SASL AuthN to LDAP
i am trying to use a Kerberos keytab file to authenticate to LDAP. the keytab file is the same one used to authenticate users against the Kerberos database. the principal in the keytab has been mapped to an object in LDAP, for access to be granted. i dont seem to be getting the configs correct for the LDAP binds to work. can you shed light on what i am missing? i am setting KRB5_CLIENT_KTNAME = '/etc/raddb/radius.keytab' in the sasl {} stanzas in mods-available/ldap, which is linked to mods-enabled/. the radiusd -X output below indicates that anonymous binds are being attempted. this seems to indicate the keytab is not being picked up and the identity is not being found. i can run a 'kinit -kt /etc/raddb/radius.keytab' and get a TGT back. i can also run 'ldapwhoami' with that TGT and get the mapped LDAP identity back. am i going about setting the KRB5_CLIENT_KTNAME wrong? freeradius version 3.0.10 (packaged for fedora 24) Copyright (C) 1999-2015 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/raddb/dictionary including configuration file /etc/raddb/radiusd.conf including configuration file /etc/raddb/clients.conf including files in directory /etc/raddb/mods-enabled/ including configuration file /etc/raddb/mods-enabled/always including configuration file /etc/raddb/mods-enabled/attr_filter including configuration file /etc/raddb/mods-enabled/cache_eap including configuration file /etc/raddb/mods-enabled/chap including configuration file /etc/raddb/mods-enabled/detail including configuration file /etc/raddb/mods-enabled/detail.log including configuration file /etc/raddb/mods-enabled/dhcp including configuration file /etc/raddb/mods-enabled/digest including configuration file /etc/raddb/mods-enabled/dynamic_clients including configuration file /etc/raddb/mods-enabled/eap including configuration file /etc/raddb/mods-enabled/echo including configuration file /etc/raddb/mods-enabled/exec including configuration file /etc/raddb/mods-enabled/expiration including configuration file /etc/raddb/mods-enabled/expr including configuration file /etc/raddb/mods-enabled/files including configuration file /etc/raddb/mods-enabled/linelog including configuration file /etc/raddb/mods-enabled/logintime including configuration file /etc/raddb/mods-enabled/mschap including configuration file /etc/raddb/mods-enabled/ntlm_auth including configuration file /etc/raddb/mods-enabled/pap including configuration file /etc/raddb/mods-enabled/passwd including configuration file /etc/raddb/mods-enabled/preprocess including configuration file /etc/raddb/mods-enabled/radutmp including configuration file /etc/raddb/mods-enabled/realm including configuration file /etc/raddb/mods-enabled/replicate including configuration file /etc/raddb/mods-enabled/soh including configuration file /etc/raddb/mods-enabled/sradutmp including configuration file /etc/raddb/mods-enabled/unix including configuration file /etc/raddb/mods-enabled/unpack including configuration file /etc/raddb/mods-enabled/utf8 including configuration file /etc/raddb/mods-enabled/krb5 including configuration file /etc/raddb/mods-enabled/ldap including configuration file /etc/raddb/mods-enabled/sql including configuration file /etc/raddb/mods-config/sql/main/mysql/queries.conf including files in directory /etc/raddb/policy.d/ including configuration file /etc/raddb/policy.d/accounting including configuration file /etc/raddb/policy.d/control including configuration file /etc/raddb/policy.d/cui including configuration file /etc/raddb/policy.d/debug including configuration file /etc/raddb/policy.d/dhcp including configuration file /etc/raddb/policy.d/eap including configuration file /etc/raddb/policy.d/filter including configuration file /etc/raddb/policy.d/operator-name including configuration file /etc/raddb/policy.d/canonicalization.orig including configuration file /etc/raddb/policy.d/canonicalization including files in directory /etc/raddb/sites-enabled/ including configuration file /etc/raddb/sites-enabled/default including configuration file /etc/raddb/sites-enabled/inner-tunnel main { security { user = "radiusd" group = "radiusd" allow_core_dumps = no } name = "radiusd" prefix = "/usr" localstatedir = "/var" logdir = "/var/log/radius" run_dir = "/var/run/radiusd" } main { name = "radiusd" prefix = "/usr" localstatedir = "/var" sbindir = "/usr/sbin" logdir = "/var/log/radius" run_dir = "/var/run/radiusd" libdir = "/usr/lib64/freeradius" radacctdir = "/var/log/radius/radacct" hostname_lookups = no max_request_time = 30 cleanup_delay = 5 max_requests = 1024 pidfile = "/var/run/radiusd/radiusd.pid" checkrad = "/usr/sbin/checkrad" debug_level = 0 proxy_requests = no 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 #### 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 } } Debugger not attached # Creating Auth-Type = digest # Creating Auth-Type = LDAP radiusd: #### Instantiating modules #### # Loaded module rlm_always # Loading module "reject" from file /etc/raddb/mods-enabled/always always reject { rcode = "reject" simulcount = 0 mpp = no } # Loading module "fail" from file /etc/raddb/mods-enabled/always always fail { rcode = "fail" simulcount = 0 mpp = no } # Loading module "ok" from file /etc/raddb/mods-enabled/always always ok { rcode = "ok" simulcount = 0 mpp = no } # Loading module "handled" from file /etc/raddb/mods-enabled/always always handled { rcode = "handled" simulcount = 0 mpp = no } # Loading module "invalid" from file /etc/raddb/mods-enabled/always always invalid { rcode = "invalid" simulcount = 0 mpp = no } # Loading module "userlock" from file /etc/raddb/mods-enabled/always always userlock { rcode = "userlock" simulcount = 0 mpp = no } # Loading module "notfound" from file /etc/raddb/mods-enabled/always always notfound { rcode = "notfound" simulcount = 0 mpp = no } # Loading module "noop" from file /etc/raddb/mods-enabled/always always noop { rcode = "noop" simulcount = 0 mpp = no } # Loading module "updated" from file /etc/raddb/mods-enabled/always always updated { rcode = "updated" simulcount = 0 mpp = no } # Loaded module rlm_attr_filter # Loading module "attr_filter.post-proxy" from file /etc/raddb/mods-enabled/attr_filter attr_filter attr_filter.post-proxy { filename = "/etc/raddb/mods-config/attr_filter/post-proxy" key = "%{Realm}" relaxed = no } # Loading module "attr_filter.pre-proxy" from file /etc/raddb/mods-enabled/attr_filter attr_filter attr_filter.pre-proxy { filename = "/etc/raddb/mods-config/attr_filter/pre-proxy" key = "%{Realm}" relaxed = no } # Loading module "attr_filter.access_reject" from file /etc/raddb/mods-enabled/attr_filter attr_filter attr_filter.access_reject { filename = "/etc/raddb/mods-config/attr_filter/access_reject" key = "%{User-Name}" relaxed = no } # Loading module "attr_filter.access_challenge" from file /etc/raddb/mods-enabled/attr_filter attr_filter attr_filter.access_challenge { filename = "/etc/raddb/mods-config/attr_filter/access_challenge" key = "%{User-Name}" relaxed = no } # Loading module "attr_filter.accounting_response" from file /etc/raddb/mods-enabled/attr_filter attr_filter attr_filter.accounting_response { filename = "/etc/raddb/mods-config/attr_filter/accounting_response" key = "%{User-Name}" relaxed = no } # Loaded module rlm_cache # Loading module "cache_eap" from file /etc/raddb/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_chap # Loading module "chap" from file /etc/raddb/mods-enabled/chap # Loaded module rlm_detail # Loading module "detail" from file /etc/raddb/mods-enabled/detail detail { filename = "/var/log/radius/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 } # Loading module "auth_log" from file /etc/raddb/mods-enabled/detail.log detail auth_log { filename = "/var/log/radius/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/raddb/mods-enabled/detail.log detail reply_log { filename = "/var/log/radius/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/raddb/mods-enabled/detail.log detail pre_proxy_log { filename = "/var/log/radius/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/raddb/mods-enabled/detail.log detail post_proxy_log { filename = "/var/log/radius/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_dhcp # Loading module "dhcp" from file /etc/raddb/mods-enabled/dhcp # Loaded module rlm_digest # Loading module "digest" from file /etc/raddb/mods-enabled/digest # Loaded module rlm_dynamic_clients # Loading module "dynamic_clients" from file /etc/raddb/mods-enabled/dynamic_clients # Loaded module rlm_eap # Loading module "eap" from file /etc/raddb/mods-enabled/eap eap { default_eap_type = "md5" timer_expire = 60 ignore_unknown_eap_types = no cisco_accounting_username_bug = no max_sessions = 1024 } # Loaded module rlm_exec # Loading module "echo" from file /etc/raddb/mods-enabled/echo exec echo { wait = yes program = "/bin/echo %{User-Name}" input_pairs = "request" output_pairs = "reply" shell_escape = yes } # Loading module "exec" from file /etc/raddb/mods-enabled/exec exec { wait = no input_pairs = "request" shell_escape = yes timeout = 10 } # Loaded module rlm_expiration # Loading module "expiration" from file /etc/raddb/mods-enabled/expiration # Loaded module rlm_expr # Loading module "expr" from file /etc/raddb/mods-enabled/expr