LDAP的搭建也是分为单模式配置，或者主从模式的配置，也有主主模式的配置
一、关闭服务器防火墙
systemctl stop firewalld.service
systemctl disable firewalld.service
firewall-cmd --state
二、OpenLDAP安装
2.1 安装ldap：
yum install -y openldap openldap-*
启动：
systemctl start slapd
systemctl enable slapd
查看安装的ldap服务：
查看OpenLDAP版本;
查看ldap启动状态
[root@cloud01-ops-tools-01 ~]# systemctl status slapd
● slapd.service - OpenLDAP Server Daemon
Loaded: loaded (/usr/lib/systemd/system/slapd.service; disabled; vendor preset: disabled)
Active: active (running) since Mon 2019-03-18 00:15:46 CST; 9h ago
Docs: man:slapd
man:slapd-config
man:slapd-hdb
man:slapd-mdb
file:///usr/share/doc/openldap-servers/guide.html
Process: 24933 ExecStart=/usr/sbin/slapd -u ldap -h ${SLAPD_URLS} $SLAPD_OPTIONS (code=exited, status=0/SUCCESS)
Process: 24899 ExecStartPre=/usr/libexec/openldap/check-config.sh (code=exited, status=0/SUCCESS)
Main PID: 24935 (slapd)
Memory: 9.8M
CGroup: /system.slice/slapd.service
└─24935 /usr/sbin/slapd -u ldap -h ldapi:/// ldap:///
Mar 18 00:26:27 cloud01-ops-tools-01 slapd[24935]: conn=1001 op=6 SRCH base="c=cn" scope=1 deref=0 filter="(objectClass=*)"
Mar 18 00:26:27 cloud01-ops-tools-01 slapd[24935]: conn=1001 op=6 SRCH attr=objectclass
Mar 18 00:26:27 cloud01-ops-tools-01 slapd[24935]: conn=1001 op=6 SEARCH RESULT tag=101 err=0 nentries=2 text=
Mar 18 00:26:29 cloud01-ops-tools-01 slapd[24935]: conn=1001 op=7 SRCH base="ou=People,c=cn" scope=1 deref=0 filter="(objectClass=*)"
Mar 18 00:26:29 cloud01-ops-tools-01 slapd[24935]: conn=1001 op=7 SRCH attr=objectclass
Mar 18 00:26:29 cloud01-ops-tools-01 slapd[24935]: conn=1001 op=7 SEARCH RESULT tag=101 err=0 nentries=0 text=
Mar 18 00:26:56 cloud01-ops-tools-01 slapd[24935]: conn=1001 op=8 SRCH base="cn=Manager,c=cn" scope=1 deref=0 filter="(objectClass=*)"
Mar 18 00:26:56 cloud01-ops-tools-01 slapd[24935]: conn=1001 op=8 SRCH attr=objectclass
Mar 18 00:26:56 cloud01-ops-tools-01 slapd[24935]: conn=1001 op=8 SEARCH RESULT tag=101 err=0 nentries=0 text=
Mar 18 02:38:14 cloud01-ops-tools-01 slapd[24935]: conn=1001 fd=11 closed (connection lost)
查看openldap默认监听的389端口（centos7最小化安装默认没有netstat命令，需安装）
[root@openldap-master ~]# yum install net-tools -y
[root@openldap-master ~]# netstat -antup| grep 389
tcp 0 0 0.0.0.0:389 0.0.0.0:* LISTEN 26195/slapd
tcp6 0 0 :::389 :::* LISTEN 26195/slapd
温馨提示： 本案例测试时，已关闭了iptables防火墙。如果开启了iptables，则需要开放389端口
[root@openldap-master ~]# firewall-cmd --zone=public --add-port=389/tcp --permanent
[root@openldap-master ~]# firewall-cmd --reload
======================================
配置OpenLDAP数据库
[root@cloud01-ops-tools-01 openldap-servers]# cp /usr/share/openldap-servers/DB_CONFIG.example /var/lib/ldap/DB_CONFIG
[root@cloud01-ops-tools-01 openldap-servers]# chown ldap:ldap -R /var/lib/ldap/
[root@cloud01-ops-tools-01 openldap-servers]# chmod 700 -R /var/lib/ldap
[root@cloud01-ops-tools-01 openldap-servers]# ll /var/lib/ldap/
total 348
-rwx------ 1 ldap ldap 2048 Mar 17 23:25 alock
-rwx------ 1 ldap ldap 286720 Mar 17 23:25 __db.001
