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Diff for /src/usr.bin/ssh/ssh.1 between version 1.139 and 1.139.2.6

version 1.139, 2001/10/01 21:51:16 version 1.139.2.6, 2002/06/26 18:22:36
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 .Pp  .Pp
 .Ss SSH protocol version 2  .Ss SSH protocol version 2
 .Pp  .Pp
 When a user connects using the protocol version 2  When a user connects using protocol version 2
 different authentication methods are available.  similar authentication methods are available.
 Using the default values for  Using the default values for
 .Cm PreferredAuthentications ,  .Cm PreferredAuthentications ,
 the client will try to authenticate first using the hostbased method;  the client will try to authenticate first using the hostbased method;
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 List forwarded connections  List forwarded connections
 .It Cm ~&  .It Cm ~&
 Background ssh at logout when waiting for forwarded connection / X11 sessions  Background ssh at logout when waiting for forwarded connection / X11 sessions
 to terminate (protocol version 1 only)  to terminate
 .It Cm ~?  .It Cm ~?
 Display a list of escape characters  Display a list of escape characters
   .It Cm ~C
   Open command line (only useful for adding port forwardings using the
   .Fl L
   and
   .Fl R
   options)
 .It Cm ~R  .It Cm ~R
 Request rekeying of the connection (only useful for SSH protocol version 2  Request rekeying of the connection (only useful for SSH protocol version 2
 and if the peer supports it)  and if the peer supports it)
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 otherwise be used to circumvent the encryption.  otherwise be used to circumvent the encryption.
 The  The
 .Cm StrictHostKeyChecking  .Cm StrictHostKeyChecking
 option (see below) can be used to prevent logins to machines whose  option can be used to prevent logins to machines whose
 host key is not known or has changed.  host key is not known or has changed.
 .Pp  .Pp
 The options are as follows:  The options are as follows:
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 .It Fl g  .It Fl g
 Allows remote hosts to connect to local forwarded ports.  Allows remote hosts to connect to local forwarded ports.
 .It Fl i Ar identity_file  .It Fl i Ar identity_file
 Selects the file from which the identity (private key) for  Selects a file from which the identity (private key) for
 RSA or DSA authentication is read.  RSA or DSA authentication is read.
 Default is  The default is
 .Pa $HOME/.ssh/identity  .Pa $HOME/.ssh/identity
 in the user's home directory.  for protocol version 1, and
   .Pa $HOME/.ssh/id_rsa
   and
   .Pa $HOME/.ssh/id_dsa
   for protocol version 2.
 Identity files may also be specified on  Identity files may also be specified on
 a per-host basis in the configuration file.  a per-host basis in the configuration file.
 It is possible to have multiple  It is possible to have multiple
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 .It Fl q  .It Fl q
 Quiet mode.  Quiet mode.
 Causes all warning and diagnostic messages to be suppressed.  Causes all warning and diagnostic messages to be suppressed.
 Only fatal errors are displayed.  
 .It Fl s  .It Fl s
 May be used to request invocation of a subsystem on the remote system. Subsystems are a feature of the SSH2 protocol which facilitate the use  May be used to request invocation of a subsystem on the remote system. Subsystems are a feature of the SSH2 protocol which facilitate the use
 of SSH as a secure transport for other applications (eg. sftp). The  of SSH as a secure transport for other applications (eg. sftp). The
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 .Dq level  .Dq level
 can be controlled by the  can be controlled by the
 .Cm CompressionLevel  .Cm CompressionLevel
 option (see below).  option.
 Compression is desirable on modem lines and other  Compression is desirable on modem lines and other
 slow connections, but will only slow down things on fast networks.  slow connections, but will only slow down things on fast networks.
 The default value can be set on a host-by-host basis in the  The default value can be set on a host-by-host basis in the
 configuration files; see the  configuration files; see the
 .Cm Compression  .Cm Compression
 option below.  option.
 .It Fl F Ar configfile  .It Fl F Ar configfile
 Specifies an alternative per-user configuration file.  Specifies an alternative per-user configuration file.
 If a configuration file is given on the command line,  If a configuration file is given on the command line,
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 .El  .El
 .Sh CONFIGURATION FILES  .Sh CONFIGURATION FILES
 .Nm  .Nm
 obtains configuration data from the following sources in  may additionally obtain configuration data from
 the following order:  a per-user configuration file and a system-wide configuration file.
 command line options, user's configuration file  The file format and configuration options are described in
 .Pq Pa $HOME/.ssh/config ,  .Xr ssh_config 5 .
 and system-wide configuration file  
 .Pq Pa /etc/ssh_config .  
