sssd-users November 2017

sssd-users@lists.fedorahosted.org

22 participants
22 discussions

sssd performance on large domains
by zfnoctis＠gmail.com 03 Feb '22

03 Feb '22

Hi, I'm wondering if there are any plans to improve sssd performance on large active directory domains (100k+ users, 40k+ groups), or if there are settings I am not aware of that can greatly improve performance, specifically for workstation use cases. Currently if I do not set "ignore_group_members = True" in sssd.conf, logins can take upwards of 6 minutes and "sssd_be" will max the CPU for up to 20 minutes after logon, which makes it a non-starter. The reason I want to allow group members to be seen is that I want certain domain groups to be able to perform elevated actions using polkit. If I ignore group members, polkit reports that the group is empty and so no one can elevate in the graphical environment. Ultimately this means that Linux workstations are at a severe disadvantage since they cannot be bound to the domain and have the normal set of access features users and IT expect from macOS or Windows. Distributions used: Ubuntu 16.04 (sssd 1.13.4-1ubuntu1.1), Ubuntu 16.10 (sssd 1.13.4-3) and Fedora 24 (sssd-1.13.4-3.fc24). All exhibit the same problems. I've also tried "ldap_group_nesting_level = 1" without seeing any noticeable improvement with respect to performance. Putting the database on /tmp isn't viable as these are workstations that will reboot semi-frequently, and I don't believe this is an I/O bound performance issue anyways. Thanks for your time.

6 29

Enumerate users from external group from AD trust
by Bolke de Bruin 29 Nov '19

29 Nov '19

Hello, I have sssd 1.13.00 working against FreeIPA 4.2 domain. This domain has a trust relationship with a active directory domain. One of the systems we are using requires to enumerate all users in groups by (unfortunate) design (Apache Ranger). This is done by using “getent group”. During this enumeration the full user list for a group that has a nested external member group* is not always returned so we thought to add “getent group mygroup” in order to get more details. Unfortunately this does not seem to work consistently: sometimes this gives information sometimes it does not: [root@master centos]# getent group ad_users ad_users:*:1950000004: [root@master centos]# id bolke(a)ad.local UID=1796201107(bolke(a)ad.local) GID=1796201107(bolke(a)ad.local) groepen=1796201107(bolke(a)ad.local),1796200513(domain users@ad.local),1796201108(test@ad.local) [root@master centos]# getent group ad_users ad_users:*:1950000004:bolke@ad.local <mailto:bolke@ad.local> If I clear the cache (sss_cache -E) the entry is gone again: [root@master centos]# getent group ad_users ad_users:*:1950000004: My question is how do I get sssd to enumerate *all users* in a group consistently? Thanks! Bolke * https://docs.fedoraproject.org/en-US/Fedora/18/html/FreeIPA_Guide/trust-gro…

3 15

SSSD for one-way trusted AD domain
by Ondrej Valousek 15 May '18

15 May '18

Hi List, Question, we have joined machine into AD domain B. This domain has one way trust to domain A. No direct connection from domain B network to DCs in domain A is possible. Can we use SSSD to authenticate members in domain A. In windows, this works - but can't get it working in Linux via SSSD (Fedora 25, used realmd for AD join). Thanks, Ondrej ----- The information contained in this e-mail and in any attachments is confidential and is designated solely for the attention of the intended recipient(s). If you are not an intended recipient, you must not use, disclose, copy, distribute or retain this e-mail or any part thereof. If you have received this e-mail in error, please notify the sender by return e-mail and delete all copies of this e-mail from your computer system(s). Please direct any additional queries to: communications(a)s3group.com. Thank You. Silicon and Software Systems Limited (S3 Group). Registered in Ireland no. 378073. Registered Office: South County Business Park, Leopardstown, Dublin 18.

