在Ambari上添加Kerberos_ambari 部署 kerberos

一、准备阶段
1.下载jce并解压
jce下载地址： http://www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html
百度云链接：https://pan.baidu.com/s/1QKQSHLU83xUKBYiRCCgHlg?pwd=cqrd
提取码：cqrd

[root@manager ~]# ls
jce_policy-8.zip
[root@manager ~]# unzip -o -j -q jce_policy-8.zip -d /usr/local/jdk/jre/lib/security/
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2.安装krb5

[root@manager ~]# yum install -y krb5-libs krb5-workstation
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3.修改配置文件

[root@manager ~]# cat /etc/krb5.conf
# Configuration snippets may be placed in this directory as well
includedir /etc/krb5.conf.d/

[logging]
 default = FILE:/var/log/krb5libs.log
 kdc = FILE:/var/log/krb5kdc.log
 admin_server = FILE:/var/log/kadmind.log

[libdefaults]
 dns_lookup_realm = false
 ticket_lifetime = 24h
 renew_lifetime = 7d
 forwardable = true
 rdns = false
 default_realm = KRB.COM #修改为认证域
 default_ccache_name = KEYRING:persistent:%{uid}

[realms]
 KRB.COM = {
  kdc = 192.168.10.131 #KDC的地址
  admin_server = 192.168.10.131 #kadmin服务地址
 }

[domain_realm]
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#以上需要在服务端和客户端都配置，可以在服务端配置好以后使用scp拷贝。

4.在服务端安装krb5-server

[root@manager ~]# yum install -y krb5-server
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5.修改服务端的配置文件

[root@manager ~]# cat /var/kerberos/krb5kdc/kdc.conf 
[kdcdefaults]
 kdc_ports = 88
 kdc_tcp_ports = 88

[realms]
 KRB.COM = {
  #master_key_type = aes256-cts
  acl_file = /var/kerberos/krb5kdc/kadm5.acl
  dict_file = /usr/share/dict/words
  admin_keytab = /var/kerberos/krb5kdc/kadm5.keytab
  supported_enctypes = aes256-cts:normal aes128-cts:normal des3-hmac-sha1:normal arcfour-hmac:normal camellia256-cts:normal camellia128-cts:normal des-hmac-sha1:normal des-cbc-md5:normal des-cbc-crc:normal
 }
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二、配置阶段
1.创建kerberos数据库

[root@manager ~]# kdb5_util create -s -r KRB.COM
Loading random data
Initializing database '/var/kerberos/krb5kdc/principal' for realm 'KRB.COM',
master key name 'K/M@KRB.COM'
You will be prompted for the database Master Password.
It is important that you NOT FORGET this password.
Enter KDC database master key: 
Re-enter KDC database master key to verify: 
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2.创建管理员

[root@manager ~]# kadmin.local -q "addprinc admin/admin"
Authenticating as principal root/admin@KRB.COM with password.
WARNING: no policy specified for admin/admin@KRB.COM; defaulting to no policy
Enter password for principal "admin/admin@KRB.COM": 
Re-enter password for principal "admin/admin@KRB.COM": 
Principal "admin/admin@KRB.COM" created.
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3.给管理员账户添加acl权限

[root@manager ~]# cat /var/kerberos/krb5kdc/kadm5.acl 
*/admin@KRB.COM	*
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4.启动服务和设置开机自启

[root@manager ~]# systemctl start krb5kdc
[root@manager ~]# systemctl start kadmin
[root@manager ~]# systemctl enable krb5kdc
[root@manager ~]# systemctl enable kadmin
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5.在客户端测试连接

[root@vm1 ~]# kadmin -p admin/admin
Authenticating as principal admin/admin with password.
Password for admin/admin@KRB.COM: 
kadmin:  listprincs 
K/M@KRB.COM
admin/admin@KRB.COM
kadmin/admin@KRB.COM
kadmin/changepw@KRB.COM
kadmin/manager@KRB.COM
kiprop/manager@KRB.COM
krbtgt/KRB.COM@KRB.COM
kadmin:  quit
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6.重新启动ambari-server

[root@manager ~]# ambari-server restart
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三、 在Ambari上添加kerberos
1.开启Kerberos

2.选择MIT

3.输入KDC和Kadmin相关信息

4.安装和测试

5.配置文件设置

6.等待停止其他服务

7.添加完成

8.等待开启服务

9.完成

10、新增用户（add_principal USER）
使用默认配置

sudo kadmin.local
kadmin.local:  add_principal futeng # 新增 futeng 用户
WARNING: no policy specified for futeng@MYREALM; defaulting to no policy
Enter password for principal "futeng@MYREALM": # 输入密码
Re-enter password for principal "futeng@MYREALM":# 确认密码
Principal "futeng@MYREALM" created.
kadmin.local:  quit # 退出

# 测试
$ kinit futeng
Password for futeng@MYREALM: # 输入密码
$ klist 
Ticket cache: FILE:/tmp/krb5cc_1000 # 登录成功
Default principal: futeng@MYREALM

Valid starting     Expires            Service principal
09/07/20 17:14:45  09/08/20 17:14:45  krbtgt/MYREALM@MYREALM
	renew until 09/14/20 17:14:45
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生成 keytab（ktadd）

$ sudo kadmin.local
kadmin.local:  ktadd -k /tmp/futeng.keytab futeng
Entry for principal futeng with kvno 4, encryption type des3-cbc-sha1 added to keytab WRFILE:/tmp/futeng.keytab.
Entry for principal futeng with kvno 4, encryption type arcfour-hmac added to keytab WRFILE:/tmp/futeng.keytab.
Entry for principal futeng with kvno 4, encryption type des-hmac-sha1 added to keytab WRFILE:/tmp/futeng.keytab.
Entry for principal futeng with kvno 4, encryption type des-cbc-md5 added to keytab 
kadmin.local:  xst -norandkey -k /home/chen/cwd.keytab futeng
#注意：在生成keytab文件时需要加参数”-norandkey”，否则会导致直接使用kinit test@HADOOP.COM初始化时会提示密码错误。
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使用keytab登录

[root@ /etc/security/keytabs]# kinit -kt /root/futeng.keytab futeng
[root@ /etc/security/keytabs]# klist
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: futeng@KRB.COM

Valid starting       Expires              Service principal
11/01/2022 16:53:28  11/02/2022 16:53:28  krbtgt/KRB.COM@KRB.COM
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删除用户（delete_principal）

$ sudo kadmin.local
kadmin.local:  delete_principal futeng
Are you sure you want to delete the principal "futeng@MYREALM"? (yes/no): yes
Principal "futeng@MYREALM" deleted.
Make sure that you have removed this principal from all ACLs before reusing.
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在Ambari上添加Kerberos
https://blog.51cto.com/lullaby/2053660