Author Archives: richard

Ending commercial hosting services through Network Presence

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 thelast day of service from Network Presence in Sydney … Continue reading

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Get all the logs and output from a systemctl based service

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

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

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Upgrading Adelaide POP – Adding new VPS Hypervisors in Adelaide

We’re bringing online new VPS hosting servers (hypervisors) in our Adelaide POP, and moving some existing Adelaide POP customers to these new servers, with short outages for each customer VPS as these migrations occur. This is possible after we’ve integrated … Continue reading

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Sydney Data Centre increases in costs by 5% every year

Once again, like clockwork, it’s the season for multi-national companies to be raising their billing rates to Australians. This time its our Sydney Data Centre, Equinix, increasing their costs to us by 5% from January, as is their contracted right … Continue reading

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Installing GPFS

Redhat’s GPFS distributed file system is used in many HPC environments and is now known as IBM Storage Scale. It is not open-source software and can be downloaded from IBM’s sites. There is a Developer version which can be downloaded … Continue reading

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Install Claude command line

Reimage your VPS with our Ubuntu 24.04 template. Login to your VPS as root and run: apt update && apt upgrade Then install nodejs & npm with: apt install nodejs npm Now you can install claude-code with: npm install -g … Continue reading

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CentOS Vault

Here’s the site where the old CentOS Linux Distros archive their final repositories. http://archive.kernel.org/centos-vault/

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How to SSH to Older RHEL 6 hosts from modern RHEL 9 hosts

Final command line is: OPENSSL_CONF=~/.ssh/openssl.cnf ssh -o StrictHostKeyChecking=no -o ConnectTimeout=10 -o HostKeyAlgorithms=+ssh-rsa -o HostKeyAlgorithms=+ssh-dss -o PubkeyAcceptedAlgorithms=+ssh-dss -o PubkeyAcceptedAlgorithms=+ssh-rsa -o KexAlgorithms=+diffie-hellman-group-exchange-sha1 -o MACS=+hmac-sha1 -o PubkeyAcceptedKeyTypes=+ssh-rsa -o PubkeyAcceptedAlgorithms=+ssh-rsa $USER@$HOST Where ~/.ssh/openssl.cnf is: .include /etc/ssl/openssl.cnf[openssl_init]alg_section = evp_properties[evp_properties]rh-allow-sha1-signatures = yes

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More connectivity coming to our Adelaide POP

We’re installing a 2nd fibre link to our Adelaide POP. This link will be through Vocus on physical separate & diverse fibre paths to our Adelaide POP and will allow greater Internet access redundancy & capacity for us in Adelaide. … Continue reading

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