https://wiki.zem.org.uk/ 2026-05-08T16:08:57+00:00 https://wiki.zem.org.uk/ https://wiki.zem.org.uk/_media/wiki/logo.png text/html 2024-07-06T12:30:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/gpfs-ug-2015?rev=1720269021&do=diff GPFS User Group Meeting 2015 The following post contains my notes from the GPFS User Group meeting in York. Keynote Doris Conti, Director, Spectrum Scale (GPFS) and HPC SW Product Development Doris' Keynote started the day with a theme that continued throughout the day: IBM are encouraging their users to get in touch with developers to help steer the direction of GPFS. They are also looking for customers to join Beta programs for various components of GPFS. text/html 2024-07-06T12:30:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/gpfs-ug-2016?rev=1720269021&do=diff Spectrum Scale UK User Group Meeting 2016 I attended my 2nd Spectrum Scale User group meeting, it was amazing to see how much feedback IBM had taken onboard from 2015 and has directly influenced the product. It was also very useful to see how other users are solving their problems using GPFS. text/html 2024-07-06T12:30:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/heating?rev=1720269021&do=diff Heating System with Home Assistant Aim To be able to have multiple zones in the home, with anyone be able to call for the boiler to start the central heating. While using TRVs to restrict which zones need heating. Hardware Smart TRVs Sandy Beach Smart Heating Thermostat HY367 Rejected text/html 2024-07-06T12:30:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/irods?rev=1720269021&do=diff irods Database We use postgres as the database, so lets's install it: apt install postgresql-12 Create DB and user psql (12.9 (Ubuntu 12.9-0ubuntu0.20.04.1)) Type "help" for help. postgres=# CREATE USER irods WITH PASSWORD 'xxxx'; CREATE ROLE postgres=# CREATE DATABASE "ICAT"; CREATE DATABASE ^ postgres=# GRANT ALL PRIVILEGES ON DATABASE "ICAT" TO irods; GRANT postgres=# \l List of databases Name | Owner | Enco… text/html 2025-11-03T21:26:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/k0s-oauth?rev=1762205193&do=diff Kubernetes Authentication with OIDC This post describes how to configure a kubernetes cluster to authenticate users via OpenID Connect. As well as configuring the kubectl client. We'll be using microk8s as the kubernetes distribution and Google as the OIDC provider. text/html 2024-07-06T12:30:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/kdc?rev=1720269021&do=diff Kerberos - KDC The following describes how I configured Kerberos on Debian Lenny: Server Config: Install the required packages: aptitude install krb5-kdc krb5-admin-server krb5-clients libpam-krb5 edit /etc/krb5.conf: [libdefaults] default_realm = ZEM.ORG.UK # The following krb5.conf variables are only for MIT Kerberos. krb4_config = /etc/krb.conf krb4_realms = /etc/krb.realms kdc_timesync = 1 ccache_type = 4 forwardable = true proxiable = true # The following encryption type specificat… text/html 2025-11-16T12:55:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/nas?rev=1763297719&do=diff NAS Hard drive temperture monitoring Use the drivetemp module: modprobe drivetemp To start on boot: echo drivetemp /etc/modules-load.d/drivetemp.conf Fans Install external kernel modules: yay -S it87-dkms-git Start at boot: echo it87 > /etc/modules-load.d/it87.conf text/html 2025-11-03T22:17:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/proxmox-auth-smtp?rev=1762208256&do=diff Proxmox: Authenticated outbound SMTP Proxmox has a notication system, which includes sendmail and SMTP. The latter supports authenticated SMTP servers, but does not support retires. This solution instead configures the system MTA to use an authenticated SMTP smarthost and therefore gets the best of both worlds. text/html 2025-11-03T22:14:01+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/remote-luks-unlocking?rev=1762208041&do=diff Linux Disk Encryption - Remote Unlocking at boot If you have a encrypted root partition, it usually requires access to the console to enter the passphrase. Even if you have the root partition unencrypted and have you sensitive data on a different encrypted partition, that you manually mount after SSH is available. You still have to deal with starting services after said manual mount. text/html 2024-07-06T12:30:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/rodents?rev=1720269021&do=diff Not All Rodents Are Welcome In It It is widely accepted that Mice belong with Computers. Many users believe they are vital for the smooth operation of their PC. Unfortunately this fact does not expand to other rodents, particularly Rats. A major part of my workplaces networking went down, after much effort searching for the problem, we finally found the following. text/html 2024-07-06T12:30:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/solaris11-ips?rev=1720269021&do=diff Solaris 11 - SYSV vs. IPS It’s well known that IPS has replaced SYSV in Solaris 11. It is still possible to install SYSV style packages. But how do these 2 package managers work together. If I use the netcat package as an example, I can see it as a IPS package and a SYSV package: text/html 2024-07-06T12:30:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/solis?rev=1720269021&do=diff Solis Invertor Data Stick Secret page at /config_hide.html Original “Server A Setting” IP address: 47.88.8.200 Domain name: data1.solarmanpv.com Port: 10000 Connection: TCP <https://www.boards.ie/discussion/2058224611/solar-pv-monitoring-automation-thread> <https://github.com/XtheOne/Inverter-Data-Logger/issues/3> <https://github.com/jmccrohan/pysolarmanv5/> <https://github.com/MichaluxPL/Sofar_LSW3> <https://community.openenergymonitor.org/uploads/short-url/dF8j79PsvtCS0xQ5aPxHXO4… text/html 2024-07-06T12:30:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/start?rev=1720269021&do=diff Notes * EDI Departures * GPFS User Group Meeting 2015 * Heating System with Home Assistant * irods * Kerberos - KDC * Kubernetes Authentication with OIDC * Linux Disk Encryption - Remote Unlocking at boot * NAS * Not All Rodents Are Welcome In It * Proxmox: Authenticated outbound SMTP * Solaris 11 - SYSV vs. IPS * Solis Invertor * Spectrum Scale UK User Group Meeting 2016 * UKUUG Spring Conference 2011 text/html 2025-11-06T20:25:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/trains?rev=1762460755&do=diff EDI Departures <https://tiger.worldline.global/EDINBUR/ciss> text/html 2024-07-06T12:30:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.zem.org.uk/notes/ukuug-2011?rev=1720269021&do=diff UKUUG Spring Conference 2011 I recently attended UKUUG’s annual Large Installation Systems Administration (LISA) conference, this year hosted in Leeds over 2 days. Overall I was very impressed with the event, at some points I was torn with that track to go on. In the end I attended the following: