无密码SSH到其他节点的配置

chasetang

   要并行一个软件，需要无密码验证的从主节点SSH到其他节点，条件是个个节点共享头节电上的/home文件夹及软件所在目录
一种配置方法如下：
$cd ~/
$vi .bashrc
$cat .bashrc
# .bashrc
# User specific aliases and functions
# Source global definitions
if [ -f /etc/bashrc ]; then
        . /etc/bashrc
fi
export P4_RSHCOMMAND=ssh
$vi .bash_profile
$cat .bash_profile
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi
# User specific environment and startup programs
PATH=$PATH:$HOME/bin:/usr/local/rsoft/bin:/usr/bin:.
export PATH
unset USERNAME
$. .bashrc
$. .bash_profile
$ssh-keygen -t dsa
Generating public/private dsa key pair.
Enter file in which to save the key (/home/chasetang/.ssh/id_dsa):
Created directory '/home/chasetang/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/chasetang/.ssh/id_dsa.
Your public key has been saved in /home/chasetang/.ssh/id_dsa.pub.
The key fingerprint is:
20:e0:c3:24:4a:e2:1b:ed:e3:4c:fc:a5:c6:67:4a:44 chasetang@fullwave01
$cd .ssh/
$ls
id_dsa  id_dsa.pub
$cp id_dsa.pub authorized_keys2
$ssh fullwave02
/* Succeed! */
               
               
               

本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u/13724/showart_127816.html