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Top Forums UNIX for Advanced & Expert Users passwordless ssh connection problem Post 302569224 by binlib on Sunday 30th of October 2011 09:47:59 AM
Old 10-30-2011
From SSH FAQ:

3.14 - I copied my public key to authorized_keys but public-key authentication still doesn't work.

Typically this is caused by the file permissions on $HOME, $HOME/.ssh or $HOME/.ssh/authorized_keys being more permissive than sshd allows by default.
In this case, it can be solved by executing the following on the server.
$ chmod go-w $HOME $HOME/.ssh
$ chmod 600 $HOME/.ssh/authorized_keys
$ chown `whoami` $HOME/.ssh/authorized_keys
If this is not possible for some reason, an alternative is to set StrictModes no in sshd_config, however this is not recommended.
 

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ssh-add(1)							   User Commands							ssh-add(1)

NAME
ssh-add - add RSA or DSA identities to the authentication agent SYNOPSIS
ssh-add [-lLdDxX] [-t life] [ file ]... DESCRIPTION
The ssh-add utility adds RSA or DSA identities to the authentication agent, ssh-agent(1). When run without arguments, it attempts to add all of the files $HOME/.ssh/identity (RSA v1), $HOME/.ssh/id_rsa (RSA v2), and $HOME/.ssh/id_dsa (DSA v2) that exist. If more than one of the private keys exists, an attempt to decrypt each with the same passphrase will be made before reprompting for a different passphrase. The passphrase is read from the user's tty or by running the program defined in SSH_ASKPASS (see below). The authentication agent must be running. OPTIONS
The following options are supported: -d Instead of adding the identity, this option removes the identity from the agent. -D Deletes all identities from the agent. -l Lists fingerprints of all identities currently represented by the agent. -L Lists public key parameters of all identities currently represented by the agent. -t life Sets a maximum lifetime when adding identities to an agent. The lifetime may be specified in seconds or in a time format speci- fied in sshd(1M). -x Locks the agent with a password. -X Unlocks the agent. ENVIRONMENT VARIABLES
DISPLAY If ssh-add needs a passphrase, it will read the passphrase from the current terminal if it was run from a terminal. If SSH_ASKPASS ssh-add does not have a terminal associated with it but DISPLAY and SSH_ASKPASS are set, it will execute the program spec- ified 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. SSH_AUTH_SOCK Identifies the path of a unix-domain socket used to communicate with the agent. EXIT STATUS
The following exit values are returned: 0 Successful completion. 1 An error occurred. FILES
These files should not be readable by anyone but the user. Notice that ssh-add ignores a file if it is accessible by others. It is possible to specify a passphrase when generating the key; that passphrase will be used to encrypt the private part of this file. If these files are stored on a network file system it is assumed that either the protection provided in the file themselves or the trans- port layer of the network file system provides sufficient protection for the site policy. If this is not the case, then it is recommended the key files are stored on removable media or locally on the relevant hosts. Recommended names for the DSA and RSA key files: $HOME/.ssh/identity Contains the RSA authentication identity of the user for protocol version 1. $HOME/.ssh/identity.pub Contains the public part of the RSA authentication identity of the user for protocol version 1. $HOME/.ssh/id_dsa Contains the private DSA authentication identity of the user. $HOME/.ssh/id_dsa.pub Contains the public part of the DSA authentication identity of the user. $HOME/.ssh/id_rsa Contains the private RSA authentication identity of the user. $HOME/.ssh/id_rsa.pub Contains the public part of the RSA authentication identity of the user. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWsshu | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
ssh(1), ssh-agent(1), ssh-keygen(1), sshd(1M), attributes(5) SunOS 5.11 9 Jan 2004 ssh-add(1)
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