FreeRadius LDAP Configuration

25 Mar 2024

      Hi team,

I am trying to setup ldap with freeradius but seeing the below error:

FreeRADIUS Version 3.2.3
Copyright (C) 1999-2022 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/dictionary
including configuration file /etc/freeradius/radiusd.conf
including configuration file /etc/freeradius/proxy.conf
including configuration file /etc/freeradius/clients.conf
including files in directory /etc/freeradius/mods-enabled/
including configuration file /etc/freeradius/mods-enabled/exec
including configuration file /etc/freeradius/mods-enabled/attr_filter
including configuration file /etc/freeradius/mods-enabled/dynamic_clients
including configuration file /etc/freeradius/mods-enabled/unpack
including configuration file /etc/freeradius/mods-enabled/unix
including configuration file /etc/freeradius/mods-enabled/date
including configuration file /etc/freeradius/mods-enabled/chap
including configuration file /etc/freeradius/mods-enabled/detail
including configuration file /etc/freeradius/mods-enabled/ldap
including configuration file /etc/freeradius/mods-enabled/pap
including configuration file /etc/freeradius/mods-enabled/always
including configuration file /etc/freeradius/mods-enabled/utf8
including configuration file /etc/freeradius/mods-enabled/logintime
including configuration file /etc/freeradius/mods-enabled/radutmp
including configuration file /etc/freeradius/mods-enabled/detail.log
including configuration file /etc/freeradius/mods-enabled/replicate
including configuration file /etc/freeradius/mods-enabled/soh
including configuration file /etc/freeradius/mods-enabled/linelog
including configuration file /etc/freeradius/mods-enabled/passwd
including configuration file /etc/freeradius/mods-enabled/files
including configuration file /etc/freeradius/mods-enabled/preprocess
including configuration file /etc/freeradius/mods-enabled/expr
including configuration file /etc/freeradius/mods-enabled/realm
including configuration file /etc/freeradius/mods-enabled/krb5
including configuration file /etc/freeradius/mods-enabled/sradutmp
including configuration file /etc/freeradius/mods-enabled/expiration
including configuration file /etc/freeradius/mods-enabled/mschap
including configuration file /etc/freeradius/mods-enabled/totp
including configuration file /etc/freeradius/mods-enabled/digest
including configuration file /etc/freeradius/mods-enabled/echo
including configuration file /etc/freeradius/mods-enabled/ntlm_auth
including configuration file /etc/freeradius/mods-enabled/eap
including files in directory /etc/freeradius/policy.d/
including configuration file /etc/freeradius/policy.d/abfab-tr
including configuration file /etc/freeradius/policy.d/accounting
including configuration file /etc/freeradius/policy.d/filter
including configuration file /etc/freeradius/policy.d/control
including configuration file /etc/freeradius/policy.d/canonicalization
including configuration file /etc/freeradius/policy.d/rfc7542
including configuration file /etc/freeradius/policy.d/debug
including configuration file /etc/freeradius/policy.d/operator-name
including configuration file /etc/freeradius/policy.d/cui
including configuration file /etc/freeradius/policy.d/dhcp
including configuration file /etc/freeradius/policy.d/filter.dpkg-dist
including configuration file /etc/freeradius/policy.d/moonshot-targeted-ids
including configuration file /etc/freeradius/policy.d/eap
including files in directory /etc/freeradius/sites-enabled/
including configuration file /etc/freeradius/sites-enabled/default
including configuration file /etc/freeradius/sites-enabled/inner-tunnel
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
        postauth_client_lost = no
        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 {
        nonblock = no
        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
  }
  recv_coa {
  }
 }
 home_server_pool my_auth_failover {
        type = fail-over
        home_server = localhost
 }
 realm example.com {
        auth_pool = my_auth_failover
 }
 realm LOCAL {
 }
radiusd: #### Loading Clients ####
 client localhost {
        ipaddr = 127.0.0.1
        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
