가장 안전하고 올바른 방법으로 사용자 인증을 위해 Centos 6에서 LDAP를 구성하려면 어떻게해야합니까?

지난 며칠 동안 나는 LDAP 서버를 설정하는 방법에 대한 좋은 문서를 찾기 위해 인터넷을 탐색하면서 많은 F 단어를 사용했습니다. 지금까지 나는 아무것도 발견하지 못했지만 많은 것이 좋지는 않지만 나쁜 것보다 낫습니다. 그래서 나는 일반적인 리눅스 방식으로 읽고, 테스트하고, 비명을 지르고, 읽고, 테스트하고, 비명을 질렀다.

LDAP 서버의 목표는 다음과 같습니다.

서버와 클라이언트 모두 Centos 6 최소 설치에 LDAP를 설치하십시오.
OpenLDAP 개발자가 의도 한 방식으로 설치하십시오.
LDAPS, iptables, SELinux 등을 활성화하여 안전하게 LDAP를 설치하십시오.
LDAP 서버에 대한 "인증"연결을 위해 클라이언트에서 SSSD를 사용하십시오.

이것은 내가 스스로 대답하는 일종의 질문이지만 설치를 더 잘하는 방법에 대한 제안을 부탁드립니다.

— 알루 킨
소스

FreeIPA 는 단순한 LDAP 이상의 기능을 수행하지만 (LDAP 서버는 OpenLDAP 대신 389 DS) 클라이언트의 SSSD를 포함한 많은 설정에 도움이되며 RHEL / CentOS 6과 함께 표준으로 제공됩니다.

— Sam Hartsfield

다음은 서버에 openldap을 설치 및 구성하고 LDAP 서버에 대한 사용자 인증을 위해 sssd를 설치 및 구성하는 셸 스크립트입니다.

그룹, 사용자 등으로 LDAP 서버를 설치하는 것

#!/bin/sh
###########################################################
# Install LDAP-server
###########################################################

# Enable SELinux for higher security.
setenforce 1
setsebool -P domain_kernel_load_modules 1

# Communication with the LDAP-server needs to be done with domain name, and not
# the ip. This ensures the dns-name is configured.
cat >> /etc/hosts << EOF
10.100.110.7 ldap.syco.net
EOF

# Install all required packages.
yum -y install openldap-servers openldap-clients

# Create backend database.
cp /usr/share/doc/openldap-servers-2.4.19/DB_CONFIG.example /var/lib/ldap/DB_CONFIG
chown -R ldap:ldap /var/lib/ldap

# Set password for cn=admin,cn=config (it's secret)
cat >> /etc/openldap/slapd.d/cn\=config/olcDatabase\=\{0\}config.ldif << EOF
olcRootPW: {SSHA}OjXYLr1oZ/LrHHTmjnPWYi1GjbgcYxSb
EOF

# Autostart slapd after reboot.
chkconfig slapd on

# Start ldap server
service slapd start

# Wait for slapd to start.
sleep 1

###########################################################
# General configuration of the server.
###########################################################

# Create folder to store log files in
mkdir /var/log/slapd
chmod 755 /var/log/slapd/
chown ldap:ldap /var/log/slapd/

# Redirect all log files through rsyslog.
sed -i "/local4.*/d" /etc/rsyslog.conf
cat >> /etc/rsyslog.conf << EOF
local4.*                        /var/log/slapd/slapd.log
EOF
service rsyslog restart

# Do the configurations.
ldapadd -H ldap://ldap.syco.net -x -D "cn=admin,cn=config" -w secret << EOF

# Setup logfile (not working now, propably needing debug level settings.)
dn: cn=config
changetype:modify
replace: olcLogLevel
olcLogLevel: config stats shell
-
replace: olcIdleTimeout
olcIdleTimeout: 30

# Set access for the monitor db.
dn: olcDatabase={2}monitor,cn=config
changetype: modify
replace: olcAccess
olcAccess: {0}to * by dn.base="cn=Manager,dc=syco,dc=net" read  by * none

