Linux in a Nutshell, Fifth Edition

ssh-add | 435

Linux

Commands

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$HOME/.shosts

Like .rhosts, but allows rhosts authentication without permit-

ting login with rlogin or rsh.

$HOME/.ssh/authorized_keys

Lists RSA/DSA public keys that can be used to log in as this

user.

$HOME/.ssh/config

The user’s configuration file.

$HOME/.ssh/environment

Additional environment variable definitions.

$HOME/.ssh/identity, $HOME/.ssh/id_dsa, $HOME/.ssh/id_rsa

The authentication identity of the user for SSH1 RSA, SSH2

DSA, and SSH2 RSA, respectively.

$HOME/.ssh/identity.pub, $HOME/.ssh/id_dsa.pub,

$HOME/.ssh/id_rsa.pub

The public key for user authentication for SSH1 RSA, SSH2

DSA, and SSH2 RSA, respectively.

$HOME/.ssh/known_hosts

Contains host keys for all hosts the user has logged into that

are not already in the systemwide file at /etc/ssh/ssh_known_

hosts.

$HOME/.ssh/rc

Contains commands executed by ssh after the user has logged

in but before the shell or command is started.

ssh-add

ssh-add [options] [files]

ssh-add -e|-s reader

Add RSA or DSA identities to the authentication agent (see ssh-

agent), which must be running and must be an ancestor of the

current process. ssh-add reads the files created by ssh-keygen for

private keys. It reads the information in these private keys to obtain

RSA or DSA identities. With no arguments specified, ssh-add adds

the