ssh互信配置

配置ssh互信
     节点1：            
                              mkdir .ssh                
                  chmod 755 .ssh            
                  /usr/bin/ssh-keygen -t rsa
                  /usr/bin/ssh-keygen -t dsa
    节点2：                                            
                  mkdir .ssh                
                  chmod 755 .ssh            
                  /usr/bin/ssh-keygen -t rsa
                  /usr/bin/ssh-keygen -t dsa
     节点3：                                            
                  mkdir .ssh                
                  chmod 755 .ssh            
                  /usr/bin/ssh-keygen -t rsa
                  /usr/bin/ssh-keygen -t dsa
     节点4：                                            
                  mkdir .ssh                
                  chmod 755 .ssh            
                  /usr/bin/ssh-keygen -t rsa
                  /usr/bin/ssh-keygen -t dsa
   
 
     节点1：
                cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys                                           
                cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
   
     
               ssh weblogic@jzsq2 cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
               ssh weblogic@jzsq2 cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys 

               ssh weblogic@jzsq3 cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
               ssh weblogic@jzsq3 cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys 

               ssh weblogic@jzsq4 cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
               ssh weblogic@jzsq4 cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys 

              chmod 600 ~/.ssh/authorized_keys
    
    节点1：

              scp ~/.ssh/authorized_keys jzsq2:~/.ssh/authorized_keys 
              scp ~/.ssh/authorized_keys jzsq3:~/.ssh/authorized_keys 
              scp ~/.ssh/authorized_keys jzsq4:~/.ssh/authorized_keys 
 

   节点1，节点2，节点3，节点4 两两ssh验证