3 2

SSSD and SUDO not working
by Andrea Passuello 11 Dec '17

11 Dec '17

Hi all, I use SSSD with OpenLDAP and I am able to authenticate users. I am trying to configure SSSD for managing and caching sudo but I can't use sudo and the system reply me with this: Sorry, user xxx is not allowed to execute '/usr/bin/apt-get update' as root on MACHINE. This is my sssd.conf [nss] filter_groups = root,andrea filter_users = root,andrea reconnection_retries = 3 debug_level = 4 [pam] reconnection_retries = 3 debug_level = 4 offline_credentials_expiration = 90 [sudo] debug_level = 7 # valori di default in secondi #ldap_sudo_full_refresh_interval=21600 #ldap_sudo_smart_refresh_interval=900 ldap_sudo_full_refresh_interval=10 ldap_sudo_smart_refresh_interval=10 [sssd] config_file_version = 2 reconnection_retries = 3 services = nss, pam, sudo domains = mydomain.com [domain/mydomain.com] debug_level = 7 cache_credentials = true account_cache_expiration = 90 # With this as false, a simple "getent passwd" for testing won't work. You must do getent passwd user(a)domain.com # enumerate = false enumerate = true id_provider = ldap auth_provider = ldap access_provider = ldap sudo_provider = ldap # chpass_provider = ldap ldap_id_use_start_tls = true ldap_tls_reqcert = demand ldap_tls_cacert = /etc/ssl/certs/ca-certificates.crt ldap_uri = ldap://LDAPSERVER ldap_search_base = dc=mydomain,dc=com ldap_access_filter = (uidNumber=*) ldap_sudo_search_base = ou=sudoers,dc=mydomain,dc=com This is my nssswitch.conf passwd: compat sss group: compat sss shadow: compat sss sudoers: files sss This is the log's output tail -f /var/log/auth.log /var/log/sssd/sssd_sudo.log /var/log/sssd/sssd_widegroup.eu.log ==> /var/log/auth.log <== Nov 8 15:50:46 andrea-X550LA sudo: pam_unix(sudo:auth): authentication failure; logname=MYUSER uid=1126 euid=0 tty=/dev/pts/7 ruser=MYUSER rhost= user=MYUSER ==> /var/log/sssd/sssd_mydomain.com.log <== (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_get_account_info] (0x0200): Got request for [0x3][BE_REQ_INITGROUPS][1][name=MYUSER] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_req_set_domain] (0x0400): Changing request domain from [mydomain.com] to [mydomain.com] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_initgr_next_base] (0x0400): Searching for users with base [dc=mydomain,dc=eu] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x0400): calling ldap_search_ext with [(&(uid=MYUSER)(objectclass=posixAccount)(&(uidNumber=*)(! (uidNumber=0))))][dc=mydomain,dc=eu]. (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [objectClass] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [uid] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [userPassword] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [uidNumber] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [gidNumber] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [gecos] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [homeDirectory] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [loginShell] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [krbPrincipalName] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [cn] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [modifyTimestamp] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [modifyTimestamp] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [shadowLastChange] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [shadowMin] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [shadowMax] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [shadowWarning] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [shadowInactive] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [shadowExpire] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [shadowFlag] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [krbLastPwdChange] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [krbPasswordExpiration] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [pwdAttribute] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [authorizedService] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [accountExpires] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [userAccountControl] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [nsAccountLock] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [host] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [loginDisabled] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [loginExpirationTime] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [loginAllowedTimeMap] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [sshPublicKey] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_parse_entry] (0x1000): OriginalDN: [uid=MYUSER,ou=people,dc=mydomain,dc=eu]. (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_op_finished] (0x0400): Search result: Success(0), no errmsg set (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_save_user] (0x0400): Save user (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_attrs_get_sid_str] (0x1000): No [objectSID] attribute. [0][Success] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_primary_name] (0x0400): Processing object MYUSER (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_save_user] (0x0400): Processing user MYUSER (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_save_user] (0x0400): Original memberOf is not available for [MYUSER]. (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_save_user] (0x0400): User principal is not available for [MYUSER]. (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_save_user] (0x0400): Storing info for user MYUSER (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_initgr_rfc2307_next_base] (0x0400): Searching for groups with base [dc=mydomain,dc=eu] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x0400): calling ldap_search_ext with [(&(memberuid=MYUSER)(objectClass=posixGroup)(cn=*)( &(gidNumber=*)(!(gidNumber=0))))][dc=mydomain,dc=eu]. (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [objectClass] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [cn] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [userPassword] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [gidNumber] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [modifyTimestamp] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [modifyTimestamp] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_parse_entry] (0x1000): OriginalDN: [cn=netsudo,ou=groups,dc=mydomain,dc=eu]. (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_op_finished] (0x0400): Search result: Success(0), no errmsg set (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_initgr_done] (0x0400): Primary group already cached, nothing to do. (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [acctinfo_callback] (0x0100): Request processed. Returned 0,0,Success (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_req_set_domain] (0x0400): Changing request domain from [mydomain.com] to [mydomain.com] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_pam_handler] (0x0100): Got request with the following data (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): command: SSS_PAM_AUTHENTICATE (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): domain: mydomain.com (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): user: MYUSER (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): service: sudo (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): tty: /dev/pts/7 (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): ruser: MYUSER (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): rhost: (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): authtok type: 1 (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): newauthtok type: 0 (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): priv: 0 (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): cli_pid: 7144 (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): logon name: not set (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [fo_resolve_service_send] (0x0100): Trying to resolve service 'LDAP' (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [get_server_status] (0x1000): Status of server 'LDAPSERVER' is 'working' (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [get_port_status] (0x1000): Port status of port 389 for server 'LDAPSERVER' is 'working' (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [get_server_status] (0x1000): Status of server 'LDAPSERVER' is 'working' (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_resolve_server_process] (0x1000): Saving the first resolved server (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_resolve_server_process] (0x0200): Found address for server LDAPSERVER: [xxx.xxx.xxx.xxx] TTL 2222 (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_uri_callback] (0x0400): Constructed uri 'ldap://LDAPSERVER' (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sss_ldap_init_send] (0x0400): Setting 6 seconds timeout for connecting (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_ldap_connect_callback_add] (0x1000): New LDAP connection to [ldap://LDAPSERVER:389/??base] with fd [24]. (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_sys_connect_done] (0x0100): Executing START TLS (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_connect_done] (0x0080): START TLS result: Success(0), (null) (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [fo_set_port_status] (0x0100): Marking port 389 of server 'LDAPSERVER' as 'working' (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [set_server_common_status] (0x0100): Marking server 'LDAPSERVER' as 'working' (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [fo_set_port_status] (0x0400): Marking port 389 of duplicate server 'LDAPSERVER' as 'working' (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [simple_bind_send] (0x0100): Executing simple bind as: uid=MYUSER,ou=people,dc=mydomain,dc=eu (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [simple_bind_done] (0x1000): Password Policy Response: expire [-1] grace [-1] error [No error]. (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [simple_bind_done] (0x0400): Bind result: Success(0), no errmsg set (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_pam_auth_done] (0x0100): Password successfully cached for MYUSER (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_pam_handler_callback] (0x0100): Backend returned: (0, 0, <NULL>) [Success] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_pam_handler_callback] (0x0100): Sending result [0][mydomain.com] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_pam_handler_callback] (0x0100): Sent result [0][mydomain.com] ==> /var/log/auth.log <== Nov 8 15:50:46 andrea-X550LA sudo: pam_sss(sudo:auth): authentication success; logname=MYUSER uid=1126 euid=0 tty=/dev/pts/7 ruser=MYUSER rhost= user=MYUSER ==> /var/log/sssd/sssd_mydomain.com.log <== (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_req_set_domain] (0x0400): Changing request domain from [mydomain.com] to [mydomain.com] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_pam_handler] (0x0100): Got request with the following data (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): command: SSS_PAM_ACCT_MGMT (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): domain: mydomain.com (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): user: MYUSER (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): service: sudo (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): tty: /dev/pts/7 (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): ruser: MYUSER (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): rhost: (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): authtok type: 0 (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): newauthtok type: 0 (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): priv: 0 (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): cli_pid: 7144 (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [pam_print_data] (0x0100): logon name: not set (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_access_send] (0x0400): Performing access check for user [MYUSER] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_access_filter_send] (0x0400): Performing access filter check for user [MYUSER] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_access_filter_send] (0x0400): Checking filter against LDAP (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_ext_step] (0x0400): calling ldap_search_ext with [(&(uid=MYUSER)(objectclass=posixAccount)(uidNumber=*))][ uid=MYUSER,ou=people,dc=mydomain,dc=eu]. (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_parse_entry] (0x1000): OriginalDN: [uid=MYUSER,ou=people,dc=mydomain,dc=eu]. (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_get_generic_op_finished] (0x0400): Search result: Success(0), no errmsg set (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [sdap_access_filter_done] (0x0400): Access granted by online lookup (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_pam_handler_callback] (0x0100): Backend returned: (0, 0, <NULL>) [Success] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_pam_handler_callback] (0x0400): SELinux provider doesn't exist, not sending the request to it. (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_pam_handler_callback] (0x0100): Sending result [0][mydomain.com] (Wed Nov 8 15:50:46 2017) [sssd[be[mydomain.com]]] [be_pam_handler_callback] (0x0100): Sent result [0][mydomain.com] ==> /var/log/auth.log <== Nov 8 15:50:46 andrea-X550LA sudo: MYUSER : command not allowed ; TTY=pts/7 ; PWD=/home/MYUSER ; USER=root ; COMMAND=/usr/bin/apt-get update ==> /var/log/sssd/sssd_sudo.log <== (Wed Nov 8 15:50:46 2017) [sssd[sudo]] [client_recv] (0x0200): Client disconnected! Please, could you help me to understand what's wrong? Many thanks in advance and any help is appreciated. Regards. -- Avvertenze ai sensi del D.Lgs.196 del 30/06/2003 Le informazioni contenute in questo messaggio di posta elettronica e/o files allegati, sono da considerarsi strettamente riservati. Il loro utilizzo è consentito esclusivamente al destinatario del messaggio, per le finalità indicate nello stesso. Costituisce violazione ai principi dettati dal D.Lgs. 196/2003: trattenere il messaggio stesso oltre il tempo necessario, divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo od utilizzarlo per finalità diverse. In ogni momento potrà richiederci la sospensione dell'impiego dei suoi dati, ad esclusione delle comunicazioni effettuate in esecuzione di obblighi di legge. Qualora avesse ricevuto questo messaggio senza esserne il destinatario La preghiamo cortesemente di darcene notizia via e-mail e di procedere alla distruzione del messaggio stesso dal Suo sistema. Se desidera presentare un reclamo, può trovare informazioni e supporto sul nostro sito www.widegroup.eu/reclami o può scrivere a reclami(a)widegroup.eu. Grazie. -- This message is confidential. It may also be privileged or otherwise protected by work, product, immunity or other legal rules. If you have received it by mistake, please let us know by e-mail reply and delete it from your system; you may not copy this message or disclose its contents to anyone. The integrity and security of this message cannot be guaranteed on the Internet. If you want to submit a formal complaint, you can find information and support on our website www.widegroup.eu/reclami or writing to reclami(a)widegroup.eu. Thank you.

