FreeRadius LDAP connection to Google Workspce

Benjamin Diehl benjamin.diehl at foundationacademy.net
Fri Oct 1 15:02:12 CEST 2021


I am running into an issue with connecting to Google LDAP service (1), oddly enough if I change it from ldaps://ldap.google.com:636 to just ldap://ldap.xxxxxxxxxx it will “connect” but it will change the port to 389. (2) When its on the ldap version it will run but says it fails - ldap: ERROR: Failed performing search: Confidentiality required

(1)
rlm_ldap (ldap): Opening additional connection (0), 1 of 32 pending slots used
rlm_ldap (ldap): Connecting to ldaps://ldap.google.com:636
TLS: can't connect: (unknown error code).
rlm_ldap (ldap): Bind with admin at foundationacademy.net to ldaps://ldap.google.com:636 failed: Can't contact LDAP server
rlm_ldap (ldap): Opening connection failed (0)
rlm_ldap (ldap): Removing connection pool
/etc/freeradius/3.0/mods-enabled/ldap[8]: Instantiation failed for module "ldap"

(2)
rlm_ldap (ldap): Opening additional connection (5), 1 of 27 pending slots used
rlm_ldap (ldap): Connecting to ldap://ldap.google.com:389
rlm_ldap (ldap): Waiting for bind result...
rlm_ldap (ldap): Bind successful
(0) 	[ldap] = fail
(0)   } # authorize = fail
(0) Invalid user (ldap: Failed performing search: Confidentiality required):


I have included the full code below. (1)
root at FreeRadius:~# freeradius -X
FreeRADIUS Version 3.0.20
Copyright (C) 1999-2019 The FreeRADIUS server project and contributors
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE
You may redistribute copies of FreeRADIUS under the terms of the
GNU General Public License
For more information about these matters, see the file named COPYRIGHT
Starting - reading configuration files ...
including dictionary file /usr/share/freeradius/dictionary
including dictionary file /usr/share/freeradius/dictionary.dhcp
including dictionary file /usr/share/freeradius/dictionary.vqp
including dictionary file /etc/freeradius/3.0/dictionary
including configuration file /etc/freeradius/3.0/radiusd.conf
including configuration file /etc/freeradius/3.0/proxy.conf
including configuration file /etc/freeradius/3.0/clients.conf
including files in directory /etc/freeradius/3.0/mods-enabled/
including configuration file /etc/freeradius/3.0/mods-enabled/dynamic_clients
including configuration file /etc/freeradius/3.0/mods-enabled/replicate
including configuration file /etc/freeradius/3.0/mods-enabled/detail
including configuration file /etc/freeradius/3.0/mods-enabled/ldap
including configuration file /etc/freeradius/3.0/mods-enabled/echo
including configuration file /etc/freeradius/3.0/mods-enabled/mschap
including configuration file /etc/freeradius/3.0/mods-enabled/unpack
including configuration file /etc/freeradius/3.0/mods-enabled/exec
including configuration file /etc/freeradius/3.0/mods-enabled/realm
including configuration file /etc/freeradius/3.0/mods-enabled/soh
including configuration file /etc/freeradius/3.0/mods-enabled/chap
including configuration file /etc/freeradius/3.0/mods-enabled/pap
including configuration file /etc/freeradius/3.0/mods-enabled/radutmp
including configuration file /etc/freeradius/3.0/mods-enabled/logintime
including configuration file /etc/freeradius/3.0/mods-enabled/cache_eap
including configuration file /etc/freeradius/3.0/mods-enabled/attr_filter
including configuration file /etc/freeradius/3.0/mods-enabled/sradutmp
including configuration file /etc/freeradius/3.0/mods-enabled/preprocess
including configuration file /etc/freeradius/3.0/mods-enabled/utf8
including configuration file /etc/freeradius/3.0/mods-enabled/expiration
