Centos8如何搭建配置nis域服务

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NIS 简介

NIS，英文的全称是network information service，也叫yellow pages。在Linux中，NIS是一个基于RPC的client/server系统，需要使用 RPC 服务。

RPC即Remote Procedure Call Protocol（远程过程调用协议），RPCBIND用于取代旧版本中的portmap组件。简单说，RPCBIND就是为了将不同服务与对应的端口进行绑定，以便支持机器间的相互操作。

网络环境：

1.环境准备(两个节点都要)

关闭防火墙

systemctl stop firewalld setenforce 0

添加主机名解析

vim /etc/hosts192.168.10.222 node1 192.168.10.223 node2

2.nis主服务器配置

下载软件包

yum -y install  rpcbind ypserv ypbind yp-tools

添加nis域名

[root@localhost ~]# nisdomainname skills.com vim /etc/sysconfig/networkNISDOMAIN skills.com

开机自动挂载nis域名

[root@localhost ~]# vim /etc/rc.d/rc.local touch /var/lock/subsys/local/bin/nisdomainname skills.com[root@localhost ~]# chmod 777 /etc/rc.d/rc.local

修改主配置文件限制权限

vim /etc/ypserv.conf192.168.10.0/24:*:*:none   //给与该网段访问权限192.168.10.222:*:*:none    //给与该本机访问权限             :*:*:deny     //拒绝其他服务器

重启服务

systemctl restart yppasswdd rpcbind ypserv systemctl enable  yppasswdd rpcbind ypserv

建立资料库

[root@localhost ~]# /usr/lib64/yp/ypinit -m At this point, we have to construct a list of the hosts which will run NISservers.  localhost is in the list of NIS server hosts.  Please continue to addthe names for the other hosts, one per line.  When you are done with thelist, type a .        next host to add:  localhost        next host to add:  The current list of NIS servers looks like this: localhost Is this correct?  [y/n: y]  yWe need a few minutes to build the databases...Building /var/yp/skills.com/ypservers...Running /var/yp/Makefile...gmake[1]: Entering directory '/var/yp/skills.com'Updating passwd.byname...Updating passwd.byuid...Updating group.byname...Updating group.bygid...Updating hosts.byname...Updating hosts.byaddr...Updating rpc.byname...Updating rpc.bynumber...Updating services.byname...Updating services.byservicename...Updating netid.byname...Updating protocols.bynumber...Updating protocols.byname...Updating mail.aliases...gmake[1]: Leaving directory '/var/yp/skills.com' localhost has been set up as a NIS master server. Now you can run ypinit -s localhost on all slave server.[root@localhost ~]#

新建nis账户

useradd nis1 -p123 useradd nis2 -p123 当主机发生了更改就cd到/var/yp make [root@localhost ~]# cd /var/yp/[root@localhost yp]# makegmake[1]: Entering directory '/var/yp/skills.com'Updating passwd.byname...Updating passwd.byuid...Updating group.byname...Updating group.bygid...Updating netid.byname...gmake[1]: Leaving directory '/var/yp/skills.com'[root@localhost yp]#

重启服务

systemctl restart yppasswdd rpcbind ypserv systemctl enable  yppasswdd rpcbind ypserv

3.nis客户端设置

下载软件包

yum -y install ypbind rpcbind yp-tools

添加nis域名

[root@localhost ~]# nisdomainname skills.com vim /etc/sysconfig/networkNISDOMAIN skills.com

开机自动挂载nis域名

[root@localhost ~]# vim /etc/rc.d/rc.local touch /var/lock/subsys/local/bin/nisdomainname skills.com[root@localhost ~]# chmod 777 /etc/rc.d/rc.local

编辑yp.conf文件，设置主服务。

domain skills.com server 192.168.10.222

重启服务

 systemctl restart ypbind rpcbind

yptest查看是否加入成功

[root@localhost ~]# yptestTest 1: domainnameConfigured domainname is "skills.com" Test 2: ypbindUse Protocol V1: Used NIS server: 192.168.10.222Use Protocol V2: Used NIS server: 192.168.10.222Use Protocol V3:ypbind_nconf:        nc_netid: udp        nc_semantics: 1        nc_flag: 1        nc_protofmly: 'inet'        nc_proto: 'udp'        nc_device: '-'        nc_nlookups: 0ypbind_svcaddr: 192.168.10.222:740ypbind_servername: 192.168.10.222ypbind_hi_vers: 2ypbind_lo_vers: 2 Test 3: yp_matchWARNING: No such key in map (Map passwd.byname, key nobody) Test 4: yp_firstnis1 nis1:123:1000:1000::/home/nis1:/bin/bash Test 5: yp_nextnis2 nis2:123:1001:1001::/home/nis2:/bin/bash Test 6: yp_masterlocalhost Test 7: yp_order1639387530 Test 8: yp_maplistnetid.bynamegroup.bygidgroup.bynamepasswd.byuidpasswd.bynamemail.aliasesprotocols.bynameprotocols.bynumberservices.byservicenameservices.bynamerpc.bynumberrpc.bynamehosts.byaddrhosts.bynameypservers Test 9: yp_allnis1 nis1:123:1000:1000::/home/nis1:/bin/bashnis2 nis2:123:1001:1001::/home/nis2:/bin/bash1 tests failed[root@localhost ~]#

配置域用户登陆

[root@localhost ~]# authselect select nis --forceBackup stored at /var/lib/authselect/backups/2021-12-13-09-34-52.8NFKZDProfile "nis" was selected.The following nsswitch maps are overwritten by the profile:- aliases- automount- ethers- group- hosts- initgroups- netgroup- networks- passwd- protocols- publickey- rpc- services- shadow Make sure that NIS service is configured and enabled. See NIS documentation for more information. [root@localhost ~]#

主服务器配置nfs，将home目录共享。

[root@localhost yp]# vim /etx/exports/home/ *(rw,sync)[root@localhost yp]# exportfs -rvexporting *:/home

客户端挂载主服务器home目录

systemctl restart nfs-server [root@localhost ~]# mount 192.168.10.222:/home/ /home/[root@localhost ~]# dfFilesystem           1K-blocks    Used Available Use% Mounted ondevtmpfs                379852       0    379852   0% /devtmpfs                   399816       0    399816   0% /dev/shmtmpfs                   399816    5688    394128   2% /runtmpfs                   399816       0    399816   0% /sys/fs/cgroup/dev/mapper/cl-root   17811456 1615988  16195468  10% //dev/sda1              1038336  196688    841648  19% /boot/dev/sr0               9046654 9046654         0 100% /mediatmpfs                    79960       0     79960   0% /run/user/0192.168.10.222:/home  17811456 1644672  16166784  10% /home[root@localhost ~]#

添加开机自动挂载主服务home目录。

vim /etc/fstab192.168.10.222:/home    /home                   nfs     defaults        0 0[root@localhost ~]# mount -a [root@localhost ~]# dfFilesystem           1K-blocks    Used Available Use% Mounted ondevtmpfs                379852       0    379852   0% /devtmpfs                   399816       0    399816   0% /dev/shmtmpfs                   399816    5688    394128   2% /runtmpfs                   399816       0    399816   0% /sys/fs/cgroup/dev/mapper/cl-root   17811456 1613680  16197776  10% //dev/sda1              1038336  196688    841648  19% /boot/dev/sr0               9046654 9046654         0 100% /media192.168.10.222:/home  17811456 1644544  16166912  10% /hometmpfs                    79960       0     79960   0% /run/user/0[root@localhost ~]#

到这nis配置完成。

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