Updating sections to include sample template

docs/installation/6-ldap.md

@@ -179,7 +179,8 @@ LOGGING = {
 Ensure the file and path specified in logfile exist and are writable and executable by the application service account. Restart the netbox service and attempt to log into the site to trigger log entries to this file.
 
 
-## Authenticating with Active Directory (with or without the @fqdn.tld suffix)
+## Authenticating with Active Directory
+### Authentication with or without UPN suffix (@fqdn.tld)
 
 Integrating Active Directory for authentication can be a bit challenging. Handling different login formats is an edge case you can easily resolve. This solution will allow users to log in either using their full UPN or their username alone. Therefore, we need to filter the DN according to either the `sAMAccountName` or the `userPrincipalName`. The following configuration options will allow your users to enter their usernames in the format `username` or `username@domain.tld`.
 
@@ -210,3 +211,86 @@ AUTH_LDAP_USER_QUERY_FIELD = "username"
 ```
 
 With these configuration options, your users will be able to login either with or without the UPN suffix.
+
+### Sample `ldap_config.py` for Active Directory with LDAP Server Verification
+
+!!! info
+    This configuration is intended to serve as a template, but may need to be modified in accordance with your environment.
+
+```python
+import ldap
+from django_auth_ldap.config import LDAPSearch, NestedGroupOfNamesType
+
+# Server URI
+AUTH_LDAP_SERVER_URI = "ldaps://ad.example.com:3269"
+
+# The following may be needed if you are binding to Active Directory.
+AUTH_LDAP_CONNECTION_OPTIONS = {
+    ldap.OPT_REFERRALS: 0
+}
+
+# Set the DN and password for the NetBox service account.
+AUTH_LDAP_BIND_DN = "CN=NETBOXSA,OU=Service Accounts,DC=example,DC=com"
+AUTH_LDAP_BIND_PASSWORD = "demo"
+
+# Include this setting if you want to ignore certificate errors. This might be needed to accept a self-signed cert.
+# Note that this is a NetBox-specific setting which sets:
+#     ldap.set_option(ldap.OPT_X_TLS_REQUIRE_CERT, ldap.OPT_X_TLS_NEVER)
+LDAP_IGNORE_CERT_ERRORS = False
+
+# Include this setting if you want to validate the LDAP server certificates against a CA certificate directory on your server
+# Note that this is a NetBox-specific setting which sets:
+#     ldap.set_option(ldap.OPT_X_TLS_CACERTDIR, LDAP_CA_CERT_DIR)
+LDAP_CA_CERT_DIR = '/etc/ssl/certs'
+
+# Include this setting if you want to validate the LDAP server certificates against your own CA.
+# Note that this is a NetBox-specific setting which sets:
+#     ldap.set_option(ldap.OPT_X_TLS_CACERTFILE, LDAP_CA_CERT_FILE)
+LDAP_CA_CERT_FILE = '/path/to/example-CA.crt'
+
+# This search matches users with the sAMAccountName equal to the provided username. This is required if the user's
+# username is not in their DN (Active Directory).
+AUTH_LDAP_USER_SEARCH = LDAPSearch("ou=Users,dc=example,dc=com",
+                                    ldap.SCOPE_SUBTREE,
+                                    "(|(userPrincipalName=%(user)s)(sAMAccountName=%(user)s))",
+                                  )
+
+# If a user's DN is producible from their username, we don't need to search.
+AUTH_LDAP_USER_DN_TEMPLATE = None
+
+# You can map user attributes to Django attributes as so.
+AUTH_LDAP_USER_ATTR_MAP = {
+    "username": "sAMAccountName",
+    "email": "mail",
+    "first_name": "givenName",
+    "last_name": "sn",
+}
+
+AUTH_LDAP_USER_QUERY_FIELD = "username"
+
+# This search ought to return all groups to which the user belongs. django_auth_ldap uses this to determine group
+# hierarchy.
+AUTH_LDAP_GROUP_SEARCH = LDAPSearch("dc=example,dc=com", ldap.SCOPE_SUBTREE,
+                                    "(objectClass=group)")
+AUTH_LDAP_GROUP_TYPE = NestedGroupOfNamesType()
+
+# Define a group required to login.
+AUTH_LDAP_REQUIRE_GROUP = "CN=NETBOX_USERS,DC=example,DC=com"
+
+# Mirror LDAP group assignments.
+AUTH_LDAP_MIRROR_GROUPS = True
+
+# Define special user types using groups. Exercise great caution when assigning superuser status.
+AUTH_LDAP_USER_FLAGS_BY_GROUP = {
+    "is_active": "cn=active,ou=groups,dc=example,dc=com",
+    "is_staff": "cn=staff,ou=groups,dc=example,dc=com",
+    "is_superuser": "cn=superuser,ou=groups,dc=example,dc=com"
+}
+
+# For more granular permissions, we can map LDAP groups to Django groups.
+AUTH_LDAP_FIND_GROUP_PERMS = True
+
+# Cache groups for one hour to reduce LDAP traffic
+AUTH_LDAP_CACHE_TIMEOUT = 3600
+AUTH_LDAP_ALWAYS_UPDATE_USER = True
+```