including configuration file /etc/freeradius/3.0/mods-enabled/passwd
including configuration file /etc/freeradius/3.0/mods-enabled/digest
including configuration file /etc/freeradius/3.0/mods-enabled/linelog
including configuration file /etc/freeradius/3.0/mods-enabled/ntlm_auth
including configuration file /etc/freeradius/3.0/mods-enabled/unix
including configuration file /etc/freeradius/3.0/mods-enabled/always
including configuration file /etc/freeradius/3.0/mods-enabled/detail.log
including configuration file /etc/freeradius/3.0/mods-enabled/eap
including configuration file /etc/freeradius/3.0/mods-enabled/expr
including configuration file /etc/freeradius/3.0/mods-enabled/files
including files in directory /etc/freeradius/3.0/policy.d/
including configuration file /etc/freeradius/3.0/policy.d/filter
including configuration file /etc/freeradius/3.0/policy.d/dhcp
including configuration file /etc/freeradius/3.0/policy.d/debug
including configuration file /etc/freeradius/3.0/policy.d/accounting
including configuration file /etc/freeradius/3.0/policy.d/cui
including configuration file /etc/freeradius/3.0/policy.d/control
including configuration file /etc/freeradius/3.0/policy.d/abfab-tr
including configuration file /etc/freeradius/3.0/policy.d/moonshot-targeted-ids
including configuration file /etc/freeradius/3.0/policy.d/canonicalization
including configuration file /etc/freeradius/3.0/policy.d/operator-name
including configuration file /etc/freeradius/3.0/policy.d/eap
including configuration file /etc/freeradius/3.0/policy.d/rfc7542
including files in directory /etc/freeradius/3.0/sites-enabled/
including configuration file /etc/freeradius/3.0/sites-enabled/inner-tunnel
including configuration file /etc/freeradius/3.0/sites-enabled/default
main {
 security {
 	user = "freerad"
 	group = "freerad"
 	allow_core_dumps = no
 }
	name = "freeradius"
	prefix = "/usr"
	localstatedir = "/var"
	logdir = "/var/log/freeradius"
	run_dir = "/var/run/freeradius"
}
main {
	name = "freeradius"
	prefix = "/usr"
	localstatedir = "/var"
	sbindir = "/usr/sbin"
	logdir = "/var/log/freeradius"
	run_dir = "/var/run/freeradius"
	libdir = "/usr/lib/freeradius"
	radacctdir = "/var/log/freeradius/radacct"
	hostname_lookups = no
	max_request_time = 30
	cleanup_delay = 5
	max_requests = 16384
	pidfile = "/var/run/freeradius/freeradius.pid"
	checkrad = "/usr/sbin/checkrad"
	debug_level = 0
	proxy_requests = yes
 log {
 	stripped_names = no
 	auth = no
 	auth_badpass = no
 	auth_goodpass = no
 	colourise = yes
 	msg_denied = "You are already logged in - access denied"
 }
 resources {
 }
 security {
 	max_attributes = 200
 	reject_delay = 1.000000
 	status_server = yes
 }
}
radiusd: #### Loading Realms and Home Servers ####
 proxy server {
 	retry_delay = 5
 	retry_count = 3
 	default_fallback = no
 	dead_time = 120
 	wake_all_if_all_dead = no
 }
 home_server localhost {
 	ipaddr = 127.0.0.1
 	port = 1812
 	type = "auth"
 	secret = <<< secret >>>
 	response_window = 20.000000
 	response_timeouts = 1
 	max_outstanding = 65536
 	zombie_period = 40
 	status_check = "status-server"
 	ping_interval = 30
 	check_interval = 30
 	check_timeout = 4
 	num_answers_to_alive = 3
 	revive_interval = 120
  limit {
  	max_connections = 16
  	max_requests = 0
  	lifetime = 0
  	idle_timeout = 0
  }
  coa {
  	irt = 2
  	mrt = 16
  	mrc = 5
  	mrd = 30
  }
 }
 home_server_pool my_auth_failover {
	type = fail-over
	home_server = localhost
 }
 realm foundationacademy.net {
	auth_pool = my_auth_failover
 }
 realm LOCAL {
 }
radiusd: #### Loading Clients ####