 For each parameter, the first obtained value  
 will be used.  
 The configuration files contain sections bracketed by  
 .Dq Host  
 specifications, and that section is only applied for hosts that  
 match one of the patterns given in the specification.  
 The matched host name is the one given on the command line.  
 .Pp  
 Since the first obtained value for each parameter is used, more  
 host-specific declarations should be given near the beginning of the  
 file, and general defaults at the end.  
 .Pp  
 The configuration file has the following format:  
 .Pp  
 Empty lines and lines starting with  
 .Ql #  
 are comments.  
 .Pp  
 Otherwise a line is of the format  
 .Dq keyword arguments .  
 Configuration options may be separated by whitespace or  
 optional whitespace and exactly one  
 .Ql = ;  
 the latter format is useful to avoid the need to quote whitespace  
 when specifying configuration options using the  
 .Nm ssh ,  
 .Nm scp  
 and  
 .Nm sftp  
 .Fl o  
 option.  
 .Pp  
 The possible  
 keywords and their meanings are as follows (note that  
 keywords are case-insensitive and arguments are case-sensitive):  
 .Bl -tag -width Ds  
 .It Cm Host  
 Restricts the following declarations (up to the next  
 .Cm Host  
 keyword) to be only for those hosts that match one of the patterns  
 given after the keyword.  
 .Ql \&*  
 and  
 .Ql ?  
 can be used as wildcards in the  
 patterns.  
 A single  
 .Ql \&*  
 as a pattern can be used to provide global  
 defaults for all hosts.  
 The host is the  
 .Ar hostname  
 argument given on the command line (i.e., the name is not converted to  
 a canonicalized host name before matching).  
 .It Cm AFSTokenPassing  
 Specifies whether to pass AFS tokens to remote host.  
 The argument to this keyword must be  
 .Dq yes  
 or  
 .Dq no .  
 This option applies to protocol version 1 only.  
 .It Cm BatchMode  
 If set to  
 .Dq yes ,  
 passphrase/password querying will be disabled.  
 This option is useful in scripts and other batch jobs where no user  
 is present to supply the password.  
 The argument must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq no .  
 .It Cm BindAddress  
 Specify the interface to transmit from on machines with multiple  
 interfaces or aliased addresses.  
 Note that this option does not work if  
 .Cm UsePrivilegedPort  
 is set to  
 .Dq yes .  
 .It Cm CheckHostIP  
 If this flag is set to  
 .Dq yes ,  
 ssh will additionally check the host IP address in the  
 .Pa known_hosts  
 file.  
 This allows ssh to detect if a host key changed due to DNS spoofing.  
 If the option is set to  
 .Dq no ,  
 the check will not be executed.  
 The default is  
 .Dq yes .  
 .It Cm Cipher  
 Specifies the cipher to use for encrypting the session  
 in protocol version 1.  
 Currently,  
 .Dq blowfish ,  
 .Dq 3des ,  
 and  
 .Dq des  
 are supported.  
 .Ar des  
 is only supported in the  
 .Nm  
 client for interoperability with legacy protocol 1 implementations  
 that do not support the  
 .Ar 3des  
 cipher.  Its use is strongly discouraged due to cryptographic  
 weaknesses.  
 The default is  
 .Dq 3des .  
 .It Cm Ciphers  
 Specifies the ciphers allowed for protocol version 2  
 in order of preference.  
 Multiple ciphers must be comma-separated.  
 The default is  
 .Pp  
 .Bd -literal  
   ``aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,  
     aes192-cbc,aes256-cbc''  
 .Ed  
 .It Cm ClearAllForwardings  
 Specifies that all local, remote and dynamic port forwardings  
 specified in the configuration files or on the command line be  
 cleared.  This option is primarily useful when used from the  
 .Nm  
 command line to clear port forwardings set in  
 configuration files, and is automatically set by  
 .Xr scp 1  
 and  
 .Xr sftp 1 .  
 The argument must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq no .  
 .It Cm Compression  
 Specifies whether to use compression.  
 The argument must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq no .  
 .It Cm CompressionLevel  
 Specifies the compression level to use if compression is enabled.  
 The argument must be an integer from 1 (fast) to 9 (slow, best).  