# Set password for cn=admin,cn=config
dn: olcDatabase={0}config,cn=config
changetype: modify
replace: olcRootPW
olcRootPW: {SSHA}OjXYLr1oZ/LrHHTmjnPWYi1GjbgcYxSb

# Change LDAP-domain, password and access rights.
dn: olcDatabase={1}bdb,cn=config
changetype: modify
replace: olcSuffix
olcSuffix: dc=syco,dc=net
-
replace: olcRootDN
olcRootDN: cn=Manager,dc=syco,dc=net
-
replace: olcRootPW
olcRootPW: {SSHA}OjXYLr1oZ/LrHHTmjnPWYi1GjbgcYxSb
-
replace: olcAccess
olcAccess: {0}to attrs=employeeType by dn="cn=sssd,dc=syco,dc=net" read by self read by * none
olcAccess: {1}to attrs=userPassword,shadowLastChange by self write by anonymous auth by * none
olcAccess: {2}to dn.base="" by * none
olcAccess: {3}to * by dn="cn=admin,cn=config" write by dn="cn=sssd,dc=syco,dc=net" read by self write by * none
EOF

##########################################################
# Configure sudo in ldap
#
# Users that should have sudo rights, are configured in
# in the ldap-db. The ldap sudo schema are not configured
# by default, and are here created.
#
# http://eatingsecurity.blogspot.com/2008/10/openldap-continued.html
# http://www.sudo.ws/sudo/man/1.8.2/sudoers.ldap.man.html
##########################################################

# Copy the sudo Schema into the LDAP schema repository
/bin/cp -f /usr/share/doc/sudo-1.7.2p2/schema.OpenLDAP /etc/openldap/schema/sudo.schema
restorecon /etc/openldap/schema/sudo.schema

# Create a conversion file for schema
mkdir ~/sudoWork
echo "include /etc/openldap/schema/sudo.schema" > ~/sudoWork/sudoSchema.conf

# Convert the "Schema" to "LDIF".
slapcat -f ~/sudoWork/sudoSchema.conf -F /tmp/ -n0 -s "cn={0}sudo,cn=schema,cn=config" > ~/sudoWork/sudo.ldif

# Remove invalid data.
sed -i "s/{0}sudo/sudo/g" ~/sudoWork/sudo.ldif

# Remove last 8 (invalid) lines.
head -n-8 ~/sudoWork/sudo.ldif > ~/sudoWork/sudo2.ldif

# Load the schema into the LDAP server
ldapadd -H ldap:/// -x -D "cn=admin,cn=config" -w secret -f ~/sudoWork/sudo2.ldif

# Add index to sudoers db
ldapadd -H ldap:/// -x -D "cn=admin,cn=config" -w secret << EOF
dn: olcDatabase={1}bdb,cn=config
changetype: modify
add: olcDbIndex
olcDbIndex: sudoUser    eq
EOF

###########################################################
# Create modules area
#
###########################################################
ldapadd -H ldap:/// -x -D "cn=admin,cn=config" -w secret << EOF
dn: cn=module{0},cn=config
objectClass: olcModuleList
cn: module{0}
olcModulePath: /usr/lib64/openldap/
EOF

###########################################################
# Add auditlog overlay.
#
# http://www.manpagez.com/man/5/slapo-auditlog/
###########################################################
ldapadd -H ldap:/// -x -D "cn=admin,cn=config" -w secret << EOF
dn: cn=module{0},cn=config
changetype:modify
add: olcModuleLoad
olcModuleLoad: auditlog.la

dn: olcOverlay=auditlog,olcDatabase={1}bdb,cn=config
changetype: add
objectClass: olcOverlayConfig
objectClass: olcAuditLogConfig
olcOverlay: auditlog
olcAuditlogFile: /var/log/slapd/auditlog.log
EOF

