LDAP question

decenter · 11-09-2012, 11:57 PM

Hi,

How to login to a ldap server from a linux and windows machine?

Thanks.

xeleema · 11-10-2012, 05:19 AM

Greetingz!

SSH works pretty well for me (PuTTY is a good choice if you need a Windows-based SSH client).

btmiller · 11-10-2012, 01:03 PM

The question is not clear. Do you want to login to a machine running an LDAP server? If so, follow xeleema's advice. Or, do you want to set up an LDAP server as an authentication source for Linux and Windows machines? The latter is a much more in-depth question and will require you to do some reading on OpenLDAP and SAMBA (for Windows auth).

decenter · 11-24-2012, 06:27 AM

I need to login to a machine running LDAP server. I get this error when I try to login to ldap server.

Code:

[root@phpldapadmin]# ssh -l giffen xxx.xxx.xxx.xxx
giffen@xxx.xxx.xxx.xxx's password: 
Last login: Wed Nov 21 13:08:40 2012 from xxx.xxx.xxx.xxx
Connection to xxx.xxx.xxx.xxx closed.

xeleema · 11-24-2012, 06:47 AM

You come all the way to the forums so someone can tell you to go check the logs?
Google "syslog" and the name of your Linux distribution.

Or just run this command on "xxx.xxx.xxx.xxx"

Code:

[[ -f /var/adm/messages ]] && tail -f /var/adm/messages

P.S: Pretty sure "ssh giffen@xxx.xxx.xxx.xxx" will work as well.

decenter · 11-25-2012, 05:02 AM

Alright. Here is what the log file says, but I can't find the log file /var/adm/messages . It is not logging in /var/log/messages. I got this from /var/log/secure

Code:

Nov 25 16:24:00 xxx sudo: PAM unable to resolve symbol: pam_sm_open_session
Nov 25 16:24:00 xxx sudo: PAM unable to resolve symbol: pam_sm_close_session
Nov 25 16:24:02 xxx sshd[20912]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=client  user=max
Nov 25 16:24:02 xxx sshd[20912]: Accepted password for max from client port 56345 ssh2
Nov 25 16:24:02 xxx sshd[20912]: pam_unix(sshd:session): session opened for user max by (uid=0)
Nov 25 16:24:02 xxx sshd[20915]: Received disconnect from client: 11: disconnected by user
Nov 25 16:24:02 xxx sshd[20912]: pam_unix(sshd:session): session closed for user max

shivaa · 11-25-2012, 06:26 AM

I think you're using RHEL. Did you check LDAP server's /etc/ssh/sshd_config file, whether it accepts ssh connections or not?
In this file find DenyUsers and AllowedUsers entries, and check if your username i.e. giffen is there against DenyUsers.
Also check /etc/hosts.deny file, if your local hostname or IP is mentioned there.

decenter · 11-25-2012, 06:41 AM

Thank you for the reply. Yes, I'm using Cent OS. There are no bad entries in both /etc/ssh/sshd_config and /etc/hosts.deny files.