Я установил openLDAP, MIT Kerberos и SSD в системах Debian 10 на основе этого руководства. Интегрированный провайдер Kerberos-OpenLDAP на Debian squeeze.
Каждый из трех компонентов находится в собственном контейнере Proxmox LXC.
ldap: 192.168.1.120 (ldap2)
Kerberos: 192.168.1.128 (ограниченный)
Клиент с SSD: 192.168.1.129 (тест)
IP-адреса могут быть разрешены DNS.
Эта проблема:
Когда я вызываю id username, я не получаю результата.
Но с тем же фильтром я получаю результат с ldapsearch.
Войдите в клиентскую систему после 'id test05' (уровень журнала SSD 6)
==> /var/log/sssd/sssd_nss.log <==
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [accept_fd_handler] (0x0400): Client connected!
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [sss_cmd_get_version] (0x0200): Received client version [1].
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [sss_cmd_get_version] (0x0200): Offered version [1].
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [nss_getby_name] (0x0400): Input name: test05
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_send] (0x0400): CR #1: New request 'User by name'
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_process_input] (0x0400): CR #1: Parsing input name [test05]
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [sss_parse_name_for_domains] (0x0200): name 'test05' matched without domain, user is test05
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_set_name] (0x0400): CR #1: Setting name [test05]
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_select_domains] (0x0400): CR #1: Performing a multi-domain search
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_search_domains] (0x0400): CR #1: Search will check the cache and check the data provider
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_set_domain] (0x0400): CR #1: Using domain [xxxxxxx.net]
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_prepare_domain_data] (0x0400): CR #1: Preparing input data for domain [xxxxxxx.net] rules
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_search_send] (0x0400): CR #1: Looking up test05@xxxxxxx.net
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_search_ncache] (0x0400): CR #1: Checking negative cache for [test05@xxxxxxx.net]
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_search_ncache] (0x0400): CR #1: [test05@xxxxxxx.net] is not present in negative cache
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_search_cache] (0x0400): CR #1: Looking up [test05@xxxxxxx.net] in cache
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_search_cache] (0x0400): CR #1: Object [test05@xxxxxxx.net] was not found in cache
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_search_dp] (0x0400): CR #1: Looking up [test05@xxxxxxx.net] in data provider
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [sss_dp_issue_request] (0x0400): Issuing request for [0x55bd0978aee0:1:test05@xxxxxxx.net@xxxxxxx.net]
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [sss_dp_get_account_msg] (0x0400): Creating request for [xxxxxxx.net][0x1][BE_REQ_USER][name=test05@xxxxxxx.net:-]
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [sss_dp_internal_get_send] (0x0400): Entering request [0x55bd0978aee0:1:test05@xxxxxxx.net@xxxxxxx.net]
==> /var/log/sssd/sssd_xxxxxxx.net.log <==
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [dp_get_account_info_handler] (0x0200): Got request for [0x1][BE_REQ_USER][name=test05@xxxxxxx.net]
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [dp_attach_req] (0x0400): DP Request [Account #3]: New request. Flags [0x0001].
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [dp_attach_req] (0x0400): Number of active DP request: 1
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [sdap_search_user_next_base] (0x0400): Searching for users with base [ou=users,dc=lan,dc=xxxxxxx,dc=net]
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [sdap_get_generic_ext_step] (0x0400): calling ldap_search_ext with [(&(uid=test05)(objectclass=posixAccount)(uid=*)(&(uidNumber=*)(!(uidNumber=0))))][ou=users,dc=lan,dc=xxxxxxx,dc=net].
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [sdap_get_generic_op_finished] (0x0400): Search result: No such object(32), no errmsg set
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [sdap_search_user_process] (0x0400): Search for users, returned 0 results.
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [sysdb_search_by_name] (0x0400): No such entry
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [sysdb_delete_user] (0x0400): Error: 2 (No such file or directory)
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [dp_req_done] (0x0400): DP Request [Account #3]: Request handler finished [0]: Success
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [_dp_req_recv] (0x0400): DP Request [Account #3]: Receiving request data.
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [dp_req_reply_list_success] (0x0400): DP Request [Account #3]: Finished. Success.
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [dp_table_value_destructor] (0x0400): Removing [0:1:0x0001:1::xxxxxxx.net:name=test05@xxxxxxx.net] from reply table
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [dp_req_destructor] (0x0400): DP Request [Account #3]: Request removed.
