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| [[Main Page|Home]] > [[Ubuntu]] > [[Ubuntu HPC setup with slurm and linux containers]] > [[Ubuntu HPC common setup for all HPC nodes]]
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| = Install Ubuntu 22.04 =
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| : Install Ubuntu 22.04 Server on all nodes with most default values.
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| : Create a non-root user (e.g., admin) during setup.
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| == Login Using the Admin User ==
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| : Login to each node using the admin user.
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| == Configure History Retention ==
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| : Enable storing date and time along with each command in history, as explained in the guide:
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| [[Storing date / time along with commands in history]]
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| == Install Essential Packages ==
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| <pre> sudo su - apt update apt -y install openssh-server vim htop stress munge </pre>
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| == Set Root Password ==
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| <pre> passwd </pre>
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| == Enable Root SSH Access ==
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| : Edit the SSH configuration file:
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| <pre> vim /etc/ssh/sshd_config </pre>
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| : Locate and change the following line:
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| <pre> PermitRootLogin yes </pre>
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| == Restart SSH Service ==
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| <pre> systemctl restart sshd </pre>
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| == Stop and disable OS firewall services ==
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| <pre>
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| systemctl stop ufw
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| systemctl disable ufw
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| </pre>
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| == Add IP Address and Hostname Mapping ==
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| On '''all nodes''', including containers and VM/bare-metal systems, add the IP address and hostname mapping entries into the `<code>/etc/hosts</code>` file.
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| Also, make sure to '''comment out''' the default hostname entry like this:
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| <pre>
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| #127.0.1.1 <hostname>
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| </pre>
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| === Example ===
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| <pre>
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| #127.0.1.1 infra
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| 192.168.2.5 infra.local infra
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| 192.168.2.3 node2.local node2
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| 192.168.2.4 node1.local node1
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| 192.168.2.6 slurm-login.local slurm-login
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| 192.168.2.7 slurm-db.local slurm-dbsrv
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| 192.168.2.8 slurm-master.local slurm-master
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| 192.168.2.9 slurm-ldap.local slurm-ldapsrv
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| </pre>
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| == Install Environment Modules ==
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| <pre> apt install -y environment-modules </pre>
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| == Re-login for Modules to Work ==
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| : After installation, logout and login again into each node to ensure module command works.
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| == Configure Module Path ==
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| : Edit the module path configuration file:
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| <pre> vim /etc/environment-modules/modulespath </pre>
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| : Add the following line:
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| <pre> /export/modules </pre>
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| [[Main Page|Home]] > [[Ubuntu]] > [[Ubuntu HPC setup with slurm and linux containers]] > [[Ubuntu HPC common setup for all HPC nodes]]
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