Hadoop集群搭建--Linux服务器配置

1. 配置IP及主机名映射

   设置IP

    vi /etc/sysconfig/network-scripts/ifcfg-eth0       

DEVICE=eth0
TYPE=Ethernet
UUID=722edcfd-8fa3-4090-a68a-51e498049e53
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
HWADDR=00:0C:29:4C:45:22
IPADDR=192.168.112.50
PREFIX=24
GATEWAY=192.168.112.2
DNS1=192.168.112.2

   设置主机名

   vi /etc/sysconfig/network

NETWORKING=yes
HOSTNAME=bd-server.rabbit.com

   设置IP和主机名的映射关系

  vi /etc/hosts

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.112.50 bd-server.rabbit.com

2.关闭防火墙及SELinux

   service iptables stop 

   chkconfig iptables off 

   vi /etc/selinux/config

  设置SELINUX=disabled

3.设置时间同步

   yum install ntp -y

  vi /etc/ntp.conf

   server ntp1.aliyun.com

 service ntpd start

 chkconfig ntpd on

4.安装JDK(版本需要8及以上)

  rpm -ivh  jdk-8XXXXXX.rpm 

  配置JAVAHOME和PATH

   vi /etc/profile

export JAVA_HOME=/opt/moudles/jdk1.8.0_151
export PATH=$PATH:$JAVA_HOME/bin

source /etc/profile

5.设置免密登录

(如果A想免密登录B,需要将自己的公钥分发到B)

  验证自己是否免密:

  ssh localhost (此时会自动生成 .ssh目录)

       生成公私钥:

  ssh-keygen -t dsa  -P '' -f  /root/.ssh/id_dsa

    cat /root/.ssh/id_dsa.pub >>  /root/.ssh/authorized_keys

 再执行 ssh localhost  就不会提示输入密码了

 

posted @ 2021-02-26 22:40  Rabbit624  阅读(120)  评论(0编辑  收藏  举报