###########################################################
# Add accesslog overlay.
#
# http://www.manpagez.com/man/5/slapo-accesslog/
#
# TODO: Didn't get it working.
#
###########################################################
# ldapadd -H ldap:/// -x -D "cn=admin,cn=config" -w secret << EOF
# dn: cn=module,cn=config
# objectClass: olcModuleList
# cn: module
# olcModulePath: /usr/lib64/openldap/
# olcModuleLoad: access.la
#
#
# dn: olcOverlay=accesslog,olcDatabase={1}bdb,cn=config
# changetype: add
# olcOverlay: accesslog
# objectClass: olcOverlayConfig
# objectClass: olcAccessLogConfig
# logdb: cn=auditlog
# logops: writes reads
# # read log every 5 days and purge entries
# # when older than 30 days
# logpurge 180+00:00 5+00:00
# # optional - saves the previous contents of
# # person objectclass before performing a write operation
# logold: (objectclass=person)
# EOF

###########################################################
# Add pwdpolicy overlay
#
# http://www.zytrax.com/books/ldap/ch6/ppolicy.html
# http://www.openldap.org/software/man.cgi?query=slapo-ppolicy&sektion=5&apropos=0&manpath=OpenLDAP+2.3-Release
# http://www.symas.com/blog/?page_id=66
###########################################################

ldapadd -H ldap:/// -x -D "cn=admin,cn=config" -w secret << EOF
dn: cn=module{0},cn=config
changetype:modify
add: olcModuleLoad
olcModuleLoad: ppolicy.la

dn: olcOverlay=ppolicy,olcDatabase={1}bdb,cn=config
olcOverlay: ppolicy
objectClass: olcOverlayConfig
objectClass: olcPPolicyConfig
olcPPolicyHashCleartext: TRUE
olcPPolicyUseLockout: FALSE
olcPPolicyDefault: cn=default,ou=pwpolicies,dc=syco,dc=net
EOF

##########################################################
# Add users, groups, sudoers. Ie. the dc=syco,dc=net database.
##########################################################
ldapadd  -H ldap:/// -x -D "cn=Manager,dc=syco,dc=net" -w secret  -f /opt/syco/doc/ldap/manager.ldif

###########################################################
# Create certificates
###########################################################

# Create CA
echo "00" > /etc/openldap/cacerts/ca.srl
openssl req -new -x509 -sha512 -nodes -days 3650 -newkey rsa:4096\
    -out /etc/openldap/cacerts/ca.crt \
    -keyout /etc/openldap/cacerts/ca.key \
    -subj '/O=syco/OU=System Console Project/CN=systemconsole.github.com'

# Creating server cert
openssl req -new -sha512 -nodes -days 1095 -newkey rsa:4096 \
    -keyout /etc/openldap/cacerts/slapd.key \
    -out /etc/openldap/cacerts/slapd.csr \
    -subj '/O=syco/OU=System Console Project/CN=ldap.syco.net'
openssl x509 -req -sha512 -days 1095 \
    -in /etc/openldap/cacerts/slapd.csr \
    -out /etc/openldap/cacerts/slapd.crt \
    -CA /etc/openldap/cacerts/ca.crt \
    -CAkey /etc/openldap/cacerts/ca.key

#
# Customer create a CSR (Certificate Signing Request) file for client cert
#
openssl req -new -sha512 -nodes -days 1095 -newkey rsa:4096 \
    -keyout /etc/openldap/cacerts/client.key \
    -out /etc/openldap/cacerts/client.csr \
    -subj '/O=syco/OU=System Console Project/CN=client.syco.net'

#
# Create a signed client crt.
#
cat > /etc/openldap/cacerts/sign.conf << EOF
[ v3_req ]
basicConstraints = critical,CA:FALSE
keyUsage = critical,digitalSignature
subjectKeyIdentifier = hash
EOF

openssl x509 -req -days 1095 \
    -sha512 \
    -extensions v3_req \
    -extfile /etc/openldap/cacerts/sign.conf \
    -CA /etc/openldap/cacerts/ca.crt \
    -CAkey /etc/openldap/cacerts/ca.key \
    -in /etc/openldap/cacerts/client.csr \
    -out /etc/openldap/cacerts/client.crt

# One file with both crt and key. Easier to manage the cert on client side.
cat /etc/openldap/cacerts/client.crt /etc/openldap/cacerts/client.key > \
    /etc/openldap/cacerts/client.pem

