SSH password-less login issue between linux and solaris Post: 302713797

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Special Forums Cybersecurity SSH password-less login issue between linux and solaris Post 302713797 by bakunin on Thursday 11th of October 2012 10:13:20 AM

10-11-2012

Registered User

Quote:

Originally Posted by error_lee

Unfortunately, I don't have the permission to restart sshd.

Then get someone who can to analyze the problem.

Quote:

The thing is that I did not change anything in the sshd config, but simply generated the keys. You think this may be related?

No, not at all. But ssh-communication requires two things to work in accordance: the client side (ssh-client, authentication data) and the server side (the sshd daemon and its configuration).

I don't claim to know what went wrong in your case, but the debug output you provided makes me suppose the problem is with the server side. To verify this one will have to examine the server configuration and eventually reconfigure/restart it, as i have told you.

Alternatively you can try to set up communication from a third host to the problematic one: if i got you correctly "HostA->HostB" works, but "HostB->HostA" doesn't. Set up "HostC->HostA" and see if this works. If it does it is probably not the sshd in host A as such, but maybe just the configuration: there are different versions of open-ssl (the library which does the underlying encryption) and maybe you hit upon such a version incompatibility.

Fact is: i don't know and as long as you can't present more and better data probably nobody can. So we are left to suggestions and more or less educated guesses about possible reasons.

I hope this helps.

bakunin

bakunin

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LEARN ABOUT CENTOS

ssh-ldap-helper

SSH-LDAP-HELPER(8)					    BSD System Manager's Manual 					SSH-LDAP-HELPER(8)

NAME

     ssh-ldap-helper -- sshd helper program for ldap support

SYNOPSIS

     ssh-ldap-helper [-devw] [-f file] [-s user]

DESCRIPTION

     ssh-ldap-helper is used by sshd(1) to access keys provided by an LDAP.  ssh-ldap-helper is disabled by default and can only be enabled in the
     sshd configuration file /etc/ssh/sshd_config by setting AuthorizedKeysCommand to ``/usr/libexec/openssh/ssh-ldap-wrapper''.

     ssh-ldap-helper is not intended to be invoked by the user, but from sshd(8) via ssh-ldap-wrapper.

     The options are as follows:

     -d      Set the debug mode; ssh-ldap-helper prints all logs to stderr instead of syslog.

     -e      Implies -w; ssh-ldap-helper halts if it encounters an unknown item in the ldap.conf file.

     -f      ssh-ldap-helper uses this file as the ldap configuration file instead of /etc/ssh/ldap.conf (default).

     -s      ssh-ldap-helper prints out the user's keys to stdout and exits.

     -v      Implies -d; increases verbosity.

     -w      ssh-ldap-helper writes warnings about unknown items in the ldap.conf configuration file.

SEE ALSO

     sshd(8), sshd_config(5), ssh-ldap.conf(5),

HISTORY

     ssh-ldap-helper first appeared in OpenSSH 5.5 + PKA-LDAP .

AUTHORS

     Jan F. Chadima <jchadima@redhat.com>

BSD
								  April 29, 2010							       BSD