 client localhost {
 	ipaddr = 172.16.13.29
 	require_message_authenticator = no
 	secret = <<< secret >>>
 	nas_type = "other"
 	proto = "*"
  limit {
  	max_connections = 16
  	lifetime = 0
  	idle_timeout = 30
  }
 }
 client localhost_ipv6 {
 	ipv6addr = ::1
 	require_message_authenticator = no
 	secret = <<< secret >>>
  limit {
  	max_connections = 16
  	lifetime = 0
  	idle_timeout = 30
  }
 }
Debugger not attached
systemd watchdog is disabled
 # Creating Auth-Type = mschap
 # Creating Auth-Type = ldap
 # Creating Auth-Type = eap
 # Creating Auth-Type = PAP
 # Creating Auth-Type = CHAP
 # Creating Auth-Type = MS-CHAP
 # Creating Auth-Type = digest
radiusd: #### Instantiating modules ####
 modules {
  # Loaded module rlm_dynamic_clients
  # Loading module "dynamic_clients" from file /etc/freeradius/3.0/mods-enabled/dynamic_clients
  # Loaded module rlm_replicate
  # Loading module "replicate" from file /etc/freeradius/3.0/mods-enabled/replicate
  # Loaded module rlm_detail
  # Loading module "detail" from file /etc/freeradius/3.0/mods-enabled/detail
  detail {
  	filename = "/var/log/freeradius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/detail-%Y%m%d"
  	header = "%t"
  	permissions = 384
  	locking = no
  	escape_filenames = no
  	log_packet_header = no
  }
  # Loaded module rlm_ldap
  # Loading module "ldap" from file /etc/freeradius/3.0/mods-enabled/ldap
  ldap {
  	server = "ldaps://ldap.google.com"
  	identity = "admin at foundationacademy.net"
  	password = <<< secret >>>
   sasl {
   }
  	user_dn = "LDAP-UserDn"
   user {
   	scope = "sub"
   	access_positive = yes
    sasl {
    }
   }
   group {
   	filter = "(objectClass=posixGroup)"
   	scope = "sub"
   	name_attribute = "cn"
   	membership_attribute = "memberOf"
   	cacheable_name = no
   	cacheable_dn = no
   	allow_dangling_group_ref = no
   }
   client {
   	filter = "(objectClass=radiusClient)"
   	scope = "sub"
   	base_dn = "dc=foundationacademy,dc=net"
   }
   profile {
   }
   options {
   	ldap_debug = 40
   	chase_referrals = yes
   	rebind = yes
   	net_timeout = 1
   	res_timeout = 10
   	srv_timelimit = 3
   	idle = 60
   	probes = 3
   	interval = 3
   }
   tls {
   	start_tls = no
   }
  }
Creating attribute LDAP-Group
  # Loaded module rlm_exec
  # Loading module "echo" from file /etc/freeradius/3.0/mods-enabled/echo
  exec echo {
  	wait = yes
  	program = "/bin/echo %{User-Name}"
  	input_pairs = "request"
  	output_pairs = "reply"
  	shell_escape = yes
  }
  # Loaded module rlm_mschap
  # Loading module "mschap" from file /etc/freeradius/3.0/mods-enabled/mschap
  mschap {
  	use_mppe = yes
  	require_encryption = no
  	require_strong = no
  	with_ntdomain_hack = yes
   passchange {
   }
  	allow_retry = yes
  	winbind_retry_with_normalised_username = no
  }
  # Loaded module rlm_unpack
  # Loading module "unpack" from file /etc/freeradius/3.0/mods-enabled/unpack
  # Loading module "exec" from file /etc/freeradius/3.0/mods-enabled/exec
  exec {
  	wait = no
  	input_pairs = "request"
  	shell_escape = yes
  	timeout = 10
  }
  # Loaded module rlm_realm
  # Loading module "IPASS" from file /etc/freeradius/3.0/mods-enabled/realm
  realm IPASS {
  	format = "prefix"
  	delimiter = "/"
  	ignore_default = no
  	ignore_null = no
  }
  # Loading module "suffix" from file /etc/freeradius/3.0/mods-enabled/realm
  realm suffix {
  	format = "suffix"
  	delimiter = "@"
  	ignore_default = no
  	ignore_null = no
  }
  # Loading module "bangpath" from file /etc/freeradius/3.0/mods-enabled/realm
  realm bangpath {
  	format = "prefix"
  	delimiter = "!"