  }
 }
 client private-network-1 {
        ipaddr = 142.244.0.0/16
        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 = digest
 # Creating Auth-Type = ldap
 # Creating Auth-Type = eap
 # Creating Auth-Type = PAP
 # Creating Auth-Type = CHAP
 # Creating Auth-Type = MS-CHAP
 # Creating Autz-Type = New-TLS-Connection
radiusd: #### Instantiating modules ####
 modules {
  # Loaded module rlm_exec
  # Loading module "exec" from file /etc/freeradius/mods-enabled/exec
  exec {
        wait = no
        input_pairs = "request"
        shell_escape = yes
        timeout = 10
  }
  # Loaded module rlm_attr_filter
  # Loading module "attr_filter.post-proxy" from file
/etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.post-proxy {
        filename = "/etc/freeradius/mods-config/attr_filter/post-proxy"
        key = "%{Realm}"
        relaxed = no
  }
  # Loading module "attr_filter.pre-proxy" from file
/etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.pre-proxy {
        filename = "/etc/freeradius/mods-config/attr_filter/pre-proxy"
        key = "%{Realm}"
        relaxed = no
  }
  # Loading module "attr_filter.access_reject" from file
/etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.access_reject {
        filename = "/etc/freeradius/mods-config/attr_filter/access_reject"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loading module "attr_filter.access_challenge" from file
/etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.access_challenge {
        filename =
"/etc/freeradius/mods-config/attr_filter/access_challenge"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loading module "attr_filter.accounting_response" from file
/etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.accounting_response {
        filename =
"/etc/freeradius/mods-config/attr_filter/accounting_response"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loading module "attr_filter.coa" from file
/etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.coa {
        filename = "/etc/freeradius/mods-config/attr_filter/coa"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loaded module rlm_dynamic_clients
  # Loading module "dynamic_clients" from file
/etc/freeradius/mods-enabled/dynamic_clients
  # Loaded module rlm_unpack
  # Loading module "unpack" from file /etc/freeradius/mods-enabled/unpack
  # Loaded module rlm_unix
  # Loading module "unix" from file /etc/freeradius/mods-enabled/unix
  unix {
        radwtmp = "/var/log/freeradius/radwtmp"
  }
Creating attribute Unix-Group
  # Loaded module rlm_date
  # Loading module "date" from file /etc/freeradius/mods-enabled/date
  date {
        format = "%b %e %Y %H:%M:%S %Z"
        utc = no
  }
  # Loading module "wispr2date" from file /etc/freeradius/mods-enabled/date
  date wispr2date {
        format = "%Y-%m-%dT%H:%M:%S"
        utc = no
  }
  # Loaded module rlm_chap
  # Loading module "chap" from file /etc/freeradius/mods-enabled/chap
  # Loaded module rlm_detail
  # Loading module "detail" from file /etc/freeradius/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/mods-enabled/ldap
  ldap {
        server = "***"
        port = 389
        identity = "***"
        password = <<< secret >>>
   sasl {
   }
   user {
        scope = "sub"
        access_positive = yes
    sasl {
    }
   }
   group {
        scope = "sub"
        name_attribute = "cn"
        cacheable_name = no
        cacheable_dn = no
        allow_dangling_group_ref = no
   }
   client {
        scope = "sub"
        base_dn = ""
   }
   profile {
   }
   options {
        ldap_debug = 0
        net_timeout = 10
        res_timeout = 20
        srv_timelimit = 20
        idle = 60
        probes = 3
        interval = 30
   }
   tls {
        check_crl = no
        start_tls = no
   }
  }
Creating attribute LDAP-Group
  # Loaded module rlm_pap
  # Loading module "pap" from file /etc/freeradius/mods-enabled/pap
  pap {
        normalise = yes
  }
  # Loaded module rlm_always
  # Loading module "reject" from file /etc/freeradius/mods-enabled/always
  always reject {
        rcode = "reject"
        simulcount = 0
        mpp = no
  }
  # Loading module "fail" from file /etc/freeradius/mods-enabled/always
  always fail {
