爲kafka開啓kerberos

主節點安裝

yum -y install krb5-server krb5-libs krb5-auth-dialog krb5-workstation

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]
 default_realm = HADOOP.COM
 dns_lookup_realm = false
 dns_lookup_kdc = false
 ticket_lifetime = 24h
 renew_lifetime = 7d
 forwardable = true
 rdns = false
# default_realm = EXAMPLE.COM
# default_ccache_name = KEYRING:persistent:%{uid}

[realms]
 HADOOP.COM = {
  kdc = bigdata-cdh01.kfk.com
  admin_server = bigdata-cdh01.kfk.com
 }

[domain_realm]
 .bigdata-cdh01.kfk.com = HADOOP.COM
 bigdata-cdh01.kfk.com = HADOOP.COM

cat /var/kerberos/krb5kdc/kadm5.acl

*/[email protected]  *

cat /var/kerberos/krb5kdc/kdc.conf

[kdcdefaults]
 kdc_ports = 88
 kdc_tcp_ports = 88

[realms]
 HADOOP.COM = {
  #master_key_type = aes256-cts
  max_renewable_life= 7d 0h 0m 0s
  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
 }

創建kerberos數據庫

kdb5_util create -r HADOOP.COM -s

創建kerberos管理賬號

將kerberos服務添加爲開機啓動

systemctl enable krb5kdc
systemctl enable kadmin
systemctl start krb5kdc
systemctl start kadmin

測試管理員賬號

爲節點安裝客戶端

yum -y install  krb5-libs krb5-auth-dialog krb5-workstation

在主節點上安裝額外的包

yum -y install openldap-clients

將krb5.conf文件拷貝到所有kerberos客戶端（批量拷貝）

#!/bin/bash
for i in `cat node.list`
do
 scp -r $2 $i:$3
done
sh scp.sh node.list /etc/krb5.conf /etc/

啓動kerberos

爲kafka開啓kerberos


krb5的一些命令

列出賬號          kadmin.local -q "listprincs"
刪除賬號          kadmin.local -q 'delete_principal hdfs/[email protected]'
創建賬號指定密碼  kadmin.local -q "addprinc  hdfs/bigdata-cdh01.kfk.com@[email protected]" 
隨機生成密碼      kadmin.local -q "addprinc  -randkey  hdfs/[email protected]"  
導出票據          kadmin.local -q "xst -k hdfs.keytab hdfs/[email protected]"
登錄              kinit -k -t hdfs.keytab hdfs/[email protected]
查看過期時間      kadmin.local -q 'getprinc  krbtgt/[email protected]'
修改時間          kadmin.local -q 'modprinc -maxrenewlife "7d" krbtgt/[email protected]'
查看keytab內容    klist -e -k -t  zookeeper.keytab
不修改密碼導出    kadmin.local -q 'xst -k hdfs.keytab -norandkey hdfs/[email protected]'
退出登錄          kdestroy