  	ignore_default = no
  	ignore_null = no
  }
  # Loading module "realmpercent" from file /etc/freeradius/3.0/mods-enabled/realm
  realm realmpercent {
  	format = "suffix"
  	delimiter = "%"
  	ignore_default = no
  	ignore_null = no
  }
  # Loading module "ntdomain" from file /etc/freeradius/3.0/mods-enabled/realm
  realm ntdomain {
  	format = "prefix"
  	delimiter = "\\"
  	ignore_default = no
  	ignore_null = no
  }
  # Loaded module rlm_soh
  # Loading module "soh" from file /etc/freeradius/3.0/mods-enabled/soh
  soh {
  	dhcp = yes
  }
  # Loaded module rlm_chap
  # Loading module "chap" from file /etc/freeradius/3.0/mods-enabled/chap
  # Loaded module rlm_pap
  # Loading module "pap" from file /etc/freeradius/3.0/mods-enabled/pap
  pap {
  	normalise = yes
  }
  # Loaded module rlm_radutmp
  # Loading module "radutmp" from file /etc/freeradius/3.0/mods-enabled/radutmp
  radutmp {
  	filename = "/var/log/freeradius/radutmp"
  	username = "%{User-Name}"
  	case_sensitive = yes
  	check_with_nas = yes
  	permissions = 384
  	caller_id = yes
  }
  # Loaded module rlm_logintime
  # Loading module "logintime" from file /etc/freeradius/3.0/mods-enabled/logintime
  logintime {
  	minimum_timeout = 60
  }
  # Loaded module rlm_cache
  # Loading module "cache_eap" from file /etc/freeradius/3.0/mods-enabled/cache_eap
  cache cache_eap {
  	driver = "rlm_cache_rbtree"
  	key = "%{%{control:State}:-%{%{reply:State}:-%{State}}}"
  	ttl = 15
  	max_entries = 0
  	epoch = 0
  	add_stats = no
  }
  # Loaded module rlm_attr_filter
  # Loading module "attr_filter.post-proxy" from file /etc/freeradius/3.0/mods-enabled/attr_filter
  attr_filter attr_filter.post-proxy {
  	filename = "/etc/freeradius/3.0/mods-config/attr_filter/post-proxy"
  	key = "%{Realm}"
  	relaxed = no
  }
  # Loading module "attr_filter.pre-proxy" from file /etc/freeradius/3.0/mods-enabled/attr_filter
  attr_filter attr_filter.pre-proxy {
  	filename = "/etc/freeradius/3.0/mods-config/attr_filter/pre-proxy"
  	key = "%{Realm}"
  	relaxed = no
  }
  # Loading module "attr_filter.access_reject" from file /etc/freeradius/3.0/mods-enabled/attr_filter
  attr_filter attr_filter.access_reject {
  	filename = "/etc/freeradius/3.0/mods-config/attr_filter/access_reject"
  	key = "%{User-Name}"
  	relaxed = no
  }
  # Loading module "attr_filter.access_challenge" from file /etc/freeradius/3.0/mods-enabled/attr_filter
  attr_filter attr_filter.access_challenge {
  	filename = "/etc/freeradius/3.0/mods-config/attr_filter/access_challenge"
  	key = "%{User-Name}"
  	relaxed = no
  }
  # Loading module "attr_filter.accounting_response" from file /etc/freeradius/3.0/mods-enabled/attr_filter
  attr_filter attr_filter.accounting_response {
  	filename = "/etc/freeradius/3.0/mods-config/attr_filter/accounting_response"
  	key = "%{User-Name}"
  	relaxed = no
  }
  # Loading module "sradutmp" from file /etc/freeradius/3.0/mods-enabled/sradutmp
  radutmp sradutmp {
  	filename = "/var/log/freeradius/sradutmp"
  	username = "%{User-Name}"
  	case_sensitive = yes
  	check_with_nas = yes
  	permissions = 420
  	caller_id = no
  }
  # Loaded module rlm_preprocess
  # Loading module "preprocess" from file /etc/freeradius/3.0/mods-enabled/preprocess
  preprocess {
  	huntgroups = "/etc/freeradius/3.0/mods-config/preprocess/huntgroups"
