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13%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Aleksey Mnogosmyslov, 123RF.com
_NOT_RUNNING 08 fi 09 10 pid=`cat $ASTRUNDIR/asterisk.pid` 11 ocf_run kill -s 0 $pid 12 rc=$? 13 14 if [ $rc -eq 0 ]; then 15 if ocf_is_true "$OCF_RESKEY_realtime"; then 16
13%
New Monitoring Tools
14.04.2021
Home »  HPC  »  Articles  » 
to “expand” (Figure 2). If you want to reduce the zoom, use the m key to “minimize” (Figure 3). Think of it as zooming in and out in your web browser. If you like, you can zoom in on all the charts
13%
Exploring Ubuntu cloud tools
28.06.2011
Home »  CloudAge  »  Articles  » 
 
Figure 1: Seach on "eucalyptus" in Synaptic. Although the additional packages here are not necessary for a basic installation, the eucalyptus-walrus and eucalyptus-sc packages provide Amazon S3-like
13%
Programming with Go
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Dimitar Dimitrov, 123RF.com
.0 of the compiler and the specification were released, promising compatibility with future Go releases [3]. Go is thus suitable right now for genuine software projects, not just experiments. The declared goals
13%
Stat-like Tools for Admins
19.11.2014
Home »  HPC  »  Articles  » 
. The output is fairly similar to that of vmstat and dstat (Table 3). Table 3: Mpstat Output Column Output CPU Processor number to which the output refers. In Figure 6, it refers
13%
Building Big Iron in the Cloud with Google Compute Engine
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Zavalnyuk Sergey, 123RF.com
/joe/.ssh/google_compute_engine -A -p 22 joe@1.2.3.4 -- 11 Warning: Permanently added '1.2.3.4' (ECDSA) to the list of known hosts. 12 Enter passphrase for key '/home/joe/.ssh/google_compute_engine': 13 Linux gcerocks-instance-1 3
13%
Protecting your web application infrastructure with the Nginx Naxsi firewall
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
Pansiri Pikunkaew, 123RF
] 03 04 enabled = true 05 port = http,https 06 filter = naxsi 07 logpath = /var/log/nginx/error.log 08 maxretry = 6 09 banaction = iptables-multiport-log 10 action = %(action_mwl)s 11 12 # filter
13%
Archiving email and documents for small businesses
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Pavlenko Evgenly, fotolia.com
.tex att3.tex > attach.tex 28 pdflatex attach.tex 29 30 # Generate filename from date and random number 31 32 dn=$(date +%Y-%m-%d-%H-%M-%S.$$) 33 34 # Merge PDF files 35 36 pdftk A=copy.pdf B=attach.pdf CAT
13%
High-performance Python – compiled code and C interface
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © Konrad Bak, 123RF.com
away from Python 2 and on to Python 3 pretty quickly, because, as the Python wiki [12] says, "Python 2.x is legacy, Python 3.x is the present and future of the language.") The Pyrex language is used
13%
Configuration management with CFEngine 3
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Lead Image © iofoto, Fotolia.com
release; the respective previous versions of both distributions can be found in the list. Listing 1 Installation on cf3-ubsrv $ sudo wget https://cfengine-package-repos.s3.amazonaws ... CFEngine 3 comes with a promise of more efficient configuration management and strict compliance with policies; however, it faces some tough competition. ... CFEngine 3 ... Configuration management with CFEngine 3

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