expr { safe_characters = "@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_: /äéöüàâæçèéêëîïôœùûüaÿÄÉÖÜßÀÂÆÇÈÉÊËÎÏÔŒÙÛÜŸ" } # Loaded module rlm_files # Loading module "files" from file /etc/raddb/mods-enabled/files files { filename = "/etc/raddb/mods-config/files/authorize" acctusersfile = "/etc/raddb/mods-config/files/accounting" preproxy_usersfile = "/etc/raddb/mods-config/files/pre-proxy" } # Loaded module rlm_linelog # Loading module "linelog" from file /etc/raddb/mods-enabled/linelog linelog { filename = "/var/log/radius/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/raddb/mods-enabled/linelog linelog log_accounting { filename = "/var/log/radius/linelog-accounting" escape_filenames = no syslog_severity = "info" permissions = 384 format = "" reference = "Accounting-Request.%{%{Acct-Status-Type}:-unknown}" } # Loaded module rlm_logintime # Loading module "logintime" from file /etc/raddb/mods-enabled/logintime logintime { minimum_timeout = 60 } # Loaded module rlm_mschap # Loading module "mschap" from file /etc/raddb/mods-enabled/mschap mschap { use_mppe = no require_encryption = yes require_strong = yes with_ntdomain_hack = yes passchange { } allow_retry = yes } # Loading module "ntlm_auth" from file /etc/raddb/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_pap # Loading module "pap" from file /etc/raddb/mods-enabled/pap pap { normalise = yes } # Loaded module rlm_passwd # Loading module "etc_passwd" from file /etc/raddb/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_preprocess # Loading module "preprocess" from file /etc/raddb/mods-enabled/preprocess preprocess { huntgroups = "/etc/raddb/mods-config/preprocess/huntgroups" hints = "/etc/raddb/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_radutmp # Loading module "radutmp" from file /etc/raddb/mods-enabled/radutmp radutmp { filename = "/var/log/radius/radutmp" username = "%{User-Name}" case_sensitive = yes check_with_nas = yes permissions = 384 caller_id = yes } # Loaded module rlm_realm # Loading module "IPASS" from file /etc/raddb/mods-enabled/realm realm IPASS { format = "prefix" delimiter = "/" ignore_default = no ignore_null = no } # Loading module "suffix" from file /etc/raddb/mods-enabled/realm realm suffix { format = "suffix" delimiter = "@" ignore_default = no ignore_null = no } # Loading module "realmpercent" from file /etc/raddb/mods-enabled/realm realm realmpercent { format = "suffix" delimiter = "%" ignore_default = no ignore_null = no } # Loading module "ntdomain" from file /etc/raddb/mods-enabled/realm realm ntdomain { format = "prefix" delimiter = "\" ignore_default = no ignore_null = no } # Loaded module rlm_replicate # Loading module "replicate" from file /etc/raddb/mods-enabled/replicate # Loaded module rlm_soh # Loading module "soh" from file /etc/raddb/mods-enabled/soh soh { dhcp = yes } # Loading module "sradutmp" from file /etc/raddb/mods-enabled/sradutmp radutmp sradutmp { filename = "/var/log/radius/sradutmp" username = "%{User-Name}" case_sensitive = yes check_with_nas = yes permissions = 420 caller_id = no } # Loaded module rlm_unix # Loading module "unix" from file /etc/raddb/mods-enabled/unix unix { radwtmp = "/var/log/radius/radwtmp" } Creating attribute Unix-Group # Loaded module rlm_unpack # Loading module "unpack" from file /etc/raddb/mods-enabled/unpack # Loaded module rlm_utf8 # Loading module "utf8" from file /etc/raddb/mods-enabled/utf8 # Loaded module rlm_krb5 # Loading module "krb5" from file /etc/raddb/mods-enabled/krb5 krb5 { keytab = "/etc/raddb/radius.keytab" service_principal = "radius/server1.bpk2.com" } # Loaded module rlm_ldap # Loading module "ldap" from file /etc/raddb/mods-enabled/ldap ldap { server = "server1.bpk2.com" sasl { mech = "GSSAPI" realm = "BPK2.COM" } read_clients = yes 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 } client { filter = "(objectClass=radiusClient)" scope = "sub" base_dn = "dc=bpk2,dc=com" } 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_sql # Loading module "sql" from file /etc/raddb/mods-enabled/sql sql { driver = "rlm_sql_mysql" server = "database.bpk2.com" port = 3306 login = "radius" password = <<< secret >>> radius_db = "radius" read_groups = yes read_profiles = yes read_clients = no delete_stale_sessions = yes sql_user_name = "%{User-Name}" default_user_profile = "" client_query = "SELECT id, nasname, shortname, type, secret, server FROM nas" authorize_check_query = "SELECT id, username, attribute, value, op FROM radcheck WHERE username = '%{SQL-User-Name}' ORDER BY id" authorize_reply_query = "SELECT id, username, attribute, value, op FROM radreply WHERE username = '%{SQL-User-Name}' ORDER BY id" authorize_group_check_query = "SELECT id, groupname, attribute, Value, op FROM radgroupcheck WHERE groupname = '%{SQL-Group}' ORDER BY id" authorize_group_reply_query = "SELECT id, groupname, attribute, value, op FROM radgroupreply WHERE groupname = '%{SQL-Group}' ORDER BY id" group_membership_query = "SELECT groupname FROM radusergroup WHERE username = '%{SQL-User-Name}' ORDER BY priority" simul_verify_query = "SELECT radacctid, acctsessionid, username, nasipaddress, nasportid, framedipaddress, callingstationid, framedprotocol FROM radacct WHERE username = '%{SQL-User-Name}' AND acctstoptime IS NULL" safe_characters = "@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_: /" accounting { reference = "%{tolower:type.%{Acct-Status-Type}.query}" type { accounting-on { query = "UPDATE radacct SET acctstoptime = FROM_UNIXTIME(%{integer:Event-Timestamp}), acctsessiontime = '%{integer:Event-Timestamp}' - UNIX_TIMESTAMP(acctstarttime), acctterminatecause = '%{%{Acct-Terminate-Cause}:-NAS-Reboot}' WHERE acctstoptime IS NULL AND nasipaddress = '%{NAS-IP-Address}' AND acctstarttime <= FROM_UNIXTIME(%{integer:Event-Timestamp})" } accounting-off { query = "UPDATE radacct SET acctstoptime = FROM_UNIXTIME(%{integer:Event-Timestamp}), acctsessiontime = '%{integer:Event-Timestamp}' - UNIX_TIMESTAMP(acctstarttime), acctterminatecause = '%{%{Acct-Terminate-Cause}:-NAS-Reboot}' WHERE acctstoptime IS NULL AND nasipaddress = '%{NAS-IP-Address}' AND acctstarttime <= FROM_UNIXTIME(%{integer:Event-Timestamp})" } start { query = "INSERT INTO radacct (acctsessionid, acctuniqueid, username, realm, nasipaddress, nasportid, nasporttype, acctstarttime, acctupdatetime, acctstoptime, acctsessiontime, acctauthentic, connectinfo_start, connectinfo_stop, acctinputoctets, acctoutputoctets, calledstationid, callingstationid, acctterminatecause, servicetype, framedprotocol, framedipaddress) VALUES ('%{Acct-Session-Id}', '%{Acct-Unique-Session-Id}', '%{SQL-User-Name}', '%{Realm}', '%{NAS-IP-Address}', '%{%{NAS-Port-ID}:-%{NAS-Port}}', '%{NAS-Port-Type}', FROM_UNIXTIME(%{integer:Event-Timestamp}), FROM_UNIXTIME(%{integer:Event-Timestamp}), NULL, '0', '%{Acct-Authentic}', '%{Connect-Info}', '', '0', '0', '%{Called-Station-Id}', '%{Calling-Station-Id}', '', '%{Service-Type}', '%{Framed-Protocol}', '%{Framed-IP-Address}')" } interim-update { query = "UPDATE radacct SET acctupdatetime = (@acctupdatetime_old:=acctupdatetime), acctupdatetime = FROM_UNIXTIME(%{integer:Event-Timestamp}), acctinterval = %{integer:Event-Timestamp} - UNIX_TIMESTAMP(@acctupdatetime_old), framedipaddress = '%{Framed-IP-Address}', acctsessiontime = %{%{Acct-Session-Time}:-NULL}, acctinputoctets = '%{%{Acct-Input-Gigawords}:-0}' << 32 | '%{%{Acct-Input-Octets}:-0}', acctoutputoctets = '%{%{Acct-Output-Gigawords}:-0}' << 32 | '%{%{Acct-Output-Octets}:-0}' WHERE AcctUniqueId = '%{Acct-Unique-Session-Id}'" } stop { query = "UPDATE radacct SET acctstoptime = FROM_UNIXTIME(%{integer:Event-Timestamp}), acctsessiontime = %{%{Acct-Session-Time}:-NULL}, acctinputoctets = '%{%{Acct-Input-Gigawords}:-0}' << 32 | '%{%{Acct-Input-Octets}:-0}', acctoutputoctets = '%{%{Acct-Output-Gigawords}:-0}' << 32 | '%{%{Acct-Output-Octets}:-0}', acctterminatecause = '%{Acct-Terminate-Cause}', connectinfo_stop = '%{Connect-Info}' WHERE AcctUniqueId = '%{Acct-Unique-Session-Id}'" } } } post-auth { reference = ".query" query = "INSERT INTO radpostauth (username, pass, reply, authdate) VALUES ( '%{SQL-User-Name}', '%{%{User-Password}:-%{Chap-Password}}', '%{reply:Packet-Type}', '%S')" } } rlm_sql (sql): Driver rlm_sql_mysql (module rlm_sql_mysql) loaded and linked Creating attribute SQL-Group instantiate { } modules { # Instantiating module "reject" from file /etc/raddb/mods-enabled/always # Instantiating module "fail" from file /etc/raddb/mods-enabled/always # Instantiating module "ok" from file /etc/raddb/mods-enabled/always # Instantiating module "handled" from file /etc/raddb/mods-enabled/always # Instantiating module "invalid" from file /etc/raddb/mods-enabled/always # Instantiating module "userlock" from file /etc/raddb/mods-enabled/always # Instantiating module "notfound" from file /etc/raddb/mods-enabled/always # Instantiating module "noop" from file /etc/raddb/mods-enabled/always # Instantiating module "updated" from file /etc/raddb/mods-enabled/always # Instantiating module "attr_filter.post-proxy" from file /etc/raddb/mods-enabled/attr_filter reading pairlist file /etc/raddb/mods-config/attr_filter/post-proxy # Instantiating module "attr_filter.pre-proxy" from file /etc/raddb/mods-enabled/attr_filter