1.ldap網絡賬號
ldap目錄服務認證，和windows活動目錄類似，就是記錄數據的一種方式
2.ldap客戶端安裝的軟件
yum sssd krb5-workstation -y
3.開啓ldap用戶認證
authconfig-tui
┌────────────────┤ Authentication Configuration ├─────────────────┐
│ │
│ User Information Authentication │
│ [ ] Cache Information [ ] Use MD5 Passwords │
│ [] Use LDAP [] Use Shadow Passwords │
│ [ ] Use NIS [ ] Use LDAP Authentication │
│ [ ] Use IPAv2 [*] Use Kerberos │
│ [ ] Use Winbind [ ] Use Fingerprint reader │
│ [ ] Use Winbind Authentication │
│ [*] Local authorization is sufficient │
│ │
│ ┌────────┐ ┌──────┐ │
│ │ Cancel │ │ Next │ │
│ └────────┘ └──────┘ │
│ │
│ │
└─────────────────────────────────────────────────────────────────┘
┌─────────────────┤ LDAP Settings ├─────────────────┐
│ │
│ [*] Use TLS │
│ Server: ldap://classroom.example.com/_ │
│ Base DN: dc=example,dc=com_______________________ │
│ │
│ ┌──────┐ ┌──────┐ │
│ │ Back │ │ Next │ │
│ └──────┘ └──────┘ │
│ │
│ │
└───────────────────────────────────────────────────┘
┌─────────────────┤ Kerberos Settings ├──────────────────┐
│ │
│ Realm: EXAMPLE.COM_____________________________ │
│ KDC: classroom.example.com___________________ │
│ Admin Server: classroom.example.com___________________ │
│ [ ] Use DNS to resolve hosts to realms │
│ [ ] Use DNS to locate KDCs for realms │
│ │
│ ┌──────┐ ┌────┐ │
│ │ Back │ │ Ok │ │
│ └──────┘ └────┘ │
│ │
│ │
└────────────────────────────────────────────────────────┘
出現以下報錯時:
┌────────────────┤ 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. │
│ │
│ ┌────┐ │
│ │ Ok │ │
│ └────┘ │
│ │
│ │
└────────────────────────────────────────────┘
因爲tls的證書缺失,需要到服務器端下載所需要的證書到/etc/openldap/cacerts
命令:
wget http://172.25.254.254/pub/example-ca.crt
測試:
getent passwd ldapuser1
如果用戶信息可以正常顯示,證明客戶端認成功.
列出所有用戶
vim /etc/sssd/sssd.conf
enumerate = True
systemctl restart sssd
4.自動掛載用戶家目錄
yum install autofs -y
vim /etc/autofs.master
/home/guests /etc/auto.ldap
vim /etc/auto.ldap
ldapuser1 172.25.254.254:/home/guests/ldapuser1
systemctl restart autofs
systemctl enable autofs