(Thu Jan 16 16:03:48 2020) [sssd[be[xxxxxxx.net]]] [dp_req_destructor] (0x0400): Number of active DP request: 0
==> /var/log/sssd/sssd_nss.log <==
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_search_cache] (0x0400): CR #1: Looking up [test05@xxxxxxx.net] in cache
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_search_cache] (0x0400): CR #1: Object [test05@xxxxxxx.net] was not found in cache
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_search_ncache_add_to_domain] (0x0400): CR #1: Adding [test05@xxxxxxx.net] to negative cache
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [sss_ncache_set_str] (0x0400): Adding [NCE/USER/xxxxxxx.net/test05@xxxxxxx.net] to negative cache
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [cache_req_process_result] (0x0400): CR #1: Finished: Not found
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [sss_dp_req_destructor] (0x0400): Deleting request: [0x55bd0978aee0:1:test05@xxxxxxx.net@xxxxxxx.net]
(Thu Jan 16 16:03:48 2020) [sssd[nss]] [client_recv] (0x0200): Client disconnected!
/ var / log / syslog на хосте ldap2 (всего 3 строки с уровнем логирования 256)
Jan 16 16:03:48 ldap2 slapd[238]: conn=1067 op=6 SRCH base="ou=users,dc=lan,dc=xxxxxxx,dc=net" scope=2 deref=0 filter="(&(uid=test05)(objectClass=posixAccount)(uid=*)(&(uidNumber=*)(!(uidNumber=0))))"
Jan 16 16:03:48 ldap2 slapd[238]: conn=1067 op=6 SRCH attr=objectClass uid userPassword uidNumber gidNumber gecos homeDirectory loginShell krbPrincipalName cn modifyTimestamp modifyTimestamp shadowLastChange shadowMin shadowMax shadowWarning shadowInactive shadowExpire shadowFlag krbLastPwdChange krbPasswordExpiration pwdAttribute authorizedService accountExpires userAccountControl nsAccountLock host rhost loginDisabled loginExpirationTime loginAllowedTimeMap sshPublicKey userCertificate;binary mail
Jan 16 16:03:48 ldap2 slapd[238]: conn=1067 op=6 SEARCH RESULT tag=101 err=32 nentries=0 text=
Как видите, поиск openLDAP вызывается с
база: ou = users, dc = lan, dc = xxxxxxx, dc = net
фильтр:
(&(uid=test05)(objectclass=posixAccount)(uid=*)(&(uidNumber=*)(!(uidNumber=0))))
Когда я выполняю этот поиск непосредственно на хосте openLDAP, я получаю результат:
ldapsearch -Y GSSAPI -b ou=users,dc=lan,dc=xxxxxxx,dc=net "(&(uid=test05)(objectclass=posixAccount)(uid=*)(&(uidNumber=*)(!(uidNumber=0))))" cn uid
SASL/GSSAPI authentication started
SASL username: ldapadm@XXXXXXX.NET
SASL SSF: 256
SASL data security layer installed.
# extended LDIF
#
# LDAPv3
# base <ou=users,dc=lan,dc=xxxxxxx,dc=net> with scope subtree
# filter: (&(uid=test05)(objectclass=posixAccount)(uid=*)(&(uidNumber=*)(!(uidNumber=0))))
# requesting: cn uid
#
.
# test05, users, lan.xxxxxxx.net
dn: uid=test05,ou=users,dc=lan,dc=xxxxxxx,dc=net
cn: test05
uid: test05
/ var / log / syslog на хосте ldap2
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 fd=24 ACCEPT from IP=[::1]:37252 (IP=[::]:389)
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 op=0 BIND dn="" method=163
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 op=0 RESULT tag=97 err=14 text=SASL(0): successful result:
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 op=1 BIND dn="" method=163
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 op=1 RESULT tag=97 err=14 text=SASL(0): successful result:
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 op=2 BIND dn="" method=163
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 op=2 BIND authcid="ldapadm@XXXXXXX.NET" authzid="ldapadm@XXXXXXX.NET"
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 op=2 BIND dn="cn=admin,dc=lan,dc=xxxxxxx,dc=net" mech=GSSAPI sasl_ssf=256 ssf=256
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 op=2 RESULT tag=97 err=0 text=
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 op=3 SRCH base="ou=users,dc=lan,dc=xxxxxxx,dc=net" scope=2 deref=0 filter="(&(uid=test05)(objectClass=posixAccount)(uid=*)(&(uidNumber=*)(!(uidNumber=0))))"
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 op=3 SRCH attr=cn uid
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 op=3 SEARCH RESULT tag=101 err=0 nentries=1 text=
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 op=4 UNBIND
Jan 16 16:19:08 ldap2 slapd[238]: conn=1068 fd=24 closed
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 fd=24 ACCEPT from IP=[::1]:37254 (IP=[::]:389)
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 op=0 BIND dn="" method=163
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 op=0 RESULT tag=97 err=14 text=SASL(0): successful result:
