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42%
Demystified: The facts about green IT
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Iakov Kalinin, 123RF
contradicted figures provided by equipment manufacturers. The reference model for PC energy consumption measurements was an Acer Aspire M3610A, which proved to be the most energy-efficient model, consuming 75
42%
Free backup tool for data centers
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© andresr, fotolia.com
Include { 13 File = /usr/sbin 14 Options { 15 Signature = MD5 16 } 17 } 18 Exclude { 19 File = /var/lib/bacula 20 File = /tmp 21 } 22 } 23 24 Messages { 25 Name = Daemon 26
42%
Workshop: Getting web and mail servers ready for IPv6
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© suze, Photocase.com
, or just isn't compatible. To allow this to happen, add the following rule on your firewall: ip6tables -A INPUT -j REJECT -p tcp-dport 25 --reject-with tcp-reset This setup acknowledges IPv6 connections
42%
Business continuity for small to medium-sized enterprises
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Andrea, Fotolia.com
prevention strategies as Business Continuity Management. According to Wikipedia [1], the objective of business continuity management is to establish "a roadmap for continuing operations under adverse
42%
The RADOS object store and Ceph filesystem
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© Brigida Soriano, Fotolia.com
= bob 24 [osd.2] 25 host = charlie 26 [mds.a] 27 host = alice Most importantly, the nodes in the RADOS cluster must reach one another directly using the hostnames from your ceph.conf file ... 9
42%
Enterprise software management with Red Hat Satellite Server
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© robbiverte, 123RF.com
installation script installs an Apache 2.2 web server. Figure 6 shows the Overview page, which provides a single view of tasks and critical systems. To view the Systems page, where the Satellite administrator ... 9
42%
Realistic Ceph Performance Tuning Measures
02.06.2026
Home »  Archive  »  2026  »  Issue 93 Disast...  » 
Photo by Brenton Pearce on Unsplash
meaningful, generic instructions; for example, different tools are even used between Ubuntu 24.04 and Ubuntu 22.04. The recommendation is to check the documentation for your Linux distribution to find out how
42%
Taming the HPC Software Stack Fragmentation Problem
21.07.2026
Home »  Articles  » 
 
managed stack. References [1] DeLucia, A., and E. Moore. Analyzing HPC support tickets: Experience and recommendations. arXiv:2010.04321  [cs.DC]; 2020;10p, https://arxiv.org/abs/2010.04321 [2] Wolter, N
42%
Connecting dissimilar IPsec implementations
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© Yuri Arcurs, 123RF.com
192.168.2.0/24; 21 service any; 22 } 23 IPsec-policy pfs2-aes256-sha1; 24 } 25 } 26 } 27 } Again you can reuse the proposal and the policy. Assuming
42%
Moving HPC to the cloud
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Zarko Cvijovic, 123RF.com
of options, including dual four-core Xeon, dual six-core Xeon, or quad 12-core AMD processors ranging in speed from 2.2 to 2.9GHz with 24 to 128GB of RAM per server and up to 1TB of scratch local storage per

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