annotate dropbear.8 @ 619:35d27c1d0ee7

Fix leak found by Klocwork
author Matt Johnston <matt@ucc.asn.au>
date Thu, 07 Apr 2011 13:38:27 +0000
parents c470649fb627
children 4b47ff154ff6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
3 dropbear \- lightweight SSH2 server
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
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
6 [\-FEmwsgjki] [\-b
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
7 .I banner\fR] [\-d
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
8 .I dsskey\fR] [\-r
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
9 .I rsakey\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
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
13 is a SSH 2 server designed to be small enough to be used in small memory
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
14 environments, while still being functional and secure enough for general use.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
15 .SH OPTIONS
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
16 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
17 .B \-b \fIbanner
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
18 bannerfile.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
19 Display the contents of the file
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
20 .I banner
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
21 before user login (default: none).
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
22 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
23 .B \-d \fIdsskey
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
24 dsskeyfile.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
25 Use the contents of the file
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
26 .I dsskey
514
e30a962c09b9 Mention DSS and DSA being the same thing
Matt Johnston <matt@ucc.asn.au>
parents: 510
diff changeset
27 for the DSS host key (default: /etc/dropbear/dropbear_dss_host_key).
e30a962c09b9 Mention DSS and DSA being the same thing
Matt Johnston <matt@ucc.asn.au>
parents: 510
diff changeset
28 Note that
e30a962c09b9 Mention DSS and DSA being the same thing
Matt Johnston <matt@ucc.asn.au>
parents: 510
diff changeset
29 some SSH implementations
e30a962c09b9 Mention DSS and DSA being the same thing
Matt Johnston <matt@ucc.asn.au>
parents: 510
diff changeset
30 use the term "DSA" rather than "DSS", they mean the same thing.
128
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
31 This file is generated with
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
32 .BR dropbearkey (8).
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
33 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
34 .B \-r \fIrsakey
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
35 rsakeyfile.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
36 Use the contents of the file
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
37 .I rsakey
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
38 for the rsa host key (default: /etc/dropbear/dropbear_rsa_host_key).
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
39 This file is generated with
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
40 .BR dropbearkey (8).
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 \-F
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
43 Don't fork into background.
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 \-E
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
46 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
47 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
48 .B \-m
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
49 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
50 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
51 .B \-w
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
52 Disallow root logins.
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 \-s
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
55 Disable password logins.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
56 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
57 .B \-g
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
58 Disable password logins for root.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
59 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
60 .B \-j
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
61 Disable local port forwarding.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
62 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
63 .B \-k
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
64 Disable remote port forwarding.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
65 .TP
438
4bfd22bac1dc Document -p [address:]port
Matt Johnston <matt@ucc.asn.au>
parents: 325
diff changeset
66 .B \-p \fI[address:]port
4bfd22bac1dc Document -p [address:]port
Matt Johnston <matt@ucc.asn.au>
parents: 325
diff changeset
67 Listen on specified
4bfd22bac1dc Document -p [address:]port
Matt Johnston <matt@ucc.asn.au>
parents: 325
diff changeset
68 .I address
4bfd22bac1dc Document -p [address:]port
Matt Johnston <matt@ucc.asn.au>
parents: 325
diff changeset
69 and TCP
4bfd22bac1dc Document -p [address:]port
Matt Johnston <matt@ucc.asn.au>
parents: 325
diff changeset
70 .I port.
4bfd22bac1dc Document -p [address:]port
Matt Johnston <matt@ucc.asn.au>
parents: 325
diff changeset
71 If just a port is given listen
4bfd22bac1dc Document -p [address:]port
Matt Johnston <matt@ucc.asn.au>
parents: 325
diff changeset
72 on all addresses.
128
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
73 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
74 .TP
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
75 .B \-i
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
76 Service program mode.
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
77 Use this option to run
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
78 .B dropbear
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
79 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
80 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
81 .TP
325
0e4f225b7e07 Add -N "no remote command" dbclient option.
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
82 .B \-P \fIpidfile
0e4f225b7e07 Add -N "no remote command" dbclient option.
