dropbear: dropbear.8 annotate

annotate dropbear.8 @ 1053:fd3712d1ff7f

Better failure handling

author	Matt Johnston <matt@ucc.asn.au>
date	Sat, 28 Feb 2015 23:49:39 +0800
parents	17d874ae93a1
children	3c8403f4669d

rev	line source
128 a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 .TH dropbear 8
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 .SH NAME
821 f8b28a3de6cb Don't say "SSH 2" any more since protocol version 1 is irrelevant Matt Johnston <matt@ucc.asn.au> parents: 690 diff changeset	3 dropbear \- lightweight SSH server
128 a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 .SH SYNOPSIS
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5 .B dropbear
860 057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	6 [\-RFEmwsgjki] [\-b
057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	7 .I banner\fR]
057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	8 [\-r
057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	9 .I hostkeyfile\fR] [\-p
576 c470649fb627 Mention -p's address argument in manpage synopsis Matt Johnston <matt@ucc.asn.au> parents: 569 diff changeset	10 .IR [address:]port ]
128 a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11 .SH DESCRIPTION
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12 .B dropbear
946 17d874ae93a1 Add '-V' for version Matt Johnston <matt@ucc.asn.au> parents: 875 diff changeset	13 is a small SSH server
128 a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 .SH OPTIONS
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 .B \-b \fIbanner
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17 bannerfile.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 Display the contents of the file
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 .I banner
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 before user login (default: none).
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 .TP
860 057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	22 .B \-r \fIhostkey
128 a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 Use the contents of the file
860 057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	24 .I hostkey
057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	25 for the SSH hostkey.
128 a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26 This file is generated with
860 057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	27 .BR dropbearkey (1)
057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	28 or automatically with the '-R' option. See "Host Key Files" below.
128 a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 .TP
860 057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	30 .B \-R
875 6c7a15668d5a Log when generating a hostkey Matt Johnston <matt@ucc.asn.au> parents: 860 diff changeset	31 Generate hostkeys automatically. See "Host Key Files" below.
128 a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33 .B \-F
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 Don't fork into background.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36 .B \-E
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 Log to standard error rather than syslog.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	39 .B \-m
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40 Don't display the message of the day on login.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42 .B \-w
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43 Disallow root logins.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45 .B \-s
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46 Disable password logins.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 .B \-g
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49 Disable password logins for root.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 .B \-j
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 Disable local port forwarding.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 .B \-k
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 Disable remote port forwarding.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56 .TP
438 4bfd22bac1dc Document -p [address:]port Matt Johnston <matt@ucc.asn.au> parents: 325 diff changeset	57 .B \-p \fI[address:]port
4bfd22bac1dc Document -p [address:]port Matt Johnston <matt@ucc.asn.au> parents: 325 diff changeset	58 Listen on specified
4bfd22bac1dc Document -p [address:]port Matt Johnston <matt@ucc.asn.au> parents: 325 diff changeset	59 .I address
4bfd22bac1dc Document -p [address:]port Matt Johnston <matt@ucc.asn.au> parents: 325 diff changeset	60 and TCP
4bfd22bac1dc Document -p [address:]port Matt Johnston <matt@ucc.asn.au> parents: 325 diff changeset	61 .I port.
4bfd22bac1dc Document -p [address:]port Matt Johnston <matt@ucc.asn.au> parents: 325 diff changeset	62 If just a port is given listen
4bfd22bac1dc Document -p [address:]port Matt Johnston <matt@ucc.asn.au> parents: 325 diff changeset	63 on all addresses.
128 a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64 up to 10 can be specified (default 22 if none specified).
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 .B \-i
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67 Service program mode.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68 Use this option to run
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69 .B dropbear
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70 under TCP/IP servers like inetd, tcpsvd, or tcpserver.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 In program mode the \-F option is implied, and \-p options are ignored.
258 306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local Matt Johnston <matt@ucc.asn.au> parents: 181 diff changeset	72 .TP
325 0e4f225b7e07 Add -N "no remote command" dbclient option. Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	73 .B \-P \fIpidfile
0e4f225b7e07 Add -N "no remote command" dbclient option. Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	74 Specify a pidfile to create when running as a daemon. If not specified, the
0e4f225b7e07 Add -N "no remote command" dbclient option. Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	75 default is /var/run/dropbear.pid