5 18

ad_access_filter question
by Conwell, Nik 30 Nov '17

30 Nov '17

Hi all, I'm jumping in to using sssd-ad here at BU. I'm able to domain join a CentOS7 and pull our AD entries successfully but am having troubles with ad_access_filter to restrict access to a group. Due to FERPA restrictions here, we can't query memberOf for random people via a machine account, so things like: ad_access_filter = (memberOf=CN=group-of-admins,OU=XYZ,DC=blah,DC=blah,DC=blah) won't work. I see from debug level 7 that this translates into a query like: (&(sAMAccountName=nik)(objectclass=user)(memberOf=CN=group-of-admins,OU=Groups,OU=XYZ,DC=blah,DC=blah,DC=blah)) I've verified independently with ldapsearch that if I do this under the machine account, I don't get anything back. Note that if this query was done in the context of the user just logging in ("nik") then it would work since I have the privs to see my own memberOf. But, I think (I guess) that the query is being done by SSSD-AD as the machine account. I've also played around with doing a filter like "(&(objectCategory=group)(CN=group-of-admins))" which does actually return a list of "member:" entries for an ldapsearch when using the machine account privs. However, if I plug this into ad_access_filter, it's not allowing access I think because of the (&sAMAccountName=…) being a query of a user object whereas the group query is a group object and the filter isn't being satisfied. From looking at the code I think it's not designed to handle being returned an object which has a list of "member:" entries and looking for the user in that list. SMOP I guess :) So, misc blathering aside, does anybody have any suggestions on how I should go about restricting access to groups in cases where machine accounts aren't allowed access to the memberOf information for users? Is there a way to get it via a group filter, or should/could the memberOf query be done under the context and privs of the user accessing it? (I guess that would have implications on caching though…) Any ideas or suggestions which direction I should go with this? Thanks in advance. Nik Conwell Boston University nik(a)bu.edu<mailto:nik@bu.edu>

2 4

group naming help
by Zane Zakraisek 23 Nov '17

23 Nov '17

Hi, I'm looking at migrating my Red Hat 7.4 machines off nslcd and onto sssd. I've got a very simple sssd.conf here running SSSD 1.15.2. [sssd] domains = my.domain config_file_version = 2 services = nss, pam [domain/my.domain] ad_domain = my.domain krb5_realm = MY.DOMAIN realmd_tags = manages-system joined-with-samba cache_credentials = False id_provider = ad krb5_store_password_if_offline = false ldap_id_mapping = false access_provider = ad #enumerate = true A lot of my groups have a samAccountName that differs from their cn. I've noticed that I can't seem to get consistent group names. When running 'ls -l', it seems like some files show the samAccountName of the group, others show the cn of the group. Running 'groups' or 'id $USER' always shows the samAccountName. Is there a way that I can get SSSD to do everything by the cn of the group? ZZ