-rwx------ 1 ldap ldap 32768 Mar 17 23:25 __db.002
-rwx------ 1 ldap ldap 49152 Mar 17 23:25 __db.003
-rwx------ 1 ldap ldap 845 Mar 17 23:28 DB_CONFIG
-rwx------ 1 ldap ldap 8192 Mar 17 23:25 dn2id.bdb
-rwx------ 1 ldap ldap 32768 Mar 17 23:25 id2entry.bdb
-rwx------ 1 ldap ldap 10485760 Mar 17 23:25 log.0000000001
配置ldap服务 设置OpenLDAP的管理员密码（这里密码为：123456）
[root@cloud01-ops-tools-01 openldap-servers]# slappasswd
New password:
Re-enter new password:
{SSHA}ago8nKNyfjhYa/btKgHDIpyEPxSBZrMm
然后进入要保存配置文件的目录，我的目录是/opt
编辑chrootpw.ldif文件
[root@openldap-master ~]# cd /opt/
[root@openldap-master opt]# vim chrootpw.ldif
# specify the password generated above for "olcRootPW" section
dn: olcDatabase={0}config,cn=config
changetype: modify
add: olcRootPW
olcRootPW: {SSHA}ago8nKNyfjhYa/btKgHDIpyEPxSBZrMm # 这里是存放你的上面生成的密码
导入chrootpw.ldif
[root@cloud01-ops-tools-01 opt]# ldapadd -Y EXTERNAL -H ldapi:/// -f chrootpw.ldif
SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
modifying entry "olcDatabase={0}config,cn=config"
=============================================================
温馨提示： 如果上面的命令出现下面报错：
[root@openldap-master opt]# ldapadd -Y EXTERNAL -H ldapi:/// -f chrootpw.ldif
SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
modifying entry "olcDatabase={0}config,cn=config"
ldap_modify: Inappropriate matching (18)
additional info: modify/add: olcRootPW: no equality matching rule
解决办法： 修改modify.ldif中对应选项的"add"为"replace"即可
即：
root@openldap-master opt]# cat chrootpw.ldif
# specify the password generated above for "olcRootPW" section
dn: olcDatabase={0}config,cn=config
changetype: modify
replace: olcRootPW
olcRootPW: {SSHA}ago8nKNyfjhYa/btKgHDIpyEPxSBZrMm
然后再次执行：
[root@openldap-master opt]# ldapadd -Y EXTERNAL -H ldapi:/// -f chrootpw.ldif
SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
modifying entry "olcDatabase={0}config,cn=config"
导入基本模式：
[root@openldap-master opt]# vim ldapaddBaseSchema.sh
#!/bin/bash
ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/openldap/schema/cosine.ldif
ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/openldap/schema/nis.ldif
ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/openldap/schema/inetorgperson.ldif
执行上面脚本：
[root@openldap-master opt]# chmod 755 ldapaddBaseSchema.sh
[root@openldap-master opt]# sh -x ldapaddBaseSchema.sh
+ ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/openldap/schema/cosine.ldif
SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
adding new entry "cn=cosine,cn=schema,cn=config"
+ ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/openldap/schema/nis.ldif
SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
adding new entry "cn=nis,cn=schema,cn=config"
+ ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/openldap/schema/inetorgperson.ldif
SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
adding new entry "cn=inetorgperson,cn=schema,cn=config"
========================================================
温馨提示： 如果上面的命令出现下面报错：
......
