts that match the regexp are not added (it can
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be used for example to filter out PCs and Macs using the hinfo field: "\|\c
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.B ^hinfo=.*(mac|pc)\c
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\|").
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.SH OPTIONS
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.TP
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.BI "\-\-initialdns " "initial_dns"\c
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.TP
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.BI "\-i " "initial_dns"\c
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\&Set the initial domain name server used to query the SOA record of the
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domain.
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.TP
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.BI "\-\-server " "domain_name_server"\c
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.TP
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.BI "\-se " "domain_name_server"\c
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\&Set the master domain name server of the domain. This host is used
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to query the DNS list of the domain.
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.TP
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.BI "\-\-subdomains " "subdomainlist"\c
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.TP
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.BI "\-su " "subdomainlist"\c
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\&Comma separated list of subdomains that are added to hostnames. For
|
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example, if subdomainlist is "\|\c
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.I ,foo, foo.bar, foo.bar.zappa, foo.bar.zappa.hut.fi\c
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\|" then when host foobar is added to
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.B /etc/ssh_known_hosts
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file it has aliases "\|\c
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.I foobar, foobar.foo, foobar.foo.bar, foobar.foo.bar.zappa, foobar.foo.bar.zappa.hut.fi\c
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\|". The default action is to take all subparts of the host but the
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second last on a host by host basis. (The last element is usually the
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country code, and something like
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.I foobar.foo.bar.zappa.hut
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would not make sense.)
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.TP
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.BI "\-\-debug " "debug_level"\c
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.TP
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.BI "\-de " "debug_level"\c
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\&Set the debug level. Default is 5, bigger values give more output.
|
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Using a big value (like 999) will print lots of debugging output.
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.TP
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.BI "\-\-timeout " "ssh_exec_timeout"\c
|
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.TP
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.BI "\-ti " "ssh_exec_timeout"\c
|
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\&Timeout when executing
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.B ssh
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command. The default is 60 seconds.
|
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|
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.TP
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.BI "\-\-pingtimeout " "ping_timeout"\c
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.TP
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.BI "\-pi " "ping_timeout"\c
|
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\&Timeout when trying to ping the ssh port. The default is 3 seconds.
|
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|
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.TP
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.BI "\-\-passwordtimeout " "timeout_when_asking_password"\c
|
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.TP
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.BI "\-pa " "timeout_when_asking_password"\c
|
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\&Timeout when asking password for ssh command. Default is that no
|
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passwords are queried. Use value 0 to have no timeout for password queries.
|
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|
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.TP
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.BI "\-\-notrustdaemon"\c
|
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.TP
|
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.BI "\-notr"\c
|
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\&If the
|
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.B ssh
|
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command fails, use the public key stored in the local known hosts file
|
||||
and trust it is the correct key for the host. If this option is not
|
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given such entries are commented out in the generated
|
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.B /etc/ssh_known_hosts
|
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file.
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|
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.TP
|
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.BI "\-\-norecursive"\c
|
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.TP
|
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.BI "\-nor"\c
|
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\&Tell
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.B make-ssh-known-hosts
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that it should only extract keys for the given domain, and not to be
|
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recursive.
|
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|
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.TP
|
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.BI "\-\-domainnamesplit"\c
|
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.TP
|
||||
.BI "\-do"\c
|
||||
\&Split the domainname to get the list of subdomains. Use this option
|
||||
if you don't want hostname to splitted to pieces automatically.
|
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Default splitting is done host by host basis. If the domain is
|
||||
zappa.hut.fi, and the host name is foo.bar then default action adds
|
||||
entries "\|\c
|
||||
.I foo, foo.bar, foo.bar.zappa, foo.bar.zappa.hut.fi\c
|
||||
\|" and this options adds entries "\|\c
|
||||
.I foo.bar, foo.bar.zappa, foo.bar.zappa.hut.fi\c
|
||||
\|").
|
||||
|
||||
.TP
|
||||
.BI "\-\-silent"\c
|
||||
.TP
|
||||
.BI "\-si"\c
|
||||
\&Be silent.
