CDH构建大数据平台-Kerberos高可用部署【完结篇】
CDH构建大数据平台-Kerberos高可用部署【完结篇】
作者：尹正杰
版权声明：原创作品，谢绝转载！否则将追究法律责任。
一.安装Kerberos相关的软件包并同步配置文件
1>.实验环境说明
[root@node101.yinzhengjie.org.cn ~]# cat /etc/redhat-release CentOS Linux release 7.6.1810 (Core) [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# free -h total used free shared buff/cache available Mem: 3.9G 265M 3.3G 9.5M 368M 3.4G Swap: 2.0G 0B 2.0G [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# uname -r 3.10.0-957.el7.x86_64 [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# uname -m x86_64 [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# cat /etc/hosts #主KDC服务器 172.30.1.101 node101.yinzhengjie.org.cn node101 #备KDC服务器 172.30.1.102 node102.yinzhengjie.org.cn node102 #其他主机，即Kerberos客户端 172.30.1.103 node103.yinzhengjie.org.cn node103 172.30.1.110 node110.yinzhengjie.org.cn node110 [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]#
2>.在主KDC服务器上安装所需的Kerberos软件包并修改相应的配置文件
[root@node101.yinzhengjie.org.cn ~]# yum -y install krb5-server krb5-auth-dialog krb5-workstation krb5-devel krb5-libs Loaded plugins: fastestmirror Determining fastest mirrors * base: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com base | 3.6 kB 00:00:00 extras | 3.4 kB 00:00:00 mysql-connectors-community | 2.5 kB 00:00:00 mysql-tools-community | 2.5 kB 00:00:00 mysql56-community | 2.5 kB 00:00:00 updates | 3.4 kB 00:00:00 zabbix | 2.9 kB 00:00:00 zabbix-non-supported | 951 B 00:00:00 (1/4): extras/7/x86_64/primary_db | 201 kB 00:00:00 (2/4): mysql-connectors-community/x86_64/primary_db | 41 kB 00:00:00 (3/4): mysql-tools-community/x86_64/primary_db | 58 kB 00:00:00 (4/4): updates/7/x86_64/primary_db | 4.2 MB 00:00:02 No package krb5-auth-dialog available. Resolving Dependencies --> Running transaction check ---> Package krb5-devel.x86_64 0:1.15.1-37.el7_6 will be installed --> Processing Dependency: libkadm5(x86-64) = 1.15.1-37.el7_6 for package: krb5-devel-1.15.1-37.el7_6.x86_64 --> Processing Dependency: libverto-devel for package: krb5-devel-1.15.1-37.el7_6.x86_64 --> Processing Dependency: libselinux-devel for package: krb5-devel-1.15.1-37.el7_6.x86_64 --> Processing Dependency: libcom_err-devel for package: krb5-devel-1.15.1-37.el7_6.x86_64 --> Processing Dependency: keyutils-libs-devel for package: krb5-devel-1.15.1-37.el7_6.x86_64 ---> Package krb5-libs.x86_64 0:1.15.1-34.el7 will be updated ---> Package krb5-libs.x86_64 0:1.15.1-37.el7_6 will be an update ---> Package krb5-server.x86_64 0:1.15.1-37.el7_6 will be installed updates/7/x86_64/filelists_db | 3.4 MB 00:00:01 --> Processing Dependency: libverto-module-base for package: krb5-server-1.15.1-37.el7_6.x86_64 --> Processing Dependency: /usr/share/dict/words for package: krb5-server-1.15.1-37.el7_6.x86_64 extras/7/x86_64/filelists_db | 243 kB 00:00:00 mysql-connectors-community/x86_64/filelists_db | 54 kB 00:00:00 mysql-tools-community/x86_64/filelists_db | 158 kB 00:00:00 mysql56-community/x86_64/filelists_db | 732 kB 00:00:36 zabbix/x86_64/filelists_db | 46 kB 00:00:00 zabbix-non-supported/x86_64/filelists | 660 B 00:00:00 ---> Package krb5-workstation.x86_64 0:1.15.1-37.el7_6 will be installed --> Running transaction check ---> Package keyutils-libs-devel.x86_64 0:1.5.8-3.el7 will be installed ---> Package libcom_err-devel.x86_64 0:1.42.9-13.el7 will be installed ---> Package libkadm5.x86_64 0:1.15.1-37.el7_6 will be installed ---> Package libselinux-devel.x86_64 0:2.5-14.1.el7 will be installed --> Processing Dependency: libsepol-devel(x86-64) >= 2.5-10 for package: libselinux-devel-2.5-14.1.el7.x86_64 --> Processing Dependency: pkgconfig(libsepol) for package: libselinux-devel-2.5-14.1.el7.x86_64 --> Processing Dependency: pkgconfig(libpcre) for package: libselinux-devel-2.5-14.1.el7.x86_64 ---> Package libverto-devel.x86_64 0:0.2.5-4.el7 will be installed ---> Package libverto-libevent.x86_64 0:0.2.5-4.el7 will be installed ---> Package words.noarch 0:3.0-22.el7 will be installed --> Running transaction check ---> Package libsepol-devel.x86_64 0:2.5-10.el7 will be installed ---> Package pcre-devel.x86_64 0:8.32-17.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved =================================================================================================================================================================================================================== Package Arch Version Repository Size =================================================================================================================================================================================================================== Installing: krb5-devel x86_64 1.15.1-37.el7_6 updates 271 k krb5-server x86_64 1.15.1-37.el7_6 updates 1.0 M krb5-workstation x86_64 1.15.1-37.el7_6 updates 816 k Updating: krb5-libs x86_64 1.15.1-37.el7_6 updates 803 k Installing for dependencies: keyutils-libs-devel x86_64 1.5.8-3.el7 base 37 k libcom_err-devel x86_64 1.42.9-13.el7 base 31 k libkadm5 x86_64 1.15.1-37.el7_6 updates 178 k libselinux-devel x86_64 2.5-14.1.el7 base 187 k libsepol-devel x86_64 2.5-10.el7 base 77 k libverto-devel x86_64 0.2.5-4.el7 base 12 k libverto-libevent x86_64 0.2.5-4.el7 base 8.9 k pcre-devel x86_64 8.32-17.el7 base 480 k words noarch 3.0-22.el7 base 1.4 M Transaction Summary =================================================================================================================================================================================================================== Install 3 Packages (+9 Dependent packages) Upgrade 1 Package Total download