Configuring SSH

Configure SSH between two nodes

While logged in as oracle perform the following on each of the nodes of the RAC:

1. cd $HOME
2. mkdir ~/.ssh
3. chmod 700 ~/.ssh
4. /usr/bin/ssh-keygen -t rsa
5. /usr/bin/ssh-keygen -t dsa

On Node 1:

1. cd $HOME/.ssh
2. cat id_rsa.pub >> authorized_keys
3. cat id_dsa.pub >> authorized_keys
4. Copy the authorized_keys file to the node 2. scp authorized_keys node2:/opt/oracle/.ssh

On Node 2:

1. cd $HOME/.ssh
2. cat id_rsa.pub >> authorized_keys
3. cat id_dsa.pub >> authorized_keys
4. scp authorized_keys node1:/opt/oracle/.ssh

• Now perform a ssh between all the nodes including the node-priv hostnames as well. Check to make sure that ssh is configured well without prompting for the password (on both the nodes):
  

$ ssh coke.pinnacle.com date
Sun Aug 12 08:41:42 CDT 2007
$ ssh pepsi.pinnacle.com date
Sun Aug 12 08:42:23 CDT 2007
$ ssh coke-priv date
Sun Aug 12 08:42:45 CDT 2007
$ ssh pepsi-priv date
Sun Aug 12 08:43:22 CDT 2007