Hello, as OpenLDAP distributed with RHEL uses NSS for crypto (which is deprecated by OpenLDAP upstream community) please contact Red Hat customer support with the issue. There, please supply full debug-level logs from all servers and client. I have noticed the suppressed log lines from journal in logs you have supplied bellow, which is not sufficient. Thank you for your understanding.
"Real, Elizabeth (392K)" <[email protected]> writes: > 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 [email protected] none > debug1: kex: client->server aes128-ctr [email protected] none > debug1: kex: [email protected] need=16 dh_need=16 > debug1: kex: [email protected] 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 -- Matus Honek Associate Software Engineer @ Red Hat, Inc.