size: 5.2 M Downloading packages: Delta RPMs disabled because /usr/bin/applydeltarpm not installed. (1/13): keyutils-libs-devel-1.5.8-3.el7.x86_64.rpm | 37 kB 00:00:00 (2/13): krb5-devel-1.15.1-37.el7_6.x86_64.rpm | 271 kB 00:00:00 (3/13): krb5-libs-1.15.1-37.el7_6.x86_64.rpm | 803 kB 00:00:00 (4/13): libcom_err-devel-1.42.9-13.el7.x86_64.rpm | 31 kB 00:00:00 (5/13): krb5-server-1.15.1-37.el7_6.x86_64.rpm | 1.0 MB 00:00:01 (6/13): krb5-workstation-1.15.1-37.el7_6.x86_64.rpm | 816 kB 00:00:00 (7/13): libkadm5-1.15.1-37.el7_6.x86_64.rpm | 178 kB 00:00:00 (8/13): libsepol-devel-2.5-10.el7.x86_64.rpm | 77 kB 00:00:00 (9/13): libselinux-devel-2.5-14.1.el7.x86_64.rpm | 187 kB 00:00:00 (10/13): libverto-devel-0.2.5-4.el7.x86_64.rpm | 12 kB 00:00:00 (11/13): libverto-libevent-0.2.5-4.el7.x86_64.rpm | 8.9 kB 00:00:00 (12/13): pcre-devel-8.32-17.el7.x86_64.rpm | 480 kB 00:00:00 (13/13): words-3.0-22.el7.noarch.rpm | 1.4 MB 00:00:00 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 2.3 MB/s | 5.2 MB 00:00:02 Running transaction check Running transaction test Transaction test succeeded Running transaction Updating : krb5-libs-1.15.1-37.el7_6.x86_64 1/14 Installing : libkadm5-1.15.1-37.el7_6.x86_64 2/14 Installing : words-3.0-22.el7.noarch 3/14 Installing : libcom_err-devel-1.42.9-13.el7.x86_64 4/14 Installing : libsepol-devel-2.5-10.el7.x86_64 5/14 Installing : pcre-devel-8.32-17.el7.x86_64 6/14 Installing : libselinux-devel-2.5-14.1.el7.x86_64 7/14 Installing : libverto-libevent-0.2.5-4.el7.x86_64 8/14 Installing : libverto-devel-0.2.5-4.el7.x86_64 9/14 Installing : keyutils-libs-devel-1.5.8-3.el7.x86_64 10/14 Installing : krb5-devel-1.15.1-37.el7_6.x86_64 11/14 Installing : krb5-server-1.15.1-37.el7_6.x86_64 12/14 Installing : krb5-workstation-1.15.1-37.el7_6.x86_64 13/14 Cleanup : krb5-libs-1.15.1-34.el7.x86_64 14/14 Verifying : keyutils-libs-devel-1.5.8-3.el7.x86_64 1/14 Verifying : libverto-devel-0.2.5-4.el7.x86_64 2/14 Verifying : krb5-workstation-1.15.1-37.el7_6.x86_64 3/14 Verifying : krb5-libs-1.15.1-37.el7_6.x86_64 4/14 Verifying : libkadm5-1.15.1-37.el7_6.x86_64 5/14 Verifying : libverto-libevent-0.2.5-4.el7.x86_64 6/14 Verifying : pcre-devel-8.32-17.el7.x86_64 7/14 Verifying : libselinux-devel-2.5-14.1.el7.x86_64 8/14 Verifying : krb5-server-1.15.1-37.el7_6.x86_64 9/14 Verifying : libsepol-devel-2.5-10.el7.x86_64 10/14 Verifying : libcom_err-devel-1.42.9-13.el7.x86_64 11/14 Verifying : krb5-devel-1.15.1-37.el7_6.x86_64 12/14 Verifying : words-3.0-22.el7.noarch 13/14 Verifying : krb5-libs-1.15.1-34.el7.x86_64 14/14 Installed: krb5-devel.x86_64 0:1.15.1-37.el7_6 krb5-server.x86_64 0:1.15.1-37.el7_6 krb5-workstation.x86_64 0:1.15.1-37.el7_6 Dependency Installed: keyutils-libs-devel.x86_64 0:1.5.8-3.el7 libcom_err-devel.x86_64 0:1.42.9-13.el7 libkadm5.x86_64 0:1.15.1-37.el7_6 libselinux-devel.x86_64 0:2.5-14.1.el7 libsepol-devel.x86_64 0:2.5-10.el7 libverto-devel.x86_64 0:0.2.5-4.el7 libverto-libevent.x86_64 0:0.2.5-4.el7 pcre-devel.x86_64 0:8.32-17.el7 words.noarch 0:3.0-22.el7 Updated: krb5-libs.x86_64 0:1.15.1-37.el7_6 Complete! [root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# 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 = YINZHENGJIE.COM kdc_timeout = 2500 max_retries = 3 dns_lookup_realm = false dns_lookup_kdc = false ticket_lifetime = 10d renew_lifetime = 10d renewable = false forwardable = false [realms] YINZHENGJIE.COM = { kdc = node101.yinzhengjie.org.cn:88 kdc = node102.yinzhengjie.org.cn:88 admin_server = node101.yinzhengjie.org.cn:749 default_domain = YINZHENGJIE.COM } [domain_realm] .yinzhengjie.com = YINZHENGJIE.COM yinzhengjie.com = YINZHENGJIE.COM [kdc] profile = /var/kerberos/krb5kdc/kdc.conf [root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# cat /var/kerberos/krb5kdc/kdc.conf [kdcdefaults] kdc_ports = 88 kdc_tcp_ports = 88 [realms] YINZHENGJIE.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 des3-hmac-sha1:normal arcfour-hmac:normal des-hmac-sha1:normal des-cbc-md5:normal des-cbc-crc:normal max_life = 10d max_renewable_life = 10d } [root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# cat /var/kerberos/krb5kdc/kadm5.acl */admin@YINZHENGJIE.COM * [root@node101.yinzhengjie.org.cn ~]#
3>.在备KDC服务器上安装所需的Kerberos软件包并修改相应的配置文件
[root@node102.yinzhengjie.org.cn ~]# yum install -y krb5-server openldap-clients krb5-workstation krb5-libs Loaded plugins: fastestmirror Determining fastest mirrors * base: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com base | 3.6 kB 00:00:00 extras | 3.4 kB 00:00:00 updates | 3.4 kB 00:00:00 zabbix | 2.9 kB 00:00:00 zabbix-non-supported | 951 B 00:00:00 (1/2): extras/7/x86_64/primary_db | 201 kB 00:00:00 (2/2): updates/7/x86_64/primary_db | 4.2 MB 00:00:02 Resolving Dependencies --> Running transaction check ---> Package krb5-libs.x86_64 0:1.15.1-34.el7 will be updated ---> Package krb5-libs.x86_64 0:1.15.1-37.el7_6 will be an update ---> Package krb5-server.x86_64 0:1.15.1-37.el7_6 will be installed updates/7/x86_64/filelists_db | 3.4 MB 00:00:01 --> Processing Dependency: libkadm5(x86-64) = 1.15.1-37.el7_6 for package: krb5-server-1.15.1-37.el7_6.x86_64 --> Processing Dependency: libverto-module-base for package: krb5-server-1.15.1-37.el7_6.x86_64 --> Processing Dependency: libkadm5srv_mit.so.11(kadm5srv_mit_11_MIT)(64bit) for package: krb5-server-1.15.1-37.el7_6.x86_64 --> Processing Dependency: libkadm5clnt_mit.so.11(kadm5clnt_mit_11_MIT)(64bit) for package: krb5-server-1.15.1-37.el7_6.x86_64 --> Processing Dependency: /usr/share/dict/words for package: krb5-server-1.15.1-37.el7_6.x86_64 