reading pairlist file /etc/raddb/mods-config/attr_filter/pre-proxy # Instantiating module "attr_filter.access_reject" from file /etc/raddb/mods-enabled/attr_filter reading pairlist file /etc/raddb/mods-config/attr_filter/access_reject [/etc/raddb/mods-config/attr_filter/access_reject]:11 Check item "FreeRADIUS-Response-Delay" found in filter list for realm "DEFAULT". [/etc/raddb/mods-config/attr_filter/access_reject]:11 Check item "FreeRADIUS-Response-Delay-USec" found in filter list for realm "DEFAULT". # Instantiating module "attr_filter.access_challenge" from file /etc/raddb/mods-enabled/attr_filter reading pairlist file /etc/raddb/mods-config/attr_filter/access_challenge # Instantiating module "attr_filter.accounting_response" from file /etc/raddb/mods-enabled/attr_filter reading pairlist file /etc/raddb/mods-config/attr_filter/accounting_response # Instantiating module "cache_eap" from file /etc/raddb/mods-enabled/cache_eap rlm_cache (cache_eap): Driver rlm_cache_rbtree (module rlm_cache_rbtree) loaded and linked # Instantiating module "detail" from file /etc/raddb/mods-enabled/detail # Instantiating module "auth_log" from file /etc/raddb/mods-enabled/detail.log rlm_detail (auth_log): 'User-Password' suppressed, will not appear in detail output # Instantiating module "reply_log" from file /etc/raddb/mods-enabled/detail.log # Instantiating module "pre_proxy_log" from file /etc/raddb/mods-enabled/detail.log # Instantiating module "post_proxy_log" from file /etc/raddb/mods-enabled/detail.log # Instantiating module "eap" from file /etc/raddb/mods-enabled/eap # Linked to sub-module rlm_eap_md5 # Linked to sub-module rlm_eap_leap # Linked to sub-module rlm_eap_gtc gtc { challenge = "Password: " auth_type = "PAP" } # Linked to sub-module rlm_eap_tls tls { tls = "tls-common" } tls-config tls-common { rsa_key_exchange = no dh_key_exchange = yes rsa_key_length = 512 dh_key_length = 512 verify_depth = 0 ca_path = "/etc/raddb/certs" pem_file_type = yes private_key_file = "/etc/raddb/certs/server.pem" certificate_file = "/etc/raddb/certs/server.pem" ca_file = "/etc/raddb/certs/ca.pem" private_key_password = <<< secret >>> dh_file = "/etc/raddb/certs/dh" fragment_size = 1024 include_length = yes check_crl = no check_all_crl = no cipher_list = "DEFAULT" ecdh_curve = "prime256v1" cache { enable = yes lifetime = 24 max_entries = 255 } verify { } ocsp { enable = no override_cert_url = yes url = "http://127.0.0.1/ocsp/" use_nonce = yes timeout = 0 softfail = no } } # Linked to sub-module rlm_eap_ttls ttls { tls = "tls-common" default_eap_type = "md5" copy_request_to_tunnel = yes use_tunneled_reply = yes virtual_server = "inner-tunnel" include_length = yes require_client_cert = no } tls: Using cached TLS configuration from previous invocation # Linked to sub-module rlm_eap_peap peap { tls = "tls-common" default_eap_type = "mschapv2" copy_request_to_tunnel = no use_tunneled_reply = no proxy_tunneled_request_as_eap = yes virtual_server = "inner-tunnel" soh = no require_client_cert = no } tls: Using cached TLS configuration from previous invocation # Linked to sub-module rlm_eap_mschapv2 mschapv2 { with_ntdomain_hack = no send_error = no } # Instantiating module "expiration" from file /etc/raddb/mods-enabled/expiration # Instantiating module "files" from file /etc/raddb/mods-enabled/files reading pairlist file /etc/raddb/mods-config/files/authorize reading pairlist file /etc/raddb/mods-config/files/accounting reading pairlist file /etc/raddb/mods-config/files/pre-proxy # Instantiating module "linelog" from file /etc/raddb/mods-enabled/linelog # Instantiating module "log_accounting" from file /etc/raddb/mods-enabled/linelog # Instantiating module "logintime" from file /etc/raddb/mods-enabled/logintime # Instantiating module "mschap" from file /etc/raddb/mods-enabled/mschap rlm_mschap (mschap): using internal authentication # Instantiating module "pap" from file /etc/raddb/mods-enabled/pap # Instantiating module "etc_passwd" from file /etc/raddb/mods-enabled/passwd rlm_passwd: nfields: 3 keyfield 0(User-Name) listable: no # Instantiating module "preprocess" from file /etc/raddb/mods-enabled/preprocess reading pairlist file /etc/raddb/mods-config/preprocess/huntgroups reading pairlist file /etc/raddb/mods-config/preprocess/hints # Instantiating module "IPASS" from file /etc/raddb/mods-enabled/realm # Instantiating module "suffix" from file /etc/raddb/mods-enabled/realm # Instantiating module "realmpercent" from file /etc/raddb/mods-enabled/realm # Instantiating module "ntdomain" from file /etc/raddb/mods-enabled/realm # Instantiating module "krb5" from file /etc/raddb/mods-enabled/krb5 Using MIT Kerberos library rlm_krb5 (krb5): Using service principal "radius/server1.bpk2.com@" rlm_krb5 (krb5): Using keytab "FILE:/etc/raddb/radius.keytab" rlm_krb5 (krb5): Initialising connection pool pool { start = 10 min = 4 max = 10 spare = 3 uses = 0 lifetime = 0 cleanup_interval = 30 idle_timeout = 60 retry_delay = 1 spread = no } rlm_krb5 (krb5): Opening additional connection (0), 1 of 10 pending slots used rlm_krb5 (krb5): Opening additional connection (1), 1 of 9 pending slots used rlm_krb5 (krb5): Opening additional connection (2), 1 of 8 pending slots used rlm_krb5 (krb5): Opening additional connection (3), 1 of 7 pending slots used rlm_krb5 (krb5): Opening additional connection (4), 1 of 6 pending slots used rlm_krb5 (krb5): Opening additional connection (5), 1 of 5 pending slots used rlm_krb5 (krb5): Opening additional connection (6), 1 of 4 pending slots used rlm_krb5 (krb5): Opening additional connection (7), 1 of 3 pending slots used rlm_krb5 (krb5): Opening additional connection (8), 1 of 2 pending slots used rlm_krb5 (krb5): Opening additional connection (9), 1 of 1 pending slots used # Instantiating module "ldap" from file /etc/raddb/mods-enabled/ldap rlm_ldap: libldap vendor: OpenLDAP, version: 20444 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 ldap://server1.bpk2.com:389 rlm_ldap (ldap): Starting SASL mech(s): GSSAPI SASL/GSSAPI authentication started rlm_ldap (ldap): Bind with (anonymous) to ldap://server1.bpk2.com:389 failed: Local error rlm_ldap (ldap): Opening connection failed (0) rlm_ldap (ldap): Removing connection pool /etc/raddb/mods-enabled/ldap[8]: Instantiation failed for module "ldap"
On 18/10/2016 15:24, Brendan Kearney wrote:
i am setting
KRB5_CLIENT_KTNAME = '/etc/raddb/radius.keytab'
in the sasl {} stanzas in mods-available/ldap, As it says in the sample config:
# Unfortunately the only way to control Keberos [sic] here is through # environmental variables, as cyrus-sasl provides no API to # set the krb5 config directly. So the way I got it to work was to set the environment variable in /etc/default/freeradius [for Ubuntu, when running as a service], or directly when running from the command line: KRB5_CCNAME=... freeradius -X If it's possible to set environment variables *within* freeradius's configuration, I don't know how to do that. Regards, Brian.
On 10/18/2016 10:55 AM, Brian Candler wrote:
On 18/10/2016 15:24, Brendan Kearney wrote:
i am setting
KRB5_CLIENT_KTNAME = '/etc/raddb/radius.keytab'
in the sasl {} stanzas in mods-available/ldap, As it says in the sample config:
# Unfortunately the only way to control Keberos [sic] here is through # environmental variables, as cyrus-sasl provides no API to # set the krb5 config directly.
So the way I got it to work was to set the environment variable in /etc/default/freeradius [for Ubuntu, when running as a service], or directly when running from the command line:
KRB5_CCNAME=... freeradius -X
If it's possible to set environment variables *within* freeradius's configuration, I don't know how to do that.
Regards,
Brian.
thanks, i figured it was going to be something along those lines. with systemd based OS's, you can created a directory, such as /etc/systemd/system/radiusd.d/ and put a .conf file in there to override or augment the service, but that does nothing for command line. running radiusd -X will never pick up the systemd "helper" config. is there a way have that "helper" sourced when running radiusd -X?
On 18/10/2016 16:02, Brendan Kearney wrote:
thanks, i figured it was going to be something along those lines. with systemd based OS's, you can created a directory, such as /etc/systemd/system/radiusd.d/ and put a .conf file in there to override or augment the service, but that does nothing for command line. Ubuntu 16.04 handles it like this:
# cat /lib/systemd/system/freeradius.service [Unit] Description=FreeRADIUS multi-protocol policy server After=syslog.target network.target Documentation=man:radiusd(8) man:radiusd.conf(5) http://wiki.freeradius.org/ http://networkradius.com/doc/ [Service] Type=forking PIDFile=/run/freeradius/freeradius.pid EnvironmentFile=-/etc/default/freeradius ExecStartPre=/usr/sbin/freeradius $FREERADIUS_OPTIONS -Cxm -lstdout ExecStart=/usr/sbin/freeradius $FREERADIUS_OPTIONS Restart=on-failure RestartSec=5 [Install] WantedBy=multi-user.target ... then you can set FREERADIUS_OPTIONS in /etc/default/freeradius, but you can also set other environment variables including KRB5_*
running radiusd -X will never pick up the systemd "helper" config. is there a way have that "helper" sourced when running radiusd -X?