# Create hash and set permissions of cert
/usr/sbin/cacertdir_rehash /etc/openldap/cacerts
chown -Rf root:ldap /etc/openldap/cacerts
chmod -Rf 750 /etc/openldap/cacerts
restorecon -R /etc/openldap/cacerts

# View cert info
# openssl x509 -text -in /etc/openldap/cacerts/ca.crt
# openssl x509 -text -in /etc/openldap/cacerts/slapd.crt
# openssl x509 -text -in /etc/openldap/cacerts/client.pem
# openssl req -noout -text -in /etc/openldap/cacerts/client.csr

###########################################################
# Configure ssl
#
# Configure slapd to only be accessible over ssl,
# with client certificate.
#
# http://www.openldap.org/pub/ksoper/OpenLDAP_TLS.html#4.0
# http://www.openldap.org/faq/data/cache/185.html
###########################################################
ldapadd -H ldap:/// -x -D "cn=admin,cn=config" -w secret << EOF
dn: cn=config
changetype:modify
replace: olcTLSCertificateKeyFile
olcTLSCertificateKeyFile: /etc/openldap/cacerts/slapd.key
-
replace: olcTLSCertificateFile
olcTLSCertificateFile: /etc/openldap/cacerts/slapd.crt
-
replace: olcTLSCACertificateFile
olcTLSCACertificateFile: /etc/openldap/cacerts/ca.crt
-
replace: olcTLSCipherSuite
olcTLSCipherSuite: HIGH:MEDIUM:-SSLv2
-
replace: olcTLSVerifyClient
olcTLSVerifyClient: demand
EOF

# Enable LDAPS and dispable LDAP
sed -i 's/[#]*SLAPD_LDAPS=.*/SLAPD_LDAPS=yes/g' /etc/sysconfig/ldap
sed -i 's/[#]*SLAPD_LDAP=.*/SLAPD_LDAP=no/g' /etc/sysconfig/ldap
service slapd restart

# Configure the client cert to be used by ldapsearch for user root.
sed -i '/^TLS_CERT.*\|^TLS_KEY.*/d' /root/ldaprc
cat >> /root/ldaprc  << EOF
TLS_CERT /etc/openldap/cacerts/client.pem
TLS_KEY /etc/openldap/cacerts/client.pem
EOF

###########################################################
# Require higher security from clients.
###########################################################
ldapadd -H ldaps://ldap.syco.net -x -D "cn=admin,cn=config" -w secret << EOF
dn: cn=config
changetype:modify
replace: olcLocalSSF
olcLocalSSF: 128
-
replace: olcSaslSecProps
olcSaslSecProps: noanonymous,noplain

dn: cn=config
changetype:modify
replace: olcSecurity
olcSecurity: ssf=128
olcSecurity: simple_bind=128
olcSecurity: tls=128
EOF

###########################################################
# Open firewall
#
# Let clients connect to the server through the firewall.
# This is done after everything else is done, so we are sure
# that the server is secure before letting somebody in.
# TODO: Add destination ip
###########################################################
iptables -I INPUT -m state --state NEW -p tcp -s 10.100.110.7/24 --dport 636 -j ACCEPT

그리고 클라이언트에 sssd를 설치하고 LDAP 서버에 연결합니다.

#!/bin/sh
###########################################################
# Install LDAP-client
#
# This part should be executed on both LDAP-Server and
# on all clients that should authenticate against the
# LDAP-server
#
# This script is based on information from at least the following links.
#   http://www.server-world.info/en/note?os=CentOS_6&p=ldap&f=2
#   http://docs.fedoraproject.org/en-US/Fedora/15/html/Deployment_Guide/chap-SSSD_User_Guide-Introduction.html
#
###########################################################

###########################################################
# Uninstall sssd
#
# Note: Only needed if sssd has been setup before.
#       might need --skip-broken when installing sssd.
###########################################################
#yum -y remove openldap-clients sssd
#rm -rf /var/lib/sss/

###########################################################
# Install relevant packages
###########################################################
# Install packages
yum -y install openldap-clients