|
||||
|
||||
.TP
|
||||
.BI "\-\-keyscan"\c
|
||||
.TP
|
||||
.BI "\-k"\c
|
||||
\&Output list of all hosts in format "ipaddr1,ipaddr2,...ipaddrn
|
||||
hostname.domain.co,hostname,ipaddr1,ipaddr2,all_other_hostname_entries".
|
||||
The output of this can be feeded to ssh-keyscan to fetch keys.
|
||||
|
||||
.TP
|
||||
.BI "\-\-nslookup " "path_to_nslookup_program"\c
|
||||
.TP
|
||||
.BI "\-n " "path_to_nslookup_program"\c
|
||||
\&Path to the
|
||||
.B nslookup
|
||||
program.
|
||||
|
||||
.TP
|
||||
.BI "\-\-ssh " "path_to_ssh_program"\c
|
||||
.TP
|
||||
.BI "\-ss " "path_to_ssh_program"\c
|
||||
\&Path to the
|
||||
.B ssh
|
||||
program, including all options.
|
||||
|
||||
.SH EXAMPLES
|
||||
.LP
|
||||
The following command:
|
||||
.IP
|
||||
.B example# make-ssh-known-hosts cs.hut.fi > \c
|
||||
.B /etc/ssh_known_hosts
|
||||
.LP
|
||||
finds all public keys of the hosts in
|
||||
.B cs.hut.fi
|
||||
domain and put them to
|
||||
.B /etc/ssh_known_hosts
|
||||
file splitting domain names on a per host basis.
|
||||
.LP
|
||||
The command
|
||||
.IP
|
||||
.B example% make-ssh-known-hosts hut.fi '^wks=.*ssh' > \c
|
||||
.B hut-hosts
|
||||
.LP
|
||||
finds all hosts in
|
||||
.B hut.fi
|
||||
domain, and its subdomains having own name server (cs.hut.fi,
|
||||
tf.hut.fi, tky.hut.fi) that have ssh service and puts their public key
|
||||
to hut-hosts file. This would require that the domain name server of
|
||||
hut.fi would define all hosts running ssh to have entry ssh in their
|
||||
WKS record. Because nobody yet adds ssh to WKS, it would be better to
|
||||
use command
|
||||
.IP
|
||||
.B example% make-ssh-known-hosts hut.fi '^wks=.*telnet' > \c
|
||||
.B hut-hosts
|
||||
.LP
|
||||
that would take those host having telnet service. This uses default
|
||||
subdomain list.
|
||||
|
||||
.LP
|
||||
The command:
|
||||
.IP
|
||||
.B example% make-ssh-known-hosts hut.fi 'dipoli.hut.fi' '^hinfo=.*(mac|pc)' > \c
|
||||
.B dipoli-hosts
|
||||
.LP
|
||||
finds all hosts in hut.fi domain that are in dipoli.hut.fi subdomain
|
||||
(note dipoli.hut.fi does not have own name server so its entries are
|
||||
in hut.fi-server) and that are not Mac or PC.
|
||||
|
||||
.SH FILES
|
||||
.ta 3i
|
||||
/etc/ssh_known_hosts Global host public key list
|
||||
|
||||
.SH "SEE ALSO"
|
||||
.BR ssh (1),
|
||||
.BR sshd (8),
|
||||
.BR ssh-keygen (1),
|
||||
.BR ping (8),
|
||||
.BR nslookup (8),
|
||||
.BR perl (1),
|
||||
.BR perlre (1)
|
||||
|
||||
.SH AUTHOR
|
||||
Tero Kivinen <kivinen@hut.fi>
|
||||
|
||||
.SH COPYING
|
||||
.LP
|
||||
Permission is granted to make and distribute verbatim copies of
|
||||
this manual provided the copyright notice and this permission notice
|
||||
are preserved on all copies.
|
||||
.LP
|
||||
Permission is granted to copy and distribute modified versions of this
|
||||
manual under the conditions for verbatim copying, provided that the
|
||||
entire resulting derived work is distributed under the terms of a
|
||||
permission notice identical to this one.
|
||||
.LP
|
||||
Permission is granted to copy and distribute translations of this
|
||||
manual into another language, under the above conditions for modified
|
||||
versions, except that this permission notice may be included in
|
||||
translations approved by the the author instead of in the original
|
||||
English.
|
||||
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