 The default level is 6, which is good for most applications.  
 The meaning of the values is the same as in  
 .Xr gzip 1 .  
 Note that this option applies to protocol version 1 only.  
 .It Cm ConnectionAttempts  
 Specifies the number of tries (one per second) to make before falling  
 back to rsh or exiting.  
 The argument must be an integer.  
 This may be useful in scripts if the connection sometimes fails.  
 The default is 1.  
 .It Cm DynamicForward  
 Specifies that a TCP/IP port on the local machine be forwarded  
 over the secure channel, and the application  
 protocol is then used to determine where to connect to from the  
 remote machine.  The argument must be a port number.  
 Currently the SOCKS4 protocol is supported, and  
 .Nm  
 will act as a SOCKS4 server.  
 Multiple forwardings may be specified, and  
 additional forwardings can be given on the command line.  Only  
 the superuser can forward privileged ports.  
 .It Cm EscapeChar  
 Sets the escape character (default:  
 .Ql ~ ) .  
 The escape character can also  
 be set on the command line.  
 The argument should be a single character,  
 .Ql ^  
 followed by a letter, or  
 .Dq none  
 to disable the escape  
 character entirely (making the connection transparent for binary  
 data).  
 .It Cm FallBackToRsh  
 Specifies that if connecting via  
 .Nm  
 fails due to a connection refused error (there is no  
 .Xr sshd 8  
 listening on the remote host),  
 .Xr rsh 1  
 should automatically be used instead (after a suitable warning about  
 the session being unencrypted).  
 The argument must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq no .  
 .It Cm ForwardAgent  
 Specifies whether the connection to the authentication agent (if any)  
 will be forwarded to the remote machine.  
 The argument must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq no .  
 .It Cm ForwardX11  
 Specifies whether X11 connections will be automatically redirected  
 over the secure channel and  
 .Ev DISPLAY  
 set.  
 The argument must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq no .  
 .It Cm GatewayPorts  
 Specifies whether remote hosts are allowed to connect to local  
 forwarded ports.  
 By default,  
 .Nm  
 binds local port forwardings to the loopback addresss.  This  
 prevents other remote hosts from connecting to forwarded ports.  
 .Cm GatewayPorts  
 can be used to specify that  
 .Nm  
 should bind local port forwardings to the wildcard address,  
 thus allowing remote hosts to connect to forwarded ports.  
 The argument must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq no .  
 .It Cm GlobalKnownHostsFile  
 Specifies a file to use for the global  
 host key database instead of  
 .Pa /etc/ssh_known_hosts .  
 .It Cm HostbasedAuthentication  
 Specifies whether to try rhosts based authentication with public key  
 authentication.  
 The argument must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq no .  
 This option applies to protocol version 2 only and  
 is similar to  
 .Cm RhostsRSAAuthentication .  
 .It Cm HostKeyAlgorithms  
 Specifies the protocol version 2 host key algorithms  
 that the client wants to use in order of preference.  
 The default for this option is:  
 .Dq ssh-rsa,ssh-dss  
 .It Cm HostKeyAlias  
 Specifies an alias that should be used instead of the  
 real host name when looking up or saving the host key  
 in the host key database files.  
 This option is useful for tunneling ssh connections  
 or for multiple servers running on a single host.  
 .It Cm HostName  
 Specifies the real host name to log into.  
 This can be used to specify nicknames or abbreviations for hosts.  
 Default is the name given on the command line.  
 Numeric IP addresses are also permitted (both on the command line and in  
 .Cm HostName  
 specifications).  
 .It Cm IdentityFile  
 Specifies the file from which the user's RSA or DSA authentication identity  
 is read (default  
 .Pa $HOME/.ssh/identity  
 in the user's home directory).  
 Additionally, any identities represented by the authentication agent  
 will be used for authentication.  
 The file name may use the tilde  
 syntax to refer to a user's home directory.  
 It is possible to have  
 multiple identity files specified in configuration files; all these  
 identities will be tried in sequence.  
 .It Cm KeepAlive  
 Specifies whether the system should send keepalive messages to the  
 other side.  
 If they are sent, death of the connection or crash of one  
 of the machines will be properly noticed.  
 However, this means that  
 connections will die if the route is down temporarily, and some people  
 find it annoying.  
 .Pp  
 The default is  
 .Dq yes  
 (to send keepalives), and the client will notice  
 if the network goes down or the remote host dies.  