# Pick one package from the Continuous Release
# Version 1.5.1 of sssd.
yum -y install sssd --skip-broken
yum -y install centos-release-cr
yum -y update sssd
yum -y remove centos-release-cr

###########################################################
# Get certificate from ldap server
#
# This is not needed to be done on the server.
###########################################################
if [ ! -f /etc/openldap/cacerts/client.pem ];
then
    scp root@10.100.110.7:/etc/openldap/cacerts/client.pem /etc/openldap/cacerts/client.pem
fi

if [ ! -f /etc/openldap/cacerts/ca.crt ];
then
    scp root@10.100.110.7:/etc/openldap/cacerts/ca.crt /etc/openldap/cacerts/ca.crt
fi

/usr/sbin/cacertdir_rehash /etc/openldap/cacerts
chown -Rf root:ldap /etc/openldap/cacerts
chmod -Rf 750 /etc/openldap/cacerts
restorecon -R /etc/openldap/cacerts

###########################################################
# Configure client authenticate against ldap.
###########################################################
# Setup iptables before configuring sssd, so it can connect to the server.
iptables -I OUTPUT -m state --state NEW -p tcp -d 10.100.110.7 --dport 636 -j ACCEPT

# Communication with the LDAP-server needs to be done with domain name, and not
# the ip. This ensures the dns-name is configured.
sed -i '/^10.100.110.7.*/d' /etc/hosts
cat >> /etc/hosts << EOF
10.100.110.7 ldap.syco.net
EOF

# Configure all relevant /etc files for sssd, ldap etc.
authconfig \
    --enablesssd --enablesssdauth --enablecachecreds \
    --enableldap --enableldaptls --enableldapauth \
    --ldapserver=ldaps://ldap.syco.net --ldapbasedn=dc=syco,dc=net \
    --disablenis --disablekrb5 \
    --enableshadow --enablemkhomedir --enablelocauthorize \
    --passalgo=sha512 \
    --updateall

# Configure the client cert to be used by ldapsearch for user root.
sed -i '/^TLS_CERT.*\|^TLS_KEY.*/d' /root/ldaprc
cat >> /root/ldaprc  << EOF
TLS_CERT /etc/openldap/cacerts/client.pem
TLS_KEY /etc/openldap/cacerts/client.pem
EOF

###########################################################
# Configure sssd
###########################################################

# If the authentication provider is offline, specifies for how long to allow
# cached log-ins (in days). This value is measured from the last successful
# online log-in. If not specified, defaults to 0 (no limit).
sed -i '/\[pam\]/a offline_credentials_expiration=5' /etc/sssd/sssd.conf

cat >> /etc/sssd/sssd.conf << EOF
# Enumeration means that the entire set of available users and groups on the
# remote source is cached on the local machine. When enumeration is disabled,
# users and groups are only cached as they are requested.
enumerate=true

# Configure client certificate auth.
ldap_tls_cert = /etc/openldap/cacerts/client.pem
ldap_tls_key = /etc/openldap/cacerts/client.pem
ldap_tls_reqcert = demand

# Only users with this employeeType are allowed to login to this computer.
access_provider = ldap
ldap_access_filter = (employeeType=Sysop)

# Login to ldap with a specified user.
ldap_default_bind_dn = cn=sssd,dc=syco,dc=net
ldap_default_authtok_type = password
ldap_default_authtok = secret
EOF

# Restart sssd
service sssd restart

# Start sssd after reboot.
chkconfig sssd on

###########################################################
# Configure the client to use sudo
###########################################################
sed -i '/^sudoers.*/d' /etc/nsswitch.conf
cat >> /etc/nsswitch.conf << EOF
sudoers: ldap files
EOF

sed -i '/^sudoers_base.*\|^binddn.*\|^bindpw.*\|^ssl on.*\|^tls_cert.*\|^tls_key.*\|sudoers_debug.*/d' /etc/ldap.conf
cat >> /etc/ldap.conf << EOF
# Configure sudo ldap.
uri ldaps://ldap.syco.net
base dc=syco,dc=net
sudoers_base ou=SUDOers,dc=syco,dc=net
binddn cn=sssd,dc=syco,dc=net
bindpw secret
ssl on
tls_cacertdir /etc/openldap/cacerts
tls_cert /etc/openldap/cacerts/client.pem
tls_key /etc/openldap/cacerts/client.pem
#sudoers_debug 5
EOF

위 스크립트와 같은 폴더에 배치해야하는 LDIF 파일도 제공됩니다.