2 1

Suggested workarounds for stale kdcinfo.REALM cache file?
by Mark Ignacio 17 Nov '17

17 Nov '17

Hey folks, During an internal reliability test, we recently found out that /var/lib/sss/pubconf/kdcinfo.${REALM} stays static even when the IP cached there is unreachable or down. During the test, kinit failed consistently for those unfortunate to have a bad KDC cached. I found this draft document which would probably solve this issue for us: https://docs.pagure.org/SSSD.sssd/design_pages/kerberos_locator_red esign.html But until said redesign happens, I'm thinking about workarounds. One idea is symlinking that file to /dev/null, another would be just periodically rm-ing it. I'm trying the first today on my laptop and it seems fine, but I haven't really tested it past that. Any suggestions?

2 2

id -G user only showing primary group
by Jeff Sadowski 17 Nov '17

17 Nov '17

I'm running Fedora 26 sssd --version 1.15.3 I am authentication against an Active Directory Domain that has posix extensions enabled. All my ubuntu and centos machines are using power broker or winbind to authenticate to the domain. I want to transition away from power broker. I tried using winbind to connect fedora but I end up with issues of it not using posix extensions from my active directory. So I tried sssd out and see that users show correctly when I run the command getent passwd <username> when using winbind I had to use template for the shell and home directories which I did not like. This is not happening on my ubuntu or centos servers with the same config. There config if it helps is as follows [global] security = ads realm = MIND.UNM.EDU workgroup = MIND idmap config * : backend = tdb idmap config * : range = 2000-7999 idmap config MIND:backend = ad idmap config MIND:schema_mode = rfc2307 idmap config MIND:range = 8000-9999999 winbind nss info = rfc2307 winbind use default domain = yes # so that the users show up in getent winbind enum users = yes # so that the groups show up in getent winbind enum groups = yes restrict anonymous = 2 #added the following 2 for the Badlock updates that change the defaults #to no longer work with my domain controllers ldap server require strong auth = no client ldap sasl wrapping = plain Since that wasn't working, I uninstalled winbind and reinstalled sssd (I had removed it while testing samba since I know they can interfere.) I used realm to leave and rejoin the domain It looks like realm rewrote my smb.conf file as such [global] security = user idmap config * : backend = tdb idmap config * : range = 2000-7999 idmap config MIND:backend = ad idmap config MIND:schema_mode = rfc2307 idmap config MIND:range = 8000-9999999 winbind nss info = rfc2307 winbind use default domain = yes # so that the users show up in getent winbind enum users = yes # so that the groups show up in getent winbind enum groups = yes restrict anonymous = 2 #added the following 2 for the Badlock updates that change the defaults #to no longer work with my domain controllers ldap server require strong auth = no client ldap sasl wrapping = plain template homedir=/na/homes/%U template shell=/bin/bash My sssd.conf file looks like so [sssd] domains = mind.unm.edu config_file_version = 2 services = nss, pam [domain/mind.unm.edu] ad_domain = mind.unm.edu krb5_realm = MIND.UNM.EDU realmd_tags = manages-system joined-with-adcli cache_credentials = True id_provider = ad krb5_store_password_if_offline = True default_shell = /bin/bash #ldap_id_mapping = True ldap_id_mapping = False #use_fully_qualified_names = True use_fully_qualified_names = False fallback_homedir = /home/%u@%d access_provider = ad # debug = 3 I learned with ldap_id_mapping = True I was getting funny uid's and that interfered with my isilon that is using rfc2307 to our domain. And I want to login with <username> not <domain>\\<username> so i set use_fully_qualified_names = False While reading this https://docs.pagure.org/SSSD.sssd/users/troubleshooting.html under sections: Common AD provider issues->A group my user is a member of doesn’t display in the id output In case the group is not present in the id -G output at all, there is