 This is important in scripts, and many users want it too.  
 .Pp  
 To disable keepalives, the value should be set to  
 .Dq no  
 in both the server and the client configuration files.  
 .It Cm KerberosAuthentication  
 Specifies whether Kerberos authentication will be used.  
 The argument to this keyword must be  
 .Dq yes  
 or  
 .Dq no .  
 .It Cm KerberosTgtPassing  
 Specifies whether a Kerberos TGT will be forwarded to the server.  
 This will only work if the Kerberos server is actually an AFS kaserver.  
 The argument to this keyword must be  
 .Dq yes  
 or  
 .Dq no .  
 .It Cm LocalForward  
 Specifies that a TCP/IP port on the local machine be forwarded over  
 the secure channel to the specified host and port from the remote machine.  
 The first argument must be a port number, and the second must be  
 .Ar host:port .  
 IPv6 addresses can be specified with an alternative syntax:  
 .Ar host/port .  
 Multiple forwardings may be specified, and additional  
 forwardings can be given on the command line.  
 Only the superuser can forward privileged ports.  
 .It Cm LogLevel  
 Gives the verbosity level that is used when logging messages from  
 .Nm ssh .  
 The possible values are:  
 QUIET, FATAL, ERROR, INFO, VERBOSE and DEBUG.  
 The default is INFO.  
 .It Cm MACs  
 Specifies the MAC (message authentication code) algorithms  
 in order of preference.  
 The MAC algorithm is used in protocol version 2  
 for data integrity protection.  
 Multiple algorithms must be comma-separated.  
 The default is  
 .Dq hmac-md5,hmac-sha1,hmac-ripemd160,hmac-sha1-96,hmac-md5-96 .  
 .It Cm NoHostAuthenticationForLocalhost  
 This option can be used if the home directory is shared across machines.  
 In this case localhost will refer to a different machine on each of  
 the machines and the user will get many warnings about changed host keys.  
 However, this option disables host authentication for localhost.  
 The argument to this keyword must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is to check the host key for localhost.  
 .It Cm NumberOfPasswordPrompts  
 Specifies the number of password prompts before giving up.  
 The argument to this keyword must be an integer.  
 Default is 3.  
 .It Cm PasswordAuthentication  
 Specifies whether to use password authentication.  
 The argument to this keyword must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq yes .  
 .It Cm Port  
 Specifies the port number to connect on the remote host.  
 Default is 22.  
 .It Cm PreferredAuthentications  
 Specifies the order in which the client should try protocol 2  
 authentication methods. This allows a client to prefer one method (e.g.  
 .Cm keyboard-interactive )  
 over another method (e.g.  
 .Cm password )  
 The default for this option is:  
 .Dq hostbased,publickey,keyboard-interactive,password  
 .It Cm Protocol  
 Specifies the protocol versions  
 .Nm  
 should support in order of preference.  
 The possible values are  
 .Dq 1  
 and  
 .Dq 2 .  
 Multiple versions must be comma-separated.  
 The default is  
 .Dq 2,1 .  
 This means that  
 .Nm  
 tries version 2 and falls back to version 1  
 if version 2 is not available.  
 .It Cm ProxyCommand  
 Specifies the command to use to connect to the server.  
 The command  
 string extends to the end of the line, and is executed with  
 .Pa /bin/sh .  
 In the command string,  
 .Ql %h  
 will be substituted by the host name to  
 connect and  
 .Ql %p  
 by the port.  
 The command can be basically anything,  
 and should read from its standard input and write to its standard output.  
 It should eventually connect an  
 .Xr sshd 8  
 server running on some machine, or execute  
 .Ic sshd -i  
 somewhere.  
 Host key management will be done using the  
 HostName of the host being connected (defaulting to the name typed by  
 the user).  
 Note that  
 .Cm CheckHostIP  
 is not available for connects with a proxy command.  
 .Pp  
 .It Cm PubkeyAuthentication  
 Specifies whether to try public key authentication.  
 The argument to this keyword must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq yes .  
 This option applies to protocol version 2 only.  
 .It Cm RemoteForward  
 Specifies that a TCP/IP port on the remote machine be forwarded over  
 the secure channel to the specified host and port from the local machine.  
 The first argument must be a port number, and the second must be  
 .Ar host:port .  
 IPv6 addresses can be specified with an alternative syntax:  
 .Ar host/port .  