If you're running it from the shell, then systemd (fortunately) knows nothing about it. It's the one part of system operation that systemd doesn't try to mess with :-) You can always write a wrapper script which sources /etc/default/freeradius. B.
On 10/18/2016 11:47 AM, Brian Candler wrote:
On 18/10/2016 16:02, Brendan Kearney wrote:
thanks, i figured it was going to be something along those lines. with systemd based OS's, you can created a directory, such as /etc/systemd/system/radiusd.d/ and put a .conf file in there to override or augment the service, but that does nothing for command line. Ubuntu 16.04 handles it like this:
# cat /lib/systemd/system/freeradius.service [Unit] Description=FreeRADIUS multi-protocol policy server After=syslog.target network.target Documentation=man:radiusd(8) man:radiusd.conf(5) http://wiki.freeradius.org/ http://networkradius.com/doc/
[Service] Type=forking PIDFile=/run/freeradius/freeradius.pid EnvironmentFile=-/etc/default/freeradius ExecStartPre=/usr/sbin/freeradius $FREERADIUS_OPTIONS -Cxm -lstdout ExecStart=/usr/sbin/freeradius $FREERADIUS_OPTIONS Restart=on-failure RestartSec=5
[Install] WantedBy=multi-user.target
... then you can set FREERADIUS_OPTIONS in /etc/default/freeradius, but you can also set other environment variables including KRB5_*
running radiusd -X will never pick up the systemd "helper" config. is there a way have that "helper" sourced when running radiusd -X?
If you're running it from the shell, then systemd (fortunately) knows nothing about it. It's the one part of system operation that systemd doesn't try to mess with :-)
You can always write a wrapper script which sources /etc/default/freeradius.
B.
yea, fedora seems to have done away with the file equivalent to your EnvironmentFile (in /etc/sysconfig/). i created /etc/systemd/system/radiusd.service.d/ and added a .conf file there. i believe this is a systemd.unit file or config, and allows me to manipulate specific settings without editing the packaged service files that will be overwritten by newer packages. as for cli, i just created a script, that sets the env var, runs radiusd -X and then unsets the env var when i ctrl+c out of radiusd -X. now onto why i cant auth against Kerberos... thanks for the info brendan
On 18/10/2016 18:52, Brendan Kearney wrote:
as for cli, i just created a script, that sets the env var, runs radiusd -X and then unsets the env var when i ctrl+c out of radiusd -X.
The unset is not needed. Each process has its own copy of the environment - it cannot possibly modify its parent's environment. The only case this is not true is if you use "source <scriptname>" or ". <scriptname>" to read the script directly into your running shell. If you include the shebang line (e.g. #!/bin/sh), make it executable, and execute it directly, then it's a separate process.
On Tue, Oct 18, 2016 at 01:52:30PM -0400, Brendan Kearney wrote:
yea, fedora seems to have done away with the file equivalent to your EnvironmentFile (in /etc/sysconfig/). i created /etc/systemd/system/radiusd.service.d/ and added a .conf file there. i believe this is a systemd.unit file or config, and allows me to manipulate specific settings without editing the packaged service files that will be overwritten by newer packages.
You can override parts of packaged systemd unit files by creating a small override.conf file with the local changes. See e.g. http://askubuntu.com/questions/659267/how-do-i-override-or-configure-systemd... But that is really off-topic for this list. Matthew -- Matthew Newton, Ph.D. <mcn4@leicester.ac.uk> Systems Specialist, Infrastructure Services, I.T. Services, University of Leicester, Leicester LE1 7RH, United Kingdom For IT help contact helpdesk extn. 2253, <ithelp@le.ac.uk>
On 18/10/2016 16:02, Brendan Kearney wrote:
with systemd based OS's, you can created a directory, such as /etc/systemd/system/radiusd.d/ and put a .conf file in there to override or augment the service
Actually for completeness: all you need to do is type systemctl edit radiusd which will throw you into an editor. There you can set e.g. [service] Environment=KRB5_CLIENT_KTNAME=/etc/radiusd.keytab and save. Under the hood, it creates /etc/systemd/system/radiusd.service.d/override.conf I presume you could set radiusd command line options there too, by overriding ExecStart. Regards, Brian.
