Howto access the cluster

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(Second step: Accessing the cluster servers)
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=New Cluster=
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=First step: Accessing the bastion host=
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==User accounts==
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You need a KU login to get access to this cluster. Ask imsupport to get access rights.
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==Accessing the cluster==
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===First step: Bastion host===
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First login to our bastion host:
First login to our bastion host:
  ssh <KU-login>@ssh-diku-image.science.ku.dk
  ssh <KU-login>@ssh-diku-image.science.ku.dk
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If you want to access ssh-diku-image from the cluster you may need to add SCIENCE\\ in front of your KU login.
If you want to access ssh-diku-image from the cluster you may need to add SCIENCE\\ in front of your KU login.
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===Second step: Accessing the cluster servers===
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=New Cluster=
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Now you can login to the cluster by doing the following.
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==User accounts==
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You need a KU login to get access to this cluster. Ask imsupport to get access rights.
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==Accessing the cluster servers==
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From the bastion host you can login to the cluster by doing the following.
Access to the storage servers:
Access to the storage servers:
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  ssh <KU-login>@nfs2-diku-image.science.ku.dk
  ssh <KU-login>@nfs2-diku-image.science.ku.dk
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Acess to the compute servers:
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Access to the compute servers:
  ssh <KU-login>@compute01-diku-image.science.ku.dk
  ssh <KU-login>@compute01-diku-image.science.ku.dk
  ssh <KU-login>@compute02-diku-image.science.ku.dk
  ssh <KU-login>@compute02-diku-image.science.ku.dk
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==Accessing the cluster==
==Accessing the cluster==
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All access to the cluster is through one of the diku bastion hosts (ask, tyr, brok). From these hosts you use ssh to connect to the cluster.  
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All access to the cluster is through the bastion host. From that you use ssh to connect to the cluster.  
Ex. to connect to imagediskserver3 you do.
Ex. to connect to imagediskserver3 you do.
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  ssh -Y 192.168.10.103
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  ssh -Y yourusername@130.226.12.104
Your user account home directory is located under /home.
Your user account home directory is located under /home.
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NOTE: Currently the name handling on the diku system is not configured correctly so we can NOT use the cluster machine names from the bastion hosts (ask, tyr, brok), but have to use their IP addresses. On the cluster machines you CAN use the host names instead of the IP addresses.
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NOTE: Currently the name handling on the diku system is not configured correctly so we can NOT use the cluster machine names from the bastion host, but have to use their IP addresses. On the cluster machines you CAN use the host names instead of the IP addresses.
For your convenience the IP addresses are given below:
For your convenience the IP addresses are given below:
  # File servers
  # File servers
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  192.168.10.101 imagediskserver1 (out of order)
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  192.168.10.103 imagediskserver3.diku.dk
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192.168.10.102 imagediskserver2 (out of order)
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192.168.10.103 imagediskserver3
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  % IBM blade servers
  % IBM blade servers
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  192.168.10.111 imageserver1
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  192.168.10.111 imageserver1.diku.dk
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192.168.10.112 imageserver2 (out of order)
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  192.168.10.113 imageserver3.diku.dk
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  192.168.10.113 imageserver3
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Revision as of 15:00, 8 December 2014

Contents

First step: Accessing the bastion host

First login to our bastion host:

ssh <KU-login>@ssh-diku-image.science.ku.dk

or

ssh SCIENCE\\<KU-login>@ssh-diku-image.science.ku.dk

Substitute <KU-login> with your KU login name. Your password is the same as on KUnet etc. If you want to access ssh-diku-image from the cluster you may need to add SCIENCE\\ in front of your KU login.

New Cluster

User accounts

You need a KU login to get access to this cluster. Ask imsupport to get access rights.

Accessing the cluster servers

From the bastion host you can login to the cluster by doing the following.

Access to the storage servers:

ssh <KU-login>@nfs1-diku-image.science.ku.dk
ssh <KU-login>@nfs2-diku-image.science.ku.dk

Access to the compute servers:

ssh <KU-login>@compute01-diku-image.science.ku.dk
ssh <KU-login>@compute02-diku-image.science.ku.dk
ssh <KU-login>@compute03-diku-image.science.ku.dk
ssh <KU-login>@compute04-diku-image.science.ku.dk

Substitute <KU-login> with your KU login name. Your password is the same as on KUnet etc.

Old Cluster

User accounts

We have made user accounts for all current members of the image group. Your password is the same as your diku password. However if you do not have an account you should contact an administrator. Currently the administrators are Stefan, Kim and Jon.

Notice that currently if you change your diku password you will not change your cluster password or vice versa.

Accessing the cluster

All access to the cluster is through the bastion host. From that you use ssh to connect to the cluster. Ex. to connect to imagediskserver3 you do.

ssh -Y yourusername@130.226.12.104

Your user account home directory is located under /home.

NOTE: Currently the name handling on the diku system is not configured correctly so we can NOT use the cluster machine names from the bastion host, but have to use their IP addresses. On the cluster machines you CAN use the host names instead of the IP addresses.

For your convenience the IP addresses are given below:

# File servers
192.168.10.103 imagediskserver3.diku.dk

% IBM blade servers
192.168.10.111 imageserver1.diku.dk
192.168.10.113 imageserver3.diku.dk
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