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Diff for /src/usr.bin/ssh/ssh.1 between version 1.107.2.3 and 1.107.2.4

version 1.107.2.3, 2001/11/15 22:51:15 version 1.107.2.4, 2002/03/09 00:20:45
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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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 .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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 Specifies the protocol version 2 host key algorithms  Specifies the protocol version 2 host key algorithms
 that the client wants to use in order of preference.  that the client wants to use in order of preference.
 The default for this option is:  The default for this option is:
 .Dq ssh-rsa,ssh-dss  .Dq ssh-rsa,ssh-dss .
 .It Cm HostKeyAlias  .It Cm HostKeyAlias
 Specifies an alias that should be used instead of the  Specifies an alias that should be used instead of the
 real host name when looking up or saving the host key  real host name when looking up or saving the host key
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 .Cm HostName  .Cm HostName
 specifications).  specifications).
 .It Cm IdentityFile  .It Cm IdentityFile
 Specifies the file from which the user's RSA or DSA authentication identity  Specifies a file from which the user's RSA or DSA authentication identity
 is read (default  is read. 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.
 Additionally, any identities represented by the authentication agent  Additionally, any identities represented by the authentication agent
 will be used for authentication.  will be used for authentication.
 The file name may use the tilde  The file name may use the tilde
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 multiple identity files specified in configuration files; all these  multiple identity files specified in configuration files; all these
 identities will be tried in sequence.  identities will be tried in sequence.
 .It Cm KeepAlive  .It Cm KeepAlive
 Specifies whether the system should send keepalive messages to the  Specifies whether the system should send TCP keepalive messages to the
 other side.  other side.
 If they are sent, death of the connection or crash of one  If they are sent, death of the connection or crash of one
 of the machines will be properly noticed.  of the machines will be properly noticed.
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 This is important in scripts, and many users want it too.  This is important in scripts, and many users want it too.
 .Pp  .Pp
 To disable keepalives, the value should be set to  To disable keepalives, the value should be set to
 .Dq no  .Dq no .
 in both the server and the client configuration files.  
 .It Cm KerberosAuthentication  .It Cm KerberosAuthentication
 Specifies whether Kerberos authentication will be used.  Specifies whether Kerberos authentication will be used.
 The argument to this keyword must be  The argument to this keyword must be
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 Gives the verbosity level that is used when logging messages from  Gives the verbosity level that is used when logging messages from
 .Nm ssh .  .Nm ssh .
 The possible values are:  The possible values are:
 QUIET, FATAL, ERROR, INFO, VERBOSE and DEBUG.  QUIET, FATAL, ERROR, INFO, VERBOSE, DEBUG, DEBUG1, DEBUG2 and DEBUG3.
 The default is INFO.  The default is INFO.  DEBUG and DEBUG1 are equivalent.  DEBUG2
   and DEBUG3 each specify higher levels of verbose output.
 .It Cm MACs  .It Cm MACs
 Specifies the MAC (message authentication code) algorithms  Specifies the MAC (message authentication code) algorithms
 in order of preference.  in order of preference.
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 over another method (e.g.  over another method (e.g.
 .Cm password )  .Cm password )
 The default for this option is:  The default for this option is:
 .Dq hostbased,publickey,keyboard-interactive,password  .Dq hostbased,publickey,keyboard-interactive,password .
 .It Cm Protocol  .It Cm Protocol
 Specifies the protocol versions  Specifies the protocol versions
 .Nm  .Nm
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 .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.
Legend:
Removed from v.1.107.2.3  
changed lines
  Added in v.1.107.2.4