On 18/10/2016 15:55, Brian Candler wrote:
So the way I got it to work was to set the environment variable in /etc/default/freeradius [for Ubuntu, when running as a service], or directly when running from the command line:
KRB5CCNAME=... freeradius -X
As an aside, I wonder if someone can answer this question. Can freeradius itself fetch and refresh its own kerberos tickets using a keytab? Or does this have to be done externally? The way I have it working right now is to use an hourly crontab to fetch tickets. ===> /etc/cron.hourly/freeradius-krb5 <=== #!/bin/sh kinit -t /root/radiusd.keytab -k radius/radius1-1.int.example.com -c /var/tmp/radius.krb5 chown freerad:freerad /var/tmp/radius.krb5 Then I start freeradius pointing to the ticket *cache* file: # KRB5CCNAME=/var/tmp/radius.krb5 freeradius -X And this works. However, the documentation for the ldap module says: # At a minimum you probably want to set KRB5_CLIENT_KTNAME. This implies that maybe I just have to refer to the keytab, and freeradius/sasl will fetch its own tickets as required. But I've not been able to get this to work: # KRB5_CLIENT_KTNAME=/root/radiusd.keytab freeradius -X ... rlm_ldap (ldap): Opening additional connection (0), 1 of 32 pending slots used rlm_ldap (ldap): Connecting to ldap://ldap-1.ipa.example.com:389 rlm_ldap (ldap): Starting SASL mech(s): GSSAPI SASL/GSSAPI authentication started rlm_ldap (ldap): Bind with (anonymous) to ldap://ldap-1.ipa.example.com:389 failed: Local error rlm_ldap (ldap): Opening connection failed (0) rlm_ldap (ldap): Removing connection pool /etc/freeradius/mods-enabled/ldap[1]: Instantiation failed for module "ldap" Same result with KRB5_KTNAME. It seems that at very least I would need to specify (somewhere) which principal name to use (i.e. the '-k' argument to kinit in my cronjob). But I can't find an environment variable for this: http://web.mit.edu/kerberos/krb5-devel/doc/admin/env_variables.html Nor any setting in the rlm_ldap config. I see that the sasl.c code can use this->identity (and also this->password), but I imagine these are for simple binds, and the config says *not* to use them for Kerberos: # Administrator account for searching and possibly modifying. # If using SASL + KRB5 these should be commented out. # identity = 'cn=admin,dc=example,dc=org' # password = mypass So in summary, my questions are: 1. Is there a way to use just the keytab, rather than externally-generated tickets? 2. Under what circumstances would you ever use KRB5_CLIENT_KTNAME as recommended in the sample config? Specifically, this works (using a ticket cache): KRB5CCNAME=/var/tmp/radius.krb5 freeradius -X But these doesn't, whether I point to ticket cache or the keytab: KRB5_CLIENT_KTNAME=/var/tmp/radius.krb5 freeradius -X KRB5_CLIENT_KTNAME=/root/radiusd.keytab freeradius -X Regards, Brian.
On 19/10/2016 11:57, Brian Candler wrote:
As an aside, I wonder if someone can answer this question. Can freeradius itself fetch and refresh its own kerberos tickets using a keytab?
Argh. As soon as I posted, I realised the problem: the keytab was only readable by root. I set a location and permissions to make it readable: # ls -l /etc/radiusd.keytab -rw-r----- 1 root freerad 386 Oct 19 10:59 /etc/radiusd.keytab and now: KRB5_CLIENT_KTNAME=/etc/radiusd.keytab freeradius -X works just fine. Sorry about the noise. Regards, Brian.
On 19/10/2016 12:01, Brian Candler wrote:
I set a location and permissions to make it readable:
# ls -l /etc/radiusd.keytab
-rw-r----- 1 root freerad 386 Oct 19 10:59 /etc/radiusd.keytab
and now:
KRB5_CLIENT_KTNAME=/etc/radiusd.keytab freeradius -X
works just fine
There is a nasty risk though. The way I have it set up, the service principal in /etc/radiusd.keytab has special rights in the LDAP server to read the NT password hash; something which no other user has. However if I "kinit admin" so that I have an existing Kerberos ticket, and then start radiusd, it uses the existing ticket. And this means that user lookups fail: (0) Auth-Type MS-CHAP { (0) mschap: WARNING: No Cleartext-Password configured. Cannot create NT-Password (0) mschap: WARNING: No Cleartext-Password configured. Cannot create LM-Password (0) mschap: Client is using MS-CHAPv1 with NT-Password (0) mschap: ERROR: FAILED: No NT/LM-Password. Cannot perform authentication (0) mschap: ERROR: MS-CHAP2-Response is incorrect (0) [mschap] = reject The solution is to override the credentials cache type: KRB5CCNAME=MEMORY: KRB5_CLIENT_KTNAME=/etc/radiusd.keytab radiusd -X or: [Service] Environment=KRB5_CLIENT_KTNAME=/etc/radiusd.keytab Environment=KRB5CCNAME=MEMORY: (note: capital 'S' in Service appears to be required) Regards, Brian.
On Wed, Oct 19, 2016 at 5:12 PM, Brian Candler <b.candler@pobox.com> wrote:
However if I "kinit admin" so that I have an existing Kerberos ticket, and then start radiusd, it uses the existing ticket. And this means that user lookups fail: ... The solution is to override the credentials cache type:
KRB5CCNAME=MEMORY: KRB5_CLIENT_KTNAME=/etc/radiusd.keytab radiusd -X
Note, when using KRB5_CLIENT_KTNAME you should never acquire with 'kinit' (not even 'kinit -k). Otherwise even if the credentials were acquired for the same principal, the ticket won't get renewed when it expires. So having a distinct ccache is a good idea indeed.
participants (4)
-
Brendan Kearney -
Brian Candler -
Isaac Boukris -
Matthew Newton