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 op=1 BIND dn="" method=163
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 op=1 RESULT tag=97 err=14 text=SASL(0): successful result:
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 op=2 BIND dn="" method=163
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 op=2 BIND authcid="ldapadm@XXXXXXX.NET" authzid="ldapadm@XXXXXXX.NET"
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 op=2 BIND dn="cn=admin,dc=lan,dc=xxxxxxx,dc=net" mech=GSSAPI sasl_ssf=256 ssf=256
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 op=2 RESULT tag=97 err=0 text=
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 op=3 SRCH base="ou=users,dc=lan,dc=xxxxxxx,dc=net" scope=2 deref=0 filter="(&(uid=test05)(objectClass=posixAccount)(uid=*)(&(uidNumber=*)(!(uidNumber=0))))"
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 op=3 SRCH attr=cn uid
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 op=3 SEARCH RESULT tag=101 err=0 nentries=1 text=
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 op=4 UNBIND
Jan 16 16:19:30 ldap2 slapd[238]: conn=1069 fd=24 closed
Моя конфигурация SSSD
cat /etc/sssd/sssd.conf
[sssd]
config_file_version = 2
services = nss, pam
domains = xxxxxxx.net
[nss]
debug_level = 6
override_shell = /bin/bash
filter_users = root
filter_groups = root
[pam]
offline_credentials_expiration = 60
[domain/xxxxxxx.net]
# A domain with identities provided by LDAP and authentication by Kerberos
debug_level = 6
cache_credentials = true
# -- Authentication provider --
auth_provider = krb5
krb5_server = kerb.xxxxxxx.net
krb5_realm = XXXXXXX.NET
krb5_ccachedir = /tmp
# -- Access provider --
access_provider = permit
# -- Change Password provider --
chpass_provider = krb5
# -- Identity provider --
id_provider = ldap
ldap_uri = ldap://ldap2.xxxxxxx.net
ldap_search_base = dc=lan,dc=xxxxxxx,dc=net
ldap_user_search_base = ou=users,dc=lan,dc=xxxxxxx,dc=net
ldap_sasl_mech = GSSAPI
ldap_sasl_authid = host/test.xxxxxxx.net
ldap_krb5_keytab = /etc/ldap/ldap.keytab
ldap_krb5_init_creds = true
# -- SUDO provider --
sudo_provider = none
Это моя конфигурация LDAP
# config
dn: cn=config
objectClass: olcGlobal
cn: config
olcArgsFile: /var/run/slapd/slapd.args
olcAuthzRegexp: {0}"uid=ldapadm,cn=XXXXXXX.NET,cn=gssapi,cn=auth" "cn=admin,
dc=lan,dc=xxxxxxx,dc=net"
olcAuthzRegexp: {1}"uid=([^,]+),cn=gssapi,cn=auth" "uid=$1,ou=users,dc=lan,dc=
xxxxxxx,dc=net"
olcAuthzRegexp: {2}"uid=([^,]+),cn=XXXXXXX.NET,cn=gssapi,cn=auth" "uid=$1,ou
=users,dc=lan,dc=xxxxxxx,dc=net"
olcAuthzRegexp: {3}"uid=host/([^,]+).XXXXXXX.NET,cn=xxxxxxx.net,cn=gssapi,
cn=auth" "cn=$1,ou=hosts,dc=lan,dc=xxxxxxx,dc=net"
olcDisallows: bind_anon
olcLogLevel: 256
olcPidFile: /var/run/slapd/slapd.pid
olcRequires: authc
olcSaslHost: ldap2.xxxxxxx.net
olcSaslRealm: XXXXXXX.NET
olcTLSCACertificateFile: /etc/ssl/openldap/certs/ca-chain-cert.pem
olcTLSCertificateFile: /etc/ssl/openldap/certs/ldap2-server-cert.pem
olcTLSCertificateKeyFile: /etc/ssl/openldap/private/ldap2-server-key.pem
olcTLSProtocolMin: 3.1
olcToolThreads: 1
# {0}config, config
dn: olcDatabase={0}config,cn=config
objectClass: olcDatabaseConfig
olcDatabase: {0}config
olcAccess: {0}to * by dn.exact=gidNumber=0+uidNumber=0,cn=peercred,cn=external
,cn=auth manage by * break
olcRootDN: cn=admin,cn=config
# {1}mdb, config
dn: olcDatabase={1}mdb,cn=config
objectClass: olcDatabaseConfig
objectClass: olcMdbConfig
olcDatabase: {1}mdb
olcDbDirectory: /var/lib/ldap
olcSuffix: dc=lan,dc=xxxxxxx,dc=net
olcAccess: {0}to attrs=userPassword,shadowLastChange by dn="cn=admin,dc=lan,dc
=xxxxxxx,dc=net" write by dn="cn=sssdman,ou=manager,dc=lan,dc=xxxxxxx,dc=
net" read by dn="cn=mailman,ou=vmail,ou=services,dc=lan,dc=xxxxxxx,dc=net"
read by self write by anonymous auth by * none
olcAccess: {1}to dn.base="" by * read
olcAccess: {2}to dn.subtree="ou=vmail,ou=services,dc=lan,dc=xxxxxxx,dc=net"
by dn="cn=admin,dc=lan,dc=xxxxxxx,dc=net" write by dn="cn=mailman,ou=vmail,
ou=services,dc=lan,dc=xxxxxxx,dc=net" read by self write by anonymous auth
by * none
olcAccess: {3}to dn.subtree="cn=krb5,ou=services,dc=lan,dc=xxxxxxx,dc=net" b
y dn="cn=admin,dc=lan,dc=xxxxxxx,dc=net" write by dn="cn=adm-srv,cn=krb5,ou
=services,dc=lan,dc=xxxxxxx,dc=net" write by dn="cn=kdc-srv,cn=krb5,ou=serv
ices,dc=lan,dc=xxxxxxx,dc=net" read by * none
olcAccess: {4}to * by dn="cn=admin,dc=lan,dc=xxxxxxx,dc=net" write by dn="cn
=sssdman,ou=manager,dc=lan,dc=xxxxxxx,dc=net" read by self write by anonymo
us auth by * none
olcLastMod: TRUE
olcRootDN: cn=admin,dc=lan,dc=xxxxxxx,dc=net
olcRootPW: {SSHA}...