# Filename: manager.ldif
###########################################################
# NEW DATABASE
###########################################################
dn: dc=syco,dc=net
objectClass: top
objectclass: dcObject
objectclass: organization
o: System Console Project
dc: syco
description: Tree root

# Used by sssd to ask general queries.
dn: cn=sssd,dc=syco,dc=net
objectClass: simpleSecurityObject
objectClass: organizationalRole
cn: sssd
description: Account for sssd.
userPassword: {SSHA}OjXYLr1oZ/LrHHTmjnPWYi1GjbgcYxSb

###########################################################
# Add pwdpolicy overlay
# Need to be done before adding new users.
###########################################################
dn: ou=pwpolicies,dc=syco,dc=net
objectClass: organizationalUnit
objectClass: top
ou: policies

dn: cn=default,ou=pwpolicies,dc=syco,dc=net
cn: default
#objectClass: pwdPolicyChecker
objectClass: pwdPolicy
objectClass: person
objectClass: top
pwdAllowUserChange: TRUE
pwdAttribute: 2.5.4.35
#pwdCheckModule: crackcheck.so
#pwdCheckQuality: 2
pwdExpireWarning: 604800
pwdFailureCountInterval: 30
pwdGraceAuthNLimit: 0
pwdInHistory: 10
pwdLockout: TRUE
pwdLockoutDuration: 3600
pwdMaxAge: 7776000
pwdMaxFailure: 5
pwdMinAge: 3600
pwdMinLength: 12
pwdMustChange: FALSE
pwdSafeModify: FALSE
sn: dummy value
EOF

###########################################################
# GROUPS
###########################################################
dn: ou=group,dc=syco,dc=net
objectClass: top
objectclass: organizationalunit
ou: group

dn: cn=sycousers,ou=group,dc=syco,dc=net
cn: sycousers
objectClass: posixGroup
gidNumber: 2000
memberUid: user1
memberUid: user2
memberUid: user3

dn: cn=sysop,ou=group,dc=syco,dc=net
cn: sysop
objectClass: posixGroup
gidNumber: 2001
memberUid: user1
memberUid: user2

dn: cn=management,ou=group,dc=syco,dc=net
cn: management
objectClass: posixGroup
gidNumber: 2002
memberUid: user1

###########################################################
# USERS
###########################################################
dn: ou=people,dc=syco,dc=net
objectClass: top
objectclass: organizationalunit
ou: people

dn: uid=user1,ou=people,dc=syco,dc=net
objectClass: inetOrgPerson
objectClass: posixAccount
objectClass: shadowAccount
uid: user1
employeeType: Sysop
givenName: User1
surname: Syco
displayName: Syco User1
commonName: Syco User1
gecos: Syco User1
initials: SU
title: System Administrator (fratsecret)
userPassword: {CRYPT}frzelFSD.VhkI
loginShell: /bin/bash
uidNumber: 2001
gidNumber: 2000
homeDirectory: /home/user1
shadowExpire: -1
shadowFlag: 0
shadowWarning: 7
shadowMin: 8
shadowMax: 999999
shadowLastChange: 10877
mail: sycouser@syco.net
postalCode: 666666
mobile: +46 (0)73 xx xx xx xx
homePhone: +46 (0)8 xx xx xx xx
postalAddress:

