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annotate dbclient.1 @ 479:e3db1f7a2e43

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- Split main socket var into ses.sock_in/ses.sock_out in preparation for -J proxy_cmd option (and some prelim options for that)
author Matt Johnston <matt@ucc.asn.au>
date Mon, 15 Sep 2008 12:51:50 +0000
parents d7b0c015fdc7
children d58c478bd399
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1 .TH dbclient 1
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2 .SH NAME
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3 dbclient \- lightweight SSH2 client
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4 .SH SYNOPSIS
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5 .B dbclient
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6 [\-Tt] [\-p
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7 .I port\fR] [\-i
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8 .I id\fR] [\-L
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9 .I l\fR:\fIh\fR:\fIr\fR] [\-R
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10 .I l\fR:\fIh\fR:\fIr\fR] [\-l
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11 .IR user ]
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12 .I host
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13 .SH DESCRIPTION
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14 .B dbclient
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15 is a SSH 2 client designed to be small enough to be used in small memory
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16 environments, while still being functional and secure enough for general use.
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17 .SH OPTIONS
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18 .TP
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19 .B \-p \fIport
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20 Remote port.
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21 Connect to port
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22 .I port
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23 on the remote host.
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24 Default is 22.
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25 .TP
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26 .B \-i \fIidfile
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27 Identity file.
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28 Read the identity from file
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29 .I idfile
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30 (multiple allowed).
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31 .TP
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32 .B \-L \fIlistenport\fR:\fIhost\fR:\fIport\fR
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33 Local port forwarding.
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34 Forward the port
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35 .I listenport
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36 on the local host through the SSH connection to port
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37 .I port
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38 on the host
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39 .IR host .
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40 .TP
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41 .B \-R \fIlistenport\fR:\fIhost\fR:\fIport\fR
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42 Remote port forwarding.
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43 Forward the port
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44 .I listenport
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45 on the remote host through the SSH connection to port
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46 .I port
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47 on the host
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48 .IR host .
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49 .TP
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50 .B \-l \fIuser
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51 Username.
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52 Login as
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53 .I user
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54 on the remote host.
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55 .TP
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56 .B \-t
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57 Allocate a pty.
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58 .TP
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59 .B \-T
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60 Don't allocate a pty.
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61 .TP
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62 .B \-N
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63 Don't request a remote shell or run any commands. Any command arguments are ignored.
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64 .TP
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65 .B \-f
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66 Fork into the background after authentication. A command argument (or -N) is required.
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67 This is useful when using password authentication.
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68 .TP
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69 .B \-g
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70 Allow non-local hosts to connect to forwarded ports. Applies to -L and -R
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71 forwarded ports, though remote connections to -R forwarded ports may be limited
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72 by the ssh server.
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73 .TP
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74 .B \-y
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75 Always accept hostkeys if they are unknown. If a hostkey mismatch occurs the
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76 connection will abort as normal.
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77 .TP
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78 .B \-W \fIwindowsize
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79 Specify the per-channel receive window buffer size. Increasing this
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80 may improve network performance at the expense of memory use. Use -h to see the
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81 default buffer size.
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82 .TP
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83 .B \-K \fItimeout_seconds
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84 Ensure that traffic is transmitted at a certain interval in seconds. This is
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85 useful for working around firewalls or routers that drop connections after
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86 a certain period of inactivity. The trade-off is that a session may be
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87 closed if there is a temporary lapse of network connectivity. A setting
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88 if 0 disables keepalives.
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89 .SH ENVIRONMENT
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90 .TP
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91 .B SSH_ASKPASS
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92 dbclient can use an external program to request a password from a user.
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93 SSH_ASKPASS should be set to the path of a program that will return a password
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94 on standard output. This program will only be used if either DISPLAY is set and
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95 standard input is not a TTY, or the environment variable SSH_ASKPASS_ALWAYS is
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96 set.
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97 .TP
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98 .B DROPBEAR_PASSWORD
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99 A password to use for remote authentication can be specified in the environment
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100 variable DROPBEAR_PASSWORD. Care should be taken that the password is not
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101 exposed to other users on a multi-user system, or stored in accessible files.
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102 .SH AUTHOR
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103 Matt Johnston ([email protected]).
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104 .br
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105 Gerrit Pape ([email protected]) wrote this manual page.
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106 .SH SEE ALSO
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107 dropbear(8), dropbearkey(8)
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108 .P
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109 http://matt.ucc.asn.au/dropbear/dropbear.html