Бьюсь с этой проблемой вот уже два дня. Google не помог.
Кто-нибудь может помочь мне это исправить?
Ваши операторы olcAccess слишком строги, чтобы позволить принципалу, используемому sssd, читать те данные, которые вы хотите, чтобы он видел.
Оскорбительная строка:
olcAccess: {4}to *
by dn="cn=admin,dc=lan,dc=xxxxxxx,dc=net" write
by dn="cn=sssdman,ou=manager,dc=lan,dc=xxxxxxx,dc=net" read
by self write
by anonymous auth
by * none
Вероятно, вам нужно что-то вроде:
olcAccess: {4}to *
by dn="cn=admin,dc=lan,dc=xxxxxxx,dc=net" write
by dn="cn=sssdman,ou=manager,dc=lan,dc=xxxxxxx,dc=net" read
by dn.one="ou=hosts,dc=lan,dc=xxxxxxx,dc=net"
by self write
by anonymous auth
by * none
Это предполагает ваше olcAuthzRegexp: {3} заявление работает так, как вы хотите, но я бы тоже проверил, чтобы в этом убедиться. (kinit -k и ldapwhoami -Y буду твоими друзьями за это.)
Вы также можете сделать более конкретный olcAccess с помощью to attrs=@posixAccount,@posixGroup by ....
Большое спасибо за ваш ответ. Ты абсолютно прав.
Я не думал об ошибке аутентификации, потому что в журналах нет сообщения об этом.
Когда я меняю оператор olcAccess на
olcAccess: {4}to *
by dn="cn=admin,dc=lan,dc=xxxxxxx,dc=net" write
by dn="cn=sssdman,ou=manager,dc=lan,dc=xxxxxxx,dc=net" read
by self write
by anonymous auth
by * read <--- this works, but it is not what I want
оно работает.
Затем изменил мою конфигурацию в соответствии с вашими предложениями, и все в порядке. Вот внесенные мной изменения:
dn: cn=config
add: olcAuthzRegexp
olcAuthzRegexp: "uid=host/([^,]+).xxxxxxx.net,cn=gssapi,cn=auth" "cn=$1,ou=hosts,ou=sssd,ou=services,dc=lan,dc=xxxxxxx,dc=net"
dn: cn=config
add: olcAuthzRegexp
olcAuthzRegexp: "uid=host/([^,]+).xxxxxxx.net,cn=XXXXXXX.NET,cn=gssapi,cn=auth" "cn=$1,ou=hosts,ou=sssd,ou=services,dc=lan,dc=xxxxxxx,dc=net"
это очень важно что эти записи хоста находятся перед записями uid. В противном случае вы получите совпадение с хостом с отображением uid.
olcAccess: {4}to *
by dn="cn=admin,dc=lan,dc=xxxxxxx,dc=net" write
by dn="cn=sssdman,ou=manager,dc=lan,dc=xxxxxxx,dc=net" read
by dn.one="ou=hosts,ou=sssd,ou=services,dc=lan,dc=xxxxxxx,dc=net" read
by self write
by anonymous auth
by * none
dn: cn=test,ou=hosts,ou=sssd,ou=services,dc=lan,dc=xxxxxxx,dc=net
cn: test
objectclass: device
objectclass: hostObject
objectclass: authorizedServiceObject
objectclass: top
authorizedService: host
host: test.nottebrok.net
description: Test Host