dn: uid=user2,ou=people,dc=syco,dc=net
objectClass: inetOrgPerson
objectClass: posixAccount
objectClass: shadowAccount
uid: user2
employeeType: Sysop
givenName: User2
surname: Syco
displayName: Syco User2
commonName: Syco User2
gecos: Syco User2
initials: SU
title: System Administrator
userPassword: {CRYPT}frzelFSD.VhkI
loginShell: /bin/bash
uidNumber: 2002
gidNumber: 2000
homeDirectory: /home/user2
shadowExpire: -1
shadowFlag: 0
shadowWarning: 7
shadowMin: 8
shadowMax: 999999
shadowLastChange: 10877
mail: sycouser@syco.net
postalCode: 666666
mobile: +46 (0)73 xx xx xx xx
homePhone: +46 (0)8 xx xx xx xx
postalAddress:

dn: uid=user3,ou=people,dc=syco,dc=net
objectClass: inetOrgPerson
objectClass: posixAccount
objectClass: shadowAccount
uid: user3
employeeType: Developer
givenName: User3
surname: Syco
displayName: Syco User3
commonName: Syco User3
gecos: Syco User3
initials: SU
title: System Administrator
userPassword: {CRYPT}frzelFSD.VhkI
loginShell: /bin/bash
uidNumber: 2003
gidNumber: 2000
homeDirectory: /home/user3
shadowExpire: -1
shadowFlag: 0
shadowWarning: 7
shadowMin: 8
shadowMax: 999999
shadowLastChange: 10877
mail: sycouser@syco.net
postalCode: 666666
mobile: +46 (0)73 xx xx xx xx
homePhone: +46 (0)8 xx xx xx xx
postalAddress:

###########################################################
# SUDOERS
###########################################################
dn: ou=SUDOers,dc=syco,dc=net
objectClass: top
objectClass: organizationalUnit
ou: SUDOers

dn: cn=defaults,ou=SUDOers,dc=syco,dc=net
objectClass: top
objectClass: sudoRole
cn: defaults
description: Default sudoOptions go here
sudoOption: requiretty
sudoOption: always_set_home
sudoOption: env_reset
sudoOption: env_keep="COLORS DISPLAY HOSTNAME HISTSIZE INPUTRC KDEDIR LS_COLORS"
sudoOption: env_keep+="MAIL PS1 PS2 QTDIR USERNAME LANG LC_ADDRESS LC_CTYPE"
sudoOption: env_keep+="LC_COLLATE LC_IDENTIFICATION LC_MEASUREMENT LC_MESSAGES"
sudoOption: env_keep+="LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER LC_TELEPHONE"
sudoOption: env_keep+="LC_TIME LC_ALL LANGUAGE LINGUAS _XKB_CHARSET XAUTHORITY"
sudoOption: secure_path=/sbin:/bin:/usr/sbin:/usr/bin

dn: cn=root,ou=SUDOers,dc=syco,dc=net
objectClass: top
objectClass: sudoRole
cn: root
sudoUser: root
sudoHost: ALL
sudoRunAsUser: ALL
sudoCommand: ALL

# Allow all sysops to execute anything
dn: cn=%sysop,ou=SUDOers,dc=syco,dc=net
objectClass: top
objectClass: sudoRole
cn: %sysop
sudoUser: %sysop
sudoHost: ALL
sudoRunAsUser: ALL
sudoCommand: ALL

서버에서 스크립트를 실행하기 전에 스크립트를 이해하고 편집해야합니다. 설치를 위해 사용자 정의해야하는 다른 것들 중에는 "syco.net", 사용자, 그룹 및 암호와 관련된 것들이 있습니다.

— 개정
소스

최신 버전의 CentOS 6 및 openldap-server에서 많은 부분이 구문을 변경했지만 지금까지 온라인에서 찾은 가장 유용한 문서였습니다.

— Alan Ivey

클라이언트 설정

Arlukin의 답변을 꽤 많이 언급했지만 클라이언트 설정의 버전이 도움이 될 것이라고 생각했습니다. 인증서가 설정되면 다음을 수행하십시오.

yum install sssd pam_ldap
chkconfig sssd on

authconfig      \
 --enablesssd --enablesssdauth --enablecachecreds \
 --enableldap --enableldaptls --enableldapauth \
 --ldapserver=ldap://ldap.example.com --ldapbasedn=dc=example,dc=com \
 --disablenis --disablekrb5 \
 --enableshadow --enablemkhomedir --enablelocauthorize \
 --passalgo=sha512 --updateall