extras/7/x86_64/filelists_db | 243 kB 00:00:00 zabbix/x86_64/filelists_db | 46 kB 00:00:00 zabbix-non-supported/x86_64/filelists | 660 B 00:00:00 --> Processing Dependency: libkadm5srv_mit.so.11()(64bit) for package: krb5-server-1.15.1-37.el7_6.x86_64 --> Processing Dependency: libkadm5clnt_mit.so.11()(64bit) for package: krb5-server-1.15.1-37.el7_6.x86_64 ---> Package krb5-workstation.x86_64 0:1.15.1-37.el7_6 will be installed ---> Package openldap-clients.x86_64 0:2.4.44-21.el7_6 will be installed --> Processing Dependency: openldap(x86-64) = 2.4.44-21.el7_6 for package: openldap-clients-2.4.44-21.el7_6.x86_64 --> Running transaction check ---> Package libkadm5.x86_64 0:1.15.1-37.el7_6 will be installed ---> Package libverto-libevent.x86_64 0:0.2.5-4.el7 will be installed --> Processing Dependency: libevent-2.0.so.5()(64bit) for package: libverto-libevent-0.2.5-4.el7.x86_64 ---> Package openldap.x86_64 0:2.4.44-20.el7 will be updated ---> Package openldap.x86_64 0:2.4.44-21.el7_6 will be an update ---> Package words.noarch 0:3.0-22.el7 will be installed --> Running transaction check ---> Package libevent.x86_64 0:2.0.21-4.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved =================================================================================================================================================================================================================== Package Arch Version Repository Size =================================================================================================================================================================================================================== Installing: krb5-server x86_64 1.15.1-37.el7_6 updates 1.0 M krb5-workstation x86_64 1.15.1-37.el7_6 updates 816 k openldap-clients x86_64 2.4.44-21.el7_6 updates 190 k Updating: krb5-libs x86_64 1.15.1-37.el7_6 updates 803 k Installing for dependencies: libevent x86_64 2.0.21-4.el7 base 214 k libkadm5 x86_64 1.15.1-37.el7_6 updates 178 k libverto-libevent x86_64 0.2.5-4.el7 base 8.9 k words noarch 3.0-22.el7 base 1.4 M Updating for dependencies: openldap x86_64 2.4.44-21.el7_6 updates 356 k Transaction Summary =================================================================================================================================================================================================================== Install 3 Packages (+4 Dependent packages) Upgrade 1 Package (+1 Dependent package) Total download size: 4.9 M Downloading packages: Delta RPMs disabled because /usr/bin/applydeltarpm not installed. (1/9): krb5-libs-1.15.1-37.el7_6.x86_64.rpm | 803 kB 00:00:00 (2/9): libevent-2.0.21-4.el7.x86_64.rpm | 214 kB 00:00:00 (3/9): krb5-server-1.15.1-37.el7_6.x86_64.rpm | 1.0 MB 00:00:00 (4/9): libkadm5-1.15.1-37.el7_6.x86_64.rpm | 178 kB 00:00:00 (5/9): krb5-workstation-1.15.1-37.el7_6.x86_64.rpm | 816 kB 00:00:01 (6/9): openldap-clients-2.4.44-21.el7_6.x86_64.rpm | 190 kB 00:00:00 (7/9): openldap-2.4.44-21.el7_6.x86_64.rpm | 356 kB 00:00:00 (8/9): words-3.0-22.el7.noarch.rpm | 1.4 MB 00:00:00 (9/9): libverto-libevent-0.2.5-4.el7.x86_64.rpm | 8.9 kB 00:00:05 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 769 kB/s | 4.9 MB 00:00:06 Running transaction check Running transaction test Transaction test succeeded Running transaction Updating : krb5-libs-1.15.1-37.el7_6.x86_64 1/11 Installing : libkadm5-1.15.1-37.el7_6.x86_64 2/11 Installing : words-3.0-22.el7.noarch 3/11 Updating : openldap-2.4.44-21.el7_6.x86_64 4/11 Installing : libevent-2.0.21-4.el7.x86_64 5/11 Installing : libverto-libevent-0.2.5-4.el7.x86_64 6/11 Installing : krb5-server-1.15.1-37.el7_6.x86_64 7/11 Installing : openldap-clients-2.4.44-21.el7_6.x86_64 8/11 Installing : krb5-workstation-1.15.1-37.el7_6.x86_64 9/11 Cleanup : openldap-2.4.44-20.el7.x86_64 10/11 Cleanup : krb5-libs-1.15.1-34.el7.x86_64 11/11 Verifying : krb5-workstation-1.15.1-37.el7_6.x86_64 1/11 Verifying : krb5-libs-1.15.1-37.el7_6.x86_64 2/11 Verifying : libkadm5-1.15.1-37.el7_6.x86_64 3/11 Verifying : libevent-2.0.21-4.el7.x86_64 4/11 Verifying : libverto-libevent-0.2.5-4.el7.x86_64 5/11 Verifying : krb5-server-1.15.1-37.el7_6.x86_64 6/11 Verifying : openldap-2.4.44-21.el7_6.x86_64 7/11 Verifying : openldap-clients-2.4.44-21.el7_6.x86_64 8/11 Verifying : words-3.0-22.el7.noarch 9/11 Verifying : krb5-libs-1.15.1-34.el7.x86_64 10/11 Verifying : openldap-2.4.44-20.el7.x86_64 11/11 Installed: krb5-server.x86_64 0:1.15.1-37.el7_6 krb5-workstation.x86_64 0:1.15.1-37.el7_6 openldap-clients.x86_64 0:2.4.44-21.el7_6 Dependency Installed: libevent.x86_64 0:2.0.21-4.el7 libkadm5.x86_64 0:1.15.1-37.el7_6 libverto-libevent.x86_64 0:0.2.5-4.el7 words.noarch 0:3.0-22.el7 Updated: krb5-libs.x86_64 0:1.15.1-37.el7_6 Dependency Updated: openldap.x86_64 0:2.4.44-21.el7_6 Complete! [root@node102.yinzhengjie.org.cn ~]#
[root@node102.yinzhengjie.org.cn ~]# cat /var/kerberos/krb5kdc/kpropd.acl host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM [root@node102.yinzhengjie.org.cn ~]#
4>.初始化主KDC数据库并生成凭证（principal）,这步骤目的是为了生成“krb5.keytab”文件，下一步将其拷贝到备KDC上