ldap_add: Other (e.g., implementation specific) error (80)
additional info: olcAttributeTypes: Duplicate attributeType: "2.16.840.1.113730.3.1.1"
原因是：
LDIF已经加载，所以尝试再次加载它们就报错这些信息，忽略这个步骤即可。
\=======================================================
接着在ldap服务的DB中设置域名，即编辑chdomain.ldif文件
# replace to your own domain name for "dc=***,dc=***" section
# specify the password generated above for "olcRootPW" section
dn: olcDatabase={1}monitor,cn=config
changetype: modify
replace: olcAccess
olcAccess: {0}to * by dn.base="gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth"
read by dn.base="cn=Manager,c=cn" read by * none
dn: olcDatabase={2}hdb,cn=config
changetype: modify
replace: olcSuffix
olcSuffix: c=cn
dn: olcDatabase={2}hdb,cn=config
changetype: modify
replace: olcRootDN
olcRootDN: cn=Manager,c=cn
dn: olcDatabase={2}hdb,cn=config
changetype: modify
replace: olcRootPW
olcRootPW: {SSHA}ago8nKNyfjhYa/btKgHDIpyEPxSBZrMm # 你上面生成的密码密钥
dn: olcDatabase={2}hdb,cn=config
changetype: modify
replace: olcAccess
olcAccess: {0}to attrs=userPassword,shadowLastChange by
dn="cn=Manager,c=cn" write by anonymous auth by self write by * none
olcAccess: {1}to dn.base="" by * read
olcAccess: {2}to * by dn="cn=Manager,c=cn" write by * read
导入chdomain.ldif文件
[root@cloud01-ops-tools-01 opt]# ldapmodify -Y EXTERNAL -H ldapi:/// -f chdomain.ldif
SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
modifying entry "olcDatabase={1}monitor,cn=config"
modifying entry "olcDatabase={2}hdb,cn=config"
modifying entry "olcDatabase={2}hdb,cn=config"
modifying entry "olcDatabase={2}hdb,cn=config"
modifying entry "olcDatabase={2}hdb,cn=config"
=============================================================
温馨提示： 如果上面的命令出现下面报错： .......
.......
ldap_modify: Inappropriate matching (18)
additional info: modify/add: olcRootPW: no equality matching rule
解决办法：将chdomain.ldif文件中的"add"全部替换成"replace"，然后重新执行上面命令即可！
============================================================
导入管理员基础数据
#vim rootdn.ldif
dn: c=cn
objectclass: country
c: cn
dn: cn=Manager,c=cn
objectclass: organizationalRole
cn: Manager
执行下面命令，输入上面设置的密码：123456 （就是输入你上面设置的密码）
[root@openldap-master opt]# ldapadd -x -D cn=Manager,c=cn -W -f rootdn.ldif
Enter LDAP Password:
adding new entry "c=cn"
adding new entry "cn=Manager,c=cn"
开启日志配置 查看OpenLDAP的日志级别，日志主要用于对OpenLDAP排查
[root@openldap-master opt]# slapd -d ?
Installed log subsystems:
Any (-1, 0xffffffff)
Trace (1, 0x1)
Packets (2, 0x2)
Args (4, 0x4)
Conns (8, 0x8)
BER (16, 0x10)
Filter (32, 0x20)
Config (64, 0x40)
ACL (128, 0x80)
Stats (256, 0x100)
Stats2 (512, 0x200)
Shell (1024, 0x400)
Parse (2048, 0x800)
Sync (16384, 0x4000)
None (32768, 0x8000)
NOTE: custom log subsystems may be later installed by specific code
编辑logLevel.ldif文件:
[root@openldap-master opt]# vim logLevel.ldif
[root@openldap-master opt]# cat logLevel.ldif
dn: cn=config
changetype: modify
replace: olcLogLevel
olcLogLevel: stats
导入logLevel.ldif
root@openldap-master opt]# ldapmodify -Y EXTERNAL -H ldapi:/// -f logLevel.ldif
SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
modifying entry "cn=config"
创建slapd.log文件；
日志文件;
[root@openldap-master opt]# touch /var/log/slapd.log
[root@openldap-master opt]# vim /etc/rsyslog.conf +73 #"+73"表示指定位到文件73行
.......
local4.* /var/log/slapd.log
重启系统日志服务与ldap服务:
root@openldap-master opt]# systemctl restart rsyslog
[root@openldap-master opt]# systemctl restart slapd
[root@openldap-master opt]# systemctl status slapd
[root@openldap-master opt]# tail -f /var/log/slapd.log
May 17 18:24:38 openldap-master slapd[26195]: daemon: shutdown requested and initiated.
May 17 18:24:38 openldap-master slapd[26195]: slapd shutdown: waiting for 0 operations/tasks to finish
May 17 18:24:38 openldap-master slapd[26195]: slapd stopped.
May 17 18:24:38 openldap-master slapd[26399]: @(#) $OpenLDAP: slapd 2.4.44 (Apr 12 2018 19:17:38) $#012#011mockbuild@x86-01.bsys.centos.org:/builddir/build/BUILD/openldap-2.4.44/openldap-2.4.44/servers/slapd
May 17 18:24:39 openldap-master slapd[26402]: slapd starting
ldapadmin连接配置
然后下载ldapadmin就可以进行连接了
ldapadmin：http://www.ldapadmin.org/download/ldapadmin.html
然后打开你的连接设置
名字就是你的管理员配置的时候设置的：
cn=Manager,c=cn密码就是123456