something up with the initgroups part. This is the case but I'm not really sure where to go from here. I set debug on the domain to 3 and my /var/log/sssd/sssd_<domainname> looks as follows when I run id -G <user> in this case the user is jsadowski id -G <username> is only showing the primary group for any user I have tried. ... (Tue Oct 31 09:16:10 2017) [sssd[be[mind.unm.edu]]] [orderly_shutdown] (0x0010): SIGTERM: killing children (Tue Oct 31 09:17:11 2017) [sssd[be[mind.unm.edu]]] [orderly_shutdown] (0x0010): SIGTERM: killing children (Tue Oct 31 09:17:39 2017) [sssd[be[mind.unm.edu]]] [orderly_shutdown] (0x0010): SIGTERM: killing children (Tue Oct 31 09:17:39 2017) [sssd[be[mind.unm.edu]]] [get_access_filter] (0x0010): Warning: LDAP access rule 'filter' is set, but no ldap_access_filter configured. All domain users will be denied access. (Tue Oct 31 09:18:16 2017) [sssd[be[mind.unm.edu]]] [orderly_shutdown] (0x0010): SIGTERM: killing children (Tue Oct 31 09:21:03 2017) [sssd[be[mind.unm.edu]]] [orderly_shutdown] (0x0010): SIGTERM: killing children (Tue Oct 31 09:21:54 2017) [sssd[be[mind.unm.edu]]] [orderly_shutdown] (0x0010): SIGTERM: killing children (Tue Oct 31 09:21:54 2017) [sssd[be[mind.unm.edu]]] [krb5_init_kdc] (0x0010): Missing krb5_realm option! (Tue Oct 31 09:21:54 2017) [sssd[be[mind.unm.edu]]] [dp_module_run_constructor] (0x0010): Module [krb5] constructor failed [22]: Invalid argument (Tue Oct 31 09:21:54 2017) [sssd[be[mind.unm.edu]]] [dp_target_init] (0x0010): Unable to load module krb5 (Tue Oct 31 09:21:54 2017) [sssd[be[mind.unm.edu]]] [be_process_init] (0x0010): Unable to setup data provider [1432158209]: Internal Error (Tue Oct 31 09:21:54 2017) [sssd[be[mind.unm.edu]]] [main] (0x0010): Could not initialize backend [1432158209] (Tue Oct 31 09:21:54 2017) [sssd[be[mind.unm.edu]]] [krb5_init_kdc] (0x0010): Missing krb5_realm option! (Tue Oct 31 09:21:54 2017) [sssd[be[mind.unm.edu]]] [dp_module_run_constructor] (0x0010): Module [krb5] constructor failed [22]: Invalid argument (Tue Oct 31 09:21:54 2017) [sssd[be[mind.unm.edu]]] [dp_target_init] (0x0010): Unable to load module krb5 (Tue Oct 31 09:21:54 2017) [sssd[be[mind.unm.edu]]] [be_process_init] (0x0010): Unable to setup data provider [1432158209]: Internal Error (Tue Oct 31 09:21:54 2017) [sssd[be[mind.unm.edu]]] [main] (0x0010): Could not initialize backend [1432158209] (Tue Oct 31 09:21:56 2017) [sssd[be[mind.unm.edu]]] [krb5_init_kdc] (0x0010): Missing krb5_realm option! (Tue Oct 31 09:21:56 2017) [sssd[be[mind.unm.edu]]] [dp_module_run_constructor] (0x0010): Module [krb5] constructor failed [22]: Invalid argument (Tue Oct 31 09:21:56 2017) [sssd[be[mind.unm.edu]]] [dp_target_init] (0x0010): Unable to load module krb5 (Tue Oct 31 09:21:56 2017) [sssd[be[mind.unm.edu]]] [be_process_init] (0x0010): Unable to setup data provider [1432158209]: Internal Error (Tue Oct 31 09:21:56 2017) [sssd[be[mind.unm.edu]]] [main] (0x0010): Could not initialize backend [1432158209] (Tue Oct 31 09:22:00 2017) [sssd[be[mind.unm.edu]]] [krb5_init_kdc] (0x0010): Missing krb5_realm option! (Tue Oct 31 09:22:00 2017) [sssd[be[mind.unm.edu]]] [dp_module_run_constructor] (0x0010): Module [krb5] constructor failed [22]: Invalid argument (Tue Oct 31 09:22:00 2017) [sssd[be[mind.unm.edu]]] [dp_target_init] (0x0010): Unable to load module krb5 (Tue Oct 31 09:22:00 2017) [sssd[be[mind.unm.edu]]] [be_process_init] (0x0010): Unable to setup data provider [1432158209]: Internal Error (Tue Oct 31 09:22:00 2017) [sssd[be[mind.unm.edu]]] [main] (0x0010): Could not initialize backend [1432158209] (Tue Oct 31 09:23:45 2017) [sssd[be[mind.unm.edu]]] [orderly_shutdown] (0x0010): SIGTERM: killing children (Tue Oct 31 09:26:03 2017) [sssd[be[mind.unm.edu]]] [orderly_shutdown] (0x0010): SIGTERM: killing children (Tue Oct 31 09:36:00 2017) [sssd[be[mind.unm.edu]]] [orderly_shutdown] (0x0010): SIGTERM: killing children ... (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [ad_sasl_log] (0x0040): SASL: GSSAPI Error: Unspecified GSS failure. Minor code may provide more information (Server not found in Kerberos