[root@node101.yinzhengjie.org.cn ~]# kdb5_util create -r YINZHENGJIE.COM -s Loading random data Initializing database '/var/kerberos/krb5kdc/principal' for realm 'YINZHENGJIE.COM', master key name 'K/M@YINZHENGJIE.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: [root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# kadmin.local -q "ank -randkey host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM" Authenticating as principal root/admin@YINZHENGJIE.COM with password. WARNING: no policy specified for host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM; defaulting to no policy Principal "host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM" created. [root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# kadmin.local -q "ank -randkey host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM" Authenticating as principal root/admin@YINZHENGJIE.COM with password. WARNING: no policy specified for host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM; defaulting to no policy Principal "host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM" created. [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# kadmin.local -q "xst host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM" Authenticating as principal root/admin@YINZHENGJIE.COM with password. Entry for principal host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM with kvno 2, encryption type aes256-cts-hmac-sha1-96 added to keytab FILE:/etc/krb5.keytab. Entry for principal host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM with kvno 2, encryption type des3-cbc-sha1 added to keytab FILE:/etc/krb5.keytab. Entry for principal host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM with kvno 2, encryption type arcfour-hmac added to keytab FILE:/etc/krb5.keytab. Entry for principal host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM with kvno 2, encryption type des-hmac-sha1 added to keytab FILE:/etc/krb5.keytab. Entry for principal host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM with kvno 2, encryption type des-cbc-md5 added to keytab FILE:/etc/krb5.keytab. [root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# kadmin.local -q "xst host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM" Authenticating as principal root/admin@YINZHENGJIE.COM with password. Entry for principal host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM with kvno 2, encryption type aes256-cts-hmac-sha1-96 added to keytab FILE:/etc/krb5.keytab. Entry for principal host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM with kvno 2, encryption type des3-cbc-sha1 added to keytab FILE:/etc/krb5.keytab. Entry for principal host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM with kvno 2, encryption type arcfour-hmac added to keytab FILE:/etc/krb5.keytab. Entry for principal host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM with kvno 2, encryption type des-hmac-sha1 added to keytab FILE:/etc/krb5.keytab. Entry for principal host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM with kvno 2, encryption type des-cbc-md5 added to keytab FILE:/etc/krb5.keytab. [root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# klist -ket /etc/krb5.keytab Keytab name: FILE:/etc/krb5.keytab KVNO Timestamp Principal ---- ------------------- ------------------------------------------------------ 2 05/10/2019 11:35:33 host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM (aes256-cts-hmac-sha1-96) 2 05/10/2019 11:35:33 host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM (des3-cbc-sha1) 2 05/10/2019 11:35:33 host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM (arcfour-hmac) 2 05/10/2019 11:35:33 host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM (des-hmac-sha1) 2 05/10/2019 11:35:33 host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM (des-cbc-md5) 2 05/10/2019 11:35:43 host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM (aes256-cts-hmac-sha1-96) 2 05/10/2019 11:35:43 host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM (des3-cbc-sha1) 2 05/10/2019 11:35:43 host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM (arcfour-hmac) 2 05/10/2019 11:35:43 host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM (des-hmac-sha1) 2 05/10/2019 11:35:43 host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM (des-cbc-md5) [root@node101.yinzhengjie.org.cn ~]#
5>.将master节点的数据到slava节点上
[root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# scp /etc/krb5.conf node102.yinzhengjie.org.cn:/etc/ krb5.conf 100% 647 1.6MB/s 00:00 [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# scp /var/kerberos/krb5kdc/kdc.conf node102.yinzhengjie.org.cn:/var/kerberos/krb5kdc/ kdc.conf 100% 386 783.7KB/s 00:00 [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# scp /var/kerberos/krb5kdc/kadm5.acl node102.yinzhengjie.org.cn:/var/kerberos/krb5kdc/ kadm5.acl 100% 26 72.0KB/s 00:00 [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# scp /var/kerberos/krb5kdc/.k5.YINZHENGJIE.COM node102.yinzhengjie.org.cn:/var/kerberos/krb5kdc/ .k5.YINZHENGJIE.COM 100% 80 181.2KB/s 00:00 [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# scp /etc/krb5.keytab node102.yinzhengjie.org.cn:/etc/krb5.keytab krb5.keytab 100% 918 2.6MB/s 00:00 [root@node101.yinzhengjie.org.cn ~]#
6>.其他主机安装相应的服务，并将主KDC的
