Linux--RH134---unit 8 ldap网络帐号

ldap网络帐号
1.ldap是什么
ldap目录服务认证，和windows活动目录类似，就是记录数据的一种方式
  LDAP 客户端配置的主要元素
  1)服务器的完全限定主机名
  2)基础 DN , 用于搜索用户定义
  3)认证机构 (“ CA” )证书 , 用于签署 LDAP 服务器的 SSL 证书
2.ldap客户端所须软件
yum sssd krb5-workstation -y

3.如何开启ldap用户认证
authconfig-tui
  

                   
<当出现以下报错时>

Warning

To connect to a LDAP server with TLS   

protocol enabled you need a CA certificate
which signed your server's certificate.   
Copy the certificate in the PEM format to 

the '/etc/openldap/cacerts' directory.    
Then press OK.                            
                                                                                                                          
是因为tls的证书缺失，需要到服务器端下载所需要的证书到/etc/openldap/cacerts，
用到的命令
wget http://172.25.254.254/pub/example-ca.crt

<检测 ldap 认证用户>
getent passwd ldapuser1
如果用户信息可以正常显示，证明客户端认成功。

id ldapuser1


[[email protected] mnt]# yum clean all
[[email protected] mnt]# vim auth-config.sh
  1 #!/bin/bash
  2 echo "installpackages..."
  3 yum install sssd krb5-workstation -y&> /dev/null
  4 echo "configauthconfig..."
  5 authconfig \
  6 --enableldap \
  7 --enablekrb5 \
  8 --disableldapauth \
  9 --enableldaptls \
 10--ldapserver="classroom.example.com" \
 11--ldapbasedn="dc=example,dc=com" \
 12--ldaploadcacert=http://172.25.254.254/pub/example-ca.crt \
 13 --krb5realm="EXAMPLE.COM"\
 14 --krb5kdc="classroom.example.com"\
 15--krb5adminserver="classroom.example.com" \
 16 --update
 17 echo "ok！！"

[[email protected] mnt]# sh auth-config.sh
[[email protected] mnt]# id ldapuser1
uid=1701(ldapuser1) gid=1701(ldapuser1) groups=1701(ldapuser1)

4.自动挂载用户家目录
yum install autofs -y
vim /etc/autofs.master
/home/guests    /etc/auto.ldap

vim /etc/auto.ldap
*       172.25.254.254:/home/guests/&

systemctl restart autofs    


#!/bin/bash
echo "install packages..."
yum install sssd krb5-workstation autofs -y &> /dev/null
echo "config authconfig..."
authconfig \
--enableldap \
--enablekrb5 \
--disableldapauth \
--enableldaptls \
--ldapserver="classroom.example.com" \
--ldapbasedn="dc=example,dc=com" \
--ldaploadcacert=http://172.25.254.254/pub/example-ca.crt \
--krb5realm="EXAMPLE.COM" \
--krb5kdc="classroom.example.com" \
--krb5adminserver="classroom.example.com" \
--update
echo "config autofs..."
echo "/home/guests /etc/auto.ldap" >>/etc/auto.master
echo "* 172.25.254.254:/home/guests/&">>/etc/auto.ldap
systemctl restart autofs
echo "ok！！"