database) (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [sasl_bind_send] (0x0020): ldap_sasl_bind failed (-2)[Local error] (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [sasl_bind_send] (0x0080): Extended failure message: [SASL(-1): generic failure: GSSAPI Error: Unspecified GSS failure. Minor code may provide more information (Server not found in Kerberos database)] (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [sdap_cli_connect_recv] (0x0040): Unable to establish connection [1432158226]: Authentication Failed (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [be_run_online_cb] (0x0080): Going online. Running callbacks. (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [be_ptask_enable] (0x0080): Task [Subdomains Refresh]: already enabled (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [be_ptask_enable] (0x0080): Task [SUDO Smart Refresh]: already enabled (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [be_ptask_enable] (0x0080): Task [SUDO Full Refresh]: already enabled (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [be_ptask_enable] (0x0080): Task [AD machine account password renewal]: already enabled (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [resolv_gethostbyname_done] (0x0040): querying hosts database failed [5]: Input/output error (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [nsupdate_get_addrs_done] (0x0040): Could not resolve address for this machine, error [5]: Input/output error, resolver returned: [11]: Could not contact DNS servers (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [nsupdate_get_addrs_done] (0x0040): nsupdate_get_addrs_done failed: [5]: [Input/output error] (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [sdap_dyndns_dns_addrs_done] (0x0040): Could not receive list of current addresses [5]: Input/output error (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [ad_dyndns_sdap_update_done] (0x0040): Dynamic DNS update failed [5]: Input/output error (Tue Oct 31 10:16:44 2017) [sssd[be[mind.unm.edu]]] [ad_dyndns_nsupdate_done] (0x0040): Updating DNS entry failed [5]: Input/output error (Tue Oct 31 10:16:51 2017) [sssd[be[mind.unm.edu]]] [ad_sasl_log] (0x0040): SASL: GSSAPI Error: Unspecified GSS failure. Minor code may provide more information (Server not found in Kerberos database) (Tue Oct 31 10:16:51 2017) [sssd[be[mind.unm.edu]]] [sasl_bind_send] (0x0020): ldap_sasl_bind failed (-2)[Local error] (Tue Oct 31 10:16:51 2017) [sssd[be[mind.unm.edu]]] [sasl_bind_send] (0x0080): Extended failure message: [SASL(-1): generic failure: GSSAPI Error: Unspecified GSS failure. Minor code may provide more information (Server not found in Kerberos database)] (Tue Oct 31 10:16:51 2017) [sssd[be[mind.unm.edu]]] [sdap_cli_connect_recv] (0x0040): Unable to establish connection [1432158226]: Authentication Failed (Tue Oct 31 10:16:51 2017) [sssd[be[mind.unm.edu]]] [sdap_ad_tokengroups_get_posix_members] (0x0080): Domain not found for SID S-1-5-32-545 (Tue Oct 31 10:16:51 2017) [sssd[be[mind.unm.edu]]] [sdap_ad_tokengroups_get_posix_members] (0x0080): Domain not found for SID S-1-5-32-544 (Tue Oct 31 10:16:51 2017) [sssd[be[mind.unm.edu]]] [sdap_ad_tokengroups_get_posix_members] (0x0080): Domain not found for SID S-1-5-32-555 (Tue Oct 31 10:16:51 2017) [sssd[be[mind.unm.edu]]] [sdap_ad_tokengroups_get_posix_members] (0x0080): Domain not found for SID S-1-5-32-551 (Tue Oct 31 10:16:51 2017) [sssd[be[mind.unm.edu]]] [sysdb_mod_group_member] (0x0080): ldb_modify failed: [No such attribute](16)[attribute 'member': no matching attribute value while deleting attribute on 'name=Administrators(a)mind.unm.edu,cn=groups,cn=mind.unm.edu,cn=sysdb'] (Tue Oct 31 10:16:51 2017) [sssd[be[mind.unm.edu]]] [sysdb_error_to_errno] (0x0020): LDB returned unexpected error: [No such attribute] (Tue Oct 31 10:16:51 2017) [sssd[be[mind.unm.edu]]] [sysdb_update_members_ex] (0x0020): Could not remove member [jsadowski(a)mind.unm.edu] from group [name=Administrators(a)mind.unm.edu,cn=groups,cn=mind.unm.edu,cn=sysdb]. Skipping (Tue Oct 31 10:16:54 2017) [sssd[be[mind.unm.edu]]] [sdap_sudo_load_sudoers_done] (0x0040): Received 0 sudo rules