[root@node103.yinzhengjie.org.cn ~]# yum install -y krb5-workstation krb5-devel Loaded plugins: fastestmirror Determining fastest mirrors * base: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com base | 3.6 kB 00:00:00 extras | 3.4 kB 00:00:00 updates | 3.4 kB 00:00:00 zabbix | 2.9 kB 00:00:00 zabbix-non-supported | 951 B 00:00:00 (1/2): extras/7/x86_64/primary_db | 201 kB 00:00:00 (2/2): updates/7/x86_64/primary_db | 4.2 MB 00:00:02 Resolving Dependencies --> Running transaction check ---> Package krb5-devel.x86_64 0:1.15.1-37.el7_6 will be installed --> Processing Dependency: libkadm5(x86-64) = 1.15.1-37.el7_6 for package: krb5-devel-1.15.1-37.el7_6.x86_64 --> Processing Dependency: krb5-libs(x86-64) = 1.15.1-37.el7_6 for package: krb5-devel-1.15.1-37.el7_6.x86_64 --> Processing Dependency: libverto-devel for package: krb5-devel-1.15.1-37.el7_6.x86_64 --> Processing Dependency: libselinux-devel for package: krb5-devel-1.15.1-37.el7_6.x86_64 --> Processing Dependency: libcom_err-devel for package: krb5-devel-1.15.1-37.el7_6.x86_64 --> Processing Dependency: keyutils-libs-devel for package: krb5-devel-1.15.1-37.el7_6.x86_64 ---> Package krb5-workstation.x86_64 0:1.15.1-37.el7_6 will be installed --> Running transaction check ---> Package keyutils-libs-devel.x86_64 0:1.5.8-3.el7 will be installed ---> Package krb5-libs.x86_64 0:1.15.1-34.el7 will be updated ---> Package krb5-libs.x86_64 0:1.15.1-37.el7_6 will be an update ---> Package libcom_err-devel.x86_64 0:1.42.9-13.el7 will be installed ---> Package libkadm5.x86_64 0:1.15.1-37.el7_6 will be installed ---> Package libselinux-devel.x86_64 0:2.5-14.1.el7 will be installed --> Processing Dependency: libsepol-devel(x86-64) >= 2.5-10 for package: libselinux-devel-2.5-14.1.el7.x86_64 --> Processing Dependency: pkgconfig(libsepol) for package: libselinux-devel-2.5-14.1.el7.x86_64 --> Processing Dependency: pkgconfig(libpcre) for package: libselinux-devel-2.5-14.1.el7.x86_64 ---> Package libverto-devel.x86_64 0:0.2.5-4.el7 will be installed --> Running transaction check ---> Package libsepol-devel.x86_64 0:2.5-10.el7 will be installed ---> Package pcre-devel.x86_64 0:8.32-17.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved =================================================================================================================================================================================================================== Package Arch Version Repository Size =================================================================================================================================================================================================================== Installing: krb5-devel x86_64 1.15.1-37.el7_6 updates 271 k krb5-workstation x86_64 1.15.1-37.el7_6 updates 816 k Installing for dependencies: keyutils-libs-devel x86_64 1.5.8-3.el7 base 37 k libcom_err-devel x86_64 1.42.9-13.el7 base 31 k libkadm5 x86_64 1.15.1-37.el7_6 updates 178 k libselinux-devel x86_64 2.5-14.1.el7 base 187 k libsepol-devel x86_64 2.5-10.el7 base 77 k libverto-devel x86_64 0.2.5-4.el7 base 12 k pcre-devel x86_64 8.32-17.el7 base 480 k Updating for dependencies: krb5-libs x86_64 1.15.1-37.el7_6 updates 803 k Transaction Summary =================================================================================================================================================================================================================== Install 2 Packages (+7 Dependent packages) Upgrade ( 1 Dependent package) Total download size: 2.8 M Downloading packages: Delta RPMs disabled because /usr/bin/applydeltarpm not installed. (1/10): krb5-devel-1.15.1-37.el7_6.x86_64.rpm | 271 kB 00:00:00 (2/10): keyutils-libs-devel-1.5.8-3.el7.x86_64.rpm | 37 kB 00:00:00 (3/10): krb5-libs-1.15.1-37.el7_6.x86_64.rpm | 803 kB 00:00:00 (4/10): libkadm5-1.15.1-37.el7_6.x86_64.rpm | 178 kB 00:00:00 (5/10): krb5-workstation-1.15.1-37.el7_6.x86_64.rpm | 816 kB 00:00:00 (6/10): libselinux-devel-2.5-14.1.el7.x86_64.rpm | 187 kB 00:00:00 (7/10): libsepol-devel-2.5-10.el7.x86_64.rpm | 77 kB 00:00:00 (8/10): libverto-devel-0.2.5-4.el7.x86_64.rpm | 12 kB 00:00:00 (9/10): pcre-devel-8.32-17.el7.x86_64.rpm | 480 kB 00:00:00 (10/10): libcom_err-devel-1.42.9-13.el7.x86_64.rpm | 31 kB 00:00:05 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 487 kB/s | 2.8 MB 00:00:05 Running transaction check Running transaction test Transaction test succeeded Running transaction Updating : krb5-libs-1.15.1-37.el7_6.x86_64 1/11 Installing : libkadm5-1.15.1-37.el7_6.x86_64 2/11 Installing : libcom_err-devel-1.42.9-13.el7.x86_64 3/11 Installing : libsepol-devel-2.5-10.el7.x86_64 4/11 Installing : pcre-devel-8.32-17.el7.x86_64 5/11 Installing : libselinux-devel-2.5-14.1.el7.x86_64 6/11 Installing : libverto-devel-0.2.5-4.el7.x86_64 7/11 Installing : keyutils-libs-devel-1.5.8-3.el7.x86_64 8/11 Installing : krb5-devel-1.15.1-37.el7_6.x86_64 9/11 Installing : krb5-workstation-1.15.1-37.el7_6.x86_64 10/11 Cleanup : krb5-libs-1.15.1-34.el7.x86_64 11/11 Verifying : keyutils-libs-devel-1.5.8-3.el7.x86_64 1/11 Verifying : libverto-devel-0.2.5-4.el7.x86_64 2/11 Verifying : krb5-workstation-1.15.1-37.el7_6.x86_64 3/11 Verifying : krb5-libs-1.15.1-37.el7_6.x86_64 4/11 Verifying : libkadm5-1.15.1-37.el7_6.x86_64 5/11 Verifying : pcre-devel-8.32-17.el7.x86_64 6/11 Verifying : libselinux-devel-2.5-14.1.el7.x86_64 7/11 Verifying : libsepol-devel-2.5-10.el7.x86_64 8/11 Verifying : libcom_err-devel-1.42.9-13.el7.x86_64 9/11 Verifying : krb5-devel-1.15.1-37.el7_6.x86_64 10/11 Verifying : krb5-libs-1.15.1-34.el7.x86_64 11/11 Installed: krb5-devel.x86_64 0:1.15.1-37.el7_6 krb5-workstation.x86_64 0:1.15.1-37.el7_6 Dependency Installed: keyutils-libs-devel.x86_64 0:1.5.8-3.el7 libcom_err-devel.x86_64 0:1.42.9-13.el7 libkadm5.x86_64 0:1.15.1-37.el7_6 libselinux-devel.x86_64 0:2.5-14.1.el7 libsepol-devel.x86_64 0:2.5-10.el7 libverto-devel.x86_64 0:0.2.5-4.el7 pcre-devel.x86_64 0:8.32-17.el7 Dependency Updated: krb5-libs.x86_64 0:1.15.1-37.el7_6 Complete! [root@node103.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# scp /etc/krb5.conf node103.yinzhengjie.org.cn:/etc/krb5.conf krb5.conf 100% 765 1.7MB/s 00:00 [root@node101.yinzhengjie.org.cn ~]#
7>.备份配置文件（主备都需要）
待更新....
