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68%
An IT nomad's daily diary
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Kateryna Pruchkovska, 123RF.com
I've just completed my first meeting with customers, and they look happy enough but not totally convinced. Maybe they're wondering whether I have bitten off more than I can chew. After all, I'm
68%
Grafana and Prometheus customized dashboards
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
Photo by Wynand van Poortvliet on unsplash
started with dashboarding. Spirographs For the example in this article, I'm using Linux Mint 20 (Ulyana), which has the long-term support (LTS) version of Ubuntu 20.04 running under the bonnet. In true
68%
CPU affinity in OpenMP and MPI applications
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Lead Image © podfoto, 123RF.com
: https://linux.die.net/man/8/numactl show_affinity: https://github.com/TACC/show_affinity The Author Jeff Layton has been in the HPC business for almost 25 years (starting when he was 4
68%
Manage OpenVPN keys with Easy-RSA
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Orlando Rosu, 123rf.com
/bin/python 002 # -*- coding: utf-8 -*- 003 import urllib, json, subprocess, argparse, re, sys 004 import [...] 005 006 from M2Crypto import BIO, Rand, SMIME 007 from [...] 008 009 [...] 010 ssl_key = '/etc
68%
Embarrassingly parallel computation
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © Lucy Baldwin, 123RF.com
Computation, RackN Distance DevOps: https://www.youtube.com/watch?v=U_mSPrT-ZJs "An Army of Xeon Cores To Do Your Bidding" by Federico Lucifredi, ADMIN , issue 79, 2024: pg. 93: https://www.admin-magazine.com
68%
Automate CentOS and RHEL installation with PXE
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © Michael Kempf, Fotolia.com
version from the 8.x branch, but the work shown here can be done with RHEL, as well. Installing Basic Services As the first step, you need to install CentOS 8 and set it up to suit your requirements
68%
Run your own chat server
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Photo by Volodymyr Hryshchenko on unsplash
; root /usr/share/nginx/html/blank; [...] (SSL configuration) location /.well-known/matrix/server { default_type application/json; return 200 '{"m.server": "matrix.domain.com:443
68%
Configuration management with Chef
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Alistair Cotton, 123RF.com
. Additionally, it is hard to find help or how-tos, even on the web, if you have a problem. Your best option here is to post your questions on the mailing list http://8. Infos Installation guide: http://wiki.opscode.com
68%
Run rootless Podman containers as  systemd services
26.01.2025
Home »  Archive  »  2025  »  Issue 85: Monit...  » 
Photo by Geeky Shots on Unsplash
SUSE MicroOS doesn't allow live changes. On a traditional Linux distribution this reboot isn't required. Additionally, you should create a user to run all containers: $ sudo useradd -m user The -m option
68%
Archiving email and documents for small businesses
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Pavlenko Evgenly, fotolia.com
1 split.sh 01 #! /bin/sh 02 for i in `ls -1 archive/cur` 03 do 04 # Define name component for the individual mail directory 05 pref=`date +%Y-%m-%d-%H-%M-%S` 06 07 # Push mail ... 8

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