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nitiratna

nitiratna

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  • Member Since: 28 Aug 13
  • Last Logged In: 28 Aug 13

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  • nitiratna
    RE: redhat 6.2 cluster
    MAKE SURE THESE PKGS INSTALLED ON ALL THE NODES. openssh-server.x86_64 openssh-clients.x86_64 NOTE:Do the following steps before Adding NODES to cluster. 1)use single nomenclature for passwordless login AND throughout the cluster configuration. e.g. addressing nodes as node1.com and node2.com (FQDN) 2)Do bi-directional ssh passwordless login between all the nodes. (with using FQDN of opposite node) As follows; [b][root@node1 ~][/b]# [color=gray][i]ssh-keygen[/i][/color] Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): Created directory '/root/.ssh'. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /root/.ssh/id_rsa. Your public key has been saved in /root/.ssh/id_rsa.pub. The key fingerprint is: 7c:72:ec:36:0f:15:46:b6:63:fd:78:97:fc:18:ee:05 root@node1.com The key's randomart image is: +--[ RSA 2048]----+ | o | | o o | | * . | | . . o o.o.| | S + . Eo+| | = . . =o| | = o o| | . + . . | | . . | +-----------------+ [b][root@node1~][/b]#[color=gray]ssh-copy-id -i /root/.ssh/id_rsa.pub node2.com[/color] The authenticity of host 'node2.com (node2.com)' can't be established. RSA key fingerprint is 88:ec:50:1a:a5:a1:63:08:be:7f:c8:73:cc:41:f5:2b. Are you sure you want to continue connecting(yes/no)?yes Warning: Permanently added 'node2.com' (RSA) to the list of known hosts. root@node2.com's password: Now try logging into the machine, with "ssh 'node2.com'", and check in: .ssh/authorized_keys to make sure we haven't added extra keys that you weren't expecting. [root@node1 ~]# 3)PERFORM SIMILAR STEPS FROM node2.com for passwordless login on node1.com 4)make local /etc/hosts entries on both nodes X.X.X.X node1.com node1 Y.Y.Y.Y node2.com node2 5)Add these nodes in the cluster as node1.com not as node1; same for the node2.com regards, nitiratna nikalje MUMBAI, INDIA
    Link to this post 28 Aug 13

    MAKE SURE THESE PKGS INSTALLED ON ALL THE NODES.
    openssh-server.x86_64
    openssh-clients.x86_64

    NOTE:Do the following steps before Adding NODES to cluster.

    1)use single nomenclature for passwordless login AND throughout the cluster configuration.
    e.g. addressing nodes as node1.com and node2.com (FQDN)

    2)Do bi-directional ssh passwordless login between all the nodes. (with using FQDN of opposite node) As follows;

    [root@node1 ~]# ssh-keygen
    Generating public/private rsa key pair.
    Enter file in which to save the key (/root/.ssh/id_rsa):
    Created directory '/root/.ssh'.
    Enter passphrase (empty for no passphrase):
    Enter same passphrase again:
    Your identification has been saved in /root/.ssh/id_rsa.
    Your public key has been saved in /root/.ssh/id_rsa.pub.
    The key fingerprint is:
    7c:72:ec:36:0f:15:46:b6:63:fd:78:97:fc:18:ee:05 root@node1.com
    The key's randomart image is:
    +--[ RSA 2048]----+
    | o |
    | o o |
    | * . |
    | . . o o.o.|
    | S + . Eo+|
    | = . . =o|
    | = o o|
    | . + . . |
    | . . |
    +-----------------+
    [root@node1~]#ssh-copy-id -i /root/.ssh/id_rsa.pub node2.com

    The authenticity of host 'node2.com (node2.com)' can't be established.
    RSA key fingerprint is 88:ec:50:1a:a5:a1:63:08:be:7f:c8:73:cc:41:f5:2b.
    Are you sure you want to continue connecting(yes/no)?yes
    Warning: Permanently added 'node2.com' (RSA) to the list of known hosts.

    root@node2.com's password:
    Now try logging into the machine, with "ssh 'node2.com'", and check in:

    .ssh/authorized_keys

    to make sure we haven't added extra keys that you weren't expecting.

    [root@node1 ~]#

    3)PERFORM SIMILAR STEPS FROM node2.com for passwordless login on node1.com

    4)make local /etc/hosts entries on both nodes

    X.X.X.X node1.com node1
    Y.Y.Y.Y node2.com node2


    5)Add these nodes in the cluster as node1.com not as node1; same for the node2.com

    regards,
    nitiratna nikalje
    MUMBAI, INDIA

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