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ssh-add (1)
  • ssh-add (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
  • >> ssh-add (1) ( FreeBSD man: Команды и прикладные программы пользовательского уровня )
  • ssh-add (1) ( Русские man: Команды и прикладные программы пользовательского уровня )
  • ssh-add (1) ( Linux man: Команды и прикладные программы пользовательского уровня )

  • BSD mandoc
     

    NAME

    
    
    ssh-add
    
     - adds RSA or DSA identities to the authentication agent
    
     
    

    SYNOPSIS

    ssh-add [-cDdLlXx [-t life ] ] [file ... ]
    ssh-add -s reader
    ssh-add -e reader  

    DESCRIPTION

    ssh-add adds RSA or DSA identities to the authentication agent, ssh-agent1. When run without arguments, it adds the files ~/.ssh/id_rsa ~/.ssh/id_dsa and ~/.ssh/identity Alternative file names can be given on the command line. If any file requires a passphrase, ssh-add asks for the passphrase from the user. The passphrase is read from the user's tty. ssh-add retries the last passphrase if multiple identity files are given.

    The authentication agent must be running and the SSH_AUTH_SOCK environment variable must contain the name of its socket for ssh-add to work.

    The options are as follows:

    -c
    Indicates that added identities should be subject to confirmation before being used for authentication. Confirmation is performed by the SSH_ASKPASS program mentioned below. Successful confirmation is signaled by a zero exit status from the SSH_ASKPASS program, rather than text entered into the requester.
    -D
    Deletes all identities from the agent.
    -d
    Instead of adding identities, removes identities from the agent. If ssh-add has been run without arguments, the keys for the default identities will be removed. Otherwise, the argument list will be interpreted as a list of paths to public key files and matching keys will be removed from the agent. If no public key is found at a given path, ssh-add will append .pub and retry.
    -e reader
    Remove key in smartcard reader
    -L
    Lists public key parameters of all identities currently represented by the agent.
    -l
    Lists fingerprints of all identities currently represented by the agent.
    -s reader
    Add key in smartcard reader
    -t life
    Set a maximum lifetime when adding identities to an agent. The lifetime may be specified in seconds or in a time format specified in sshd_config5.
    -X
    Unlock the agent.
    -x
    Lock the agent with a password.

     

    ENVIRONMENT

    DISPLAY and SSH_ASKPASS
    If ssh-add needs a passphrase, it will read the passphrase from the current terminal if it was run from a terminal. If ssh-add does not have a terminal associated with it but DISPLAY and SSH_ASKPASS are set, it will execute the program specified by SSH_ASKPASS and open an X11 window to read the passphrase. This is particularly useful when calling ssh-add from a .xsession or related script. (Note that on some machines it may be necessary to redirect the input from /dev/null to make this work.)
    SSH_AUTH_SOCK
    Identifies the path of a unix-domain socket used to communicate with the agent.

     

    FILES

    ~/.ssh/identity
    Contains the protocol version 1 RSA authentication identity of the user.
    ~/.ssh/id_dsa
    Contains the protocol version 2 DSA authentication identity of the user.
    ~/.ssh/id_rsa
    Contains the protocol version 2 RSA authentication identity of the user.

    Identity files should not be readable by anyone but the user. Note that ssh-add ignores identity files if they are accessible by others.  

    DIAGNOSTICS

    Exit status is 0 on success, 1 if the specified command fails, and 2 if ssh-add is unable to contact the authentication agent.  

    SEE ALSO

    ssh(1), ssh-agent1, ssh-keygen1, sshd(8)  

    AUTHORS

    OpenSSH is a derivative of the original and free ssh 1.2.12 release by Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo de Raadt and Dug Song removed many bugs, re-added newer features and created OpenSSH. Markus Friedl contributed the support for SSH protocol versions 1.5 and 2.0.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    ENVIRONMENT
    FILES
    DIAGNOSTICS
    SEE ALSO
    AUTHORS


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