二.配置KDC的主从同步
1>.分别在主备KDC启动服务
[root@node101.yinzhengjie.org.cn ~]# systemctl start krb5kdc [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# systemctl status krb5kdc ● krb5kdc.service - Kerberos 5 KDC Loaded: loaded (/usr/lib/systemd/system/krb5kdc.service; disabled; vendor preset: disabled) Active: active (running) since Fri 2019-05-10 11:50:38 CST; 4s ago Process: 5609 ExecStart=/usr/sbin/krb5kdc -P /var/run/krb5kdc.pid $KRB5KDC_ARGS (code=exited, status=0/SUCCESS) Main PID: 5610 (krb5kdc) CGroup: /system.slice/krb5kdc.service └─5610 /usr/sbin/krb5kdc -P /var/run/krb5kdc.pid May 10 11:50:38 node101.yinzhengjie.org.cn systemd[1]: Starting Kerberos 5 KDC... May 10 11:50:38 node101.yinzhengjie.org.cn systemd[1]: Started Kerberos 5 KDC. [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# systemctl enable krb5kdc Created symlink from /etc/systemd/system/multi-user.target.wants/krb5kdc.service to /usr/lib/systemd/system/krb5kdc.service. [root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# systemctl start kadmin [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# systemctl status kadmin ● kadmin.service - Kerberos 5 Password-changing and Administration Loaded: loaded (/usr/lib/systemd/system/kadmin.service; disabled; vendor preset: disabled) Active: active (running) since Fri 2019-05-10 11:51:38 CST; 1s ago Process: 5652 ExecStart=/usr/sbin/_kadmind -P /var/run/kadmind.pid $KADMIND_ARGS (code=exited, status=0/SUCCESS) Main PID: 5653 (kadmind) CGroup: /system.slice/kadmin.service └─5653 /usr/sbin/kadmind -P /var/run/kadmind.pid May 10 11:51:38 node101.yinzhengjie.org.cn systemd[1]: Starting Kerberos 5 Password-changing and Administration... May 10 11:51:38 node101.yinzhengjie.org.cn systemd[1]: Started Kerberos 5 Password-changing and Administration. [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# systemctl enable kadmin Created symlink from /etc/systemd/system/multi-user.target.wants/kadmin.service to /usr/lib/systemd/system/kadmin.service. [root@node101.yinzhengjie.org.cn ~]#
[root@node102.yinzhengjie.org.cn ~]# systemctl start kprop [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# systemctl status kprop ● kprop.service - Kerberos 5 Propagation Loaded: loaded (/usr/lib/systemd/system/kprop.service; disabled; vendor preset: disabled) Active: active (running) since Fri 2019-05-10 11:52:35 CST; 1s ago Process: 4889 ExecStart=/usr/sbin/_kpropd $KPROPD_ARGS (code=exited, status=0/SUCCESS) Main PID: 4890 (kpropd) CGroup: /system.slice/kprop.service └─4890 /usr/sbin/kpropd May 10 11:52:35 node102.yinzhengjie.org.cn systemd[1]: Starting Kerberos 5 Propagation... May 10 11:52:35 node102.yinzhengjie.org.cn systemd[1]: Started Kerberos 5 Propagation. [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# systemctl enable kprop Created symlink from /etc/systemd/system/multi-user.target.wants/kprop.service to /usr/lib/systemd/system/kprop.service. [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]#
2>.将主KDC数据库同步到备KDC数据库中
[root@node101.yinzhengjie.org.cn ~]# kdb5_util dump /var/kerberos/krb5kdc/slave_datatrans [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# kprop -f /var/kerberos/krb5kdc/slave_datatrans node102.yinzhengjie.org.cn #如果该步骤出现问题（比如:“kprop: Key table entry not found while getting initial credentials”），请排查第一部分的第3，4步是否有出入，比如：主机名称是否对应？ Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED [root@node101.yinzhengjie.org.cn ~]#
温馨提示:
上面的操作是咱们手动将主KDC的凭据配置信息同步到备KDC中的，我们可以编写个脚本定期执行上述两天命令。
[root@node101.yinzhengjie.org.cn ~]# mkdir /var/kerberos/{shell,log} [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# vi /var/kerberos/shell/dump_principal.sh [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# chmod +x /var/kerberos/shell/dump_principal.sh [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# which kdb5_util /usr/sbin/kdb5_util [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# which kprop /usr/sbin/kprop [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# cat /var/kerberos/shell/dump_principal.sh #!/bin/bash #@author :yinzhengjie #blog:http://www.cnblogs.com/yinzhengjie #EMAIL:y1053419035@qq.com #Data:Thu Oct 18 11:26:06 CST 2018 /usr/sbin/kdb5_util dump /var/kerberos/krb5kdc/slave_datatrans /usr/sbin/kprop -f /var/kerberos/krb5kdc/slave_datatrans node102.yinzhengjie.org.cn [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# crontab -e no crontab for root - using an empty one crontab: installing new crontab [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# crontab -l * * * * * /bin/date >> /var/kerberos/log/dump.log 2>&1;/var/kerberos/shell/dump_principal.sh >> /var/kerberos/log/dump.log 2>&1 * * * * * sleep 10; /bin/date >> /var/kerberos/log/dump.log 2>&1; /var/kerberos/shell/dump_principal.sh >> /var/kerberos/log/dump.log 2>&1 * * * * * sleep 20; /bin/date >> /var/kerberos/log/dump.log 2>&1; /var/kerberos/shell/dump_principal.sh >> /var/kerberos/log/dump.log 2>&1 * * * * * sleep 30; /bin/date >> /var/kerberos/log/dump.log 2>&1; /var/kerberos/shell/dump_principal.sh >> /var/kerberos/log/dump.log 2>&1 * * * * * sleep 40; /bin/date >> /var/kerberos/log/dump.log 2>&1; /var/kerberos/shell/dump_principal.sh >> /var/kerberos/log/dump.log 2>&1 * * * * * sleep 50; /bin/date >> /var/kerberos/log/dump.log 2>&1; /var/kerberos/shell/dump_principal.sh >> /var/kerberos/log/dump.log 2>&1 [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# tail -100f /var/kerberos/log/dump.log Fri May 10 14:35:21 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:35:31 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:35:41 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:35:51 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:36:01 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:36:11 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:36:21 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:36:31 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:36:41 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:36:51 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED ^C [root@node101.yinzhengjie.org.cn ~]#
3>.启动备KDC服务
