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06.10.2019

Home » Archive » 2019 » Issue 53: Secur... »

width: 35em; 10 margin: 0 auto; 11 font-family: Tahoma, Verdana, Arial, sans-serif; 12 } 13 14 15 16

Welcome to nginx!

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Setting up Windows clients with Chef

11.10.2016

Home » Archive » 2016 » Issue 35: Persi... »

Lead Image © Sebastian Kaulitzki, 123RF.com

Chef Client, version 12.4.0 [2015-06-29T11:17:24-07:00] INFO: *** Chef 12.4.0 *** [2015-06-29T11:17:24-07:00] INFO: Chef-client pid: 3160 Chef Client finished, 0/2 resources updated in 18.855305 seconds

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Performance testing monitoring solutions

30.11.2025

Home » Archive » 2012 » Issue 07: Xen v... »

were run on a virtual system (using ESX as the hypervisor) with fixed reservations for CPU and memory. To be more precise, I used a virtual CPU running at 1.5GHz and with 512MB of RAM in the virtual

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Using the MQTT IoT protocol for unusual but useful purposes

03.12.2015

Home » Archive » 2015 » Issue 30: OpenD... »

(msg.payload)) 07 08 mqtt = paho.Client() 09 mqtt.on_message = on_message 10 11 mqtt.connect("localhost", 1883, 60) 12 mqtt.subscribe("linux/+", 0) 13 14 mqtt.loop_forever() The client now connects

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Debugging the Linux kernel with the Qemu emulator

30.11.2025

Home » Archive » 2012 » Issue 07: Xen v... »

in your kernel configuration and possibly rebuild the kernel. Including the symbols, vmlinux weighs in at more than 40MB. Next, open a connection to the debug server by typing target remote :1234 (Figure 3

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VAX emulation with OpenVMS

18.07.2013

Home » Archive » 2013 » Issue 15: What’... »

rq2 ra92 08 set rq3 cdrom 09 10 attach rq0 d0.dsk 11 attach rq1 d1.dsk 12 attach rq2 d2.dsk 13 14 attach -r rq3 cdrom.iso 15 16 set rl disable 17 set ts disable 18 19 set xq mac=08-00-2B-AA-BB-CC 20

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Checking password complexity with John the Ripper

30.11.2025

Home » Archive » 2011 » Issue 6: Perfor... »

from compromised systems is John the Ripper (John). John is a free tool from Openwall [1]. System administrators should use John to perform internal password audits. It's a small (<1MB) and simple

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Get started with OpenShift

01.08.2019

Home » Archive » 2019 » Issue 52: Stop... »

, uncompress the tarball and enter the resulting directory: $ tar xvfz minishift-1.33.0-linux-amd64.tgz $ cd minishift-1.33.0-linux-amd64 If you run the ls command, you can see a 27MB binary called minishift

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Automate CentOS and RHEL installation with PXE

02.02.2021

Home » Archive » 2021 » Issue 61: Secur... »

_servers: - 10.42.0.10 - 10.42.0.11 dhcp_pxeboot_server: 10.42.0.12 The subnet must be a subrange of the subnet where the VM with the infrastructure services itself is located. However, when

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Vagrant, Serf, Packer, and Consul create and manage development environments

21.08.2014

Home » Archive » 2014 » Issue 22: OpenS... »

. For example, the nodes could search for updates and install them. Serf is written in Go and licensed under the Mozilla Public License 2.0. Source code is available on GitHub [12], with prebuilt packages

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