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
83 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
84 default is /var/run/dropbear.pid
0e4f225b7e07 Add -N "no remote command" dbclient option.
Matt Johnston <matt@ucc.asn.au>
parents: 258
diff changeset
85 .TP
258
306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents: 181
diff changeset
86 .B \-a
306499676384 * add -g (dbclient) and -a (dropbear) options for allowing non-local
Matt Johnston <matt@ucc.asn.au>
parents: 181
diff changeset
87 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
88 .TP
3e6c536bc023 Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents: 446
diff changeset
89 .B \-W \fIwindowsize
3e6c536bc023 Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents: 446
diff changeset
90 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
91 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
92 default buffer size.
454
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 449
diff changeset
93 .TP
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 449
diff changeset
94 .B \-K \fItimeout_seconds
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 449
diff changeset
95 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
96 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
97 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
98 closed if there is a temporary lapse of network connectivity. A setting
7e43f5e473b9 - Add -K keepalive flag for dropbear and dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 449
diff changeset
99 if 0 disables keepalives.
515
fe30d2a2d626 - Document idle_timeout
Matt Johnston <matt@ucc.asn.au>
parents: 514
diff changeset
100 .TP
fe30d2a2d626 - Document idle_timeout
Matt Johnston <matt@ucc.asn.au>
parents: 514
diff changeset
101 .B \-I \fIidle_timeout
fe30d2a2d626 - Document idle_timeout
Matt Johnston <matt@ucc.asn.au>
parents: 514
diff changeset
102 Disconnect the session if no traffic is transmitted or received for \fIidle_timeout\fR seconds.
510
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
103 .SH FILES
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
104
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 Authorized Keys
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 ~/.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
109 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
110 .TP
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
111 [restrictions] ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIgAsp... [comment]
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
112
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
113 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
114 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
115 Available restrictions are:
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
116
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
117 .TP
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
118 .B no-port-forwarding
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
119 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
120
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
121 .TP
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
122 .B no-agent-forwarding
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
123 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
124
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
125 .TP
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
126 .B no-X11-forwarding
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
127 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
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 no-pty
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
131 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
132 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
133
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
134 .TP
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
135 .B command="\fIforced_command\fR"
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
136 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
137
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
138 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
139 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
140 key authentication.
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
141
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
142 .TP
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
143 Host Key Files
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
144
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
145 Host key files are read at startup from a standard location, by default
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
146 /etc/dropbear/dropbear_dss_host_key and /etc/dropbear/dropbear_rsa_host_key
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
147 or specified on the commandline with -d or -r. These are of the form generated
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
148 by dropbearkey.
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
149
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
150 .TP
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
151 Message Of The Day
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
152
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
153 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
154 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
155 by creating a file ~/.hushlogin .
b85507ade010 - Update manuals, include section on authorized_keys
Matt Johnston <matt@ucc.asn.au>
parents: 454
diff changeset
156
569
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
157 .SH ENVIRONMENT VARIABLES
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
158 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
159
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
160 The variables below are set for sessions as appropriate.
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
161
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
162 .TP
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
163 .B SSH_TTY
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
164 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
165
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
166 .TP
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
167 .B SSH_CONNECTION
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
168 Contains "<remote_ip> <remote_port> <local_ip> <local_port>".
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
169
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
170 .TP
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
171 .B DISPLAY
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
172 Set X11 forwarding is used.
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
173
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
174 .TP
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
175 .B SSH_ORIGINAL_COMMAND
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
176 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
177 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
178
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
179 .TP
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
180 .B SSH_AUTH_SOCK
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
181 Set to a forwarded ssh-agent connection.
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
182
6f472dc54da7 - Set $SSH_CONNECTION
Matt Johnston <matt@ucc.asn.au>
parents: 515
diff changeset
183
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
181
1916df7df911 * Add references in the manpages to the dbclient manpage
Matt Johnston <matt@ucc.asn.au>
parents: 128
diff changeset
190 dropbearkey(8), dbclient(1)
128
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
191 .P
a9dddd13c4ba Added dropbear.8 and dropbearkey.8 back in
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
192 http://matt.ucc.asn.au/dropbear/dropbear.html