        rcode = "fail"
        simulcount = 0
        mpp = no
  }
  # Loading module "ok" from file /etc/freeradius/mods-enabled/always
  always ok {
        rcode = "ok"
        simulcount = 0
        mpp = no
  }
  # Loading module "handled" from file /etc/freeradius/mods-enabled/always
  always handled {
        rcode = "handled"
        simulcount = 0
        mpp = no
  }
  # Loading module "invalid" from file /etc/freeradius/mods-enabled/always
  always invalid {
        rcode = "invalid"
        simulcount = 0
        mpp = no
  }
  # Loading module "userlock" from file /etc/freeradius/mods-enabled/always
  always userlock {
        rcode = "userlock"
        simulcount = 0
        mpp = no
  }
  # Loading module "notfound" from file /etc/freeradius/mods-enabled/always
  always notfound {
        rcode = "notfound"
        simulcount = 0
        mpp = no
  }
  # Loading module "noop" from file /etc/freeradius/mods-enabled/always
  always noop {
        rcode = "noop"
        simulcount = 0
        mpp = no
  }
  # Loading module "updated" from file /etc/freeradius/mods-enabled/always
  always updated {
        rcode = "updated"
        simulcount = 0
        mpp = no
  }
  # Loaded module rlm_utf8
  # Loading module "utf8" from file /etc/freeradius/mods-enabled/utf8
  # Loaded module rlm_logintime
  # Loading module "logintime" from file
/etc/freeradius/mods-enabled/logintime
  logintime {
        minimum_timeout = 60
  }
  # Loaded module rlm_radutmp
  # Loading module "radutmp" from file /etc/freeradius/mods-enabled/radutmp
  radutmp {
        filename = "/var/log/freeradius/radutmp"
        username = "%{User-Name}"
        case_sensitive = yes
        check_with_nas = yes
        permissions = 384
        caller_id = yes
  }
  # Loading module "auth_log" from file
/etc/freeradius/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/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/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/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_replicate
  # Loading module "replicate" from file
/etc/freeradius/mods-enabled/replicate
  # Loaded module rlm_soh
  # Loading module "soh" from file /etc/freeradius/mods-enabled/soh
  soh {
        dhcp = yes
  }
  # Loaded module rlm_linelog
  # Loading module "linelog" from file /etc/freeradius/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/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}"
  }
  # Loaded module rlm_passwd
  # Loading module "etc_passwd" from file
/etc/freeradius/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_files
  # Loading module "files" from file /etc/freeradius/mods-enabled/files
  files {
        filename = "/etc/freeradius/mods-config/files/authorize"
        acctusersfile = "/etc/freeradius/mods-config/files/accounting"
        preproxy_usersfile = "/etc/freeradius/mods-config/files/pre-proxy"
  }
  # Loaded module rlm_preprocess
  # Loading module "preprocess" from file
/etc/freeradius/mods-enabled/preprocess
  preprocess {
        huntgroups = "/etc/freeradius/mods-config/preprocess/huntgroups"
        hints = "/etc/freeradius/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_expr
  # Loading module "expr" from file /etc/freeradius/mods-enabled/expr
  expr {
        safe_characters =
"@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_:
/äéöüàâæçèéêëîïôœùûüaÿÄÉÖÜßÀÂÆÇÈÉÊËÎÏÔŒÙÛÜŸ"
  }
  # Loaded module rlm_realm
  # Loading module "IPASS" from file /etc/freeradius/mods-enabled/realm
  realm IPASS {
        format = "prefix"
        delimiter = "/"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "suffix" from file /etc/freeradius/mods-enabled/realm
  realm suffix {
        format = "suffix"
        delimiter = "@"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "bangpath" from file /etc/freeradius/mods-enabled/realm
  realm bangpath {
        format = "prefix"
        delimiter = "!"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "realmpercent" from file
/etc/freeradius/mods-enabled/realm
  realm realmpercent {
        format = "suffix"
        delimiter = "%"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "ntdomain" from file /etc/freeradius/mods-enabled/realm