[root@node102.yinzhengjie.org.cn ~]# systemctl start krb5kdc [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# systemctl status krb5kdc ● krb5kdc.service - Kerberos 5 KDC Loaded: loaded (/usr/lib/systemd/system/krb5kdc.service; disabled; vendor preset: disabled) Active: active (running) since Fri 2019-05-10 12:14:52 CST; 1s ago Process: 5201 ExecStart=/usr/sbin/krb5kdc -P /var/run/krb5kdc.pid $KRB5KDC_ARGS (code=exited, status=0/SUCCESS) Main PID: 5202 (krb5kdc) CGroup: /system.slice/krb5kdc.service └─5202 /usr/sbin/krb5kdc -P /var/run/krb5kdc.pid May 10 12:14:52 node102.yinzhengjie.org.cn systemd[1]: Starting Kerberos 5 KDC... May 10 12:14:52 node102.yinzhengjie.org.cn systemd[1]: Started Kerberos 5 KDC. [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# systemctl enable krb5kdc Created symlink from /etc/systemd/system/multi-user.target.wants/krb5kdc.service to /usr/lib/systemd/system/krb5kdc.service. [root@node102.yinzhengjie.org.cn ~]#
4>.登陆kadmin.local命令行
root使用kadmin.local命令，kadmin.local可以直接进入并管理Kerberos数据库，无需通过Kerberos认证。
[root@node101.yinzhengjie.org.cn ~]# klist klist: No credentials cache found (filename: /tmp/krb5cc_0) [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# kadmin.local Authenticating as principal root/admin@YINZHENGJIE.COM with password. kadmin.local: kadmin.local: listprincs K/M@YINZHENGJIE.COM host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM kadmin/admin@YINZHENGJIE.COM kadmin/changepw@YINZHENGJIE.COM kadmin/node101.yinzhengjie.org.cn@YINZHENGJIE.COM kiprop/node101.yinzhengjie.org.cn@YINZHENGJIE.COM krbtgt/YINZHENGJIE.COM@YINZHENGJIE.COM kadmin.local: kadmin.local: quit [root@node101.yinzhengjie.org.cn ~]#
5>.使用kadmin.local添加管理员用户
可以直接使用“kadmin.local” 进入kadmin.local命令行，也可以直接使用“kadmin.local -q”指定要执行的语句。
[root@node101.yinzhengjie.org.cn ~]# kadmin.local -q "addprinc admin" Authenticating as principal root/admin@YINZHENGJIE.COM with password. WARNING: no policy specified for admin@YINZHENGJIE.COM; defaulting to no policy Enter password for principal "admin@YINZHENGJIE.COM": Re-enter password for principal "admin@YINZHENGJIE.COM": Principal "admin@YINZHENGJIE.COM" created. [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# kadmin.local -q "listprincs" Authenticating as principal root/admin@YINZHENGJIE.COM with password. K/M@YINZHENGJIE.COM admin@YINZHENGJIE.COM #这就是咱们添加的管理员用户，很明显，添加成功啦！ host/node101.yinzhengjie.org.cn@YINZHENGJIE.COM host/node102.yinzhengjie.org.cn@YINZHENGJIE.COM kadmin/admin@YINZHENGJIE.COM kadmin/changepw@YINZHENGJIE.COM kadmin/node101.yinzhengjie.org.cn@YINZHENGJIE.COM kiprop/node101.yinzhengjie.org.cn@YINZHENGJIE.COM krbtgt/YINZHENGJIE.COM@YINZHENGJIE.COM [root@node101.yinzhengjie.org.cn ~]#
三.验证Kerberos集群的可用性
1>.在kerberos客户端的进行登陆操作
[root@node103.yinzhengjie.org.cn ~]# klist klist: No credentials cache found (filename: /tmp/krb5cc_0) [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# kinit admin Password for admin@YINZHENGJIE.COM: #输入密码后回车，若无任何提示表示认证成功 [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# klist -e Ticket cache: FILE:/tmp/krb5cc_0 Default principal: admin@YINZHENGJIE.COM Valid starting Expires Service principal 05/10/2019 12:23:19 05/20/2019 12:23:19 krbtgt/YINZHENGJIE.COM@YINZHENGJIE.COM Etype (skey, tkt): aes256-cts-hmac-sha1-96, aes256-cts-hmac-sha1-96 [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# 上述参数说明 Tichet cache： ticket缓存存到了/tmp/krb5cc_0 Default principal： 认证的用户 valid starting： 认证开始时间 Expires： ticket生命节日日期 Service principal： 服务对应的principal renew until： ticket可以通过kinit -R进行延期的截止日期。 Etype： session key的编码类型
2>.查看主KDC的允许状态
[root@node101.yinzhengjie.org.cn ~]# systemctl status krb5kdc ● krb5kdc.service - Kerberos 5 KDC Loaded: loaded (/usr/lib/systemd/system/krb5kdc.service; enabled; vendor preset: disabled) Active: active (running) since Fri 2019-05-10 11:50:38 CST; 40min ago Main PID: 5610 (krb5kdc) CGroup: /system.slice/krb5kdc.service └─5610 /usr/sbin/krb5kdc -P /var/run/krb5kdc.pid May 10 11:50:38 node101.yinzhengjie.org.cn systemd[1]: Starting Kerberos 5 KDC... May 10 11:50:38 node101.yinzhengjie.org.cn systemd[1]: Started Kerberos 5 KDC. [root@node101.yinzhengjie.org.cn ~]#
3>.查看备KDC的运行状态
[root@node102.yinzhengjie.org.cn ~]# systemctl status krb5kdc ● krb5kdc.service - Kerberos 5 KDC Loaded: loaded (/usr/lib/systemd/system/krb5kdc.service; enabled; vendor preset: disabled) Active: active (running) since Fri 2019-05-10 12:14:52 CST; 16min ago Main PID: 5202 (krb5kdc) CGroup: /system.slice/krb5kdc.service └─5202 /usr/sbin/krb5kdc -P /var/run/krb5kdc.pid May 10 12:14:52 node102.yinzhengjie.org.cn systemd[1]: Starting Kerberos 5 KDC... May 10 12:14:52 node102.yinzhengjie.org.cn systemd[1]: Started Kerberos 5 KDC. [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]#
4>.停掉主KDC的进程，观察Kerberos客户端是否可用
[root@node101.yinzhengjie.org.cn ~]# systemctl status krb5kdc ● krb5kdc.service - Kerberos 5 KDC Loaded: loaded (/usr/lib/systemd/system/krb5kdc.service; enabled; vendor preset: disabled) Active: active (running) since Fri 2019-05-10 12:35:22 CST; 2s ago Process: 7857 ExecStart=/usr/sbin/krb5kdc -P /var/run/krb5kdc.pid $KRB5KDC_ARGS (code=exited, status=0/SUCCESS) Main PID: 7858 (krb5kdc) CGroup: /system.slice/krb5kdc.service └─7858 /usr/sbin/krb5kdc -P /var/run/krb5kdc.pid May 10 12:35:22 node101.yinzhengjie.org.cn systemd[1]: Starting Kerberos 5 KDC... May 10 12:35:22 node101.yinzhengjie.org.cn systemd[1]: Started Kerberos 5 KDC. [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# systemctl stop krb5kdc [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]# systemctl status krb5kdc ● krb5kdc.service - Kerberos 5 KDC Loaded: loaded (/usr/lib/systemd/system/krb5kdc.service; enabled; vendor preset: disabled) Active: inactive (dead) since Fri 2019-05-10 12:35:30 CST; 1s ago Process: 7857 ExecStart=/usr/sbin/krb5kdc -P /var/run/krb5kdc.pid $KRB5KDC_ARGS (code=exited, status=0/SUCCESS) Main PID: 7858 (code=exited, status=0/SUCCESS) May 10 12:35:22 node101.yinzhengjie.org.cn systemd[1]: Starting Kerberos 5 KDC... May 10 12:35:22 node101.yinzhengjie.org.cn systemd[1]: Started Kerberos 5 KDC. May 10 12:35:30 node101.yinzhengjie.org.cn systemd[1]: Stopping Kerberos 5 KDC... May 10 12:35:30 node101.yinzhengjie.org.cn systemd[1]: Stopped Kerberos 5 KDC. [root@node101.yinzhengjie.org.cn ~]# [root@node101.yinzhengjie.org.cn ~]#
