diff options
Diffstat (limited to 'ssh.0')
-rw-r--r-- | ssh.0 | 44 |
1 files changed, 21 insertions, 23 deletions
@@ -1,4 +1,4 @@ | |||
1 | SSH(1) OpenBSD Reference Manual SSH(1) | 1 | SSH(1) General Commands Manual SSH(1) |
2 | 2 | ||
3 | NAME | 3 | NAME |
4 | ssh - OpenSSH SSH client (remote login program) | 4 | ssh - OpenSSH SSH client (remote login program) |
@@ -17,8 +17,9 @@ DESCRIPTION | |||
17 | ssh (SSH client) is a program for logging into a remote machine and for | 17 | ssh (SSH client) is a program for logging into a remote machine and for |
18 | executing commands on a remote machine. It is intended to replace rlogin | 18 | executing commands on a remote machine. It is intended to replace rlogin |
19 | and rsh, and provide secure encrypted communications between two | 19 | and rsh, and provide secure encrypted communications between two |
20 | untrusted hosts over an insecure network. X11 connections and arbitrary | 20 | untrusted hosts over an insecure network. X11 connections, arbitrary TCP |
21 | TCP ports can also be forwarded over the secure channel. | 21 | ports and UNIX-domain sockets can also be forwarded over the secure |
22 | channel. | ||
22 | 23 | ||
23 | ssh connects and logs into the specified hostname (with optional user | 24 | ssh connects and logs into the specified hostname (with optional user |
24 | name). The user must prove his/her identity to the remote machine using | 25 | name). The user must prove his/her identity to the remote machine using |
@@ -58,28 +59,21 @@ DESCRIPTION | |||
58 | address. | 59 | address. |
59 | 60 | ||
60 | -C Requests compression of all data (including stdin, stdout, | 61 | -C Requests compression of all data (including stdin, stdout, |
61 | stderr, and data for forwarded X11 and TCP connections). The | 62 | stderr, and data for forwarded X11, TCP and UNIX-domain |
62 | compression algorithm is the same used by gzip(1), and the | 63 | connections). The compression algorithm is the same used by |
63 | ``level'' can be controlled by the CompressionLevel option for | 64 | gzip(1), and the ``level'' can be controlled by the |
64 | protocol version 1. Compression is desirable on modem lines and | 65 | CompressionLevel option for protocol version 1. Compression is |
65 | other slow connections, but will only slow down things on fast | 66 | desirable on modem lines and other slow connections, but will |
66 | networks. The default value can be set on a host-by-host basis | 67 | only slow down things on fast networks. The default value can be |
67 | in the configuration files; see the Compression option. | 68 | set on a host-by-host basis in the configuration files; see the |
69 | Compression option. | ||
68 | 70 | ||
69 | -c cipher_spec | 71 | -c cipher_spec |
70 | Selects the cipher specification for encrypting the session. | 72 | Selects the cipher specification for encrypting the session. |
71 | 73 | ||
72 | Protocol version 1 allows specification of a single cipher. The | 74 | Protocol version 1 allows specification of a single cipher. The |
73 | supported values are ``3des'', ``blowfish'', and ``des''. 3des | 75 | supported values are ``3des'', ``blowfish'', and ``des''. For |
74 | (triple-des) is an encrypt-decrypt-encrypt triple with three | 76 | protocol version 2, cipher_spec is a comma-separated list of |
75 | different keys. It is believed to be secure. blowfish is a fast | ||
76 | block cipher; it appears very secure and is much faster than | ||
77 | 3des. des is only supported in the ssh client for | ||
78 | interoperability with legacy protocol 1 implementations that do | ||
79 | not support the 3des cipher. Its use is strongly discouraged due | ||
80 | to cryptographic weaknesses. The default is ``3des''. | ||
81 | |||
82 | For protocol version 2, cipher_spec is a comma-separated list of | ||
83 | ciphers listed in order of preference. See the Ciphers keyword | 77 | ciphers listed in order of preference. See the Ciphers keyword |
84 | in ssh_config(5) for more information. | 78 | in ssh_config(5) for more information. |
85 | 79 | ||
@@ -133,7 +127,9 @@ DESCRIPTION | |||
133 | port forwards to be successfully established before placing | 127 | port forwards to be successfully established before placing |
134 | itself in the background. | 128 | itself in the background. |
135 | 129 | ||
136 | -g Allows remote hosts to connect to local forwarded ports. | 130 | -g Allows remote hosts to connect to local forwarded ports. If used |
131 | on a multiplexed connection, then this option must be specified | ||
132 | on the master process. | ||
137 | 133 | ||
138 | -I pkcs11 | 134 | -I pkcs11 |
139 | Specify the PKCS#11 shared library ssh should use to communicate | 135 | Specify the PKCS#11 shared library ssh should use to communicate |
@@ -286,6 +282,8 @@ DESCRIPTION | |||
286 | SendEnv | 282 | SendEnv |
287 | ServerAliveInterval | 283 | ServerAliveInterval |
288 | ServerAliveCountMax | 284 | ServerAliveCountMax |
285 | StreamLocalBindMask | ||
286 | StreamLocalBindUnlink | ||
289 | StrictHostKeyChecking | 287 | StrictHostKeyChecking |
290 | TCPKeepAlive | 288 | TCPKeepAlive |
291 | Tunnel | 289 | Tunnel |
@@ -890,7 +888,7 @@ EXIT STATUS | |||
890 | 888 | ||
891 | SEE ALSO | 889 | SEE ALSO |
892 | scp(1), sftp(1), ssh-add(1), ssh-agent(1), ssh-keygen(1), ssh-keyscan(1), | 890 | scp(1), sftp(1), ssh-add(1), ssh-agent(1), ssh-keygen(1), ssh-keyscan(1), |
893 | tun(4), hosts.equiv(5), ssh_config(5), ssh-keysign(8), sshd(8) | 891 | tun(4), ssh_config(5), ssh-keysign(8), sshd(8) |
894 | 892 | ||
895 | STANDARDS | 893 | STANDARDS |
896 | S. Lehtinen and C. Lonvick, The Secure Shell (SSH) Protocol Assigned | 894 | S. Lehtinen and C. Lonvick, The Secure Shell (SSH) Protocol Assigned |
@@ -943,4 +941,4 @@ AUTHORS | |||
943 | created OpenSSH. Markus Friedl contributed the support for SSH protocol | 941 | created OpenSSH. Markus Friedl contributed the support for SSH protocol |
944 | versions 1.5 and 2.0. | 942 | versions 1.5 and 2.0. |
945 | 943 | ||
946 | OpenBSD 5.5 December 7, 2013 OpenBSD 5.5 | 944 | OpenBSD 5.6 July 24, 2014 OpenBSD 5.6 |