  	hints = "/etc/freeradius/3.0/mods-config/preprocess/hints"
  	with_ascend_hack = no
  	ascend_channels_per_line = 23
  	with_ntdomain_hack = no
  	with_specialix_jetstream_hack = no
  	with_cisco_vsa_hack = no
  	with_alvarion_vsa_hack = no
  }
  # Loaded module rlm_utf8
  # Loading module "utf8" from file /etc/freeradius/3.0/mods-enabled/utf8
  # Loaded module rlm_expiration
  # Loading module "expiration" from file /etc/freeradius/3.0/mods-enabled/expiration
  # Loaded module rlm_passwd
  # Loading module "etc_passwd" from file /etc/freeradius/3.0/mods-enabled/passwd
  passwd etc_passwd {
  	filename = "/etc/passwd"
  	format = "*User-Name:Crypt-Password:"
  	delimiter = ":"
  	ignore_nislike = no
  	ignore_empty = yes
  	allow_multiple_keys = no
  	hash_size = 100
  }
  # Loaded module rlm_digest
  # Loading module "digest" from file /etc/freeradius/3.0/mods-enabled/digest
  # Loaded module rlm_linelog
  # Loading module "linelog" from file /etc/freeradius/3.0/mods-enabled/linelog
  linelog {
  	filename = "/var/log/freeradius/linelog"
  	escape_filenames = no
  	syslog_severity = "info"
  	permissions = 384
  	format = "This is a log message for %{User-Name}"
  	reference = "messages.%{%{reply:Packet-Type}:-default}"
  }
  # Loading module "log_accounting" from file /etc/freeradius/3.0/mods-enabled/linelog
  linelog log_accounting {
  	filename = "/var/log/freeradius/linelog-accounting"
  	escape_filenames = no
  	syslog_severity = "info"
  	permissions = 384
  	format = ""
  	reference = "Accounting-Request.%{%{Acct-Status-Type}:-unknown}"
  }
  # Loading module "ntlm_auth" from file /etc/freeradius/3.0/mods-enabled/ntlm_auth
  exec ntlm_auth {
  	wait = yes
  	program = "/path/to/ntlm_auth --request-nt-key --domain=MYDOMAIN --username=%{mschap:User-Name} --password=%{User-Password}"
  	shell_escape = yes
  }
  # Loaded module rlm_unix
  # Loading module "unix" from file /etc/freeradius/3.0/mods-enabled/unix
  unix {
  	radwtmp = "/var/log/freeradius/radwtmp"
  }
Creating attribute Unix-Group
  # Loaded module rlm_always
  # Loading module "reject" from file /etc/freeradius/3.0/mods-enabled/always
  always reject {
  	rcode = "reject"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "fail" from file /etc/freeradius/3.0/mods-enabled/always
  always fail {
  	rcode = "fail"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "ok" from file /etc/freeradius/3.0/mods-enabled/always
  always ok {
  	rcode = "ok"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "handled" from file /etc/freeradius/3.0/mods-enabled/always
  always handled {
  	rcode = "handled"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "invalid" from file /etc/freeradius/3.0/mods-enabled/always
  always invalid {
  	rcode = "invalid"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "userlock" from file /etc/freeradius/3.0/mods-enabled/always
  always userlock {
  	rcode = "userlock"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "notfound" from file /etc/freeradius/3.0/mods-enabled/always
  always notfound {
  	rcode = "notfound"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "noop" from file /etc/freeradius/3.0/mods-enabled/always
  always noop {
  	rcode = "noop"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "updated" from file /etc/freeradius/3.0/mods-enabled/always
