Author Archives: richard

Install vLLM on RHEL 9 Linux

Posted on September 12, 2026 by richard

We’re using a derivative of RHEL 9 Linux being AlmaLinux 9, but this should work for RHEL 9 itself and others like Rocky Linux 9 etc. First we need an up to date Python 3 version installed, anything older than … Continue reading →

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Install AWX on RKE2 after installing AWX Operator

Posted on September 12, 2026 by richard

We’re going to build on an AWX Operator pod install in a RKE2 based Kubernetes environment. Quickly, AWX Operator is installed and running, its install is: git clone –branch “2.19.1” –depth 1 https://github.com/ansible/awx-operator.gitcd awx-operator We can update the manifests/awx-operator.yaml file … Continue reading →

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Install RKE2 to Ubuntu 26

Posted on September 5, 2026 by richard

We have an Ubuntu 26.04 host which is not connected to the Internet, so can’t do the online/default RKE2 install and needs the required install files downloaded and transferred to it. If you’re running in a VM, ensure you have … Continue reading →

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Upgrade Ubuntu 24 to 26.04

Posted on September 5, 2026 by richard

Command to run as root: apt update apt upgrade -yapt autoremove -yapt install update-manager-core -y Reboot here if there were updated packages installed. Then run the main upgrade command, answering all questions with ‘y’ do-release-upgrade -d

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Use Hermes to install Ansible AWX – Part 1: The Operator

Posted on August 15, 2026 by richard

Here I describe customisation / settings needed for Hermes Agent to be able to be used to install the Ansible AWX server system to a RHEL based host by root ssh commands and sessions. Firstly, setup the SSH key for … Continue reading →

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Adding Areca storage controller drivers to RHEL 9 based Linux

Posted on August 1, 2026 by richard

Adding an Areca ARC-188x series PCIe 2.0/3.0 to SAS/SATA 6/12Gb RAID Controller to a server involved installing the arcmsr driver to the existing CentOS 9 based Linux OS. This install from source from the vendor was required because the package … Continue reading →

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Ending commercial hosting services through Network Presence

Posted on January 25, 2026 by richard

After some 15 years of operation, I’ve decided to shutdown the publicretail cloud/VPS operations side of Network Presence. The first phase of this is to quickly shutdown the Sydney POP, with the last day of service from Network Presence in … Continue reading →

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Installing OpenMPI across CentOS/RHEL 9 based Nodes

Posted on December 16, 2025 by richard

OpenMPI is available for install from the AppStream Repo and EPEL Repo is also best enabled for its required associated packages in a CentOS 9 (RHEL) environment of separate like installed compute nodes in a cluster. Install OpenMPI with: dnf … Continue reading →

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Get all the logs and output from a systemctl based service

Posted on December 4, 2025 by richard

Use the following command to get the full output from a recent service start attempt: SYSTEMD_LESS=”FRXMK” journalctl -xeu $SERVICENAME eg: # SYSTEMD_LESS=”FRXMK” journalctl -xeu httpd

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tcpdump params to find the initial connection packets to a port

Posted on November 21, 2025 by richard

‘tcp[tcpflags] & (tcp-syn) != 0 and tcp[tcpflags] & (tcp-ack) == 0 and dst port $PORTNUM’

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