이 [domain/default]섹션에 다음 설정을 추가하십시오 /etc/sssd/sssd.conf.

ldap_schema = rfc2307bis
ldap_user_fullname = displayName
ldap_user_search_base = dc=People,dc=example,dc=com
ldap_group_search_base = dc=Roles,dc=example,dc=com
ldap_group_member = member
ldap_group_nesting_level = 4

ldap_default_bind_dn = cn=fooServer,dc=Devices,dc=example,dc=com
ldap_default_authtok_type = password
ldap_default_authtok = yourSecretPassword

인증서없이 설정을 테스트하려면

ldap_id_use_start_tls = False
ldap_auth_disable_tls_never_use_in_production = true

OpenLDAP 액세스 제어

시작하는 데 도움이되는 일부 액세스 제어 규칙 (순서 는 중요 함). 명심 break처리되는 동일한 대상에 맞게 다른 규칙을 허용합니다. 이 중 일부는 중첩 그룹을 대상으로 합니다. ldap의 dn 기반 Linux 그룹을 참조하십시오 .

to attrs=userPassword,sambaLMPassword,sambaNTPassword
  by anonymous auth
  by self =rwdx
  by set="user & [cn=Administrators,ou=LDAP,dc=Applications,dc=example,dc=com]/member*" manage
  by dn.children="ou=Special Accounts,dc=example,dc=com" auth

익명 사용자가 인증하도록 허용
인증 된 사용자는 자신의 암호를 변경할 수 있습니다
LDAP 관리자 그룹의 구성원은 누구나 비밀번호를 변경할 수 있습니다.
마지막 줄은 특별 계정 회원의 프록시 인증을위한 것입니다

to *
  by set="user & [cn=Administrators,ou=LDAP,dc=Applications,dc=example,dc=com]/member*" manage
  by * break

모든 LDAP 관리자가 무엇이든 변경할 수 있습니다.

to dn.children="dc=Roles,dc=example,dc=com" attrs=member
  by set="user & this/owner" manage
  by set="user & this/owner*/member*" manage
  by set="user & this/owner*/manager*" manage
  by set="user & this/owner*/member*/manager*" manage
  by * break

사용자가 자신이 소유 한 그룹을 관리 할 수 있습니다
그룹도 소유자가 될 수 있습니다
그룹 소유자의 관리자는 누구나 그룹을 관리 할 수 있습니다
그룹 foo이 그룹 의 소유자 인 경우 bar모든 사람의 관리자도 foo관리 할 수 bar있습니다

to dn.children="ou=Special Accounts,dc=example,dc=com" attrs=authzTo
  by * auth

특수 계정에서 다른 사용자에게 프록시 인증을 허용합니다. 이것은 웹 서버가 특별한 계정을 사용하여 한 번 바인딩 한 다음 동일한 연결에서 일반 사용자의 자격 증명을 확인할 수 있도록 사용될 수 있습니다.

to dn.children="dc=People,dc=example,dc=com" 
  attrs=givenName,sn,middleName,dateOfBirth,displayName,cn,
    telephoneNumber,fax,postalAddress,homePhone,homePostalAddress,mobile,pager,
    postalCode,postOfficeBox,preferredLanguage,streetAddress,l,st,c 
  by self write
  by * break

사용자가 "프로필"필드를 편집 할 수 있습니다

그것은 사용자가 같은 자신의 권한에 영향을 줄 수있는 해당 속성 중 하나를 변경할 수 없습니다 것이 중요합니다 manager, 또는 memberOf서버가 지원하는 경우.

to dn.children="dc=People,dc=example,dc=com"   
  attrs=uid,uidNumber,gidNumber,mail,telephoneNumber,mobile,departmentNumber,manager,
    title,initials,givenName,sn,displayName,cn,dateHired,dateTerminated,fax,middleName,
    organizationName,organizationalUnitName,pager,postalAddress,l,st,c 
  by * read

기본 연락처 정보를 누구나 볼 수 있도록하십시오.

— 브래드 메이스
소스