Openldap gurus:

Here is my setup,

LDAPSERVERS: I have two ldap servers running RHEL7.2 and openldap 2.4.40. Both servers are configured with multi-master replication. Ldaps is enabled and a ppolicy applied.

LDAPCLIENT: My ldap client is running RHEL7.2 as well, sssd 1.13.0, and openldap client 2.4.40.

I have been troubleshooting this problem for a while and can’t figure out why everytime I try to login to an ldap client with a test user account the slapd service on only one of my ldap servers gets killed.

Both getent and ldapsearch return the expected information when ran on the ldap client:

ldapclient ~]# getent passwd realtest

realtest:*:1004:312:Liz RealTest:/home/real:/bin/tcsh

ldapclient ~]# ldapsearch -x -s sub -b 'ou=People,dc=cluster,dc=sec312' '(uid=realtest)'

# extended LDIF

#

# LDAPv3

# base <ou=People,dc=cluster,dc=sec312> with scope subtree

# filter: (uid=realtest)

# requesting: ALL

#

# realtest, People, cluster.sec312

dn: uid=realtest,ou=People,dc=cluster,dc=sec312

gidNumber: 312

objectClass: account

objectClass: top

objectClass: posixAccount

objectClass: shadowAccount

uid: realtest

loginShell: /bin/tcsh

homeDirectory: /home/real

cn: Liz RealTest

uidNumber: 1004

# search result

search: 2

result: 0 Success

# numResponses: 2

# numEntries: 1

LDAP SERVER /VAR/LOG/SECURE:

serverA journal: Suppressed 19192 messages from /system.slice/slapd.service

serverA journal: Suppressed 8449 messages from /system.slice/slapd.service

serverA systemd: slapd.service: main process exited, code=killed, status=6/ABRT

serverA systemd: Unit slapd.service entered failed state.

serverA systemd: slapd.service failed.

LDAP CLIENT  /VAR/LOG/SECURE:

ldapclient sshd[122938]: pam_sss(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=node12.cluster.sec312 user=realtest

ldapclient sshd[122938]: pam_sss(sshd:auth): received for user realtest: 7 (Authentication failure)

ldapclient sshd[122938]: pam_ldap(sshd:auth): Authentication failure; user=realtest

ldapclient sshd[122936]: error: PAM: Authentication failure for realtest from node12.cluster.sec312

ATTEMPT TO SSH AS TEST USER TO LDAP CLIENT:

% ssh -v realtest@ldapclient

OpenSSH_6.6.1, OpenSSL 1.0.1e-fips 11 Feb 2013

debug1: Reading configuration data /etc/ssh/ssh_config

debug1: /etc/ssh/ssh_config line 60: Applying options for *

debug1: Connecting to ldapclient [] port 22.

debug1: Connection established.

debug1: could not open key file '/etc/ssh/ssh_host_key': Permission denied

debug1: could not open key file '/etc/ssh/ssh_host_dsa_key': Permission denied

debug1: could not open key file '/etc/ssh/ssh_host_ecdsa_key': Permission denied

debug1: could not open key file '/etc/ssh/ssh_host_rsa_key': Permission denied

debug1: could not open key file '/etc/ssh/ssh_host_ed25519_key': Permission denied

debug1: could not open key file '/etc/ssh/ssh_host_dsa_key': Permission denied

debug1: could not open key file '/etc/ssh/ssh_host_ecdsa_key': Permission denied

debug1: could not open key file '/etc/ssh/ssh_host_rsa_key': Permission denied

debug1: could not open key file '/etc/ssh/ssh_host_ed25519_key': Permission denied

debug1: identity file /home/real/.ssh/id_rsa type -1

debug1: identity file /home/real/.ssh/id_rsa-cert type -1

debug1: identity file /home/real/.ssh/id_dsa type -1

debug1: identity file /home/real/.ssh/id_dsa-cert type -1

debug1: identity file /home/real/.ssh/id_ecdsa type -1

debug1: identity file /home/real/.ssh/id_ecdsa-cert type -1

debug1: identity file /home/real/.ssh/id_ed25519 type -1

debug1: identity file /home/real/.ssh/id_ed25519-cert type -1

debug1: Enabling compatibility mode for protocol 2.0

debug1: Local version string SSH-2.0-OpenSSH_6.6.1

debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1

debug1: match: OpenSSH_6.6.1 pat OpenSSH_6.6.1* compat 0x04000000

debug1: SSH2_MSG_KEXINIT sent

debug1: SSH2_MSG_KEXINIT received

debug1: kex: server->client aes128-ctr hmac-md5-etm@openssh.com none

debug1: kex: client->server aes128-ctr hmac-md5-etm@openssh.com none

debug1: kex: curve25519-sha256@libssh.org need=16 dh_need=16

debug1: kex: curve25519-sha256@libssh.org need=16 dh_need=16

debug1: sending SSH2_MSG_KEX_ECDH_INIT

debug1: expecting SSH2_MSG_KEX_ECDH_REPLY

debug1: Server host key: ECDSA 14:c5:c2:60:29:ce:99:aa:67:41:a6:6a:11:2c:ca:86

debug1: Host 'ldapclient' is known and matches the ECDSA host key.

debug1: Found key in /home/real/.ssh/known_hosts:22

debug1: ssh_ecdsa_verify: signature correct

debug1: SSH2_MSG_NEWKEYS sent

debug1: expecting SSH2_MSG_NEWKEYS

debug1: SSH2_MSG_NEWKEYS received

debug1: Roaming not allowed by server

debug1: SSH2_MSG_SERVICE_REQUEST sent

debug1: SSH2_MSG_SERVICE_ACCEPT received

debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive,hostbased

debug1: Next authentication method: gssapi-keyex

debug1: No valid Key exchange context

debug1: Next authentication method: gssapi-with-mic

debug1: Unspecified GSS failure.  Minor code may provide more information

No Kerberos credentials available

debug1: Unspecified GSS failure.  Minor code may provide more information

No Kerberos credentials available

debug1: Unspecified GSS failure.  Minor code may provide more information

debug1: Unspecified GSS failure.  Minor code may provide more information

No Kerberos credentials available

debug1: Next authentication method: hostbased

debug1: No more client hostkeys for hostbased authentication.

debug1: Next authentication method: publickey

debug1: Trying private key: /home/real/.ssh/id_rsa

debug1: Trying private key: /home/real/.ssh/id_dsa

debug1: Trying private key: /home/real/.ssh/id_ecdsa

debug1: Trying private key: /home/real/.ssh/id_ed25519

debug1: Next authentication method: keyboard-interactive

Password:

debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password,keyboard-interactive,host based

Any help will be greatly appreciated!

Thank you,

Liz