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31%
Using a Bash script to mirror external monitors
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © bowie15, 123RF.com
\ \([0-9]\+\)x\([0-9]\+\).*$/\1 \2 \3 \4 \5/p' )" 46 : connected_displays: ${connected_displays[@]} 47 : display_list: "$display_list" 48 49 if [[ -z "$display_list" ]] ; then 50 die "Could not find
31%
Lmod – Alternative Environment Modules
30.01.2013
Home »  HPC  »  Articles  » 
, for a library that uses a specific compiler and MPI library, you would end up with a module names like atlas-3.10.0-opempi-1.6.2-open64-5.0 . The name is useful because it tells the user the library version
31%
Server virtualization with Citrix XenServer
04.08.2011
Home »  CloudAge  »  Articles  » 
 
Server using, say, Nagios. The close link between Citrix and Microsoft is demonstrated by the availability of graphical management tools. Basic management tasks on the host system (Dom0) can be handled using
31%
TCP Stealth hides open ports
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © momo5287, 123RF.com
3 04 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 05 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 06 | Source Port
31%
Manage resources with AWS CloudFormation
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © krisckam, 123RF.com
Press database name", "Type": "String", "MinLength": "1", "MaxLength": "64", "AllowedPattern" : "[a-zA-Z][a-zA-Z0-9]*", "ConstraintDescription" : "must begin with a letter and contain only
30%
Regular expression security
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © Jakub Jirsak, 123RF.com
of email addresses: ^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*$ When you see a string like this for the first time, the semantics are not immediately apparent, but regular
30%
First steps in IT automation by Rex
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Konstantin Chagin , 123RF.com
architecture => 'i686' 10 kernel => 'Linux' 11 kernelrelease => '3.11.0-15-generic' 12 } 13 $hostname = 'sugar' 14 $operating_system = 'Ubuntu' 15 $operatingsystem = 'Ubuntu' 16 $operating
30%
Nagios Passive Checks
21.08.2014
Home »  Archive  »  2014  »  Issue 22: OpenS...  » 
Lead Image © Lisa Young, 123RF.com
{ 02 name check_5min_24x7 03 register 0 04 max_check_attempts 3 05 check_interval 5 06
30%
Hybrid public/private cloud
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Photo by JJ Ying on Unsplash
region: eu-west-3 08 licensefile: license.lic 09 wholenet: 10.100.0.0/16 10 frontnet: 10.100.254.0/28 11 netmaskback: 17 12 backnet: "10.100.0.0/{{ netmaskback }}" 13 lnet: 10.0.2.0
30%
Ansible collections simplify AIX automation
05.08.2024
Home »  Archive  »  2024  »  Issue 82: Sover...  » 
Lead Image © alexutemov, 123RF.com
/.ansible/collections:/usr/share/ansible/collections executable location = /usr/bin/ansible python version = 3.11.2 (main, Feb 17 2023, 09:48:02) [GCC 8.5.0 20210514 (Red Hat 8.5.0-18)] (/usr/bin/python3.11) jinja version = 3.1.2 libyaml = False

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