 Multiple forwardings may be specified, and additional  
 forwardings can be given on the command line.  
 Only the superuser can forward privileged ports.  
 .It Cm RhostsAuthentication  
 Specifies whether to try rhosts based authentication.  
 Note that this  
 declaration only affects the client side and has no effect whatsoever  
 on security.  
 Disabling rhosts authentication may reduce  
 authentication time on slow connections when rhosts authentication is  
 not used.  
 Most servers do not permit RhostsAuthentication because it  
 is not secure (see  
 .Cm RhostsRSAAuthentication ) .  
 The argument to this keyword must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq yes .  
 This option applies to protocol version 1 only.  
 .It Cm RhostsRSAAuthentication  
 Specifies whether to try rhosts based authentication with RSA host  
 authentication.  
 The argument must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq yes .  
 This option applies to protocol version 1 only.  
 .It Cm RSAAuthentication  
 Specifies whether to try RSA authentication.  
 The argument to this keyword must be  
 .Dq yes  
 or  
 .Dq no .  
 RSA authentication will only be  
 attempted if the identity file exists, or an authentication agent is  
 running.  
 The default is  
 .Dq yes .  
 Note that this option applies to protocol version 1 only.  
 .It Cm ChallengeResponseAuthentication  
 Specifies whether to use challenge response authentication.  
 The argument to this keyword must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq yes .  
 .It Cm SmartcardDevice  
 Specifies which smartcard device to use. The argument to this keyword is  
 the device  
 .Nm  
 should use to communicate with a smartcard used for storing the user's  
 private RSA key. By default, no device is specified and smartcard support  
 is not activated.  
 .It Cm StrictHostKeyChecking  
 If this flag is set to  
 .Dq yes ,  
 .Nm  
 will never automatically add host keys to the  
 .Pa $HOME/.ssh/known_hosts  
 file, and refuses to connect to hosts whose host key has changed.  
 This provides maximum protection against trojan horse attacks,  
 however, can be annoying when the  
 .Pa /etc/ssh_known_hosts  
 file is poorly maintained, or connections to new hosts are  
 frequently made.  
 This option forces the user to manually  
 add all new hosts.  
 If this flag is set to  
 .Dq no ,  
 .Nm  
 will automatically add new host keys to the  
 user known hosts files.  
 If this flag is set to  
 .Dq ask ,  
 new host keys  
 will be added to the user known host files only after the user  
 has confirmed that is what they really want to do, and  
 .Nm  
 will refuse to connect to hosts whose host key has changed.  
 The host keys of  
 known hosts will be verified automatically in all cases.  
 The argument must be  
 .Dq yes ,  
 .Dq no  
 or  
 .Dq ask .  
 The default is  
 .Dq ask .  
 .It Cm UsePrivilegedPort  
 Specifies whether to use a privileged port for outgoing connections.  
 The argument must be  
 .Dq yes  
 or  
 .Dq no .  
 The default is  
 .Dq no .  
 Note that this option must be set to  
 .Dq yes  
 if  
 .Cm RhostsAuthentication  
 and  
 .Cm RhostsRSAAuthentication  
 authentications are needed with older servers.  
 .It Cm User  
 Specifies the user to log in as.  
 This can be useful when a different user name is used on different machines.  
 This saves the trouble of  
 having to remember to give the user name on the command line.  
 .It Cm UserKnownHostsFile  
 Specifies a file to use for the user  
 host key database instead of  
 .Pa $HOME/.ssh/known_hosts .  
 .It Cm UseRsh  
 Specifies that rlogin/rsh should be used for this host.  
 It is possible that the host does not at all support the  
 .Nm  
 protocol.  
 This causes  
 .Nm  
 to immediately execute  
 .Xr rsh 1 .  
 All other options (except  
 .Cm HostName )  
 are ignored if this has been specified.  
 The argument must be  
 .Dq yes  
 or  
 .Dq no .  
 .It Cm XAuthLocation  
 Specifies the location of the  
 .Xr xauth 1  
 program.  
 The default is  
 .Pa /usr/X11R6/bin/xauth .  
 .El  
 .Sh ENVIRONMENT  .Sh ENVIRONMENT
 .Nm  .Nm
 will normally set the following environment variables:  will normally set the following environment variables:
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 the convenience of the user.  the convenience of the user.
 .It Pa $HOME/.ssh/config  .It Pa $HOME/.ssh/config
 This is the per-user configuration file.  This is the per-user configuration file.
