Linux最常用的命名

一.环境配置

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

  vim /etc/sysconfig/network

  vim /etc/hostname

  vim /etc/hosts

二.ssh 免密码互相登陆

 1. ssh-keygen -t rsa

 2. cd /root/.ssh

 3.cat id_rsa.pub >> authorized_keys

 ssh 各个节点
  4. scp ~/.ssh/authorized_keys cdh1:/root/.ssh