[root@node103.yinzhengjie.org.cn ~]# klist -e Ticket cache: FILE:/tmp/krb5cc_0 Default principal: admin@YINZHENGJIE.COM Valid starting Expires Service principal 05/10/2019 12:23:19 05/20/2019 12:23:19 krbtgt/YINZHENGJIE.COM@YINZHENGJIE.COM Etype (skey, tkt): aes256-cts-hmac-sha1-96, aes256-cts-hmac-sha1-96 [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# kdestroy [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# klist klist: No credentials cache found (filename: /tmp/krb5cc_0) [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# kinit admin #当我们停掉主KDC后，发现服务依旧是可用的，这个时候他去链接从KDC服务器啦！ Password for admin@YINZHENGJIE.COM: [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# klist Ticket cache: FILE:/tmp/krb5cc_0 Default principal: admin@YINZHENGJIE.COM Valid starting Expires Service principal 05/10/2019 14:39:58 05/20/2019 14:39:58 krbtgt/YINZHENGJIE.COM@YINZHENGJIE.COM [root@node103.yinzhengjie.org.cn ~]#
[root@node102.yinzhengjie.org.cn ~]# systemctl status krb5kdc ● krb5kdc.service - Kerberos 5 KDC Loaded: loaded (/usr/lib/systemd/system/krb5kdc.service; enabled; vendor preset: disabled) Active: active (running) since Fri 2019-05-10 12:14:52 CST; 2h 25min ago Main PID: 5202 (krb5kdc) CGroup: /system.slice/krb5kdc.service └─5202 /usr/sbin/krb5kdc -P /var/run/krb5kdc.pid May 10 12:14:52 node102.yinzhengjie.org.cn systemd[1]: Starting Kerberos 5 KDC... May 10 12:14:52 node102.yinzhengjie.org.cn systemd[1]: Started Kerberos 5 KDC. [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# systemctl stop krb5kdc [root@node102.yinzhengjie.org.cn ~]# [root@node102.yinzhengjie.org.cn ~]# systemctl status krb5kdc ● krb5kdc.service - Kerberos 5 KDC Loaded: loaded (/usr/lib/systemd/system/krb5kdc.service; enabled; vendor preset: disabled) Active: inactive (dead) since Fri 2019-05-10 14:40:24 CST; 1s ago Main PID: 5202 (code=exited, status=0/SUCCESS) May 10 12:14:52 node102.yinzhengjie.org.cn systemd[1]: Starting Kerberos 5 KDC... May 10 12:14:52 node102.yinzhengjie.org.cn systemd[1]: Started Kerberos 5 KDC. May 10 14:40:24 node102.yinzhengjie.org.cn systemd[1]: Stopping Kerberos 5 KDC... May 10 14:40:24 node102.yinzhengjie.org.cn systemd[1]: Stopped Kerberos 5 KDC. [root@node102.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# tail -100f /var/kerberos/log/dump.log Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:37:31 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:37:41 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:37:51 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:38:01 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:38:11 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:38:21 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:38:31 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:38:41 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:38:51 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:39:01 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:39:11 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:39:21 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:39:31 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:39:41 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:39:51 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:40:01 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:40:11 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:40:21 CST 2019 Database propagation to node102.yinzhengjie.org.cn: SUCCEEDED Fri May 10 14:40:31 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:40:41 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:40:51 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:41:01 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:41:11 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:41:21 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:41:31 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:41:41 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:41:51 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:42:01 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:42:11 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:42:21 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:42:31 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:42:41 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:42:51 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:43:01 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:43:11 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:43:21 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:43:31 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:43:41 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:43:51 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials Fri May 10 14:44:01 CST 2019 /usr/sbin/kprop: Cannot contact any KDC for requested realm while getting initial credentials ^C [root@node101.yinzhengjie.org.cn ~]#
[root@node103.yinzhengjie.org.cn ~]# klist Ticket cache: FILE:/tmp/krb5cc_0 Default principal: admin@YINZHENGJIE.COM Valid starting Expires Service principal 05/10/2019 14:39:58 05/20/2019 14:39:58 krbtgt/YINZHENGJIE.COM@YINZHENGJIE.COM [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# kdestroy [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# klist klist: No credentials cache found (filename: /tmp/krb5cc_0) [root@node103.yinzhengjie.org.cn ~]# [root@node103.yinzhengjie.org.cn ~]# kinit admin #由于我们停掉了主KDC服务，也停掉了备KDC服务，因此它找不到可用的KDC啦！ kinit: Cannot contact any KDC for realm 'YINZHENGJIE.COM' while getting initial credentials [root@node103.yinzhengjie.org.cn ~]#
参考链接：
https://blog.csdn.net/w1331808514/article/details/83474345#_msocom_9
https://www.cnblogs.com/xiaodf/p/5968178.html
博主推荐阅读：
https://www.cnblogs.com/yinzhengjie/p/10765503.html
https://docs.oracle.com/cd/E24847_01/html/819-7061/trouble-2.html
https://blog.csdn.net/wk022/article/details/50541699
当你的才华还撑不起你的野心的时候，你就应该静下心来学习。当你的能力还驾驭不了你的目标的时候，你就应该沉下心来历练。问问自己，想要怎样的人生。
欢迎加入基础架构自动化运维：598432640，大数据SRE进阶之路：959042252，DevOps进阶之路：526991186