 The format of this file is described above.  The file format and configuration options are described in
 This file is used by the  .Xr ssh_config 5 .
 .Nm  
 client.  
 This file does not usually contain any sensitive information,  
 but the recommended permissions are read/write for the user, and not  
 accessible by others.  
 .It Pa $HOME/.ssh/authorized_keys  .It Pa $HOME/.ssh/authorized_keys
 Lists the public keys (RSA/DSA) that can be used for logging in as this user.  Lists the public keys (RSA/DSA) that can be used for logging in as this user.
 The format of this file is described in the  The format of this file is described in the
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 would then be able to fool host authentication.  would then be able to fool host authentication.
 .It Pa /etc/ssh_config  .It Pa /etc/ssh_config
 Systemwide configuration file.  Systemwide configuration file.
 This file provides defaults for those  The file format and configuration options are described in
 values that are not specified in the user's configuration file, and  .Xr ssh_config 5 .
 for those users who do not have a configuration file.  .It Pa /etc/ssh_host_key, /etc/ssh_host_dsa_key, /etc/ssh_host_rsa_key
 This file must be world-readable.  These three files contain the private parts of the host keys
   and are used for
   .Cm RhostsRSAAuthentication
   and
   .Cm HostbasedAuthentication .
   If the protocol version 1
   .Cm RhostsRSAAuthentication
   method is used,
   .Nm
   must be setuid root, since the host key is readable only by root.
   For protocol version 2,
   .Nm
   uses
   .Xr ssh-keysign 8
   to access the host keys for
   .Cm HostbasedAuthentication .
   This eliminates the requirement that
   .Nm
   be setuid root when that authentication method is used.
   By default
   .Nm
   is not setuid root.
 .It Pa $HOME/.rhosts  .It Pa $HOME/.rhosts
 This file is used in  This file is used in
 .Pa \&.rhosts  .Pa \&.rhosts
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Line 888 
 having this file is to be able to use rhosts authentication with  having this file is to be able to use rhosts authentication with
 .Nm  .Nm
 without permitting login with  without permitting login with
 .Xr rlogin 1  .Nm rlogin
 or  or
 .Xr rsh 1 .  .Xr rsh 1 .
 .It Pa /etc/hosts.equiv  .It Pa /etc/hosts.equiv
Line 1472 
Line 931 
 .Sx ENVIRONMENT  .Sx ENVIRONMENT
 above.  above.
 .El  .El
   .Sh DIAGNOSTICS
   .Nm
   exits with the exit status of the remote command or with 255
   if an error occurred.
 .Sh AUTHORS  .Sh AUTHORS
 OpenSSH is a derivative of the original and free  OpenSSH is a derivative of the original and free
 ssh 1.2.12 release by Tatu Ylonen.  ssh 1.2.12 release by Tatu Ylonen.
Line 1482 
Line 945 
 Markus Friedl contributed the support for SSH  Markus Friedl contributed the support for SSH
 protocol versions 1.5 and 2.0.  protocol versions 1.5 and 2.0.
 .Sh SEE ALSO  .Sh SEE ALSO
 .Xr rlogin 1 ,  
 .Xr rsh 1 ,  .Xr rsh 1 ,
 .Xr scp 1 ,  .Xr scp 1 ,
 .Xr sftp 1 ,  .Xr sftp 1 ,
Line 1490 
Line 952 
 .Xr ssh-agent 1 ,  .Xr ssh-agent 1 ,
 .Xr ssh-keygen 1 ,  .Xr ssh-keygen 1 ,
 .Xr telnet 1 ,  .Xr telnet 1 ,
   .Xr ssh_config 5 ,
   .Xr ssh-keysign 8 ,
 .Xr sshd 8  .Xr sshd 8
 .Rs  .Rs
 .%A T. Ylonen  .%A T. Ylonen
Line 1498 
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 .%A T. Rinne  .%A T. Rinne
 .%A S. Lehtinen  .%A S. Lehtinen
 .%T "SSH Protocol Architecture"  .%T "SSH Protocol Architecture"
 .%N draft-ietf-secsh-architecture-09.txt  .%N draft-ietf-secsh-architecture-12.txt
 .%D July 2001  .%D January 2002
 .%O work in progress material  .%O work in progress material
 .Re  .Re
Legend:
Removed from v.1.139  
changed lines
  Added in v.1.139.2.6