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-title: Untitled Page
-description: 
-published: true
-date: 2026-01-21T13:19:48.685Z
-tags: 
-editor: markdown
-dateCreated: 2026-01-21T13:19:48.685Z
----
-
-# Header
-Your content here
\ No newline at end of file
diff --git a/infrastructure/identity/ldap-client-setup.md b/infrastructure/identity/ldap-client-setup.md
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-title: LDAP Client Setup
-description: 
-published: true
-date: 2026-01-21T13:24:03.516Z
-tags: 
-editor: markdown
-dateCreated: 2026-01-21T13:21:40.588Z
----
-
-# Header
-Your content here✅ LLDAP + SSSD Node Join Checklist (FINAL)
-
-Assumptions
-
-LLDAP server: docker4
-
-LDAP URI: ldap://docker4:3890
-
-Base DN: dc=netgrimoire,dc=com
-
-Users/groups use lowercase attributes (uidnumber, gidnumber, homedirectory, unixshell, uniquemember)
-
-No TLS (lab only)
-
-Docker group GID = 1964 in LDAP
-
-This node is Ubuntu/Debian-based
-
-0️⃣ Safety first (do this every time)
-
-Open two SSH sessions to the node
-
-Confirm you can sudo
-
-Do not edit nsswitch.conf until SSSD is confirmed working
-
-1️⃣ Install required packages
-sudo apt update
-sudo apt install -y \
-  sssd sssd-ldap sssd-tools \
-  libpam-sss libnss-sss libsss-sudo \
-  ldap-utils oddjob oddjob-mkhomedir
-
-Ensure legacy LDAP NSS is NOT installed
-sudo apt purge -y libnss-ldap libpam-ldap nslcd libnss-ldapd libpam-ldapd || true
-sudo apt autoremove -y
-
-2️⃣ Verify LDAP connectivity (must pass)
-getent hosts docker4
-nc -vz docker4 3890
-ldapwhoami -x -H ldap://docker4:3890 \
-  -D 'uid=admin,ou=people,dc=netgrimoire,dc=com' -w 'F@lcon13'
-
-
-❌ If any fail → stop and fix networking/DNS/firewall.
-
-3️⃣ Create /etc/sssd/sssd.conf (single file, no includes)
-sudo vi /etc/sssd/sssd.conf
-
-
-Paste exactly:
-
-[sssd]
-services = nss, pam, ssh
-config_file_version = 2
-domains = netgrimoire.com
-
-[nss]
-filter_users = root
-filter_groups = root
-
-[pam]
-offline_failed_login_attempts = 3
-offline_failed_login_delay = 5
-
-[ssh]
-
-[domain/netgrimoire.com]
-id_provider = ldap
-auth_provider = ldap
-chpass_provider = ldap
-access_provider = permit
-
-enumerate = false
-cache_credentials = true
-
-ldap_uri = ldap://docker4:3890
-ldap_schema = rfc2307bis
-ldap_search_base = dc=netgrimoire,dc=com
-
-ldap_auth_disable_tls_never_use_in_production = true
-ldap_id_use_start_tls = false
-ldap_tls_reqcert = never
-
-ldap_default_bind_dn = uid=admin,ou=people,dc=netgrimoire,dc=com
-ldap_default_authtok = F@lcon13
-
-# USERS (lowercase attributes)
-ldap_user_search_base = ou=people,dc=netgrimoire,dc=com
-ldap_user_object_class = posixAccount
-ldap_user_name = uid
-ldap_user_gecos = cn
-ldap_user_uid_number = uidnumber
-ldap_user_gid_number = gidnumber
-ldap_user_home_directory = homedirectory
-ldap_user_shell = unixshell
-
-# GROUPS (lowercase attributes)
-ldap_group_search_base = ou=groups,dc=netgrimoire,dc=com
-ldap_group_object_class = groupOfUniqueNames
-ldap_group_name = cn
-ldap_group_gid_number = gidnumber
-ldap_group_member = uniquemember
-
-4️⃣ Fix permissions (SSSD will NOT start without this)
-sudo chown root:root /etc/sssd/sssd.conf
-sudo chmod 600 /etc/sssd/sssd.conf
-sudo chmod 700 /etc/sssd
-
-
-Validate:
-
-sudo sssctl config-check
-
-5️⃣ Start SSSD cleanly
-sudo systemctl enable sssd
-sudo systemctl stop sssd
-sudo rm -f /var/lib/sss/db/* /var/lib/sss/mc/*
-sudo systemctl start sssd
-
-
-Verify:
-
-sudo systemctl status sssd --no-pager -l
-sudo sssctl domain-status netgrimoire.com
-
-
-Expected:
-
-Online status: Online
-LDAP: docker4
-
-6️⃣ Enable NSS lookups via SSSD (LDAP-first)
-
-Edit /etc/nsswitch.conf:
-
-passwd: sss files systemd
-group:  sss files systemd
-shadow: sss files
-
-
-Test:
-
-getent passwd graymutt
-getent group docker
-id graymutt
-
-7️⃣ 🔑 RE-INITIALIZE PAM (THIS IS THE STEP YOU REMEMBERED)
-
-This step is mandatory on Debian/Ubuntu.
-
-sudo pam-auth-update
-
-In the menu, ENABLE:
-
-✅ Unix authentication
-
-✅ SSSD
-
-✅ Create home directory on login
-
-DISABLE:
-
-❌ LDAP Authentication (legacy)
-
-❌ Kerberos (unless you explicitly use it)
-
-Press OK.
-
-8️⃣ Verify PAM wiring
-grep pam_sss.so /etc/pam.d/common-*
-grep pam_mkhomedir /etc/pam.d/common-session
-
-
-You should see:
-
-session required pam_mkhomedir.so skel=/etc/skel umask=0022
-
-9️⃣ Final login test (definitive)
-ssh graymutt@localhost
-
-
-Expected:
-
-Login succeeds
-
-/home/graymutt is auto-created
-
-Correct LDAP groups present
-
-🔟 (Optional but recommended) Remove local docker group
-
-If the node has a local docker group (gid 998):
-
-sudo groupdel docker
-
-
-Verify:
-
-getent group docker
-
-
-Expected:
-
-docker:x:1964:graymutt,dockhand
-
-🧪 Fast troubleshooting commands
-sudo sssctl domain-status netgrimoire.com
-sudo tail -n 200 /var/log/sssd/sssd_netgrimoire.com.log
-sudo systemctl status sssd --no-pager -l