（二）Hadoop HA高可用集群的配置-免密码登录集群网络属性配置

比眉伴天荒 2023-06-19 15:23 11阅读 0赞

**目录**

一、实验目的及要求：

二、环境要求：

三、配置步骤：

步骤一：配置静态网络地址

步骤二：配置主机名

步骤三：配置防火墙（例举Cluster-01主机，其余主机做相同操作）

步骤四：配置主机地址映射

步骤五：配置免密码登录

--------------------

# 一、实验目的及要求： #

**实验目的**

掌握在Linux系统中配置完全分布模式的整合平台相关的网络属性

（1）静态网络地址的配置

（2）主机名的配置

（3）防火墙的配置

（4）主机地址映射的配置

（5）免密码登录的配置

**实验要求**

1.  完成静态网络地址的配置，所有主机的网络能够正常使用，相互之间能够正常连接；
2.  完成主机名的配置，正确设定永久主机名；
3.  完成防火墙的配置，使平台相关软件的常用端口能够远程访问。
4.  完成主机地址映射的配置，使所有主机能够通过主机名相互正常访问。
5.  完成免密码登录的配置，使所有主节点能够免密码登录集群中所有其他节点，多个节点之间能够相互免密码登录到对方，同时主节点能够免密码登录自身。

# 二、环境要求： #

1.  五台独立PC机或虚拟机；
2.  主机之间有有效的网络连接；
3.  每台主机内存2G以上，磁盘50G；
4.  所有主机上已安装CentOS 7.4\_64操作系统。

**集群规划：**

主节点：    主机1   192.168.10.111   Cluster-01

主节点：    主机2   192.168.10.112   Cluster-02

其他节点： 主机3   192.168.10.113   Cluster-03

其他节点： 主机4   192.168.10.114   Cluster-04

其他节点： 主机5   192.168.10.115   Cluster-05

# 三、配置步骤： #

## **步骤一：配置静态网络地址** ##

第一步：进入网络配置文件的目录“/etc/sysconfig/network-scripts”，修改配置文件“ifcfig-ens33”（例举Cluster-01，其余主机做相同操作）；

![20191207093126749.jpeg][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70][]

第二步：重启网络服务；

![20191207093202941.jpeg][]

第三步：查看IP地址；

Cluster-01：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 1][]

Cluster-02：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 2][]

Cluster-03：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 3][]

Cluster-04：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 4][]

Cluster-05：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 5][]

第三步：修改每个主机适配器为NET模式（右击虚拟机->设置->网络适配器->NET模式->确定）；

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 6][]

第四步：修改虚拟网络编辑器，物理机上的虚拟网卡VMnet8；

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 7][]

**   ** ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 8][]

第五步：分别在物理机的命令行窗口与虚拟机验证连通性；

物理机：

![20191207093332432.jpeg][]

![20191207093332437.jpeg][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 9][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 10][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 11][]

![20191207093332518.jpeg][]

Cluster-01：

![20191207093419651.jpeg][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 12][]

![20191207093419711.jpeg][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 13][]

![20191207093415323.jpeg][]

## **步骤二：配置主机名** ##

** ** 第一步：进入配置主机名文件所在的目录，修改主机名；

![20191207093517417.jpeg][]

第二步：重启主机；

![20191207093517427.jpeg][]

第三步：查看主机名；

![20191207093517428.jpeg][]

![20191207093512943.jpeg][]

![20191207093517434.jpeg][]

![20191207093517439.jpeg][]

![20191207093517452.jpeg][]

## **步骤三：配置防火墙（例举Cluster-01主机，其余主机做相同操作）** ##

** ** 第一步：关闭防火墙服务；

![20191207093513818.jpeg][]

第二步：禁止防火墙服务的开机自启；

![20191207093517458.jpeg][]

第三步：验证防火墙是否关闭；

Cluster-01：

![20191207093514888.jpeg][]

Cluster-02：

![20191207093517482.jpeg][]

Cluster-03：

![20191207093517492.jpeg][]

Cluster-04：

![20191207093517509.jpeg][]

Cluster-05：

![20191207093517530.jpeg][]

## **步骤四：配置主机地址映射** ##

第一步：进入配置文件的目录“/etc/”下,修改配置文件hosts；

![20191207093517535.jpeg][]

![20191207093513933.jpeg][]

第二步：将配置文件“hosts”发送给集群中的其他主机，发送的目标主机用户为“root”用户，发送目标路径为“/etc”；

![20191207093517580.jpeg][]

![2019120709351522.jpeg][]

![20191207093517623.jpeg][]

![20191207093517656.jpeg][]

## **步骤五：配置免密码登录** ##

第一步：新建集群统一用户admin,并创建密码admin;

![20191207093517673.jpeg][]

第二步：登录admin账户，生成本机系统当前登录用户的公钥和秘钥文件；

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 14][]

第三步：显示~目录下的隐藏文件，进入.ssh目录，显示目标列表；

![20191207093517718.jpeg][]

第四步：将公钥文件拷贝给需要进行免密登录的目标主机和目标用户，把本机的公钥追到目标主机的.ssh/autorized\_keys里；

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 15][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 16][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 17][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 18][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTMyOTc1OA_size_16_color_FFFFFF_t_70 19][]

第五步：验证免密码登录；

![20191207093517904.jpeg][]

![20191207093514286.jpeg][]

![20191207093517917.jpeg][]

![20191207093515374.jpeg][]

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