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6.8

Configure SSH for User Equivalence

Asked by lbinsoon in Unix Network Security

Tags: equivalence, ssh, user

Hi,
   During the installation of Oracle RAC 10g Release 2, OUI needs to copy files to and execute programs on the other nodes in the cluster. In order to allow OUI to do that, I must configure SSH2 to allow user equivalence. Establishing user equivalence with SSH2 provides a secure means of copying files and executing programs on other nodes in the cluster without requiring password prompts. After i had performed the below steps, when i "ssh2 oracle@serverA or B" i still prompt me for password. Anyone know where could have go wrong?

Thank You.

Below are the steps that i had performed:

#Both Node
mkdir ~/.ssh2
chmod 755 ~/.ssh2

ssh-keygen2 -t rsa
ssh-keygen2 -t dsa

#First Node
cat ~/.ssh2/id_rsa_2048_a.pub >> ~/.ssh2/authorized_keys
cat ~/.ssh2/id_dsa_2048_a.pub >> ~/.ssh2/authorized_keys

ssh2 oracle@serverA cat ~/.ssh2/id_rsa_2048_a.pub >> ~/.ssh2/authorized_keys
ssh2 oracle@serverA cat ~/.ssh2/id_dsa_2048_a.pub >> ~/.ssh2/authorized_keys
chmod 644 ~/.ssh/authorized_keys

#Second Node
cat ~/.ssh2/id_rsa_2048_a.pub >> ~/.ssh2/authorized_keys
cat ~/.ssh2/id_dsa_2048_a.pub >> ~/.ssh2/authorized_keys

ssh2 oracle@serverB cat ~/.ssh2/id_rsa_2048_a.pub >> ~/.ssh2/authorized_keys
ssh2 oracle@serverB cat ~/.ssh2/id_dsa_2048_a.pub >> ~/.ssh2/authorized_keys
chmod 644 ~/.ssh2/authorized_keys

#Both Node
exec ssh-agent2 $SHELL
/opt/ssh2/bin/ssh-add2

#Both Node
ssh2 oracle@serverB
ssh2 oracle@serverA
[+][-]08/17/06 12:37 AM, ID: 17332207

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About this solution

Zone: Unix Network Security
Tags: equivalence, ssh, user
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Solution Provided By: noci
Participating Experts: 4
Solution Grade: A
 
 
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