2 1

what are the causes of Port status of port 389 for server is 'not working'
by Jeremy Monnet 17 Nov '17

17 Nov '17

Hi, I have that error message that I do not understand, because I have 2 ubuntu servers setup the same way (but 1 ubuntu 14.04 and 1 ubuntu 16.04). Ubuntu 14 is working fine, I can authenticate and sudo just fine, Ubuntu 16 can list users and groups but I cannot authenticate nor sudo. And I see in the sssd_domain.log : (Fri Oct 20 16:27:29 2017) [sssd[be[domain]]] [fo_resolve_service_send] (0x0100): Trying to resolve service 'AD' (Fri Oct 20 16:27:29 2017) [sssd[be[domain]]] [get_server_status] (0x1000): Status of server '<servername>' is 'name resolved' (Fri Oct 20 16:27:29 2017) [sssd[be[domain]]] [get_port_status] (0x1000): Port status of port 389 for server '<servername>' is 'not working' (Fri Oct 20 16:27:29 2017) [sssd[be[domain]]] [get_server_status] (0x1000): Status of server '<servername2>' is 'name resolved' (Fri Oct 20 16:27:29 2017) [sssd[be[domain]]] [get_port_status] (0x1000): Port status of port 389 for server '<servername2>' is 'not working' (Fri Oct 20 16:27:29 2017) [sssd[be[domain]]] [fo_resolve_service_send] (0x0020): No available servers for service 'AD' (Fri Oct 20 16:27:29 2017) [sssd[be[domain]]] [be_resolve_server_done] (0x1000): Server resolution failed: 5 (Fri Oct 20 16:27:29 2017) [sssd[be[domain]]] [sdap_id_op_connect_done] (0x0020): Failed to connect, going offline (5 [Input/output error]) Of course, port 389 is indeed reachable, and I have joined and re-joined the domain several times, deleted the object computer in AD, checked several times that the keytab was created, and that I could kinit with it... One thing is that I join a child AD domain and tries to login with an account from the main domain, that is probably an issue, but as that work on the other Ubuntu with the same setup, I am stuck... Thanks, Jeremy

2 8

AD auth with multiple domains
by Jeremy Monnet 17 Nov '17

17 Nov '17

Hi, I am trying to setup an authentication against Active Directory, with multiple domains, and I haven't been able to find the recommended way to do it (it is very possible I missed it...), so I am looking for explanation and advice. With a master domain example.com, and subdomains sub1.example.com, sub2.example.com, etc, how would you setup sssd (and the linux system) to authenticate the users from all the domains ? To give te example, my user is ad admin across all the forests ( my_user(a)example.com), and I want to authenticate on all the servers, smtp.example.com or proxy.sub1.example.com, etc. I also want on some computer to authenticate customer's account (my_customer(a)sub1.example.com). For now, I have 2 different setups : - on computers from example.com [sssd] config_file_version = 2 debug_level =0 domains = example.com services = nss, pam [domain/example.com] enumerate = true dns_discovery_domain = cy2._sites.example.com debug_level = 8 id_provider = ad access_provider = ad ldap_id_mapping = false #dyndns_update = false - on computer from sub1.example.com [sssd] config_file_version = 2 debug_level =0 domains = sub1.example.com,example.com services = nss, pam [domain/example.com] enumerate = true dns_discovery_domain = cy2._sites.example.com debug_level = 9 id_provider = ad access_provider = ad ldap_id_mapping = false [domain/sub1.example.com] enumerate = true dns_discovery_domain = cy2._sites.sub1.example.com debug_level = 7 id_provider = ad access_provider = ad ldap_id_mapping = false I join computer to example.com or to sub1.example.com: adcli join example.com -U my_user(a)EXAMPLE.COM or adcli join sub1.example.com -U my_user(a)EXAMPLE.COM as I would do with an ordinary windows workstation. And for AD, I use the posix attributes (and that may be the way...) so if a UID or GID exists in both domains, I happen to find wrong group names, etc. I hope my questions are clear enough ! :-) What am I doing wrong ? What are the recommended settings for that situation ? Thanks, Jeremy

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sssd-users November 2017