  always updated {
  	rcode = "updated"
  	simulcount = 0
  	mpp = no
  }
  # Loading module "auth_log" from file /etc/freeradius/3.0/mods-enabled/detail.log
  detail auth_log {
  	filename = "/var/log/freeradius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/auth-detail-%Y%m%d"
  	header = "%t"
  	permissions = 384
  	locking = no
  	escape_filenames = no
  	log_packet_header = no
  }
  # Loading module "reply_log" from file /etc/freeradius/3.0/mods-enabled/detail.log
  detail reply_log {
  	filename = "/var/log/freeradius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/reply-detail-%Y%m%d"
  	header = "%t"
  	permissions = 384
  	locking = no
  	escape_filenames = no
  	log_packet_header = no
  }
  # Loading module "pre_proxy_log" from file /etc/freeradius/3.0/mods-enabled/detail.log
  detail pre_proxy_log {
  	filename = "/var/log/freeradius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/pre-proxy-detail-%Y%m%d"
  	header = "%t"
  	permissions = 384
  	locking = no
  	escape_filenames = no
  	log_packet_header = no
  }
  # Loading module "post_proxy_log" from file /etc/freeradius/3.0/mods-enabled/detail.log
  detail post_proxy_log {
  	filename = "/var/log/freeradius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/post-proxy-detail-%Y%m%d"
  	header = "%t"
  	permissions = 384
  	locking = no
  	escape_filenames = no
  	log_packet_header = no
  }
  # Loaded module rlm_eap
  # Loading module "eap" from file /etc/freeradius/3.0/mods-enabled/eap
  eap {
  	default_eap_type = "ttls"
  	timer_expire = 60
  	ignore_unknown_eap_types = no
  	cisco_accounting_username_bug = no
  	max_sessions = 16384
  }
  # Loaded module rlm_expr
  # Loading module "expr" from file /etc/freeradius/3.0/mods-enabled/expr
  expr {
  	safe_characters = "@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_: /äéöüàâæçèéêëîïôœùûüaÿÄÉÖÜßÀ ÆÇÈÉÊËÎÏÔŒÙÛÜŸ"
  }
  # Loaded module rlm_files
  # Loading module "files" from file /etc/freeradius/3.0/mods-enabled/files
  files {
  	filename = "/etc/freeradius/3.0/mods-config/files/authorize"
  	acctusersfile = "/etc/freeradius/3.0/mods-config/files/accounting"
  	preproxy_usersfile = "/etc/freeradius/3.0/mods-config/files/pre-proxy"
  }
  instantiate {
  }
  # Instantiating module "detail" from file /etc/freeradius/3.0/mods-enabled/detail
  # Instantiating module "ldap" from file /etc/freeradius/3.0/mods-enabled/ldap
rlm_ldap: libldap vendor: OpenLDAP, version: 20449
   accounting {
   	reference = "%{tolower:type.%{Acct-Status-Type}}"
   }
   post-auth {
   	reference = "."
   }
rlm_ldap (ldap): Initialising connection pool
   pool {
   	start = 5
   	min = 3
   	max = 32
   	spare = 10
   	uses = 0
   	lifetime = 0
   	cleanup_interval = 30
   	idle_timeout = 60
   	retry_delay = 30
   	spread = no
   }
rlm_ldap (ldap): Opening additional connection (0), 1 of 32 pending slots used
rlm_ldap (ldap): Connecting to ldaps://ldap.google.com:636
TLS: can't connect: (unknown error code).
rlm_ldap (ldap): Bind with admin at foundationacademy.net to ldaps://ldap.google.com:636 failed: Can't contact LDAP server
rlm_ldap (ldap): Opening connection failed (0)
rlm_ldap (ldap): Removing connection pool
/etc/freeradius/3.0/mods-enabled/ldap[8]: Instantiation failed for module "ldap"




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