0e4f225b7e07 Add -N "no remote command" dbclient option. Matt Johnston <matt@ucc.asn.au> parents: 258 diff changeset	76 .TP
258 306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local Matt Johnston <matt@ucc.asn.au> parents: 181 diff changeset	77 .B \-a
306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local Matt Johnston <matt@ucc.asn.au> parents: 181 diff changeset	78 Allow remote hosts to connect to forwarded ports.
449 3e6c536bc023 Add -W <windowsize> argument and document it. Matt Johnston <matt@ucc.asn.au> parents: 446 diff changeset	79 .TP
3e6c536bc023 Add -W <windowsize> argument and document it. Matt Johnston <matt@ucc.asn.au> parents: 446 diff changeset	80 .B \-W \fIwindowsize
3e6c536bc023 Add -W <windowsize> argument and document it. Matt Johnston <matt@ucc.asn.au> parents: 446 diff changeset	81 Specify the per-channel receive window buffer size. Increasing this
3e6c536bc023 Add -W <windowsize> argument and document it. Matt Johnston <matt@ucc.asn.au> parents: 446 diff changeset	82 may improve network performance at the expense of memory use. Use -h to see the
3e6c536bc023 Add -W <windowsize> argument and document it. Matt Johnston <matt@ucc.asn.au> parents: 446 diff changeset	83 default buffer size.
454 7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient Matt Johnston <matt@ucc.asn.au> parents: 449 diff changeset	84 .TP
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient Matt Johnston <matt@ucc.asn.au> parents: 449 diff changeset	85 .B \-K \fItimeout_seconds
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient Matt Johnston <matt@ucc.asn.au> parents: 449 diff changeset	86 Ensure that traffic is transmitted at a certain interval in seconds. This is
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient Matt Johnston <matt@ucc.asn.au> parents: 449 diff changeset	87 useful for working around firewalls or routers that drop connections after
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient Matt Johnston <matt@ucc.asn.au> parents: 449 diff changeset	88 a certain period of inactivity. The trade-off is that a session may be
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient Matt Johnston <matt@ucc.asn.au> parents: 449 diff changeset	89 closed if there is a temporary lapse of network connectivity. A setting
946 17d874ae93a1 Add '-V' for version Matt Johnston <matt@ucc.asn.au> parents: 875 diff changeset	90 if 0 disables keepalives. If no response is received for 3 consecutive keepalives the connection will be closed.
515 fe30d2a2d626 - Document idle_timeout Matt Johnston <matt@ucc.asn.au> parents: 514 diff changeset	91 .TP
fe30d2a2d626 - Document idle_timeout Matt Johnston <matt@ucc.asn.au> parents: 514 diff changeset	92 .B \-I \fIidle_timeout
fe30d2a2d626 - Document idle_timeout Matt Johnston <matt@ucc.asn.au> parents: 514 diff changeset	93 Disconnect the session if no traffic is transmitted or received for \fIidle_timeout\fR seconds.
946 17d874ae93a1 Add '-V' for version Matt Johnston <matt@ucc.asn.au> parents: 875 diff changeset	94 .TP
17d874ae93a1 Add '-V' for version Matt Johnston <matt@ucc.asn.au> parents: 875 diff changeset	95 .B \-V
17d874ae93a1 Add '-V' for version Matt Johnston <matt@ucc.asn.au> parents: 875 diff changeset	96 Print the version
17d874ae93a1 Add '-V' for version Matt Johnston <matt@ucc.asn.au> parents: 875 diff changeset	97
510 b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	98 .SH FILES
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	99
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	100 .TP
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	101 Authorized Keys
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	102
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	103 ~/.ssh/authorized_keys can be set up to allow remote login with a RSA or DSS
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	104 key. Each line is of the form
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	105 .TP
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	106 [restrictions] ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIgAsp... [comment]
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	107
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	108 and can be extracted from a Dropbear private host key with "dropbearkey -y". This is the same format as used by OpenSSH, though the restrictions are a subset (keys with unknown restrictions are ignored).
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	109 Restrictions are comma separated, with double quotes around spaces in arguments.
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	110 Available restrictions are:
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	111
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	112 .TP
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	113 .B no-port-forwarding
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	114 Don't allow port forwarding for this connection
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	115
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	116 .TP
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	117 .B no-agent-forwarding
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	118 Don't allow agent forwarding for this connection
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	119
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	120 .TP
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	121 .B no-X11-forwarding
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	122 Don't allow X11 forwarding for this connection
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	123
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	124 .TP
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	125 .B no-pty
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	126 Disable PTY allocation. Note that a user can still obtain most of the
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	127 same functionality with other means even if no-pty is set.
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	128
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	129 .TP
