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19%
Exploring the filesystem that knows everything
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
Lucy Baldwin, 123RF
details as well [3]. The files in the Linux /proc directory also have a pleasingly hackable penchant for being directly readable as plain text, as opposed to more binary-centric proc implementations
19%
Configuration management and automation
17.06.2017
Home »  Archive  »  2017  »  Issue 39: Conta...  » 
Lead Image © Valerijs Kostreckis, 123RF.com
package before installing: $ wget http://dl.bintray.com/rundeck/rundeck-deb/rundeck-2.6.7-1-GA.deb $ sudo dpkg -i rundeck-2.6.7-1-GA.deb Installing a package is practical because it integrates a Rundeck
19%
Dispatches from the world of IT
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
of approximately $3M per MW of IT. In addition, IT systems that can tolerate higher temperatures can reduce the risk of IT failures during facility cooling outages." Red Hat and SAP Red Hat announced
19%
Detect failures and ensure high availability
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Photo by Tim Foster on Unsplash
a secondary (local) drive with the exact same capacity on each, /dev/sdb: $ cat /proc/partitions|grep sd 8 0 10485760 sda 8 1 1024 sda1 8 2 1835008 sda2 8 3
19%
Manage OpenVPN keys with Easy-RSA
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Orlando Rosu, 123rf.com
when a user leaves. checkCertWithoutUser.pl and revoke_and_delete (called in Listing 4, line 2) [6] get rid of certificates after some time has elapsed (Figure 3
19%
Warewulf 4 – GPUs
20.02.2023
Home »  HPC  »  Articles  » 
 the file /usr/local/bin/gpu_devices.sh  (Listing 6). Listing 6: /usr/local/bin/gpu_devices.sh #!/bin/bash   /sbin/modprobe nvidia   if [ "$?" -eq 0 ]; then   # Count the number of NVIDIA controllers found.   NVDEVS=`lspci | grep -i NVIDIA`   N3
19%
Booting Windows from a compressed image
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © ximagination, 123RF.com
. However you create your image file, you should now create a mount directory and mount the image (lines 3 and 4; Figure 1). Additionally, you make the recovery boot image (winre.wim) visible in line 6
19%
Setting up the lightweight Lighttpd web server
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
Photo by Brett Jordan on Unsplash
, the pcre-config tool, and the developer packages for Zlib and Bzip2. On Ubuntu, the command $ sudo apt install build-essential libpcre3-dev zlib1g-dev libbz2-dev retrieves everything you need. The numerous
19%
Software-defined networking in OpenStack with the Neutron module
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © Michael Roder, Fotolia.com
gives it the flexibility to incorporate Open vSwitch [1], MidoNet by Midokura [2], OpenContrail [3] by Juniper, and other SDN solutions – Neutron has a plugin for almost all SDN approaches on the market
19%
An introduction to FreeNAS
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © Mario Lopes, fotolia.com
should use equal-sized disks in groups of some power of two, plus the parity level of the group. Thus, the optimal RAID-Z1 group sizes are 3, 5, and 9 disks, RAID-Z2 are 4, 6, and 10 disks, and RAID-Z3

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