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15%
Application-aware batch scheduler
26.03.2025
Home »  Archive  »  2025  »  Issue 86: Data...  » 
Photo by Toby Elliott on Unsplash
it with the & character): for i in $(seq 1 6); do spark-submit --master k8s://$APISERVER --deploy-mode cluster --name spark-wordcount --class org.apache.spark.examples.JavaWordCount local
15%
Securing email communication with GnuPG
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Photo by Amol Tyagi on Unsplash_Key.jpg
in which security and data integrity are paramount, especially when it comes to information with EU-RESTRICTED and NATO-RESTRICTED information [6]. Provisioning Keys in the WKD A Web Key Directory (WKD
15%
Managing computers with Rex
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Stanislav Rishnyak, 123RF.com
computers running the Linux distributions CentOS 5 and 6, Debian 5 and 6, Fedora, Gentoo, Mageia, openSUSE, RHEL 5 and 6, Scientific Linux, and Ubuntu 10.04, 11.04, and 12.04. Additionally, it can handle
15%
The RADOS object store and Ceph filesystem: Part 2
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Kateryna Pruchkovska, 123RF.com
map for a setup consisting of six OSDs (i.e., individual storage devices in servers) distributed over three racks: crushtool --num_osds 6 -o crush.example.map --build host straw 1 rack straw 2 root
15%
Our Technological Enlightenment
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© lightwise, 123RF.com
the numbers, sizes, capacities, and prices of the 1990s with those of today. For example, in 1995, a 500MB hard disk was considered large; today, my iPhone 4 has a 16GB capacity, of which I have just over 6GB
15%
Creating RAID systems with Raider
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
©Slawomir Kruz, 123RF.com
of partitions and refuses, for example, to create a RAID 6 with only two RAID partitions. However, what do you do if the machine has already been used for a length of time with a simple filesystem? In principle
15%
Intrusion detection with Prelude
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Chittima Kasa, 123RF.com
went to press. I installed Prelude on Debian Squeeze (6.0) and Ubuntu 11.10 for this article. Seeing Past False Positives SIEM systems are, without a doubt, an important component of any modern
15%
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© 2011 PR NEWSWIRE
Enterprise Edition and a slew of warranty and support options. Red Hat 6.0 and SUSE Linux Enterprise Server 11.2 are also available for the TS430, as well as VMware ESX/ESXi. The servers are due at the end
15%
Monitoring KVM instances with Opsview
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Gina Sanders, Fotolia
Since the Linux kernel 2.6.20 release in February 2007, the Kernel-Based Virtual Machine, KVM [1], has made much progress in its mission to oust other virtualization solutions from the market. KVM
15%
Tuning your filesystem's cache
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
experience [2]. A good tool for cache control is vmtouch [3], which is at home on most Linux 2.6, FreeBSD 7.x, or Solaris 10 kernels; mileage may vary on other *nix variants. Expect partial functionality

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