4. host file editing and ssh racnode connection

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100 => racnode1

101 => racnode2

/etc/hosts 에 별칭등록

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[oracle@racnode1 ~]$ cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               localhost.localdomain localhost
::1             localhost6.localdomain6 localhost6
# public
192.168.0.100           racnode1
192.168.0.101           racnode2

# private interconnect
192.168.1.100           racnode1-priv
192.168.1.101           racnode2-priv

# public virtual
192.168.2.100           racnode1-vip
192.168.2.101           racnode2-vip

# scan
192.168.1.187           racnode-cluster-scan

# openfiler
192.168.1.195           openfiler1-priv
[oracle@racnode1 ~]$

 

 

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1. create ssh key

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[oracle@racnode1 ~]$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/home/oracle/.ssh/id_rsa):
Created directory '/home/oracle/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/oracle/.ssh/id_rsa.
Your public key has been saved in /home/oracle/.ssh/id_rsa.pub.
The key fingerprint is:
23:31:78:a4:5e:dd:65:a8:99:66:65:a3:6d:88:2a:9c oracle@racnode1
[oracle@racnode1 ~]$

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2. key copy

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[oracle@racnode1 ~]$ cd .ssh
[oracle@racnode1 .ssh]$ ls
id_rsa  id_rsa.pub
[oracle@racnode1 .ssh]$ cp id_rsa.pub authorized_keys
[oracle@racnode1 .ssh]$

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3. known_host add host address

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[oracle@racnode1 .ssh]$ ssh racnode1
The authenticity of host 'racnode1 (192.168.0.100)' can't be established.
RSA key fingerprint is 86:3c:7f:33:d4:03:70:89:74:e7:46:d3:cc:0b:5a:35.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'racnode1,192.168.0.100' (RSA) to the list of known hosts.
Last login: Sun Jun 20 12:07:27 2010 from racnode2
[oracle@racnode1 ~]$ ssh racnode2
The authenticity of host 'racnode2 (192.168.0.101)' can't be established.
RSA key fingerprint is 66:6d:82:82:09:0a:ec:b2:40:5d:ea:e0:80:35:08:c2.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'racnode2,192.168.0.101' (RSA) to the list of known hosts.
oracle@racnode2's password:
Last login: Sat Jun 19 21:05:39 2010 from racnode2
[oracle@racnode2 ~]$ exit
logout
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4. confirm host

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[oracle@racnode1 .ssh]$ cat known_hosts
racnode1,192.168.0.100 ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAyAlBJxjAT+abu4FquhFIyscAJW2g0y7Oz6OHVJV1TYvh1b7JlirdYgfkwfKsbP5BiyLmuY774mfWgMvJ6HMRlbrO/PXexl12b3eEZsMVjGSozawoQZlXHDuA2yDYkAFZzLGaNhDnKWMiX72UpQBOz26Hu6qE2r6zfkaAuJjwAj7VUTcwyE4eq+hkzQc6kQnPNNf5lOGxAA7xxARGhu7NG7pR3tVu0bB33UBVvrVJong+nKlafkadtD27w7zXrqkD4X2gW0lL2B2e2H3pPxW3s4THPN04f+TQLgUB7ITmMODrin0Fq4bPegtqSYzHTiXwKzopk1n/anf0hRhmT1iBXQ==
racnode2,192.168.0.101 ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAvXUwi1XhoVZSZhlUPd2H8DmfPewy9FuqapZAx0ldwQYySbimHMdanQs60M4fYNwMZDoygk7rNLcsDK/DlMiqY5RCnZhh13oHOYVa7Oxyf0qoUyrfLJ3s1gQsZl4mlDkXI5g9+6Pgpb2n4Kcjtt5aO6V0yaYQdxexgCCNOlFoSPy2cYXEVDLNVFXcb8vFRPk05YkS/YM/xB+UDeNKiKPrSBcBP+nlnOHtR1g1aoAVRdyDvADzfMnzXbU9PWzTmOPuycZVpcLJVj+gY69Wwk4UUHgqjfIYmmldIH5AmfLi/jnqbWqX5nH1AWQ/8pI2B11g29t6OcK0EWUg+9EREBHPRw==

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5. racnode2 create dir : .ssh

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[oracle@racnode1 .ssh]$ ssh racnode2
oracle@racnode2's password:
Last login: Sat Jun 19 21:11:09 2010 from racnode1
[oracle@racnode2 ~]$ ssh racnode1

[oracle@racnode2 ~]$ ssh racnode1
The authenticity of host 'racnode1 (192.168.0.100)' can't be established.
RSA key fingerprint is 86:3c:7f:33:d4:03:70:89:74:e7:46:d3:cc:0b:5a:35.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'racnode1,192.168.0.100' (RSA) to the list of known hosts.
oracle@racnode1's password:
Last login: Sun Jun 20 12:12:43 2010 from racnode1
[oracle@racnode1 ~]$

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6. .ssh directoy racnode2 copy

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[oracle@racnode1 .ssh]$ scp * oracle@racnode2:.ssh
oracle@racnode2's password:
authorized_keys                                                                                                        100%  397     0.4KB/s   00:00   
id_rsa                                                                                                                 100% 1675     1.6KB/s   00:00   
id_rsa.pub                                                                                                             100%  397     0.4KB/s   00:00   
known_hosts                                                                                                            100%  808     0.8KB/s   00:00   
[oracle@racnode1 .ssh]$

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7. end & confirm

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[oracle@racnode1 .ssh]$ ssh racnode1
Last login: Sun Jun 20 12:19:11 2010 from racnode1
[oracle@racnode1 ~]$ ssh racnode2
Last login: Sat Jun 19 21:17:38 2010 from racnode1
[oracle@racnode2 ~]$