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	130 .B command="\fIforced_command\fR"
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	131 Disregard the command provided by the user and always run \fIforced_command\fR.
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	132
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	133 The authorized_keys file and its containing ~/.ssh directory must only be
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	134 writable by the user, otherwise Dropbear will not allow a login using public
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	135 key authentication.
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	136
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	137 .TP
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	138 Host Key Files
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	139
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	140 Host key files are read at startup from a standard location, by default
860 057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	141 /etc/dropbear/dropbear_dss_host_key, /etc/dropbear/dropbear_rsa_host_key, and
057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	142 /etc/dropbear/dropbear-ecdsa_host_key
057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	143 or specified on the commandline with -r. These are of the form generated
057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	144 by dropbearkey. The -R option can be used to automatically generate keys
057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	145 in the default location - keys will be generated after startup when the first
057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	146 connection is established. This had the benefit that the system /dev/urandom
057204b3dd61 docs for ecdsa Matt Johnston <matt@ucc.asn.au> parents: 821 diff changeset	147 random number source has a better chance of being securely seeded.
510 b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	148
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	149 .TP
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	150 Message Of The Day
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	151
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	152 By default the file /etc/motd will be printed for any login shell (unless
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	153 disabled at compile-time). This can also be disabled per-user
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	154 by creating a file ~/.hushlogin .
b85507ade010 - Update manuals, include section on authorized_keys Matt Johnston <matt@ucc.asn.au> parents: 454 diff changeset	155
569 6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	156 .SH ENVIRONMENT VARIABLES
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	157 Dropbear sets the standard variables USER, LOGNAME, HOME, SHELL, PATH, and TERM.
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	158
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	159 The variables below are set for sessions as appropriate.
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	160
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	161 .TP
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	162 .B SSH_TTY
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	163 This is set to the allocated TTY if a PTY was used.
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	164
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	165 .TP
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	166 .B SSH_CONNECTION
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	167 Contains "<remote_ip> <remote_port> <local_ip> <local_port>".
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	168
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	169 .TP
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	170 .B DISPLAY
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	171 Set X11 forwarding is used.
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	172
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	173 .TP
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	174 .B SSH_ORIGINAL_COMMAND
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	175 If a 'command=' authorized_keys option was used, the original command is specified
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	176 in this variable. If a shell was requested this is set to an empty value.
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	177
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	178 .TP
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	179 .B SSH_AUTH_SOCK
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	180 Set to a forwarded ssh-agent connection.
6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	181
821 f8b28a3de6cb Don't say "SSH 2" any more since protocol version 1 is irrelevant Matt Johnston <matt@ucc.asn.au> parents: 690 diff changeset	182 .SH NOTES
f8b28a3de6cb Don't say "SSH 2" any more since protocol version 1 is irrelevant Matt Johnston <matt@ucc.asn.au> parents: 690 diff changeset	183 Dropbear only supports SSH protocol version 2.
569 6f472dc54da7 - Set $SSH_CONNECTION Matt Johnston <matt@ucc.asn.au> parents: 515 diff changeset	184
128 a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	185 .SH AUTHOR
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186 Matt Johnston ([email protected]).
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	187 .br
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	188 Gerrit Pape ([email protected]) wrote this manual page.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	189 .SH SEE ALSO
821 f8b28a3de6cb Don't say "SSH 2" any more since protocol version 1 is irrelevant Matt Johnston <matt@ucc.asn.au> parents: 690 diff changeset	190 dropbearkey(1), dbclient(1), dropbearconvert(1)
128 a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in Matt Johnston <matt@ucc.asn.au> parents: diff changeset	191 .P
690 4b47ff154ff6 Document "-m" and "-c" Matt Johnston <matt@ucc.asn.au> parents: 576 diff changeset	192 https://matt.ucc.asn.au/dropbear/dropbear.html

Mercurial > dropbear

annotate dropbear.8 @ 1053:fd3712d1ff7f