  realm ntdomain {
        format = "prefix"
        delimiter = "\\"
        ignore_default = no
        ignore_null = no
  }
  # Loaded module rlm_krb5
  # Loading module "krb5" from file /etc/freeradius/mods-enabled/krb5
  krb5 {
        keytab = "/etc/freeradius/keytab"
        service_principal = "radius/sema"
  }
  # Loading module "sradutmp" from file
/etc/freeradius/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_expiration
  # Loading module "expiration" from file
/etc/freeradius/mods-enabled/expiration
  # Loaded module rlm_mschap
  # Loading module "mschap" from file /etc/freeradius/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_totp
  # Loading module "totp" from file /etc/freeradius/mods-enabled/totp
  # Loaded module rlm_digest
  # Loading module "digest" from file /etc/freeradius/mods-enabled/digest
  # Loading module "echo" from file /etc/freeradius/mods-enabled/echo
  exec echo {
        wait = yes
        program = "/bin/echo %{User-Name}"
        input_pairs = "request"
        output_pairs = "reply"
        shell_escape = yes
  }
  # Loading module "ntlm_auth" from file
/etc/freeradius/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_eap
  # Loading module "eap" from file /etc/freeradius/mods-enabled/eap
  eap {
        default_eap_type = "md5"
        timer_expire = 60
        max_eap_type = 52
        ignore_unknown_eap_types = no
        cisco_accounting_username_bug = no
        max_sessions = 16384
  }
  instantiate {
  }
  # Instantiating module "attr_filter.post-proxy" from file
/etc/freeradius/mods-enabled/attr_filter
reading pairlist file /etc/freeradius/mods-config/attr_filter/post-proxy
  # Instantiating module "attr_filter.pre-proxy" from file
/etc/freeradius/mods-enabled/attr_filter
reading pairlist file /etc/freeradius/mods-config/attr_filter/pre-proxy
  # Instantiating module "attr_filter.access_reject" from file
/etc/freeradius/mods-enabled/attr_filter
reading pairlist file /etc/freeradius/mods-config/attr_filter/access_reject
  # Instantiating module "attr_filter.access_challenge" from file
/etc/freeradius/mods-enabled/attr_filter
reading pairlist file
/etc/freeradius/mods-config/attr_filter/access_challenge
  # Instantiating module "attr_filter.accounting_response" from file
/etc/freeradius/mods-enabled/attr_filter
reading pairlist file
/etc/freeradius/mods-config/attr_filter/accounting_response
  # Instantiating module "attr_filter.coa" from file
/etc/freeradius/mods-enabled/attr_filter
reading pairlist file /etc/freeradius/mods-config/attr_filter/coa
  # Instantiating module "detail" from file
/etc/freeradius/mods-enabled/detail
  # Instantiating module "ldap" from file /etc/freeradius/mods-enabled/ldap
rlm_ldap: libldap vendor: OpenLDAP, version: 20516
rlm_ldap (ldap): Couldn't find configuration for accounting, will return
NOOP for calls from this section
rlm_ldap (ldap): Couldn't find configuration for post-auth, will return
NOOP for calls from this section
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!! libldap is using GnuTLS, while FreeRADIUS is using OpenSSL
!! There may be random issues with TLS connections due to this conflict.
!! The server may also crash.
!! See https://wiki.freeradius.org/modules/Rlm_ldap for more information.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
rlm_ldap (ldap): Initialising connection pool
   pool {
        start = 5
        min = 5
        max = 10
        spare = 3
        uses = 0
        lifetime = 0
        cleanup_interval = 30
        idle_timeout = 60
        retry_delay = 1
        max_retries = 5
        spread = no
   }
rlm_ldap (ldap): Opening additional connection (0), 1 of 10 pending slots
used
rlm_ldap (ldap): Connecting to ldaps://****
rlm_ldap (ldap): Bind with cn=wireless,ou=ldapaccess,dc=ualberta,dc=ca to
ldaps://**** failed: Can't contact LDAP server
rlm_ldap (ldap): Opening connection failed (0)
rlm_ldap (ldap): Removing connection pool
/etc/freeradius/mods-enabled/ldap[2]: Instantiation failed for module "ldap"

I have tried ldapsearch and it works fine and I'm using Ubuntu 22.04.3. Any
help is highly appreciated. Thanks.

Regards,
Deepansha Gaur

Deepansha Gaur

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